Journal of chemical technology and biotechnology最新文献

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Green valorization of lignocellulosic residues: advances in pretreatment and fractionation into cellulose and lignin for nanoparticles production 木质纤维素残留物的绿色增值:用于纳米颗粒生产的预处理和分馏成纤维素和木质素的进展
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-09-06 Epub Date: 2026-01-04 DOI: 10.1002/jctb.70126
Carla Dias, Andreia F. M. Santos, Lisa Mersmann, Victor G. L. Souza, Isabel Coelhoso, Maria Helena Godinho, Luis C. Branco, Ana Luísa Fernando
{"title":"Green valorization of lignocellulosic residues: advances in pretreatment and fractionation into cellulose and lignin for nanoparticles production","authors":"Carla Dias,&nbsp;Andreia F. M. Santos,&nbsp;Lisa Mersmann,&nbsp;Victor G. L. Souza,&nbsp;Isabel Coelhoso,&nbsp;Maria Helena Godinho,&nbsp;Luis C. Branco,&nbsp;Ana Luísa Fernando","doi":"10.1002/jctb.70126","DOIUrl":"https://doi.org/10.1002/jctb.70126","url":null,"abstract":"<p>The sustainable valorization of lignocellulosic biomass into high-value nanomaterials is gaining momentum as an alternative to synthetic nanoparticles, driven by their biodegradability, biocompatibility, and broad applicability. Nanocellulose and nanolignin, derived from cellulose and lignin extracted from agricultural and forestry residues, offer potential in packaging, medicine, energy, and advanced materials. However, the intrinsic recalcitrance of lignocellulosic feedstocks necessitates efficient pre-treatment strategies that are both environmentally responsible and industrially viable. This review explores recent advances in eco-friendly methods for the extraction of cellulose and lignin, with particular emphasis on ionic liquids (ILs), deep eutectic solvents (DESs), and catalytic systems. ILs demonstrate high dissolution and recycling potential, DESs provide tunability and low toxicity, while catalysts—such as zeolites and metal oxides—enhance selectivity and lignin-first valorization. The integration of complementary techniques, including microwave- and ultrasound-assisted extractions, further improve efficiency. To evaluate the sustainability of these emerging processes, the Path2Green framework was applied. Results show that, despite frequent claims of ‘green’ performance, most IL- and DES-based systems achieved only neutral or slightly negative sustainability scores, largely due to synthetic origins, energy demands, and limited recycling. Catalytic flow-through processes achieved the most favorable profiles, highlighting the importance of solvent choice, closed-loop design, and scalability. Overall, progress demonstrates that no universal solution exists; instead, feedstock-specific, integrated approaches are essential. Future directions should prioritize bio-based solvents, closed-loop recycling, renewable energy integration, and standardized reporting to bridge the gap between laboratory innovation and industrial application. © 2026 Society of Chemical Industry (SCI).</p>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 10","pages":"1931-1953"},"PeriodicalIF":2.7,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced stability, reusability, and lactose hydrolysis of β-galactosidase immobilized in ZIF-L frameworks 在ZIF-L框架中固定化β-半乳糖苷酶的稳定性、可重用性和乳糖水解性增强
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-09-06 Epub Date: 2025-08-07 DOI: 10.1002/jctb.70035
Bayan Al-Meetani, Ramtha Almadhaani, Sana Abdallah Salim, Ayat Hassan, Fahed Javed, Sulaiman Al-Zuhair
{"title":"Enhanced stability, reusability, and lactose hydrolysis of β-galactosidase immobilized in ZIF-L frameworks","authors":"Bayan Al-Meetani,&nbsp;Ramtha Almadhaani,&nbsp;Sana Abdallah Salim,&nbsp;Ayat Hassan,&nbsp;Fahed Javed,&nbsp;Sulaiman Al-Zuhair","doi":"10.1002/jctb.70035","DOIUrl":"https://doi.org/10.1002/jctb.70035","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>The immobilization of β-galactosidase (lactase) on solid supports is widely pursued to enhance enzyme stability, reusability, and catalytic efficiency for industrial applications. In this study, Zeolitic Imidazolate Framework-L (ZIF-L), a zinc-based metal–organic framework, was employed as a support for lactase immobilization to improve its performance in lactose hydrolysis processes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The immobilization process yielded 5.6 mg of enzyme per gram of support, with the immobilized lactase retaining 67.3% of its initial activity. Scanning electron microscopy (SEM) confirmed the morphological integration of the enzyme with ZIF-L, while Fourier-transform infrared (FTIR) spectroscopy indicated chemical interactions associated with successful immobilization. The immobilized enzyme demonstrated good operational stability, retaining 86% of its initial activity after four consecutive cycles. In terms of storage stability, 77% of the enzyme's activity was maintained after 2 weeks at 4 °C. Catalytic efficiency was significantly improved post-immobilization, with lactose hydrolysis reaching 68% within 1 h and 93% after 3 h at 37 °C, outperforming the free enzyme under the same conditions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>ZIF-L proved to be an effective support material for lactase immobilization, offering enhanced stability, reusability, and catalytic efficiency. These results underscore its potential for application in dairy processing and other industrial sectors requiring efficient lactose hydrolysis. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 10","pages":"2024-2035"},"PeriodicalIF":2.7,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing integrated multienzyme-membrane system to maximize xylo-oligosaccharide yield and eradicate inhibitors: addressing fouling and sugar purification in pineapple residue processing 优化集成多酶-膜系统,以最大限度地提高低聚木糖产量和消除抑制剂:解决菠萝渣加工中的污垢和糖净化问题
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-09-06 Epub Date: 2026-07-06 DOI: 10.1002/jctb.70234
Kohmalam Ayanasamy, Shariza Jamek, Mohd Shafiq Mohd Sueb
{"title":"Optimizing integrated multienzyme-membrane system to maximize xylo-oligosaccharide yield and eradicate inhibitors: addressing fouling and sugar purification in pineapple residue processing","authors":"Kohmalam Ayanasamy,&nbsp;Shariza Jamek,&nbsp;Mohd Shafiq Mohd Sueb","doi":"10.1002/jctb.70234","DOIUrl":"https://doi.org/10.1002/jctb.70234","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Xylo-oligosaccharides (XOS) are high-value prebiotic sugars generated from lignocellulosic biomass, which are increasingly used in bioprocessing industries. However, the presence of furfural produced during pretreatment complicates their recovery from biomass. This inhibitor not only hinders enzymatic hydrolysis, but also disrupts downstream fermentation, particularly alcoholic fermentation, where yeast activity is reduced. Valorization of pineapple waste via enzymatic hydrolysis and membrane separation provides a sustainable method for producing XOS while controlling inhibitory compounds. This study investigates the effects of operating parameters including pH, pressure, temperature and agitation speed on the simultaneous recovery of XOS and the mitigation of furfural, in correlation with membrane fouling behaviour.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>One-factor-at-a-time screening identified favourable operating conditions at pH 5.5, 5 bar, 40 °C and 250 rpm, achieving 156% XOS recovery and 54% furfural removal. Secondary screening via two-level factorial analysis identified ideal operating conditions at pH 8, 5 bar, 80 °C and 200 rpm, achieving 120% XOS yield with 23% furfural removal, whereas chromatographic analysis further confirmed the production of 0.3 g L<sup>−1</sup> xylose corresponding to a 167% yield under the optimized conditions. Film theory analysis revealed superior mass transfer characteristics for the multienzyme system compared with single-enzyme systems.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The integrated multienzyme-membrane system effectively enhanced XOS recovery while facilitating inhibitor removal and mitigating membrane fouling during pineapple residue processing. The improved mass transfer performance and selective separation behaviour reveal the potential of this approach for sustainable lignocellulosic bioprocessing and bioactive sugar purification. © 2026 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 10","pages":"2167-2188"},"PeriodicalIF":2.7,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In focus: 3rd GREENERING international conference 焦点:第三届绿色国际会议
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-09-06 DOI: 10.1002/jctb.70254
Senka Vidovic, Leonarda Francesca Liotta, Cristina Cavinato, Zongsu Wei
{"title":"In focus: 3rd GREENERING international conference","authors":"Senka Vidovic,&nbsp;Leonarda Francesca Liotta,&nbsp;Cristina Cavinato,&nbsp;Zongsu Wei","doi":"10.1002/jctb.70254","DOIUrl":"https://doi.org/10.1002/jctb.70254","url":null,"abstract":"","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 10","pages":"1929-1930"},"PeriodicalIF":2.7,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemical-free synthesis of hematite from natural magnetite for sustainable photocatalytic degradation of dyes in textile wastewater toward agricultural reuse 天然磁铁矿无化学合成赤铁矿用于纺织废水染料可持续光催化降解及农业回用
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-09-06 Epub Date: 2026-07-03 DOI: 10.1002/jctb.70232
Nithyananda Suman, Senthil Karuppanan
{"title":"Chemical-free synthesis of hematite from natural magnetite for sustainable photocatalytic degradation of dyes in textile wastewater toward agricultural reuse","authors":"Nithyananda Suman,&nbsp;Senthil Karuppanan","doi":"10.1002/jctb.70232","DOIUrl":"https://doi.org/10.1002/jctb.70232","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Hematite is a promising material for water purification owing to its visible-light activity. This study presents a chemical-free synthesis of hematite via thermal oxidation of naturally occurring magnetite, yielding a sustainable photocatalyst for the treatment of textile industrial wastewater for agricultural reuse. The synthesized hematite was comprehensively characterized to evaluate its physicochemical properties.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>Structural analysis confirmed the formation of crystalline hematite with a crystallite size of 64 nm. Morphological studies revealed agglomerated particles predominantly distributed within the 50–300 nm size range. Detailed microstructural characterization showed agglomerated particles composed of nanocrystalline domains of 10–20 nm, with an average particle size of 73 nm and distinct lattice fringes of 0.27 nm, confirming the polycrystalline and phase-pure nature of hematite. Thermal analysis identified the optimal oxidation temperature required for complete phase transformation. Optical characterization revealed a band gap of 1.90 eV, indicating strong visible-light photocatalytic potential. Vibrational analysis further supported the successful formation of crystalline hematite, while magnetic measurements confirmed its weak ferromagnetic behavior. The catalyst exhibited excellent degradation of malachite green (90%) and rhodamine B (82%) within 2 h, retaining 85% and 78% efficiency after five cycles. Scavenger quenching experiments revealed that superoxide radicals (<sup>•</sup>O<sub>2</sub><sup>−</sup>) were the dominant reactive species driving degradation. In real textile wastewater, 64% degradation was achieved under sunlight. Seed germination assays with treated water indicated nontoxic effects, confirming suitability for agricultural reuse.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>Overall, this work demonstrates an eco-friendly, scalable route for producing high-performance hematite catalysts from natural resources for sustainable environmental remediation. © 2026 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 10","pages":"2152-2166"},"PeriodicalIF":2.7,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anti-inflammatory and cytotoxic properties of kānuka (Kunzea ericoides) subcritical water extract kānuka (Kunzea ericoides)亚临界水提取物的抗炎和细胞毒性
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-09-06 Epub Date: 2026-06-21 DOI: 10.1002/jctb.70225
Indhuja Devadass, Simon Swift, Saeid Baroutian
{"title":"Anti-inflammatory and cytotoxic properties of kānuka (Kunzea ericoides) subcritical water extract","authors":"Indhuja Devadass,&nbsp;Simon Swift,&nbsp;Saeid Baroutian","doi":"10.1002/jctb.70225","DOIUrl":"https://doi.org/10.1002/jctb.70225","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Kānuka (<i>Kunzea ericoides</i>) is a medicinal plant native to New Zealand with numerous therapeutic benefits due to its rich bioactive profile. Although several <i>in vitro</i> studies have shown promising anti-inflammatory activity, substantial evidence elucidating its underlying inflammatory regulatory mechanism and evaluating its cytotoxic profile remains limited. This study investigated the effects of kānuka subcritical water extract on NF-<i>κ</i>B activation and its cytotoxicity using THP-1 Dual cell lines, focusing on potential applications in pharmaceutical, cosmetic, and nutraceutical products.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The kānuka subcritical water extract exhibited temperature-, time- and dose-dependent cytotoxic activity in THP-1 Dual cells. Higher extract concentrations reduced cell viability (up to 60%), whereas lower concentrations (≤ 0.17 mg/mL) were non-cytotoxic. The extract inhibited NF-<i>κ</i>B activation in a temperature- and dose-dependent manner. Optimal inhibition was observed at 160 and 170 °C at the higher concentration (1.25 mg/mL), with minimal cytotoxicity, whereas lower concentrations (0.31–0.62 mg/mL) were ineffective against NF-<i>κ</i>B activation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The kānuka subcritical water extract showed temperature- and concentration-dependent anti-inflammatory activity with minimal cytotoxicity in THP-1 Dual cells. However, the effect on NF-<i>κ</i>B inhibition was lower than expected given its antioxidant profile, indicating potential interactions among its bioactive constituents. These observations highlight the importance of bioactive characterization and mechanistic studies to optimize extraction parameters and improve the potential for safe anti-inflammatory applications. © 2026 The Author(s). <i>Journal of Chemical Technology and Biotechnology</i> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 10","pages":"2072-2084"},"PeriodicalIF":2.7,"publicationDate":"2026-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jctb.70225","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fluidized bed materials for the combustion of fuels, wastes, and biomass: A review 用于燃料、废物和生物质燃烧的流化床材料:综述
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-08-03 Epub Date: 2026-06-04 DOI: 10.1002/jctb.70208
Arseniy Lyulyukin, Olesya Zaikina, Anton Koskin, Yury Dubinin
{"title":"Fluidized bed materials for the combustion of fuels, wastes, and biomass: A review","authors":"Arseniy Lyulyukin,&nbsp;Olesya Zaikina,&nbsp;Anton Koskin,&nbsp;Yury Dubinin","doi":"10.1002/jctb.70208","DOIUrl":"https://doi.org/10.1002/jctb.70208","url":null,"abstract":"<p>Fluidized bed combustion is a widely adopted technology for fuel and waste processing, with bed material selection critically influencing process efficiency, operational stability, and emission profiles. This review systematically examines the four functional categories of bed materials – inert, sorbent, oxygen carrier, and catalytic – synthesizing current knowledge on their performance characteristics, degradation mechanisms, and application constraints. Quantitative analysis of operational parameters reveals that inert materials, such as silica-based beds, require combustion temperatures of 1000–1200 °C to achieve complete fuel conversion, resulting in thermal NOx formation and agglomeration risks that initiate at temperatures between 660 and 980 °C depending on feedstock composition. In contrast, catalytic systems enable stable operation at 650–750 °C, achieving combustion efficiencies exceeding 99.9% while maintaining fluidization stability. Sorbent materials employed for carbon capture demonstrate CO<sub>2</sub> absorption capacity but exhibit progressive deactivation over multiple cycles, with mechanical attrition rates representing a limiting factor for long-term application. Oxygen carriers utilized in chemical looping configurations exhibit oxygen transport capacities ranging from 2 to 8 wt%, with operational lifetimes estimated between 2000 and 5000 h under continuous fluidized bed conditions. Mechanical degradation through attrition and fragmentation constitutes a universal constraint across all material classes, directly impacting process economics and operational continuity. The review identifies the development of bed materials combining high mechanical durability, sustained functional activity, and resistance to agglomeration at reduced operating temperatures as the principal direction for future research and technological advancement. © 2026 Society of Chemical Industry (SCI).</p>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 9","pages":"1695-1709"},"PeriodicalIF":2.7,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on the porous-medium catalytic oxidation characteristics of MnCo@CF and its CFD numerical simulation MnCo@CF多孔介质催化氧化特性及其CFD数值模拟研究
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-08-03 Epub Date: 2026-07-05 DOI: 10.1002/jctb.70221
Xinfeng Qian, Xin Wang, Hui Zhang, Dawei Hou, Linjun Yang
{"title":"Study on the porous-medium catalytic oxidation characteristics of MnCo@CF and its CFD numerical simulation","authors":"Xinfeng Qian,&nbsp;Xin Wang,&nbsp;Hui Zhang,&nbsp;Dawei Hou,&nbsp;Linjun Yang","doi":"10.1002/jctb.70221","DOIUrl":"https://doi.org/10.1002/jctb.70221","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Volatile organic compounds (VOCs) are key atmospheric pollutants causing haze and photochemical smog, with toxic and carcinogenic properties. Catalytic oxidation is a widely used industrial VOC abatement technology, but noble-metal catalysts are costly and easily deactivated, making non-noble-metal catalysts a promising alternative. Porous inserted catalytic oxidizer emerges as a novel advanced technology, and computational fluid dynamics (CFD) simulation is an essential tool for studying its flow and reaction characteristics. This study prepared MnCo@<i>CF</i> porous-medium catalyst via a hydrothermal method, and investigated its catalytic performance and oxidation characteristics through experiments and CFD numerical simulation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>MnCo@<i>CF</i> featured spinel MnCo₂O₄ as the primary active phase, with Cu derived from the copper foam substrate participating in catalysis and forming chestnut-like spherical nanostructures. This catalyst achieved 90% toluene conversion at 562 K, with an apparent activation energy of 85.1 kJ mol<sup>−1</sup>, exhibiting superior performance to that of the single-metal counterparts Mn@<i>CF</i> and Co@<i>CF</i>. CFD simulations revealed intense turbulence and vortexes within the porous framework, with the turbulent kinetic energy reaching 2.054 × 10<sup>−2</sup> m<sup>2</sup> s<sup>−2</sup>; the VOC removal efficiency was merely approximately 0.2% at an inlet velocity of 0.21 m s<sup>−1</sup>, whereas inlet temperature variations in the range of 273–373 K and inlet concentration fluctuations from 0.1 to 3 wt% exerted negligible effects on the catalytic process.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>MnCo@<i>CF</i> porous-medium catalyst was successfully synthesized <i>in situ</i> on copper foam via a hydrothermal method, showing excellent VOC catalytic oxidation activity with high toluene conversion at moderate temperatures. The porous framework has extensive internal vortex disturbances, leading to sharp spatial fluctuations of flow velocity, pressure, and turbulent kinetic energy, which are closely related to the solid skeleton distribution. Inlet flow velocity is the key factor affecting catalytic performance, while inlet temperature and concentration fluctuations within a certain range have relatively small impacts on the catalytic characteristics. © 2026 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 9","pages":"1843-1855"},"PeriodicalIF":2.7,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A highly efficient ZIF-8@AmCs/CTAB composite for removing the toxic dyes and Cr(VI) from contaminated water 一种高效去除污染水中有毒染料和Cr(VI)的ZIF-8@AmCs/CTAB复合材料
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-08-03 Epub Date: 2026-06-10 DOI: 10.1002/jctb.70214
Prem Chand, Vijay Kumar Vishvakarma, Dhanraj T Masram
{"title":"A highly efficient ZIF-8@AmCs/CTAB composite for removing the toxic dyes and Cr(VI) from contaminated water","authors":"Prem Chand,&nbsp;Vijay Kumar Vishvakarma,&nbsp;Dhanraj T Masram","doi":"10.1002/jctb.70214","DOIUrl":"https://doi.org/10.1002/jctb.70214","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Industrial wastewaters are frequently contaminated with hazardous pollutants, including synthetic dyes and heavy metals. Adsorption has emerged as an efficient and cost-effective method for removing contaminants from wastewater, and advanced porous materials such as zeolitic imidazolate framework-8 (ZIF-8) have gained significant attention due to their high surface area. But pure ZIF-8 does not efficiently interact with different pollutants. To overcome this, ZIF-8 can be successfully combined with biopolymers and surface-active molecules. Such hybrid composites provide a promising approach for the simultaneous removal of dyes and heavy metal ions from wastewater. This study focused on the integration of aminated chitosan (AmCs with ZIF-8, followed by surface modification with cetyle triethyl ammonium bromide (CTAB), resulting in the development of a novel ZIF-8@AmCs/CTAB composite for the removal of Crystal violet (CV) dye and Cr(VI) metal ions from water.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>Spectroscopic techniques and density functional theory (DFT) were used to characterise the composite. Its high surface area (1350 m<sup>2</sup>/g), hierarchical porosity, and a positively charged surface enable results of maximal uptakes of 782 mgg-<sup>1</sup> for CV dye, and 286 mgg<sup>−1</sup> for Cr(VI) ions. Using non-covalent interactions (NCI), hydrogen bonding, and electrostatic interactions from AmCs/CTAB, microporous confinement by ZIF-8, synergistic interactions achieved removal efficiencies of over 98% for CV and over 70% for Cr(VI).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>Our work demonstrates that ZIF-8@AmCs/CTAB is a promising, cost-effective composite for treating multi-pollutant wastewater. The composite shows efficient and stable performance even after five cycles of use and maintains a removal efficiency of more than 92%. and durability over a broad pH range (2–10). © 2026 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 9","pages":"1877-1890"},"PeriodicalIF":2.7,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling the Kinetics of the Essential Oil Hydrodistillation from Lavender Flowers 薰衣草花精油加氢蒸馏动力学模拟
IF 2.7 4区 生物学
Journal of chemical technology and biotechnology Pub Date : 2026-08-03 Epub Date: 2026-06-10 DOI: 10.1002/jctb.70211
Miljana S. Krstić, Aleksandra B. Perović, Ivana T. Karabegović, Ana V. Veličković, Jelena M. Avramović, Bojana R. Danilović, Vlada B. Veljković
{"title":"Modeling the Kinetics of the Essential Oil Hydrodistillation from Lavender Flowers","authors":"Miljana S. Krstić,&nbsp;Aleksandra B. Perović,&nbsp;Ivana T. Karabegović,&nbsp;Ana V. Veličković,&nbsp;Jelena M. Avramović,&nbsp;Bojana R. Danilović,&nbsp;Vlada B. Veljković","doi":"10.1002/jctb.70211","DOIUrl":"https://doi.org/10.1002/jctb.70211","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Lavender essential oil (LEO) is widely used in cosmetics, medicine, and food due to its antimicrobial and antioxidant properties. Hydrodistillation is the most common extraction method, but it is often inefficient, with long extraction times and thermal degradation of sensitive compounds. Understanding the extraction kinetics is essential for optimizing yield and scaling up production. This study aimed to identify the most accurate kinetic model for LEO hydrodistillation and to evaluate the influence of distillation flask size, distillation rate (which depends on heating rate, i.e., thermal energy input), and flower-to-water ratio on extraction performance.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The LEO yield followed a hyperbolic profile under all tested conditions, with an initial rapid ‘washing’ phase followed by a slower ‘diffusion’ phase. Among five tested models, the simultaneous washing and diffusion model (Model II) provided the best fit, with the lowest corrected Akaike Information Criterion values, and an initial extraction rate up to 1.95 mL/(g min). Larger flasks were associated with faster washing-stage kinetics, shortening the time to reach 80% of the total oil yield. Lower flower-to-water ratios (below 1:10 g/mL) increased washing efficiency and final yield.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>Model II accurately captures LEO extraction kinetics and supports more effective process optimization. Tailoring flask size, distillation rate, and water content can significantly improve oil yield while reducing extraction time and thermal loss. These findings provide a useful basis for scaling up sustainable, high-efficiency essential oil production. © 2026 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"101 9","pages":"1856-1868"},"PeriodicalIF":2.7,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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