Journal of chemical technology and biotechnology最新文献

{"title":"Gas vector and surface tension reducer to enhance biofuel production through syngas fermentation with Clostridium carboxidivorans","authors":"Mariana Mattos Pereira do Nascimento Correa,&nbsp;Robson Corrêa Gonçalves,&nbsp;Carolina Santos Jordani Benevenuti,&nbsp;Tatiana Felix Ferreira,&nbsp;Priscilla Filomena Fonseca Amaral","doi":"10.1002/jctb.7827","DOIUrl":"https://doi.org/10.1002/jctb.7827","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Syngas fermentation using acetogenic bacteria as biocatalysts has emerged as an alternative for a carbon-neutral economy. One of the major challenges in syngas fermentation is gas–liquid mass transfer. In this work, the surfactant Tween®80 (0.15%) and perfluorodecalin (PFC, 20% v/v) – a gas vector—were added to the fermentation medium with <i>Clostridium carboxidivorans</i> to increase acetic acid, ethanol, and butanol production through gas–liquid mass transfer improvement. The production of biofuels and biochemicals was evaluated in heterotrophic (non-syngas) and mixotrophic (with syngas) fermentations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Although higher biomass was achieved in heterotrophy, mixotrophic fermentation resulted in 27% higher ethanol production, and in presence of butanol, which was not detected in the first condition. Acetic acid concentration was not affected. Gaseous fermentation in serum flasks with Tween®80 and PFC increased the production of butanol and acetic acid by 1.3-fold compared with syngas fermentation without these compounds. Ethanol production was similar in both conditions. In the bioreactor, the productivity of the total metabolites was 3.3-fold higher with Tween®80 and PFC.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The combination of Tween® 80 and PFC enhances metabolite production even without syngas and improves gas–liquid mass transfer during syngas fermentation, offering a promising solution to overcome mass transfer challenges in this process. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 7","pages":"1413-1424"},"PeriodicalIF":2.8,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264718","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}

{"title":"Isolation and characterization of phenolic substances from pomegranate residues","authors":"Costas S Papageorgiou,&nbsp;Anastasios Kyriazis,&nbsp;Αndreas D Zentelis,&nbsp;Vassilis A Ioannidis,&nbsp;Fotini N Lamari,&nbsp;Varvara Sygouni,&nbsp;Alexandra Lianou,&nbsp;Christakis A Paraskeva,&nbsp;George Aggelis","doi":"10.1002/jctb.7830","DOIUrl":"https://doi.org/10.1002/jctb.7830","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Pomegranate Residues (PRs) can be utilized for the development of a fermentation substrate for bioethanol production, while the contained bioactive substances could be recovered with physicochemical separation processes to be used in pharmaceutics or cosmetic products. Herein, we focused on the phenolics' characterization at each step of the proposed procedure and their isolation. First, thermal hydrolysis was conducted on PRs and the product was separated into liquid phase and pulp. The liquid phase was subjected to pH adjustment and to a second thermal treatment (to ensure sterility and its exploitability as a fermentation substrate), while pulp was submitted to extraction tests. The total phenolic content (TPC) and total carbohydrates concentration (TCC) were measured at each stage and the contained phenolics were identified using LC-MS. Adsorption and desorption experiments in a column packed with XAD16 N resin were conducted on the liquid extracts to isolate phenolic substances.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>Significant amounts of high-added value substances (punicalagins, ellagic acid, gallic acid) were found in the liquid samples and in the pulp extract. The appropriate stages to recover the contained phenolics were identified. The adsorption and desorption curves and the HPLC-DAD analysis showed that for the tested experimental conditions, gallic acid and galloyl-hexoside was recovered at ~3 min, punicalagin ~at 15 min and ellagic acid, ellagic acid hexoside at ~15–30 min.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>This work showed that during the treatment of PRs to produce fermentation substrate, it is possible to isolate significant phenolic compounds with the use of physicochemical processes. © 2025 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":"100 5","pages":"923-934"},"PeriodicalIF":2.8,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jctb.7830","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818343","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}

{"title":"Lactic acid production by direct fermentation of agave fructans","authors":"Nayeli Martha-Lucero,&nbsp;Alma Cruz-Guerrero,&nbsp;Ernesto Favela-Torres,&nbsp;Gustavo Viniegra-González,&nbsp;Luis Alberto Cira-Chávez,&nbsp;María Isabel Estrada-Alvarado","doi":"10.1002/jctb.7828","DOIUrl":"https://doi.org/10.1002/jctb.7828","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Lactic acid (LA) is used in various industries and is produced mainly through lactic acid fermentation (LAF). The high cost of glucose, a common substrate, is a major challenge for LA production. Alternatives like fructans from agave are being explored for this purpose, including the production of probiotic beverages using the sap of agave leaves wasted in the field. This study aims to compare the kinetics of LA fermentation using agave fructans and glucose to identify the kinetic factors to be optimize for future use of this process.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The study found that direct fructan fermentation by <i>Lactobacillus bulgaricus delbrueckii</i> (LDF) and <i>Lactobacillus casei</i> (LCF) achieved approximately half the productivity (<i>P</i> = 0.50, 0.59 gL⁻¹/h) as compared to glucose fermentation with the same strains (<i>P</i> = 0.92, 1.33 gL⁻¹/h) apparently because of the delay of fructan hydrolysis. The number of Colony Forming Units (CFU) increased following a logistic function, with a rapid decay observed for pH &lt; 4, following first-order kinetics. Despite the decay, CFU levels remained above 1E7 CFU/mL. This finding could be useful to produce probiotic beverages using agave leaves as a fermentation broth.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The LAB strains, <i>Lacticaseibacillus casei NRRL B-441</i> (LC) and <i>Lactobacillus delbrueckii bulgaricus NRRL B-763</i> (LD), efficiently utilize commercial agave fructans as the primary carbon source, converting them into LA without prior hydrolysis. Fermentation productivity using fructans was approximately half of that obtained with glucose. This supports using agave fructans and sap for innovative lactic acid fermentations, including probiotic beverages. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 5","pages":"935-941"},"PeriodicalIF":2.8,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818344","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}

{"title":"Catalytic activity of g-C3N4/SA and Ag0–Fe0-fabricated g-C3N4/SA composite beads towards dye-containing wastewater treatment: a comparative study","authors":"Rimsha Aslam,&nbsp;Shanza Rauf Khan,&nbsp;Sarmad Ali,&nbsp;Saba Jamil,&nbsp;Tahseen Kamal,&nbsp;Saima Noreen,&nbsp;Ali Raza,&nbsp;Maham Fatima,&nbsp;Aiman Naeem,&nbsp;Muhammad Jamshed Latif","doi":"10.1002/jctb.7826","DOIUrl":"https://doi.org/10.1002/jctb.7826","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Sodium alginate (SA)/carbon nitride (g-C₃N₄) composite beads loaded with silver (Ag) and iron (Fe) bimetallic nanoparticles (Ag⁰–Fe⁰/g-C₃N₄/SA) introduce a new approach in wastewater treatment. Ag⁰–Fe⁰ synergy is utilized to enhance reduction efficiency and ensure sustainable water purification. Composite beads of g-C₃N₄/SA were prepared and then introduced to a bimetallic solution of Ag and Fe and reduced to their zero valent state (M⁰) by treating it with sodium borohydride (NaBH₄). Ag⁰–Fe⁰/g-C₃N₄/SA was further used for the catalytic reduction of harmful compounds from water.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>X-ray diffraction was used to analyze chemically synthesized composite beads. The high intensity of Ag peaks confirmed that the amount of loaded Ag was higher than Fe. Scanning electron microscopy showed the shape of Ag⁰–Fe⁰/g-C₃N₄/SA and g-C₃N₄/SA composite beads to be rough and granular. Atomic absorption spectroscopy confirmed that the composite beads exhibited higher adsorption capacity for Ag ions as compared to Fe ions. Fourier transform infrared spectroscopy confirmed the presence of O<span></span>H, CN, CO, and C<span></span>H functional groups in the sample. Catalytic reduction of Erichrome Black T (EBT), Methyl Orange (MO), Rhodamine B (Rh-B), and Reactive Black 5 (RB-5) was carried out using Ag⁰–Fe⁰/g-C₃N₄/SA and g-C₃N₄/SA as catalysts. Various parameters such as apparent rate constant (<i>k</i>_app), reduced concentration, percentage reduction, reduced time, and half-life were also studied to analyze the catalytic activity of both catalysts.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>Overall, Ag⁰–Fe⁰/g-C₃N₄/SA showed the highest percentage reduction of 73%, 93%, 94%, and 92% for EBT, MO, Rh-B, and RB-5, respectively, and was effectively used for water treatment. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 4","pages":"873-882"},"PeriodicalIF":2.8,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717402","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}

{"title":"Dynamic control of reactive pressure-swing distillation process for separating tetrahydrofuran/methanol/water","authors":"Kun Yang,&nbsp;Shangkun Wang,&nbsp;Zeng Li,&nbsp;Xiaojing Liu,&nbsp;Fangkun Zhang,&nbsp;Baoming Shan,&nbsp;Peizhe Cui,&nbsp;Qilei Xu","doi":"10.1002/jctb.7825","DOIUrl":"https://doi.org/10.1002/jctb.7825","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Reactive pressure-swing distillation (RPSD) is an innovative and promising technology for the separation of azeotropic systems, offering high integration and efficiency. However, the dynamic control of RPSD processes presents significant challenges due to complex coupling and nonlinearity. This paper investigates the practical control structures for the RPSD processes, and the dynamic control structure was first designed for the RPSD system for separating tetrahydrofuran/methanol/water.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULT</h3>\u0000 \u0000 <p>Three practical control structures based on PID control were developed for existing separation processes, both with and without heat integration. The results demonstrated that all designed control structures effectively withstand disturbances of ±20% in feed flow rate and composition, exhibiting strong anti-interference capabilities. Furthermore, an advanced intelligent control strategy was designed, integrating PID control with Back Propagation Neural Networks (BPNN) to enhance the performance of the product composition controllers.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The results indicated that the BPNN can accurately predict temperature setpoints using easily measurable variables, facilitating stable control of product concentrations without the necessity for direct composition measurements. This proposed control strategy offers an efficient and reliable alternative for the control of RPSD processes. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 4","pages":"818-840"},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717156","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}

{"title":"Integration of CO2 capture and microalgae cultivation: demonstration assessment of outdoor Scenedesmus acutus cultivation using gaseous ammonia as a nitrogen source","authors":"Fritz E. Vorisek,&nbsp;Yaying Ji,&nbsp;Jesse Thompson,&nbsp;Kunlei Liu,&nbsp;Mark Crocker","doi":"10.1002/jctb.7824","DOIUrl":"https://doi.org/10.1002/jctb.7824","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Towards the goal of integrating CO₂ capture using aqueous ammonia with its utilization for algae cultivation, <i>Scenedesmus acutus</i> (UTEX B72) was grown in 1100 L open raceway ponds using CO₂ and NH₃ supplied from gas cylinders. CO₂/NH₃ mole ratios of 7 and 10 were employed, the gas mixture acting as a surrogate for the output from a CO₂ scrubbing system using aqueous ammonia.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Compared to <i>Scenedesmus acutus</i> grown in open ponds using gaseous CO₂ and NaNO₃ as the N-source, the ponds supplied with gaseous CO₂ and NH₃ displayed higher productivity at both CO₂/NH₃ ratios, with the higher ratio providing the best growth. Depending on the culturing conditions and CO₂/NH₃ ratio, CO₂ utilization ranged up to 15.8% and NH₃ utilization to 23.0%. These rather low values reflect the fact the high CO₂/NH₃ feed rate used, resulting in a substantial release of NH₃ from the ORPs (~45%).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>These findings demonstrate the suitability of gaseous NH₃ as a N-source for microalgae cultivation, while highlighting the need for a control strategy that closely balances the CO₂/NH₃ supply with the algae growth rate. The produced algae biomass possessed a high protein and low ash content, rendering it particularly suitable for use as a bioplastic feedstock. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 4","pages":"858-864"},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717300","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}

{"title":"Green synthesis of tert-butyl hydroperoxide via oxidation of tert-butanol in various reactors","authors":"Angus Shiue,&nbsp;Jyh-Cheng Jeng,&nbsp;Kai-Yen Chin,&nbsp;Jie-An Chen,&nbsp;Ming-Hao Lin,&nbsp;Shu-Mei Chang,&nbsp;Graham Leggett","doi":"10.1002/jctb.7821","DOIUrl":"https://doi.org/10.1002/jctb.7821","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>In this study, tert-butyl hydroperoxide (TBHP) was prepared by the oxidation of TBA via the catalysis of sulfuric acid by the green and environmentally-friendly hydrogen peroxide oxidant sustainable method using micro-channel reactor - Corning Advanced-Flow Reactors (AFR), AFR connected pipe, tubular reactor, and batch reactor. The effects of process parameters such as temperature, molar ratio of catalyst, molar ratio of oxidant, and residence time to TBHP on the reaction performance were systematically investigated to explore the conversion and the ratio of main and by-products. The reliability of this method at a certain temperature was verified with a kinetic study.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The reaction temperature was 70 °C, the optimum molar ratio of TBA to H₂SO₄ was determined to be 1:1, and the optimum molar ratio of H₂O₂ to TBA was determined to be 0.8. AFR and AFR connected pipe process significantly improved the efficiency and safety of the reaction and greatly increased TBA conversion and TBHP yield compared with the tubular and batch reactor. In the range of 60 to 70 °C, a second order kinetic expression characterizes the tert-butyl alcohol conversion well (R² = 0.9499).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSIONS</h3>\u0000 \u0000 <p>Our findings revealed that the observed correlation is a practical tool to figure the TBA conversion and TBHP and di-tert-butyl peroxide (DTBP) production. The activation energies of the corresponding reactions AFR and AFR external pipeline were 45.26 and 86.98 kJ mol⁻¹, respectively. The overall heat transfer coefficient achieved in the Corning AFR was validated as scalable. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 4","pages":"841-857"},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717299","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}

{"title":"Banana peel fermentation broth as a viable alternative carbon source for biological sulfate reduction in acid mine drainage","authors":"Yu Gao,&nbsp;Jiaxing Li,&nbsp;Qintong Li,&nbsp;Rui Sun,&nbsp;Wenxin Hua,&nbsp;Chengze Wang,&nbsp;Jianliang Xue,&nbsp;Ping Chen","doi":"10.1002/jctb.7822","DOIUrl":"https://doi.org/10.1002/jctb.7822","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Acid mine drainage (AMD) is a major environmental threat in mining areas due to its strong acidity, high concentrations of sulfate, and heavy metals. Utilizing sulfate-reducing bacteria (SRB) to reduce SO₄²⁻ and remove heavy metals is a promising and economical AMD treatment. However, AMD lacks sufficient electron donors for sulfate reduction. Banana peel fermentation broth, containing various small-molecule organic acids, is an effective alternative carbon source for SRB, promoting the use of agricultural waste in environmental remediation. This study aims to investigate the impact of adding banana peel fermentation broth to the bioreactor on pollutant removal performance and analyze its effect on the microbial community structure.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>The bioreactor utilising banana peel fermentation broth as an electron donor, demonstrated the effective removal of various pollutants, including sulfate (55.7%), Cu²⁺ (90.74%), Mn²⁺ (70.77%), Fe²⁺ (81.28%) and Cd²⁺ (100.00%), with an average reduction of 74.20% in chemical oxygen demand (COD). Sulfate reduction resulted in an increase in pH from 5.5 to 7.9. Microbial community structure analysis revealed that the primary genera involved in sulfate reduction were <i>Desulfurispora</i> and <i>Desulfovibrio</i>, while <i>Delftia</i> contributes to the immobilization of heavy metals. Additionally, the key genera responsible for fermentation to produce small molecule acids were <i>Leptolinea</i> and <i>Sedimentibacter</i>. In symbiosis with SRB, they play a crucial role in the removal efficiency of metals and sulfate.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>The overall sulfate and heavy metals removal efficiency was found to be satisfactory after 30 days of continuous reactor operation. There was a notable increase in microbial abundance and community diversity within the reactor. Therefore, banana peel fermentation broth is a promising alternative organic carbon source in acid mine drainage(AMD) treatment. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 4","pages":"865-872"},"PeriodicalIF":2.8,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717049","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}

{"title":"Fast and efficient preparation of a carbonaceous catalyst from the rice husk under microwave irradiation for the conversion of xylose into furfural","authors":"Vinh Thanh Chau Doan,&nbsp;Nhung Tuyet Thi Nguyen,&nbsp;Thinh An Tan Le,&nbsp;Phuong Hoang Tran","doi":"10.1002/jctb.7818","DOIUrl":"https://doi.org/10.1002/jctb.7818","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>Furfural is an important platform compound obtained through the dehydration of xylose, a key component of lignocellulosic biomass. Carbonaceous catalysts for this conversion have received rising interest due to low-cost price and easy modification. Rice husk is an abundant agricultural waste that could be employed as a carbon source for the preparation of many carbon materials, especially through green methods.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>A carbonaceous catalyst (RH-SO₃H) derived from rice husk through microwave (MW)-assisted carbonization and sulfonation was employed as the catalyst for the conversion of xylose to furfural in dimethyl sulfoxide (DMSO). Fourier transform infrared (FT-IR) spectroscopy results indicated that RH-SO₃H had typical signals of Brønsted acid groups while other characteristics were examined through other techniques, namely X-ray diffraction (XRD), energy-dispersive X-ray (EDX) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), and elemental mapping. Through many investigations, the furfural yields were impacted by the nature of solvents, substrate concentrations, catalyst dosages, reaction temperatures, and reaction time. A furfural yield of 60.3% was obtained at 160 °C for 8 h. The catalyst recyclability and the scalability ability of the procedure were examined, and a mechanism was also proposed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>Rice husk could be used as a starting source to prepare a carbon material <i>via</i> a MW-irradiated protocol. The conversion of xylose to furfural under the catalysis of RH-SO₃H was easily operated, and the desired product was obtained in good yield. The crucial advantages of the current process are environmentally friendly, inexpensive, simple, and highly large-scale application. The findings pave the way for eco-friendly industrial applications, promoting circular economy principles and reducing reliance on non-renewable resources in platform chemical production. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 4","pages":"792-803"},"PeriodicalIF":2.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717346","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}

{"title":"Synergistic modification of Cu3V2O8 nanosheeta photoelectrodes with NiFe and NiOx for efficient and ultra-stable photoelectrochemical water oxidation","authors":"Zhiqiang Wang,&nbsp;Wenxuan Dong,&nbsp;Jinzhan Su","doi":"10.1002/jctb.7812","DOIUrl":"https://doi.org/10.1002/jctb.7812","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> BACKGROUND</h3>\u0000 \u0000 <p>The design and development of environmentally friendly, efficient, and stable photoelectrodes are crucial for advancing photoelectrochemical (PEC) water-splitting technology.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> RESULTS</h3>\u0000 \u0000 <p>In this study, we report a novel strategy for the preparation of copper vanadate (Cu₃V₂O₈) nanosheet arrays using a low-temperature solution method. Notably, this is the first instance of directly growing Cu₃V₂O₈ nanosheet arrays on FTO (fluorine-doped tin oxide) conductive glass. The morphology of the developed nanosheet arrays offers a larger specific surface area and improved bulk charge separation efficiency, which are desirable characteristics for PEC water-splitting applications. To further enhance the stability and PEC performance of the Cu₃V₂O₈ nanosheets, a synergistic modification strategy was employed. This approach involved the deposition of an NiO_<i>x</i> passivation layer and the incorporation of an NiFe co-catalyst. The synergistic modification strategy significantly improved the PEC performance and stability of the Cu₃V₂O₈ nanosheet arrays. The modified photoelectrode achieved an impressive photocurrent of 0.67 mA cm⁻² at 1.23 V <i>versus</i> a reversible hydrogen electrode and demonstrated stability for over 80 h of operation.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> CONCLUSION</h3>\u0000 \u0000 <p>This work provides a new, low-cost, and effective strategy for the preparation of efficient and stable photoelectrodes for PEC water splitting, which is a crucial step towards the development of environmentally friendly and sustainable energy technologies. © 2025 Society of Chemical Industry (SCI).</p>\u0000 </section>\u0000 </div>","PeriodicalId":15335,"journal":{"name":"Journal of chemical technology and biotechnology","volume":"100 4","pages":"732-741"},"PeriodicalIF":2.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717345","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}