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Volatile organic compounds absorption in non-aqueous solvents: a critical review based on hydrodynamics and mass transfer considerations
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162413
Pierre-François Biard
{"title":"Volatile organic compounds absorption in non-aqueous solvents: a critical review based on hydrodynamics and mass transfer considerations","authors":"Pierre-François Biard","doi":"10.1016/j.cej.2025.162413","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162413","url":null,"abstract":"The search for alternative solvents to water for the absorption of hydrophobic volatile organic compounds (VOCs) has led to the publication of numerous scientific papers over the past decades. The solvents considered must meet stringent constraints, especially a very low volatility. Such solvents are typically one to two orders of magnitude more viscous than water. In particular, many authors synthesized and screened for this particular application a multitude of solvents claimed to be green, such as ionic liquids or deep eutectic solvents. This critical review summarizes the main physico-chemical properties of the solvents studied, together with the measurement techniques used and the type of gas–liquid contactor implemented. Above all, it aims to provide a practical guide to gas–liquid transfer with a focus on the main criteria to be evaluated to confirm the potential of any non-aqueous solvent for VOC absorption. To date, the use of non-aqueous solvents would require to implement packed columns at industrial scale. For this purpose, hydrodynamics and mass transfer simulations are proposed. They assess the influence of multiple parameters, such as viscosity, Henry’s law constant, liquid-to-gas mass flow rates ratio, etc. considering different non-aqueous solvents (transformer oil, two deep eutectic solvents, one ionic liquid, di-2-ethylhexyl adipate, and a silicone oil). These simulations enabled to draw crucial conclusions about the hydrodynamics of non-aqueous solvents and their performances to remove VOCs. Finally, this critical review underlines the main criteria to respect when evaluating alternative solvents to water for the absorption of hydrophobic VOCs.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"50 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to “Tailoring an energy-efficient carbon breathing paper by rigid-flexible interlocking for life support systems” [Chem. Eng. J. 508 (2025) 160895]
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.161892
Qin Xiang, Wei Lu, Lianlong Zhan, Lei Wang, Lingping Xiao, Runcang Sun, Shuangfei Wang, Hui He
{"title":"Corrigendum to “Tailoring an energy-efficient carbon breathing paper by rigid-flexible interlocking for life support systems” [Chem. Eng. J. 508 (2025) 160895]","authors":"Qin Xiang, Wei Lu, Lianlong Zhan, Lei Wang, Lingping Xiao, Runcang Sun, Shuangfei Wang, Hui He","doi":"10.1016/j.cej.2025.161892","DOIUrl":"https://doi.org/10.1016/j.cej.2025.161892","url":null,"abstract":"Dear Dr Simona Liguori,","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"106 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid deterministic and Monte Carlo modeling of controlled degradation of polypropylene
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162473
Jakob I. Straznicky, Piet D. Iedema, Klaas Remerie, Kimberley B. McAuley
{"title":"Hybrid deterministic and Monte Carlo modeling of controlled degradation of polypropylene","authors":"Jakob I. Straznicky, Piet D. Iedema, Klaas Remerie, Kimberley B. McAuley","doi":"10.1016/j.cej.2025.162473","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162473","url":null,"abstract":"Controlled degradation of polypropylene (CPP) is a post-polymerization process used to produce many PP grades from high-molecular-weight PP. During CPP, PP of predominantly isotactic composition is fed to an extruder along with initiator, which induces scission. During CPP, the isotactic content of PP decreases due to radical-migration side reactions, which influence the properties of the PP. Two previous models predict tacticity changes during CPP: a computationally expensive kinetic Monte Carlo (kMC) model and a deterministic model that ignores certain reactions. The current study develops a new hybrid model that incorporates all important radical migration reactions, without the computational expense of kMC methods. The model is then used to estimate kinetic parameters. The proposed model uses off-line stochastic simulations to determine instantaneous rates of changed pentad formation, based on local species concentrations at different locations along the extruder. This instantaneous pentad information is stored in 3D arrays, which are subsequently used for deterministic model calculations. The deterministic portion of the model consists of dynamic material balances, which predict local radical concentrations and accumulate the changed pentads of different types. Model predictions agree with a previous kMC model and require only a fraction of the computing time. Chain-transfer-to-polymer and two types of radical-migration rate coefficients are estimated using <sup>13</sup>C NMR data from industrial CPP experiments. The proposed model provides a good fit to the experimental data. This model will be useful to companies who use reactive extrusion to modify PP and wish to better understand and control PP tacticity","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"10 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neighboring clusters as additional adsorption sites to regulate the selectivity of single-atom catalysis
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162508
Xuan Zheng, Shifei Ding, Yi Lu, Jian Cai, Jiace Hao, Zechao Zhuang, Chenglong Wang, Mingliang Du, Han Zhu
{"title":"Neighboring clusters as additional adsorption sites to regulate the selectivity of single-atom catalysis","authors":"Xuan Zheng, Shifei Ding, Yi Lu, Jian Cai, Jiace Hao, Zechao Zhuang, Chenglong Wang, Mingliang Du, Han Zhu","doi":"10.1016/j.cej.2025.162508","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162508","url":null,"abstract":"The electrochemical reduction of nitrogenous waste to high-value hydroxylamine (NH<sub>2</sub>OH) represents a promising avenue for both chemical synthesis and environmental remediation. However, developing highly selective and efficient electrocatalysts is crucial for stabilizing NH<sub>2</sub>OH intermediates and preventing over-reduction to ammonia. Herein, we report an atomic-scale engineering strategy for fabrication of Sn single atom (SAs) cooperated with neighboring Sn atomic clusters (ACs) supported on nitrogen-doped carbon nanofibers (Sn ACSAs/NCNFs). The Sn SAs, acting as the metal center with a distinctive Sn-N<sub>3</sub> coordination environment, are synergistically enhanced by neighboring Sn ACs. The resulting Sn SA-AC sites demonstrate state-of-the-art NH<sub>2</sub>OH selectivity from nitrite electroreduction under CO<sub>2</sub>-saturated KHCO<sub>3</sub> solution (FE<sub>NH2OH</sub>: 97 %), significantly outperforming the selectivity of Sn SAs alone (FE<sub>NH2OH</sub>: 64.26 %). In situ characterizations and theoretical simulations reveal that the bridge adsorption configuration of NO<sub>2</sub><sup>−</sup> on Sn SA-AC sites enables NH<sub>2</sub>OH formation with a lower adsorption energy of −2.02 eV, compared to the linear adsorption of NO on Sn SA sites (−1.37 eV). Upon reaching the stage of hydroxylamine formation, the co-adsorption of NH<sub>2</sub>OH intermediates on Sn SA-AC sites weakens their binding strength, thereby preventing the over-reduction into NH<sub>3</sub>. This approach offers a promising pathway for the sustainable and efficient production of NH<sub>2</sub>OH.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"4 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced hydrogen storage performance of Mg(BH4)2 with in-situ generated TiO2 and TiH2 catalysts
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162488
Zhenxuan Ma, Jiaguang Zheng, Ao Xia, Qingbo Zhang, Meiling Lv, Cong Li, Panpan Zhou
{"title":"Enhanced hydrogen storage performance of Mg(BH4)2 with in-situ generated TiO2 and TiH2 catalysts","authors":"Zhenxuan Ma, Jiaguang Zheng, Ao Xia, Qingbo Zhang, Meiling Lv, Cong Li, Panpan Zhou","doi":"10.1016/j.cej.2025.162488","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162488","url":null,"abstract":"Magnesium borohydride was a highly promising solid-state hydrogen storage material, but its actual use still faced challenge due to its sluggish dehydrogenation kinetics and poor reversibility. In this study, the Tetraethyl titanate (TET) was chosen as a liquid-state catalytic precursor and was incorporated into Mg(BH<sub>4</sub>)<sub>2</sub> through ball milling and thermal treatment process to build in-situ formed TiO<sub>2</sub> and TiH<sub>2</sub> dopants. The initial dehydrogenation temperature of Mg(BH<sub>4</sub>)<sub>2</sub>-10 %TET composite was reduced by more than 100 °C comparing to that of un-doped Mg(BH<sub>4</sub>)<sub>2</sub>. The isothermal dehydrogenation curves and kinetic fitting calculations indicated that the activation energy for the two-step hydrogen release of Mg(BH<sub>4</sub>)<sub>2</sub>-10 % TET composite was reduced to 252.58 kJ/mol and 144.15 kJ/mol, respectively. Cyclic dehydrogenation tests demonstrated that after four cycles, the reversibility of Mg(BH<sub>4</sub>)<sub>2</sub>-10 %TET sample was improved by 75 % compared to the un-doped Mg(BH<sub>4</sub>)<sub>2</sub>. Further structural analysis showed that the in-situ formed TiH<sub>2</sub> and TiO<sub>2</sub> distributed uniformly on Mg(BH<sub>4</sub>)<sub>2</sub> particles, which further acted as the active catalyzing agent and improved the kinetic and reversible properties of Mg(BH<sub>4</sub>)<sub>2</sub>.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"34 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microbe-imprinted polymers for rapid drug-resistant bacteria recognition
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162543
Yuanzi Wu, Kaiqiang Zhou, Wenhui Li, Min Huan, Zhichao Yu, Fen Yan, Huixiao Hong, Dianping Tang, Yansong Guo, Zuquan Weng
{"title":"Microbe-imprinted polymers for rapid drug-resistant bacteria recognition","authors":"Yuanzi Wu, Kaiqiang Zhou, Wenhui Li, Min Huan, Zhichao Yu, Fen Yan, Huixiao Hong, Dianping Tang, Yansong Guo, Zuquan Weng","doi":"10.1016/j.cej.2025.162543","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162543","url":null,"abstract":"The rise of antibiotic-resistant bacteria poses a serious global health threat, highlighting the urgent need for novel strategies beyond conventional antibiotic therapies. This study explores the potential of microbe-imprinted polymers (MIPs) as innovative, pathogen-specific affinity agents. Utilizing microbial surface-initiated polymerization, MIPs are in-situ synthesized on the surface of target microbes, creating flexible heteropolymers that precisely replicate microbial surface structures. This method exhibits high affinity (<em>K<sub>D</sub></em> = 2.7×10<sup>8</sup> CFU/mL for <em>E. coli</em>) and selectivity at the strain level. MIPs offer significant advantages over traditional antibodies, including greater stability, cost-effectiveness, and a broader spectrum of binding capabilities, making them effective for identifying and targeting various microbial strains, including unidentified or drug-resistant variants. Moreover, their favorable biocompatibility and functional resilience in diverse environments position MIPs as promising candidates for rapid pathogen detection and therapeutic applications. This research paves the way for advanced biomimetic materials in microbe-specific diagnostics and combating infections, addressing the critical need for effective tools in antibiotic resistance surveillance.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"4 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fire safety protective polyvinyl alcohol-based “green” aerogels with micro/nano dual-scale porous structure for passive radiative cooling
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162530
Lian Yin, Jiale Zhang, Jianjian Luo, Congling Shi, Xiaodong Qian, Bin Yu, Sheng Zhang, Keqing Zhou
{"title":"Fire safety protective polyvinyl alcohol-based “green” aerogels with micro/nano dual-scale porous structure for passive radiative cooling","authors":"Lian Yin, Jiale Zhang, Jianjian Luo, Congling Shi, Xiaodong Qian, Bin Yu, Sheng Zhang, Keqing Zhou","doi":"10.1016/j.cej.2025.162530","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162530","url":null,"abstract":"Radiant cooling materials have received widespread attention in areas such as green building due to their zero-energy thermoregulation advantages. Nevertheless, it is clear that radiative cooling materials represented by polymers have a high fire hazard. Hence, micro/nano dual-scale porous structured polyvinyl alcohol (PVA)-based “green” aerogels embedded with diatomite-based melamine-phytates (DIA@MPA) nanoparticles were acquired by the action of chemical and physical cross-linking. Of note, this unique structure and composition gave PVA/DIA@MPA-30 with excellent compression strength (1742.5 kPa), low thermal conductivity (0.05 W/(m·K)), high solar reflectance (91.47 %), strong infrared emission (92.98 %). Moreover, PVA/DIA@MPA-30 achieved a dramatic decline of 15.3 °C under the extreme solar intensity of 738 W/m<sup>2</sup> in summer, providing a theoretical net cooling powers of up to 82.3 and 99.9 W·m<sup>−2</sup> during the daytime and nighttime, respectively. More importantly, energy consumption simulations showed that the PVA/DIA@MPA-30 displayed significant energy saving under different climatic conditions around the world. The radiative cooling performance outperforms most of the literature is attributed to the Mie scattering of the micro/nano dual-scale porous structure, as well as the rich chemical bonding of C–O–C, Si–O and P–O–C that generates more infrared emission. Also, PVA-based aerogel showed superior fire resistance due to the introduction of DIA@MPA, which heated transformed into a protective char layer rich in C, P and Si elements and released non-combustible gases and phosphorus-containing free radicals to inhibit fire development. Therefore, the integration of outstanding cooling performance and high fire safety is important for expanding the design ideas and practical applications of multifunctional radiant coolers.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"66 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electroreduction of nitrate into ammonia on Co3O4: Mechanistic insights into Co2+-promoted NO3RR performance
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162506
Yu Sun, Yaxin Shi, Yuhang Gao, Menglong Sun, Yongbin Yao, Haowen Yu, Yong Xu, Xi Wang, Yijun Yang
{"title":"Electroreduction of nitrate into ammonia on Co3O4: Mechanistic insights into Co2+-promoted NO3RR performance","authors":"Yu Sun, Yaxin Shi, Yuhang Gao, Menglong Sun, Yongbin Yao, Haowen Yu, Yong Xu, Xi Wang, Yijun Yang","doi":"10.1016/j.cej.2025.162506","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162506","url":null,"abstract":"Co<sub>3</sub>O<sub>4</sub>, a spinel-structured compound, displays effective electrocatalytic activity in the electroreduction from nitrate to ammonia (NO<sub>3</sub>RR). The specific active site responsible for this reaction remains debated, with tetrahedrally coordinated Co<sup>2+</sup> and octahedrally coordinated Co<sup>3+</sup> proposed as potential candidates. Experimental observations have shown that larger hexagonal Co<sub>3</sub>O<sub>4</sub> platelets with relatively higher proportion of Co<sup>2+</sup> ions, exhibit enhanced NO<sub>3</sub>RR performance, achieving an ammonia yield of 22.38 mg h<sup>−1</sup> cm<sup>−2</sup> and 86.8 % faradaic efficiency at −0.9 V (vs. RHE). Density functional theory (DFT) calculations indicate a lower adsorption energy for NO<sub>3</sub><sup>−</sup> on the tetrahedral Co<sup>2+</sup> ions in the Co<sub>3</sub>O<sub>4</sub> (111) plane compared to octahedral Co<sup>3+</sup> ions of the (110) plane and further supported these findings by revealing a lower energy barrier for the rate-determining step on the (111) plane (0.73 eV) in contrast to the (110) plane (1.27 eV), thereby identifying Co<sup>2+</sup> ions as the primary active sites for the NO<sub>3</sub>RR process. These findings provide critical insights into the design of efficient cobalt-based electrocatalysts for nitrate reduction.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"121 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synergistic Na-S modified Fe-Cu catalysts for efficient CO2 hydrogenation to higher alcohols
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162498
Ruwei Yao, Yang Yu, Bin Wu, Yueyin Song, Qinqin Niu, Congming Li, Jian Wei, Qingjie Ge
{"title":"Synergistic Na-S modified Fe-Cu catalysts for efficient CO2 hydrogenation to higher alcohols","authors":"Ruwei Yao, Yang Yu, Bin Wu, Yueyin Song, Qinqin Niu, Congming Li, Jian Wei, Qingjie Ge","doi":"10.1016/j.cej.2025.162498","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162498","url":null,"abstract":"Selective synthesis of higher alcohols from CO<sub>2</sub> hydrogenation necessitates effective coordination among the sequential steps of CO<sub>2</sub> activation, CO activation, selective C − C coupling, and hydrogenated termination. From the perspectives of thermodynamic and kinetic constraints, balancing the surface reactive species and enhancing *C<em><sub>n</sub></em>H<em><sub>x</sub></em>−*C(H)O coupling during the reaction are crucial for higher alcohols synthesis. Herein we develop a Na-S modified Fe-Cu catalyst, which achieves a high C<sub>2+</sub> alcohols yield of 108 mg g<sub>cat</sub><sup>−1</sup>h<sup>−1</sup>, and the contribution of C<sub>2+</sub> alcohols to total alcohol products exceeds 90 %. It is observed that moderate Cu addition and Na-S modification synergistically improve the capability of iron catalysts for non-dissociative CO activation. The critical *C<em><sub>n</sub></em>H<em><sub>x</sub></em>−*C(H)O coupling step can take place not only between Fe sites with distinct properties induced by Na-S modification, but also between adjacent Fe and Cu sites. This work proposes a strategy of employing Cu in combination with Na-S dual promoters as a tunable platform to optimize iron catalysts for alcohol production, and current limitations are also pointed out.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"105 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanochemical treatment boosted microwave-assisted sulfonation of softwood lignin for the fabrication of dye dispersant
IF 15.1 1区 工程技术
Chemical Engineering Journal Pub Date : 2025-04-10 DOI: 10.1016/j.cej.2025.162552
Xu Fu, Ling-Ping Xiao, Bo-Wen Meng, Wen-Jie Li, Run-Cang Sun
{"title":"Mechanochemical treatment boosted microwave-assisted sulfonation of softwood lignin for the fabrication of dye dispersant","authors":"Xu Fu, Ling-Ping Xiao, Bo-Wen Meng, Wen-Jie Li, Run-Cang Sun","doi":"10.1016/j.cej.2025.162552","DOIUrl":"https://doi.org/10.1016/j.cej.2025.162552","url":null,"abstract":"Utilizing industrial lignin, which has the features of high yield and low added value, as a raw material for dye dispersants can produce significant environmental benefits and promote the sustainable development of resources. Ingeniously, we investigated the mechanochemical method to enhance effect in microwave-assisted sulfonation and the preparation of lignin-based dye dispersant using epichlorohydrin cross-linking. The results showed that lignin ball milling with Na<sub>2</sub>SO<sub>3</sub> could significantly increase the amount of C–O active structures and enhance its sulfonation reactivity. Under a lignin/Na<sub>2</sub>SO<sub>3</sub> ratio of 1:1, the charge density of the sulfonated lignin (milled lignosulfonate, MLS) achieved through microwave-assisted sulfomethylation up to 1.87 meq/g. Notably, the charge density of lignosulfonate (milled epichlorohydrin-cross-linked lignosulfonate, MELS) obtained by cross-linking with epichlorohydrin reached 1.91 meq/g with a degree of substitution of 1.45 mmol/g and molecular weight of 10530 g/mol. As compared with two commercial lignosulfonates and MLS, MELS displayed the greatest dispersion stability, increased the dyeing rate and K/S<sub>λmax</sub> value of dyed fiber while reducing staining. This work paved a new avenue for lignin valorization and provided new insights into the fabrication of lignin-derived dye dispersant.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"74 1","pages":""},"PeriodicalIF":15.1,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143819521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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