Selective extraction of lithium from spent battery powders has garnered significant attention and research interest. However, existing methods are often constrained by their heavy reliance on acid solutions or complex leaching systems. This study introduced a novel high-temperature hydrothermal reduction (HTHR) method for the selective extraction of lithium from spent lithium manganate battery powders. Starch, an environmentally friendly reducing agent, was employed in this process. Under optimized conditions at 240 °C and a starch addition of 40 % by weight, the leaching efficiency of lithium exceeded 95 %, with a selectivity of over 92 %. The leached lithium was subsequently recovered as lithium carbonate. Meanwhile, the residual transition metals in the lithium-extraction residue were effectively leached using a salt-thermal and water-leaching approach. Under roasting conditions of 350 °C and an ammonium sulfate dosage of 1.7 times the mass of the residue, the extraction efficiency of key elements after water leaching surpasses 99 %. The manganese-containing roasted product was identified as ammonium manganate sulfate in a double salt form. This research offered valuable insights and innovative approaches for the sustainable development of the lithium-ion battery recycling industry.
{"title":"High-temperature hydrothermal reduction for selective extraction of lithium from spent lithium-ion batteries","authors":"Xiaolong Dai, Tiangui Qi, Xiaobin Li, Zhihong Peng, Guihua Liu, Qiusheng Zhou, Yilin Wang, Leiting Shen","doi":"10.1016/j.jiec.2025.05.049","DOIUrl":"10.1016/j.jiec.2025.05.049","url":null,"abstract":"<div><div>Selective extraction of lithium from spent battery powders has garnered significant attention and research interest. However, existing methods are often constrained by their heavy reliance on acid solutions or complex leaching systems. This study introduced a novel high-temperature hydrothermal reduction (HTHR) method for the selective extraction of lithium from spent lithium manganate battery powders. Starch, an environmentally friendly reducing agent, was employed in this process. Under optimized conditions at 240 °C and a starch addition of 40 % by weight, the leaching efficiency of lithium exceeded 95 %, with a selectivity of over 92 %. The leached lithium was subsequently recovered as lithium carbonate. Meanwhile, the residual transition metals in the lithium-extraction residue were effectively leached using a salt-thermal and water-leaching approach. Under roasting conditions of 350 °C and an ammonium sulfate dosage of 1.7 times the mass of the residue, the extraction efficiency of key elements after water leaching surpasses 99 %. The manganese-containing roasted product was identified as ammonium manganate sulfate in a double salt form. This research offered valuable insights and innovative approaches for the sustainable development of the lithium-ion battery recycling industry.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"153 ","pages":"Pages 291-300"},"PeriodicalIF":5.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145705427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-22DOI: 10.1016/j.jiec.2025.05.045
Wenjin Zhang, Shuzhong Wang, Hui Liu, Junan Zhao, Xuetao Deng, Lu Liu, Zicheng Li, Jianqiao Yang
Barium titanate is the most typical lead-free ferroelectric material with a perovskite structure featuring a high dielectric constant. It serves as one of the most representative electronic device materials in the electronics industry. However, existing industrial synthesis methods face challenges such as high energy consumption and suboptimal product performance. Supercritical hydrothermal synthesis, as an emerging technique, has demonstrated promising prospects due to its tunability and efficiency. Nonetheless, its reaction mechanisms and technical bottlenecks still require further investigation. This paper reviews the main industrial synthesis methods for nanostructured barium titanate, with a particular focus on the advantages, reaction mechanisms, and challenges associated with the supercritical hydrothermal method. It further discusses how modification techniques such as element doping, surface functionalization, and composite material fabrication in hydrothermal systems enhance the performance of the material and summarizes its advancements in emerging application fields. Finally, the paper evaluates improvements and commercialization prospects of supercritical hydrothermal synthesis technology while outlining future research directions for nanostructured barium titanate.
{"title":"The latest progress of nanostructured barium titanate crystal materials: Industrial synthesis, modification and application","authors":"Wenjin Zhang, Shuzhong Wang, Hui Liu, Junan Zhao, Xuetao Deng, Lu Liu, Zicheng Li, Jianqiao Yang","doi":"10.1016/j.jiec.2025.05.045","DOIUrl":"10.1016/j.jiec.2025.05.045","url":null,"abstract":"<div><div>Barium titanate is the most typical lead-free ferroelectric material with a perovskite structure featuring a high dielectric constant. It serves as one of the most representative electronic device materials in the electronics industry. However, existing industrial synthesis methods face challenges such as high energy consumption and suboptimal product performance. Supercritical hydrothermal synthesis, as an emerging technique, has demonstrated promising prospects due to its tunability and efficiency. Nonetheless, its reaction mechanisms and technical bottlenecks still require further investigation. This paper reviews the main industrial synthesis methods for nanostructured barium titanate, with a particular focus on the advantages, reaction mechanisms, and challenges associated with the supercritical hydrothermal method. It further discusses how modification techniques such as element doping, surface functionalization, and composite material fabrication in hydrothermal systems enhance the performance of the material and summarizes its advancements in emerging application fields. Finally, the paper evaluates improvements and commercialization prospects of supercritical hydrothermal synthesis technology while outlining future research directions for nanostructured barium titanate.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"153 ","pages":"Pages 1-31"},"PeriodicalIF":5.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145705548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-22DOI: 10.1016/j.jiec.2025.05.043
Chi-Wen Lin , Yao-Long Fan , Wei-Tzu Huang , Shu-Hui Liu
The co-existence of hydrophilic and hydrophobic volatile organic compounds (VOCs) in industrial environments poses a challenge for bioelectrochemical systems (BES). To enhance the efficacy of BES in treating both hydrophilic and hydrophobic VOCs, this study focused on optimizing the proton exchange membrane (PEM). The diffusion of VOCs through PEMs produced from four types of agricultural wastes demonstrated that PEMs made from walnut husk (WH) and cork biochar provided excellent diffusion of hydrophobic and hydrophilic VOCs, respectively. A composite desirability coefficient of 0.885 for the PEMCork/WH membrane, fabricated by combining walnut husk and cork using the response surface methodology (RSM) under optimized fabrication conditions, indicated that PEMs with low oxygen diffusivity, high proton transfer rates, and excellent electrical conductivity were successfully developed in this study. BES using PEMCork/WH demonstrated an impressively high VOC removal efficiency, eliminating 98.7 % and 71.4 % of gaseous acetone and toluene, respectively. Compared with PEMs made from conductive carbon black (PEMCCB), BES using PEMCork/WH reduced the total internal resistance, boosting the voltage output and power density by 1.37 and 2.28 times, respectively. The PEMCork/WH developed in this study significantly improves the performance of BES in treating hydrophilic and hydrophobic VOCs and can potentially promote renewable energy applications.
{"title":"Gaseous hydrophilic/hydrophobic volatile organic compound removal and power production by bioelectrochemical systems comprising agro-waste-based biochar-optimized proton exchange membranes","authors":"Chi-Wen Lin , Yao-Long Fan , Wei-Tzu Huang , Shu-Hui Liu","doi":"10.1016/j.jiec.2025.05.043","DOIUrl":"10.1016/j.jiec.2025.05.043","url":null,"abstract":"<div><div>The co-existence of hydrophilic and hydrophobic volatile organic compounds (VOCs) in industrial environments poses a challenge for bioelectrochemical systems (BES). To enhance the efficacy of BES in treating both hydrophilic and hydrophobic VOCs, this study focused on optimizing the proton exchange membrane (PEM). The diffusion of VOCs through PEMs produced from four types of agricultural wastes demonstrated that PEMs made from walnut husk (WH) and cork biochar provided excellent diffusion of hydrophobic and hydrophilic VOCs, respectively. A composite desirability coefficient of 0.885 for the PEM<sub>Cork/WH</sub> membrane, fabricated by combining walnut husk and cork using the response surface methodology (RSM) under optimized fabrication conditions, indicated that PEMs with low oxygen diffusivity, high proton transfer rates, and excellent electrical conductivity were successfully developed in this study. BES using PEM<sub>Cork/WH</sub> demonstrated an impressively high VOC removal efficiency, eliminating 98.7 % and 71.4 % of gaseous acetone and toluene, respectively. Compared with PEMs made from conductive carbon black (PEM<sub>CCB</sub>), BES using PEM<sub>Cork/WH</sub> reduced the total internal resistance, boosting the voltage output and power density by 1.37 and 2.28 times, respectively. The PEM<sub>Cork/WH</sub> developed in this study significantly improves the performance of BES in treating hydrophilic and hydrophobic VOCs and can potentially promote renewable energy applications.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 741-752"},"PeriodicalIF":5.9,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145278277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-21DOI: 10.1016/j.jiec.2025.05.041
Muliani Mansor , Khairunnisa Mohd Paad , Azran Mohd Zainoodin , Nurfatehah Wahyuny Che Jusoh , Shinya Yamanaka , Wuled Lenggoro
The nanostructure-engineering of catalyst layers signifies a fundamental technology in the fabrication of membrane electrode assemblies (MEAs) for polymer electrolyte membrane fuel cells (PEMFCs). Firstly, the design and working principles of MEAs for PEMFCs are elaborated briefly. Specifically, the porous media, membrane, and catalyst layer (CL) are further explained in the literature to understand the principal functions of MEAs. This review paper describes and summarizes the progress and developments of CL coating techniques, with an emphasis on their impact on transport properties and overall cell performance. The transport of protons, electrons, reagents, and products is heavily influenced by the process parameters adopted during the preparation of CLs. This work aims to facilitate process selection through evaluation of a variety of coating techniques for alternative power sources of PEMFCs. Lastly, this paper highlights that future progress will be facilitated by an understanding of how coating techniques have evolved in response to challenges and how they can be further developed to reach high PEMFC performance through fabrication CL to pave way for commercialization. The results of this work demonstrate that during the CL coating process, catalyst ink dispersion, platinum (Pt) usage, and agglomeration of catalyst particles must be carefully addressed. These findings can be useful for both academic and industrial researchers to ensure high-quality control in electrode fabrication.
{"title":"Progress of catalyst layer coating techniques for polymer electrolyte membrane fuel cell performance: A review","authors":"Muliani Mansor , Khairunnisa Mohd Paad , Azran Mohd Zainoodin , Nurfatehah Wahyuny Che Jusoh , Shinya Yamanaka , Wuled Lenggoro","doi":"10.1016/j.jiec.2025.05.041","DOIUrl":"10.1016/j.jiec.2025.05.041","url":null,"abstract":"<div><div>The nanostructure-engineering of catalyst layers signifies a fundamental technology in the fabrication of membrane electrode assemblies (MEAs) for polymer electrolyte membrane fuel cells (PEMFCs). Firstly, the design and working principles of MEAs for PEMFCs are elaborated briefly. Specifically, the porous media, membrane, and catalyst layer (CL) are further explained in the literature to understand the principal functions of MEAs. This review paper describes and summarizes the progress and developments of CL coating techniques, with an emphasis on their impact on transport properties and overall cell performance. The transport of protons, electrons, reagents, and products is heavily influenced by the process parameters adopted during the preparation of CLs. This work aims to facilitate process selection through evaluation of a variety of coating techniques for alternative power sources of PEMFCs. Lastly, this paper highlights that future progress will be facilitated by an understanding of how coating techniques have evolved in response to challenges and how they can be further developed to reach high PEMFC performance through fabrication CL to pave way for commercialization. The results of this work demonstrate that during the CL coating process, catalyst ink dispersion, platinum (Pt) usage, and agglomeration of catalyst particles must be carefully addressed. These findings can be useful for both academic and industrial researchers to ensure high-quality control in electrode fabrication.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 102-123"},"PeriodicalIF":5.9,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145277830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
CsPbBr3, an all-inorganic halide perovskite, has garnered attention as a highly promising material for advanced photocatalysis due to its exceptional optoelectronic properties, including photoluminescence quantum yields, high absorption coefficients, and outstanding charge carrier mobility. Notably, compared to organic–inorganic hybrids, CsPbBr3 exhibits enhanced photocatalytic applications. The innovations of this review lie in its comprehensive analysis of recent breakthroughs in heterojunction engineering, especially on the novel S-scheme heterojunction tailored to boost charge separation and redox ability in CsPbBr3 materials. The material’s performance has been further strengthened by recent developments in bandgap engineering, surface defects, and heterojunction formation, enhancing photocatalytic applications.
In this review, the structural properties, synthesis techniques, and optimization strategies for CsPbBr3 photocatalytic materials are examined. Further, particular attention was paid to doping, surface defects, type-II, Z-scheme, and S-scheme heterojunctions. Also, different photocatalytic applications, like pollutant degradation, H2 evolution, and CO2 reduction, are the main objectives. Emphasis is placed on advanced characterization techniques and performance benchmarks to support the material formation, charge migration, and applications. Finally, the review highlights the challenges and prospects of CsPbBr3-based photocatalysts for environmental applications, aiming to achieve high catalytic efficiency. It offers valuable insights into the use of CsPbBr3-based catalysts in photocatalysis applications.
{"title":"An overview on novel CsPbBr3-based perovskite photocatalyst for environmental and energy applications: Synthesis and enhancement strategy","authors":"Rubeena Chauhan , Shabnam Sambyal , Rohit Kumar , Pankaj Raizada , Aftab Aslam Parwaz Khan , Rangabhashiyam Selvasembian , Tansir Ahamad , Chaudhery Mustansar Hussain , Pardeep Singh","doi":"10.1016/j.jiec.2025.05.047","DOIUrl":"10.1016/j.jiec.2025.05.047","url":null,"abstract":"<div><div>CsPbBr<sub>3</sub>, an all-inorganic halide perovskite, has garnered attention as a highly promising material for advanced photocatalysis due to its exceptional optoelectronic properties, including photoluminescence quantum yields, high absorption coefficients, and outstanding charge carrier mobility. Notably, compared to organic–inorganic hybrids, CsPbBr<sub>3</sub> exhibits enhanced photocatalytic applications. The innovations of this review lie in its comprehensive analysis of recent breakthroughs in heterojunction engineering, especially on the novel S-scheme heterojunction tailored to boost charge separation and redox ability in CsPbBr<sub>3</sub> materials. The material’s performance has been further strengthened by recent developments in bandgap engineering, surface defects, and heterojunction formation, enhancing photocatalytic applications.</div><div>In this review, the structural properties, synthesis techniques, and optimization strategies for CsPbBr<sub>3</sub> photocatalytic materials are examined. Further, particular attention was paid to doping, surface defects, type-II, Z-scheme, and S-scheme heterojunctions. Also, different photocatalytic applications, like pollutant degradation, H<sub>2</sub> evolution, and CO<sub>2</sub> reduction, are the main objectives. Emphasis is placed on advanced characterization techniques and performance benchmarks to support the material formation, charge migration, and applications. Finally, the review highlights the challenges and prospects of CsPbBr<sub>3</sub>-based photocatalysts for environmental applications, aiming to achieve high catalytic efficiency. It offers valuable insights into the use of CsPbBr<sub>3</sub>-based catalysts in photocatalysis applications.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"153 ","pages":"Pages 32-57"},"PeriodicalIF":5.9,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145705550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-20DOI: 10.1016/j.jiec.2025.05.042
Xiao-xiao Qi , Yun-rui Zhao , Hui Shi , Chengtian Cui , Yongxiang Gao , Heqin Guo , Jihai Tang , Mifen Cui , Xu Qiao , Ming Xia
The one-step methanol oxidation to dimethoxymethane (DMM) is a promising method for value-added chemical synthesis. However, vanadium cerium (VCe) catalysts commonly exhibit insufficient DMM selectivity in spite of its moderate high-temperature methanol conversion. In this work, titanium dioxide (TiO2) with relatively strong acidity was introduced into VCe catalyst to improve the catalysis performance of VCe. The results showed that the addition of TiO2 enhanced the oxidation reduction and surface acidity of the catalyst, and effectively improved the selectivity and yield of DMM. Furthermore, a scaled-up conceptual process for the one-step oxidation of methanol to DMM was explored, designed and economically evaluated based on the TiO2 modified catalysts. The entire conceptual process featured that multiple condensation-separation/absorption units offered a complete collection of the DMM. Through the optimization of the process, the generated products and unreacted methanol can be directly stripped from N2 and O2, and complete separation of DMM-methanol azeotrope was achieved with only one vacuum distillation unit. The entire process at what catalysis performance (methanol conversion, DMM selectivity, etc.) could bring profit was revealed and discussed. This study emphasizes the interaction between catalyst design, conceptual process design and economic evaluation, providing new ideas for the development of efficient industrial catalysts.
{"title":"One-step catalytic oxidation of methanol to Dimethoxymethane: The effect of titanium dioxide on catalysis Performance, process conceptual design and evaluation","authors":"Xiao-xiao Qi , Yun-rui Zhao , Hui Shi , Chengtian Cui , Yongxiang Gao , Heqin Guo , Jihai Tang , Mifen Cui , Xu Qiao , Ming Xia","doi":"10.1016/j.jiec.2025.05.042","DOIUrl":"10.1016/j.jiec.2025.05.042","url":null,"abstract":"<div><div>The one-step methanol oxidation to dimethoxymethane (DMM) is a promising method for value-added chemical synthesis. However, vanadium cerium (VCe) catalysts commonly exhibit insufficient DMM selectivity in spite of its moderate high-temperature methanol conversion. In this work, titanium dioxide (TiO<sub>2</sub>) with relatively strong acidity was introduced into VCe catalyst to improve the catalysis performance of VCe. The results showed that the addition of TiO<sub>2</sub> enhanced the oxidation reduction and surface acidity of the catalyst, and effectively improved the selectivity and yield of DMM. Furthermore, a scaled-up conceptual process for the one-step oxidation of methanol to DMM was explored, designed and economically evaluated based on the TiO<sub>2</sub> modified catalysts. The entire conceptual process featured that multiple condensation-separation/absorption units offered a complete collection of the DMM. Through the optimization of the process, the generated products and unreacted methanol can be directly stripped from N<sub>2</sub> and O<sub>2</sub>, and complete separation of DMM-methanol azeotrope was achieved with only one vacuum distillation unit. The entire process at what catalysis performance (methanol conversion, DMM selectivity, etc.) could bring profit was revealed and discussed. This study emphasizes the interaction between catalyst design, conceptual process design and economic evaluation, providing new ideas for the development of efficient industrial catalysts.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 732-740"},"PeriodicalIF":5.9,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145278278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-19DOI: 10.1016/j.jiec.2025.05.039
Xiao Liu , Jie Fan , Kaibo Cui , Ningbo Song , Liqing Sun
Red mud is difficult to be used directly in building material due to its strong alkalinity, especially the free-alkali. Recent studies have found that roasting can effectively solidify the free-alkali in red mud. However, the alkali-solidification kinetics of red mud have not been studied. In this paper, thermal analysis and isothermal kinetics of alkali-solidification process of red mud by roasting were systematically investigated. The results showed that high temperatures above 800 ℃ were conducive to improving the reaction rate of alkali-solidification. The most probable mechanism function was the D6 model in diffusion models, which indicated that three-dimensional diffusion was the limiting link of the alkali-solidification process. According to the determined mechanism function, the corresponding preexponential factor A was calculated to be 19.36 min−1, the apparent activation energy Ea was 97.62 kJ·mol−1. Meanwhile, SEM-EDS analyses verified the alkali-solidification mechanism. This research provides important insight into the efficient solidification of free-alkali in red mud.
{"title":"Analysis of solidification behavior and roasting isothermal kinetics of free-alkali in Bayer red mud","authors":"Xiao Liu , Jie Fan , Kaibo Cui , Ningbo Song , Liqing Sun","doi":"10.1016/j.jiec.2025.05.039","DOIUrl":"10.1016/j.jiec.2025.05.039","url":null,"abstract":"<div><div><span>Red mud is difficult to be used directly in building material<span> due to its strong alkalinity, especially the free-alkali. Recent studies have found that roasting can effectively solidify the free-alkali in red mud. However, the alkali-solidification kinetics of red mud have not been studied. In this paper, thermal analysis and isothermal kinetics of alkali-solidification process of red mud by roasting were systematically investigated. The results showed that high temperatures above 800 ℃ were conducive to improving the reaction rate of alkali-solidification. The most probable mechanism function was the D</span></span><sub>6</sub><span> model in diffusion models, which indicated that three-dimensional diffusion was the limiting link of the alkali-solidification process. According to the determined mechanism function, the corresponding preexponential factor A was calculated to be 19.36 min</span><sup>−1</sup><span>, the apparent activation energy E</span><sub>a</sub> was 97.62 kJ·mol<sup>−1</sup>. Meanwhile, SEM-EDS analyses verified the alkali-solidification mechanism. This research provides important insight into the efficient solidification of free-alkali in red mud.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 709-718"},"PeriodicalIF":5.9,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145278275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-19DOI: 10.1016/j.jiec.2025.05.037
Zhikai Wang , Ba Tung Pham , Xiaoli Wang , Tung-Chai Ling
This study investigates the synergistic effects of integrating CO2-impregnated 13X zeolite into cement pastes blended with 70 % basic oxygen furnace slag (BOFS). Replacing 10–20 wt% of BOFS with either the as-received or CO2-impregnated zeolite, enabled a systematic investigation into the mechanisms affecting both fresh and hardened properties. The results revealed that the as-received zeolite initiated early-stage pozzolanic reactions, reducing flowability by 1–5 % and shortening setting times by 23–72 %, while enhancing compressive strength at 1–3 days by 35–123 %. However, at later stages (7–28 days), the fragile interfacial transition zone (ITZ) between zeolite and the BOFS-OPC hardened pastes, coupled with the inherently low strength of zeolite, resulted in a 5–16 % reduction in compressive strength. The incorporation of CO2-impregnated zeolite triggered internal carbonation, decreasing the availability of Ca(OH)2 from BOFS and forming CaCO3 that initially inhibited pozzolanic activity. This led to a 34 % reduction in flowability and lower early strength compared to as-received zeolite pastes. At later stages, CaCO3 densified the matrix, improving interfacial bonding and compensating for zeolite’s inherent weaknesses, ultimately improving strength. The 20 wt% CO2-impregnated zeolite blend demonstrated the optimal performance, balancing early strength enhancement with long-term performance due to the strength-enhancing effect of CaCO3.
{"title":"Understanding the synergistic effects of CO2-impregnated zeolite in cement pastes blended with 70% BOFS","authors":"Zhikai Wang , Ba Tung Pham , Xiaoli Wang , Tung-Chai Ling","doi":"10.1016/j.jiec.2025.05.037","DOIUrl":"10.1016/j.jiec.2025.05.037","url":null,"abstract":"<div><div><span>This study investigates the synergistic effects of integrating CO</span><sub>2</sub><span><span>-impregnated 13X zeolite into </span>cement pastes<span> blended with 70 % basic oxygen furnace slag (BOFS). Replacing 10–20 wt% of BOFS with either the as-received or CO</span></span><sub>2</sub><span><span>-impregnated zeolite, enabled a systematic investigation into the mechanisms affecting both fresh and hardened properties. The results revealed that the as-received zeolite initiated early-stage pozzolanic reactions<span><span>, reducing flowability by 1–5 % and shortening setting times by 23–72 %, while enhancing </span>compressive strength at 1–3 days by 35–123 %. However, at later stages (7–28 days), the fragile </span></span>interfacial transition zone<span> (ITZ) between zeolite and the BOFS-OPC hardened pastes, coupled with the inherently low strength<span> of zeolite, resulted in a 5–16 % reduction in compressive strength. The incorporation of CO</span></span></span><sub>2</sub><span>-impregnated zeolite triggered internal carbonation, decreasing the availability of Ca(OH)</span><sub>2</sub> from BOFS and forming CaCO<sub>3</sub><span> that initially inhibited pozzolanic activity. This led to a 34 % reduction in flowability and lower early strength compared to as-received zeolite pastes. At later stages, CaCO</span><sub>3</sub><span> densified the matrix, improving interfacial bonding and compensating for zeolite’s inherent weaknesses, ultimately improving strength. The 20 wt% CO</span><sub>2</sub><span>-impregnated zeolite blend demonstrated the optimal performance, balancing early strength enhancement with long-term performance due to the strength-enhancing effect of CaCO</span><sub>3</sub>.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 684-696"},"PeriodicalIF":5.9,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145278383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-19DOI: 10.1016/j.jiec.2025.05.027
Sakib Tanvir Hossain , M.A. Parvez Mahmud
As global energy demand gradually increases due to environmental concerns, hydrogen production integrated with a carbon capture system has emerged as a highly anticipated solution in the sustainable energy field. This study primarily focuses on the viability of a carbon capture and storage (CCS) system utilizing monoethanolamine (MEA) as the solvent from the flue gas which was previously derived from hydrogen (H2) production from waste plastics through a three-phase process involving pyrolysis, steam methane reforming (SMR) and the water–gas shift reaction. The entire system has been modelled through extensive simulations in Aspen Plus software and successfully validated using pilot plant data. As a result, the feasibility of CO2 capture has been successfully investigated throughout the procedure. Moreover, by optimising the process, the system has achieved carbon dioxide (CO2) capture efficiencies of up to 99.4 % with an optimal lean flow rate of approximately 400 kg/h, while the peak CO2 loading has reached around 3.4723 in the rich outstream. Modifications to the packed height and diameter of the absorber and stripper units have also significantly enhanced process efficiency and optimized energy consumption. These advancements have highlighted the potential for substantial improvements in CO2 capture technologies and underscored the critical role of simulation tools in advancing environmentally sustainable hydrogen production.
{"title":"Feasibility of CO2 capture by MEA solvent in blue hydrogen production from waste plastics","authors":"Sakib Tanvir Hossain , M.A. Parvez Mahmud","doi":"10.1016/j.jiec.2025.05.027","DOIUrl":"10.1016/j.jiec.2025.05.027","url":null,"abstract":"<div><div><span>As global energy demand gradually increases due to environmental concerns, hydrogen production<span> integrated with a carbon capture system has emerged as a highly anticipated solution in the sustainable energy field. This study primarily focuses on the viability of a carbon capture and storage (CCS) system utilizing monoethanolamine (MEA) as the solvent from the flue gas which was previously derived from hydrogen (H</span></span><sub>2</sub><span>) production from waste plastics through a three-phase process involving pyrolysis<span>, steam methane reforming (SMR) and the water–gas shift reaction. The entire system has been modelled through extensive simulations in Aspen Plus software and successfully validated using pilot plant data. As a result, the feasibility of CO</span></span><sub>2</sub><span> capture has been successfully investigated throughout the procedure. Moreover, by optimising the process, the system has achieved carbon dioxide (CO</span><sub>2</sub>) capture efficiencies of up to 99.4 % with an optimal lean flow rate of approximately 400 kg/h, while the peak CO<sub>2</sub> loading has reached around 3.4723 in the rich outstream. Modifications to the packed height and diameter of the absorber and stripper units have also significantly enhanced process efficiency and optimized energy consumption. These advancements have highlighted the potential for substantial improvements in CO<sub>2</sub><span> capture technologies and underscored the critical role of simulation tools in advancing environmentally sustainable hydrogen production.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 602-613"},"PeriodicalIF":5.9,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145278280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-05-18DOI: 10.1016/j.jiec.2025.05.026
Han Zhou , Zili Chen , Qiang Zhang, Yunren Qiu
This study proposes a novel approach for removing potentially toxic metal contaminants from industrial electroplating effluents using a rotating disk ultrafiltration membrane (RDM) with copolymer of maleic acid and acrylic acid (PMA) as the complexing agent. The effects of pH and P/M (mass ratio of PMA to metal ions) on metal rejection were investigated, achieving an optimal removal rate of 98 % at pH 6.0 and P/M 8. The shear-induced orderly dissociation-ultrafiltration (SIOD-UF) process was employed to selectively separate Zn(II), Cr(III), Ni(II), and Cu(II), with separation coefficients of βZn/Cr = 95.5, βCr/Ni = 42.0, and βNi/Cu = 47.3. Computational fluid dynamics (CFD) analysis was utilized to determine shear rate distribution, and the critical shear rates (γc) of PMA-metal complexes were calculated as 1.14 × 105, 1.48 × 105, 2.07 × 105, and 1.21 × 104 s−1 for PMA-Cr, PMA-Ni, PMA-Cu, and PMA-Zn, respectively. In the final stage, Cu(II) was separated simultaneously with the regeneration of PMA. SIOD-UF is an efficient and selective metal separation method, free of additional acid or alkali consumption, providing a promising green solution for industrial wastewater treatment.
{"title":"Selective separation of potentially toxic elements from simulated nickel-plating wastewater using rotating disk ultrafiltration membrane","authors":"Han Zhou , Zili Chen , Qiang Zhang, Yunren Qiu","doi":"10.1016/j.jiec.2025.05.026","DOIUrl":"10.1016/j.jiec.2025.05.026","url":null,"abstract":"<div><div><span>This study proposes a novel approach for removing potentially toxic metal contaminants from industrial electroplating effluents using a rotating disk ultrafiltration<span> membrane (RDM) with copolymer<span><span> of maleic acid and acrylic acid (PMA) as the </span>complexing agent. The effects of pH and P/M (mass ratio of PMA to metal ions) on metal rejection were investigated, achieving an optimal removal rate of 98 % at pH 6.0 and P/M 8. The shear-induced orderly dissociation-ultrafiltration (SIOD-UF) process was employed to selectively separate Zn(II), Cr(III), Ni(II), and Cu(II), with separation coefficients of </span></span></span><em>β</em><sub>Zn/Cr</sub> = 95.5, <em>β</em><sub>Cr/Ni</sub> = 42.0, and <em>β</em><sub>Ni/Cu</sub><span> = 47.3. Computational fluid dynamics (CFD) analysis was utilized to determine shear rate distribution, and the critical shear rates (γc) of PMA-metal complexes were calculated as 1.14 × 10</span><sup>5</sup>, 1.48 × 10<sup>5</sup>, 2.07 × 10<sup>5</sup>, and 1.21 × 10<sup>4</sup> s<sup>−1</sup><span> for PMA-Cr, PMA-Ni, PMA-Cu, and PMA-Zn, respectively. In the final stage, Cu(II) was separated simultaneously with the regeneration of PMA. SIOD-UF is an efficient and selective metal separation method, free of additional acid or alkali consumption, providing a promising green solution for industrial wastewater treatment.</span></div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"152 ","pages":"Pages 589-601"},"PeriodicalIF":5.9,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145278282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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