Sulfadiazine (SDZ) is an antibiotic frequently detected in natural water environments and wastewater treatment systems. Its accumulation and residue in aquatic seriously impact ecosystems and human health. (PK) is an invasive species that seriously impacts the production of agriculture, forestry, and animal husbandry due to its strong adaptability and fast diffusion speed. In order to transform exotic noxious weeds into valuable resources, biochar (PKBC) was prepared by pyrolyzing the stems of PK at 500 °C to adsorb SDZ effectively. The results demonstrated that the biochar material exhibited a plate-like morphology with a large specific surface area, which provided numerous adsorption sites and was conducive to SDZ adsorption. The pH value significantly affects the adsorption of SDZ on PKBC-500, with better adsorption performance in acidic environments. The adsorption capacity of PKBC for SDZ was determined to be 6.87 mg/L. The adsorption kinetics and isotherms were analyzed, and the pseudo-second-order kinetic better fitted the adsorption process of SDZ. The Freundlich equation was more appropriate for explaining the adsorption process. In summary, biochar adsorption of antibiotics was prepared using PK pyrolysis. Its raw material is inexpensive and can effectively adsorb SDZ while solving the problem of invasive plant management.
{"title":"Adsorption of sulfadiazine from water by Pedicularis kansuensis derived biochar: Preparation and properties studies","authors":"Guohao Zhai, Yuxuan Ma, Huixian Liu, Hongtao Jia, Shanshan Wang, Shuai Liu","doi":"10.1016/j.jiec.2024.09.007","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.09.007","url":null,"abstract":"Sulfadiazine (SDZ) is an antibiotic frequently detected in natural water environments and wastewater treatment systems. Its accumulation and residue in aquatic seriously impact ecosystems and human health. (PK) is an invasive species that seriously impacts the production of agriculture, forestry, and animal husbandry due to its strong adaptability and fast diffusion speed. In order to transform exotic noxious weeds into valuable resources, biochar (PKBC) was prepared by pyrolyzing the stems of PK at 500 °C to adsorb SDZ effectively. The results demonstrated that the biochar material exhibited a plate-like morphology with a large specific surface area, which provided numerous adsorption sites and was conducive to SDZ adsorption. The pH value significantly affects the adsorption of SDZ on PKBC-500, with better adsorption performance in acidic environments. The adsorption capacity of PKBC for SDZ was determined to be 6.87 mg/L. The adsorption kinetics and isotherms were analyzed, and the pseudo-second-order kinetic better fitted the adsorption process of SDZ. The Freundlich equation was more appropriate for explaining the adsorption process. In summary, biochar adsorption of antibiotics was prepared using PK pyrolysis. Its raw material is inexpensive and can effectively adsorb SDZ while solving the problem of invasive plant management.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211176","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 : 2024-09-03DOI: 10.1016/j.jiec.2024.09.003
Noelia González-Ballesteros, Pedro M. Martins, Carlos J. Tavares, Senentxu Lanceros-Méndez
Contaminated water is one of the world’s largest health and environmental problem. Emerging pollutants, such as pharmaceutics, are raising increasing concerns, as they are non-regulated toxic chemicals found in low concentrations that are very resilient to conventional water treatments. In the search for effective methods to address this problem, photocatalysis arises as a possible solution to degrade organic pollutants. TiO is one of the most widely used catalysts, but the reduced photoactivation under visible radiation constitutes a major drawback. The inclusion of plasmonic nanoparticles, such as gold (AuNPs), can improve the ability to absorb visible radiation from sunlight. AuNPs synthesis methods include toxic and expensive reagents. Herein, an alternative method is proposed, using the flavonoid quercetin to act as the reducing agent in the deposition of AuNPs on the surface of TiO (Au/TiO). The method is optimised, and different loadings of gold are tested. The characterisation of Au/TiO confirms increased absorption in the visible wavelength range with increasing concentrations of gold as well as a reduction in the energy band gap. The photocatalytic efficiency of Au/TiO was evaluated for the degradation of the antibiotic ciprofloxacin under UV and simulated sunlight irradiation, obtaining a maximum degradation of 86 and 95%, respectively.
{"title":"Quercetin-mediated green synthesis of Au/TiO2 nanocomposites for the photocatalytic degradation of antibiotic ciprofloxacin","authors":"Noelia González-Ballesteros, Pedro M. Martins, Carlos J. Tavares, Senentxu Lanceros-Méndez","doi":"10.1016/j.jiec.2024.09.003","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.09.003","url":null,"abstract":"Contaminated water is one of the world’s largest health and environmental problem. Emerging pollutants, such as pharmaceutics, are raising increasing concerns, as they are non-regulated toxic chemicals found in low concentrations that are very resilient to conventional water treatments. In the search for effective methods to address this problem, photocatalysis arises as a possible solution to degrade organic pollutants. TiO is one of the most widely used catalysts, but the reduced photoactivation under visible radiation constitutes a major drawback. The inclusion of plasmonic nanoparticles, such as gold (AuNPs), can improve the ability to absorb visible radiation from sunlight. AuNPs synthesis methods include toxic and expensive reagents. Herein, an alternative method is proposed, using the flavonoid quercetin to act as the reducing agent in the deposition of AuNPs on the surface of TiO (Au/TiO). The method is optimised, and different loadings of gold are tested. The characterisation of Au/TiO confirms increased absorption in the visible wavelength range with increasing concentrations of gold as well as a reduction in the energy band gap. The photocatalytic efficiency of Au/TiO was evaluated for the degradation of the antibiotic ciprofloxacin under UV and simulated sunlight irradiation, obtaining a maximum degradation of 86 and 95%, respectively.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254160","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 : 2024-09-03DOI: 10.1016/j.jiec.2024.09.002
Yu Hu, Hongtao Gao, Yuying Yan
The multi-scale hybrid surface can significantly enhance the boiling heat transfer efficiency. This review aims to provide an overview of the boiling heat transfer process, research developments, and potential applications of multi-scale hybrid surfaces. It has been discovered that the enhanced boiling mechanism on the multi-scale hybrid surface also involves some mixability due to a combination of different scale structures. A comprehensive analysis of the boiling process is essential for the numerical evaluation of the hybrid surface, considering the fluid parameters and operational conditions. The expressions related to bubble dynamics necessitate consideration of the shape and size of the cavity, wettability, heat flux, and system pressures. The characteristics of the preparation process should be considered when marking the hybrid surface. The application of multi-scale hybrid surfaces requires consideration of wettability and size range. It is crucial to select adaptable modified surfaces that fulfill the necessary heat transfer requirements when designing and constructing hybrid surfaces.
{"title":"A comprehensive review of boiling heat transfer on multi-scale hybrid surfaces and applications","authors":"Yu Hu, Hongtao Gao, Yuying Yan","doi":"10.1016/j.jiec.2024.09.002","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.09.002","url":null,"abstract":"The multi-scale hybrid surface can significantly enhance the boiling heat transfer efficiency. This review aims to provide an overview of the boiling heat transfer process, research developments, and potential applications of multi-scale hybrid surfaces. It has been discovered that the enhanced boiling mechanism on the multi-scale hybrid surface also involves some mixability due to a combination of different scale structures. A comprehensive analysis of the boiling process is essential for the numerical evaluation of the hybrid surface, considering the fluid parameters and operational conditions. The expressions related to bubble dynamics necessitate consideration of the shape and size of the cavity, wettability, heat flux, and system pressures. The characteristics of the preparation process should be considered when marking the hybrid surface. The application of multi-scale hybrid surfaces requires consideration of wettability and size range. It is crucial to select adaptable modified surfaces that fulfill the necessary heat transfer requirements when designing and constructing hybrid surfaces.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211177","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 : 2024-09-01DOI: 10.1016/j.jiec.2024.08.057
Xin Zhao, Yutong Wang, Zhaohui Zhang, Jiaxiang Liu, Yunfang Liu
In this paper, a method for the simultaneous detection and degradation of tetracycline antibiotics (TCs) in water was investigated. Calcium silicate hydrate (CSH), FeO and calcium aluminate hydrate (CAH) were isolated from steel slag as carriers for Pt monomers. The produced Pt-modified modified steel slag (ALANH-Pt) possessed both peroxidase activity and photocatalytic properties. As a result, a sensitive and selective colorimetric sensor was exploited on the basis of ALANH-Pt for tetracycline (TC), oxytetracycline (OTC), and doxycycline (DOX), which exhibited a detection limit (LOD) of 1.696 μM, 0.999 μM and 3.607 μM, respectively. In addition, the degradation rate for TCs could be achieved 82 % within 60 min. The possible mechanisms of detection and degradation are discussed based on ESR spectroscopy, revealing the generation of hydroxyl radicals (OH), superoxide radicals (O) and holes (h). The degradation pathway of TC was inferred by HPLC-MS. The selectivity of the colorimetric sensing platform and the application of the bifunctional ALANH-Pt to real water samples were investigated. This work provides a new idea that allows for the simultaneous detection and degradation of TCs, and offers a new approach to the utilization of steel slag.
{"title":"Bifunctional Pt-loaded steel slag matrix composites for the detection and degradation of tetracycline antibiotics","authors":"Xin Zhao, Yutong Wang, Zhaohui Zhang, Jiaxiang Liu, Yunfang Liu","doi":"10.1016/j.jiec.2024.08.057","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.057","url":null,"abstract":"In this paper, a method for the simultaneous detection and degradation of tetracycline antibiotics (TCs) in water was investigated. Calcium silicate hydrate (CSH), FeO and calcium aluminate hydrate (CAH) were isolated from steel slag as carriers for Pt monomers. The produced Pt-modified modified steel slag (ALANH-Pt) possessed both peroxidase activity and photocatalytic properties. As a result, a sensitive and selective colorimetric sensor was exploited on the basis of ALANH-Pt for tetracycline (TC), oxytetracycline (OTC), and doxycycline (DOX), which exhibited a detection limit (LOD) of 1.696 μM, 0.999 μM and 3.607 μM, respectively. In addition, the degradation rate for TCs could be achieved 82 % within 60 min. The possible mechanisms of detection and degradation are discussed based on ESR spectroscopy, revealing the generation of hydroxyl radicals (OH), superoxide radicals (O) and holes (h). The degradation pathway of TC was inferred by HPLC-MS. The selectivity of the colorimetric sensing platform and the application of the bifunctional ALANH-Pt to real water samples were investigated. This work provides a new idea that allows for the simultaneous detection and degradation of TCs, and offers a new approach to the utilization of steel slag.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211200","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 : 2024-08-30DOI: 10.1016/j.jiec.2024.08.052
Fatemeh Delkhosh, Armaghan Qotbi, Amir Hossein Behroozi, Vahid Vatanpour
Magnetron-sputtered membranes have been an interesting candidate for water and gas treatment applications because of their controllable thickness, chemical compositions, crystalline structure, and other surface properties. Using magnetron sputtering (MS) as a reproducible and scalable deposition technique, membranes can be directed fabricated or modified through deposition of a thin layer on a support layer. The fundamental concepts, detailed processing mechanism, and various types of this technique are first outlined. Then, the applications of this technique in depositing thin films, mainly originating from polymers, metal(loid)s, oxides, and carbon, on membrane supports are briefly discussed. The next focus is on recent progress in this field by reporting the performance of MS-based developed membranes in both water and gas treatment processes, which provides a comparative study in terms of filtration efficiency. Finally, the current challenges and future directions are briefly provided for the development of next-generation magnetron-sputtered membranes.
磁控溅射膜因其可控的厚度、化学成分、结晶结构和其他表面特性，一直是水和气体处理应用中令人感兴趣的候选材料。磁控溅射（MS）是一种可重复、可扩展的沉积技术，通过在支撑层上沉积薄层，可以定向制造或改性膜。本文首先概述了该技术的基本概念、详细加工机制和各种类型。然后，简要讨论了该技术在膜支持层上沉积薄膜的应用，这些薄膜主要来自聚合物、金属、氧化物和碳。接下来的重点是该领域的最新进展，报告了基于 MS 技术开发的膜在水和气体处理过程中的性能，提供了过滤效率方面的比较研究。最后，简要介绍了开发下一代磁控溅射膜的当前挑战和未来方向。
{"title":"Magnetron sputtering in membrane fabrication and modification: Applications in gas and water treatment","authors":"Fatemeh Delkhosh, Armaghan Qotbi, Amir Hossein Behroozi, Vahid Vatanpour","doi":"10.1016/j.jiec.2024.08.052","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.052","url":null,"abstract":"Magnetron-sputtered membranes have been an interesting candidate for water and gas treatment applications because of their controllable thickness, chemical compositions, crystalline structure, and other surface properties. Using magnetron sputtering (MS) as a reproducible and scalable deposition technique, membranes can be directed fabricated or modified through deposition of a thin layer on a support layer. The fundamental concepts, detailed processing mechanism, and various types of this technique are first outlined. Then, the applications of this technique in depositing thin films, mainly originating from polymers, metal(loid)s, oxides, and carbon, on membrane supports are briefly discussed. The next focus is on recent progress in this field by reporting the performance of MS-based developed membranes in both water and gas treatment processes, which provides a comparative study in terms of filtration efficiency. Finally, the current challenges and future directions are briefly provided for the development of next-generation magnetron-sputtered membranes.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211201","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 : 2024-08-30DOI: 10.1016/j.jiec.2024.08.051
Zhipeng Guo, Wei Wei, Yihang Li, Jianning Gao, Ruirui Hou, Li Qin, Ang Wei
Photocatalysis technology has been widely studied for treating Cr(VI) pollution in water and constructing heterogeneous structures presents a compelling approach to enhance the efficiency of Cr(VI) treatment. Pitifully, solely utilizing heterostructure, especially random composites of heterogeneous photocatalysts, often falls short of effectively enhancing the separation efficiency of photogenerated carriers. Furthermore, most photocatalysts interact weakly with the Cr(VI) anions, greatly reducing the utilization efficiency of photogenerated carriers. Herein, pyridine-based conjugated imprinted polymer (CIP) photocatalyst was precisely coated on urchin-like TiO using an in-situ condensation approach, forming a compact core–shell structure of organic/inorganic heterojunction. On the one hand, the compact heterojunction structure of the core–shell effectively improved the separation efficiency of photogenerated carriers. On the other hand, CIP enhanced the adsorption between the photocatalyst and Cr(VI), effectively improving the utilization efficiency of photogenerated carriers. Due to the collaborative effects of selective adsorption and core–shell heterojunction photocatalysis, the photocatalyst demonstrated remarkable performance in eliminating Cr(VI). For high concentration Cr(VI) pollution of 100 ppm, complete elimination could be achieved within 90 min. This research presented an innovative and efficient approach for the precise synthesis of photocatalysts.
{"title":"Precisely constructed core-shell organic/inorganic heterojunction for heightened photoreduction of Cr(VI): Synergy of reinforced interface interaction and high-speed carrier transfer","authors":"Zhipeng Guo, Wei Wei, Yihang Li, Jianning Gao, Ruirui Hou, Li Qin, Ang Wei","doi":"10.1016/j.jiec.2024.08.051","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.051","url":null,"abstract":"Photocatalysis technology has been widely studied for treating Cr(VI) pollution in water and constructing heterogeneous structures presents a compelling approach to enhance the efficiency of Cr(VI) treatment. Pitifully, solely utilizing heterostructure, especially random composites of heterogeneous photocatalysts, often falls short of effectively enhancing the separation efficiency of photogenerated carriers. Furthermore, most photocatalysts interact weakly with the Cr(VI) anions, greatly reducing the utilization efficiency of photogenerated carriers. Herein, pyridine-based conjugated imprinted polymer (CIP) photocatalyst was precisely coated on urchin-like TiO using an in-situ condensation approach, forming a compact core–shell structure of organic/inorganic heterojunction. On the one hand, the compact heterojunction structure of the core–shell effectively improved the separation efficiency of photogenerated carriers. On the other hand, CIP enhanced the adsorption between the photocatalyst and Cr(VI), effectively improving the utilization efficiency of photogenerated carriers. Due to the collaborative effects of selective adsorption and core–shell heterojunction photocatalysis, the photocatalyst demonstrated remarkable performance in eliminating Cr(VI). For high concentration Cr(VI) pollution of 100 ppm, complete elimination could be achieved within 90 min. This research presented an innovative and efficient approach for the precise synthesis of photocatalysts.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211197","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 : 2024-08-30DOI: 10.1016/j.jiec.2024.08.046
Myeong Hui Jeong, Jungmin Kim, Dong Wan Ham, Jeongtae Kim, Isheunesu Phiri, Sun-Yul Ryou
Li[NiMnCo]O (NCM) has attracted considerable attention as a cathode material because of its excellent electrochemical performance; however, practical application of NCM is challenging owing to side reactions in the electrolyte and structural changes. In this study, we manufactured NCM electrodes with mixtures of Super-P and vapor-grown carbon fiber (VGCF) as conductive additives at different ratios (Super-P/VGCF=2/8 (S2V8), 5/5 (S5V5), and 8/2 (S8V2)) and investigated the effect of the ratio of the conductive additives on NCM electrode performance. Simply changing the ratio of the conductive additives without modifying the NCM active materials substantially altered the electrochemical performance. Using a Super-P/VGCF mixture at an appropriate ratio (5/5, w/w) forms a conductive network throughout the NCM active materials, improving the electrical conductivity and enabling uniform activation across the range of NCM particles. Consequently, for S5V5, the anisotropic volume changes of the NCM primary particles became uniform, resulting in structural stability of the secondary NCM particles during charging and discharging.
{"title":"Stabilization of Li[NixMnyCo1-x-y]O2 structure using a mixture of Super-P and vapor-grown carbon fiber as conducting additives","authors":"Myeong Hui Jeong, Jungmin Kim, Dong Wan Ham, Jeongtae Kim, Isheunesu Phiri, Sun-Yul Ryou","doi":"10.1016/j.jiec.2024.08.046","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.046","url":null,"abstract":"Li[NiMnCo]O (NCM) has attracted considerable attention as a cathode material because of its excellent electrochemical performance; however, practical application of NCM is challenging owing to side reactions in the electrolyte and structural changes. In this study, we manufactured NCM electrodes with mixtures of Super-P and vapor-grown carbon fiber (VGCF) as conductive additives at different ratios (Super-P/VGCF=2/8 (S2V8), 5/5 (S5V5), and 8/2 (S8V2)) and investigated the effect of the ratio of the conductive additives on NCM electrode performance. Simply changing the ratio of the conductive additives without modifying the NCM active materials substantially altered the electrochemical performance. Using a Super-P/VGCF mixture at an appropriate ratio (5/5, w/w) forms a conductive network throughout the NCM active materials, improving the electrical conductivity and enabling uniform activation across the range of NCM particles. Consequently, for S5V5, the anisotropic volume changes of the NCM primary particles became uniform, resulting in structural stability of the secondary NCM particles during charging and discharging.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211202","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 : 2024-08-30DOI: 10.1016/j.jiec.2024.08.050
Chen Ling, Zhikun Wang, Chaolin Li, Wenhui Wang
Waste sulfuric acid of alkylation (WSAA) poses a challenge in industrial alkylation oil production due to its substantial yield and high treatment costs. This study introduces a novel hydrothermal method that ingeniously couples the treatment of WSAA with the synthesis of high-quality carbon quantum dots (CQDs), offering a cost-effective and controllable approach. Through this method, the particle size and surface functional groups of the resulting CQDs can be precisely regulated. The average particle size tunes from 17.97 nm to 2.42 nm via increasing the hydrothermal temperature, and nitrogen-containing groups can be introduced through adding nitrogen sources during hydrothermal process. The prepared CQDs exhibit notable performance in photocatalysis and heavy metal detection, such as CQDs modified graphite carbon nitride has improved photocatalytic degradation ability and Hg (II) detection ability. Additionally, the environmental impact of the proposed method is substantially minimized, demonstrating a smaller footprint on ecosystems compared to conventional industrial disposal processes. Moreover, the economic cost associated with the method is significantly reduced by approximately 48.4 %, further highlighting its efficiency. Utilizing WSAA as a raw material for CQDs not only facilitates the recycling and sustainable utilization of waste but also enables low-cost production of high-performance carbon materials, presenting a mutually beneficial approach.
{"title":"Eco-friendly and sustainable synthesis of carbon quantum dots from waste sulfuric acid of alkylation","authors":"Chen Ling, Zhikun Wang, Chaolin Li, Wenhui Wang","doi":"10.1016/j.jiec.2024.08.050","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.050","url":null,"abstract":"Waste sulfuric acid of alkylation (WSAA) poses a challenge in industrial alkylation oil production due to its substantial yield and high treatment costs. This study introduces a novel hydrothermal method that ingeniously couples the treatment of WSAA with the synthesis of high-quality carbon quantum dots (CQDs), offering a cost-effective and controllable approach. Through this method, the particle size and surface functional groups of the resulting CQDs can be precisely regulated. The average particle size tunes from 17.97 nm to 2.42 nm via increasing the hydrothermal temperature, and nitrogen-containing groups can be introduced through adding nitrogen sources during hydrothermal process. The prepared CQDs exhibit notable performance in photocatalysis and heavy metal detection, such as CQDs modified graphite carbon nitride has improved photocatalytic degradation ability and Hg (II) detection ability. Additionally, the environmental impact of the proposed method is substantially minimized, demonstrating a smaller footprint on ecosystems compared to conventional industrial disposal processes. Moreover, the economic cost associated with the method is significantly reduced by approximately 48.4 %, further highlighting its efficiency. Utilizing WSAA as a raw material for CQDs not only facilitates the recycling and sustainable utilization of waste but also enables low-cost production of high-performance carbon materials, presenting a mutually beneficial approach.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211205","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 : 2024-08-30DOI: 10.1016/j.jiec.2024.08.047
Kyung Soo Kim, In Woo Lee, Bo Kyoung Kim, Tae-Sung Bae, Young-Seak Lee
SiOx/C electrodes are widely used due to their high lithium storage capacities and cycling stabilities. However, the SiOx/C electrode exhibits large volume expansion and unstable SEI layer formation during cycling. In this work, a carbon tetrafluoride (CF) plasma was used to introduce C-F bonds onto the electrode surface to form a LiF-based SEI layer on a SiOx/C electrode (SGE) to improve its mechanical and electrochemical properties. The fluorinated SiOx/C electrode (FSGE) subjected to the CF plasma treatment for 10 min mitigated 2.5 times the volume expansion compared to the SGE by forming a LiF-based SEI layer to increase the mechanical properties. This mitigation of FSGE volume expansion resulted in excellent long-term cycling stability of 83 % for 100 cycles (1C). In addition, the LiF-based SEI layer formed on the FSGE increased the mobility of Li ions, resulting in 1.2 times better cycle stability than that of SGE at a high rate (10C). Thus, the improvement in the electrochemical performance achieved by reducing the volume expansion of SiOx in the electrode and enhancing the Li-ion conductivity was attributed to the stable LiF SEI layer formed with semi-ionic CF bonds introduced by the CF plasma.
SiOx/C 电极具有很高的锂存储容量和循环稳定性，因此被广泛使用。然而，SiOx/C 电极在循环过程中会出现较大的体积膨胀和不稳定的 SEI 层形成。在这项工作中，使用四氟化碳（CF）等离子体在电极表面引入 C-F 键，在 SiOx/C 电极（SGE）上形成锂基 SEI 层，以改善其机械和电化学性能。氟化 SiOx/C 电极（FSGE）经 CF 等离子处理 10 分钟后，通过形成锂基 SEI 层，体积膨胀比 SGE 减小了 2.5 倍，从而提高了机械性能。减轻了 FSGE 体积膨胀后，100 次循环 (1C) 的长期循环稳定性高达 83%。此外，在 FSGE 上形成的 LiF 基 SEI 层提高了锂离子的迁移率，使其在高循环速率（10C）下的循环稳定性比 SGE 高出 1.2 倍。因此，通过降低电极中 SiOx 的体积膨胀和提高锂离子传导性而实现的电化学性能的改善归功于由 CF 等离子体引入的半离子 CF 键形成的稳定的 LiF SEI 层。
{"title":"Synergistic effect of reducing volume expansion and improving electrochemical performance through a LiF-based SEI formation on SiOx/C electrodes","authors":"Kyung Soo Kim, In Woo Lee, Bo Kyoung Kim, Tae-Sung Bae, Young-Seak Lee","doi":"10.1016/j.jiec.2024.08.047","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.047","url":null,"abstract":"SiOx/C electrodes are widely used due to their high lithium storage capacities and cycling stabilities. However, the SiOx/C electrode exhibits large volume expansion and unstable SEI layer formation during cycling. In this work, a carbon tetrafluoride (CF) plasma was used to introduce C-F bonds onto the electrode surface to form a LiF-based SEI layer on a SiOx/C electrode (SGE) to improve its mechanical and electrochemical properties. The fluorinated SiOx/C electrode (FSGE) subjected to the CF plasma treatment for 10 min mitigated 2.5 times the volume expansion compared to the SGE by forming a LiF-based SEI layer to increase the mechanical properties. This mitigation of FSGE volume expansion resulted in excellent long-term cycling stability of 83 % for 100 cycles (1C). In addition, the LiF-based SEI layer formed on the FSGE increased the mobility of Li ions, resulting in 1.2 times better cycle stability than that of SGE at a high rate (10C). Thus, the improvement in the electrochemical performance achieved by reducing the volume expansion of SiOx in the electrode and enhancing the Li-ion conductivity was attributed to the stable LiF SEI layer formed with semi-ionic CF bonds introduced by the CF plasma.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211199","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 : 2024-08-30DOI: 10.1016/j.jiec.2024.08.044
José Luiz Francisco Alves, Samaira Kraus, Eduardo Carpes Dib, Guilherme Davi Mumbach, Ricardo Antonio Francisco Machado, Cintia Marangoni
This paper proposes an innovative technology for desalinating brackish water and seawater using a multi-tube type falling film distillation column integrated with a biphasic thermosyphon. Based on the literature survey, this proposal has not been previously explored. In this study, the viability of the pilot-scale application of this technology for desalination was tested, and the process performance was evaluated in terms of distillate flow rate, salinity removal, and energy consumption, considering different experimental conditions. Synthetic solutions containing 10.0 and 35.0 g/L of sodium chloride were used to simulate brackish water and seawater salinities, respectively. The thermal desalination pilot plant integrating a compact falling film distillation column and a biphasic thermosyphon demonstrated high effectiveness, consistently producing desalinated water with a conductivity below 10 μS cm. Considering both concentrations, the optimal condition for desalinated water production was a feed temperature of 85 °C, a vapor chamber temperature of 121 °C, and an energy consumption of 16 kW. This new technological option’s energy consumption is approximately 33 % lower than that of a simulated flash distillation column operating under similar conditions. In conclusion, this study presents promising results, establishing falling film distillation technology as a viable alternative for desalinating brackish water and seawater.
{"title":"Pilot-scale testing of a multi-tube type falling film distillation column equipped with a biphasic thermosyphon as a new alternative for the desalination of brackish water and seawater","authors":"José Luiz Francisco Alves, Samaira Kraus, Eduardo Carpes Dib, Guilherme Davi Mumbach, Ricardo Antonio Francisco Machado, Cintia Marangoni","doi":"10.1016/j.jiec.2024.08.044","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.044","url":null,"abstract":"This paper proposes an innovative technology for desalinating brackish water and seawater using a multi-tube type falling film distillation column integrated with a biphasic thermosyphon. Based on the literature survey, this proposal has not been previously explored. In this study, the viability of the pilot-scale application of this technology for desalination was tested, and the process performance was evaluated in terms of distillate flow rate, salinity removal, and energy consumption, considering different experimental conditions. Synthetic solutions containing 10.0 and 35.0 g/L of sodium chloride were used to simulate brackish water and seawater salinities, respectively. The thermal desalination pilot plant integrating a compact falling film distillation column and a biphasic thermosyphon demonstrated high effectiveness, consistently producing desalinated water with a conductivity below 10 μS cm. Considering both concentrations, the optimal condition for desalinated water production was a feed temperature of 85 °C, a vapor chamber temperature of 121 °C, and an energy consumption of 16 kW. This new technological option’s energy consumption is approximately 33 % lower than that of a simulated flash distillation column operating under similar conditions. In conclusion, this study presents promising results, establishing falling film distillation technology as a viable alternative for desalinating brackish water and seawater.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211203","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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