Environmental Functional Materials最新文献_第6页

Persulfate-based advanced oxidation processes: The new hope brought by nanocatalyst immobilization 过硫酸盐基高级氧化工艺:纳米催化剂固定化带来的新希望

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.05.004

Ruonan Guo, B. Xi, Changsheng Guo, Xiuwen Cheng, Ningqing Lv, Wen Liu, A. Borthwick, Jian Xu

引用次数: 23

Perspectives on surface chemistry of nanostructured catalysts for heterogeneous advanced oxidation processes 非均相深度氧化纳米结构催化剂的表面化学研究进展

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.08.003

Dawei Wang , Yingying Li , Yilan Jiang , Xinyang Cai , Xiaxi Yao

引用次数: 10

Single-atom photocatalysts for CO2 reduction: Charge transfer and adsorption-activation mechanism 二氧化碳还原用单原子光催化剂:电荷转移和吸附活化机理

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.08.004

Peng Chen , Wendong Zhang , Yanjuan Sun , Fan Dong

{"title":"Single-atom photocatalysts for CO2 reduction: Charge transfer and adsorption-activation mechanism","authors":"Peng Chen , Wendong Zhang , Yanjuan Sun , Fan Dong","doi":"10.1016/j.efmat.2022.08.004","DOIUrl":"https://doi.org/10.1016/j.efmat.2022.08.004","url":null,"abstract":"<div>Photocatalytic CO2 reduction is mainly inspired by natural photosynthesis, which could convert CO2 into high value-added fuels or chemicals through the role of catalysts. However, the photocatalysis efficiency of the currently developed catalysts is far from meeting the actual needs due to the low efficiency of charge separation and energy transfer, and the poor adsorption and activation of CO2 by catalyst surface. Single-atom catalysts (SACS) show an excellent activity, selectivity and stability in many important reactions, and exhibit great potential in photocatalytic reduction of CO2 owing to their high atomic utilization and controllability of active sites. In the current review, recent progresses and challenges on SACs for photocatalytic CO2 conversion systems are presented. The key fundamental principles and reaction mechanisms focusing on charge separation/transfer and molecular adsorption/activation on single-atom photocatalysts for CO2 reduction are systemically explored. We outlined how single-atom active sites promote the photogenerated carriers separation/transfer and enhance molecular photoactivation. Besides, we put forward some challenges and prospects for the future development of single-atom photocatalysts in CO2 reduction.</div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"1 2","pages":"Pages 127-138"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773058122000266/pdfft?md5=77b9539def242b4af22ad8020c7942bd&pid=1-s2.0-S2773058122000266-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71875316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Developing functional carbon nitride materials for efficient peroxymonosulfate activation: From interface catalysis to irradiation synergy 高效过氧单硫酸盐活化功能氮化碳材料的开发:从界面催化到辐射协同

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.05.007

Huazhe Wang, Banghai Liu, Qishi Si, S. Wacławek, Yaohua Wu, Wenrui Jia, Ting Xie, Wanqian Guo, Nanqi Ren

引用次数: 11

Efficient degradation of toluene over ultra-low Pd supported on UiO-66 and its functional materials: Reaction mechanism, water-resistance, and influence of SO2 UiO-66及其功能材料负载的超低Pd高效降解甲苯:反应机理、耐水性及SO2的影响

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.07.002

Fukun Bi , Zhenyuan Zhao , Yang Yang , Qiang Liu , Wenyuan Huang , Yuandong Huang , Xiaodong Zhang

{"title":"Efficient degradation of toluene over ultra-low Pd supported on UiO-66 and its functional materials: Reaction mechanism, water-resistance, and influence of SO2","authors":"Fukun Bi , Zhenyuan Zhao , Yang Yang , Qiang Liu , Wenyuan Huang , Yuandong Huang , Xiaodong Zhang","doi":"10.1016/j.efmat.2022.07.002","DOIUrl":"https://doi.org/10.1016/j.efmat.2022.07.002","url":null,"abstract":"<div>Herein, Pd supported on UiO-66 as well as its NH2- and NO2-functional materials with ultra-low Pd loadings (0.05 wt%) were synthesized for toluene oxidation. Pd–U, using UiO-66 as the support, exhibited superb catalytic performance, water resistance, and resistance to SO2. A series of experiments and characterizations revealed that a high dispersion of small Pd clusters, high Pd0/Pdtotal proportion, better adsorption for toluene, and the best adsorption and activation capacities of gaseous oxygen species enhanced toluene degradation over Pd–U. Additionally, the catalytic mechanism over the Pd-based catalysts was revealed and discussed. Furthermore, the water-resistance and the SO2 concentration influence were tested and analyzed. Introducing H2O suppressed the adsorption and activation of toluene as well as gaseous oxygen species, and decreased catalytic performance over the three catalysts. The mechanism of the different impacts of SO2 on the three catalysts was investigated and elucidated. This study provides guidance for rationally designing catalysts for removing toluene under in-field operating conditions.</div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"1 2","pages":"Pages 166-181"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773058122000217/pdfft?md5=bf45b5b0990bbb95c2e9bad67695032c&pid=1-s2.0-S2773058122000217-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71875315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 49

Metal-free activation of peroxymonosulfate by boron and nitrogen co-doped graphene nanotubes for catalytic oxidation of 4-hydroxybenzoic acid 硼氮共掺杂石墨烯纳米管催化氧化4-羟基苯甲酸的无金属活化研究

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.08.005

Hong Wu , Abdul Hannan Asif , Lei Shi , Rajan Arjan Kalyan Hirani , Nasir Rafique , Hongqi Sun

{"title":"Metal-free activation of peroxymonosulfate by boron and nitrogen co-doped graphene nanotubes for catalytic oxidation of 4-hydroxybenzoic acid","authors":"Hong Wu , Abdul Hannan Asif , Lei Shi , Rajan Arjan Kalyan Hirani , Nasir Rafique , Hongqi Sun","doi":"10.1016/j.efmat.2022.08.005","DOIUrl":"https://doi.org/10.1016/j.efmat.2022.08.005","url":null,"abstract":"<div>Recently metal-free catalysts become very promising in environmental catalysis own to the nature of being free of metals for avoiding metal leaching-related secondary contamination. Herein, a series of boron and nitrogen co-doped graphene nanotubes were first synthesised by thermal treatment of urea, boric acid, and polyethene glycol (PEG, 2000). The materials fabricated under varied thermal conditions, e.g., different pyrolysis temperature and retention time, were characterised through advanced physiochemical techniques. The as-prepared materials showed outstanding catalytic activity for degradation of 4-hydroxybenzoic acid (HBA) via peroxymonosulfate (PMS) activation, whereas the catalyst pyrolysed at 1100 °C for 6 h (BNG-1100-6h) was found to be the best candidate for environmental remediation, thanks to its engineered surface, exposed active sites, and well-tuned functional groups. Based on the optimal carbocatalyst, reaction conditions such as catalyst loading, PMS dosage, solution pH, and reaction temperature were thoroughly investigated to make it a cost-effective catalytic system. A thermal regenerative path was adopted to enhance the catalyst stability and reusability. Quenching tests and electron paramagnetic resonance (EPR) spectroscopic analysis further revealed the dominant role of singlet oxygen (1O2), a non-radical reactive species, in the degradation of HBA. The current research work will not only provide a facile strategy for development of a carbocatalytic system but also open a new perspective for degradation of emerging contaminants such as HBA via a non-radical route.</div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"1 2","pages":"Pages 139-148"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773058122000278/pdfft?md5=41476ab645a0821bb3747c7af606ba10&pid=1-s2.0-S2773058122000278-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71875320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Understanding role of reactor configuration in electrochemical decomplexation of Ni-EDTA via experiments and simulations 通过实验和模拟了解反应器构型在Ni-EDTA电化学分解中的作用

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.07.001

Penghui Shao , Xiaoyu Zhou , Ying Cao , Feng Wei , Jinyi Tian , Meipeng Jian , Li Zhang , Liming Yang , Xubiao Luo

{"title":"Understanding role of reactor configuration in electrochemical decomplexation of Ni-EDTA via experiments and simulations","authors":"Penghui Shao , Xiaoyu Zhou , Ying Cao , Feng Wei , Jinyi Tian , Meipeng Jian , Li Zhang , Liming Yang , Xubiao Luo","doi":"10.1016/j.efmat.2022.07.001","DOIUrl":"https://doi.org/10.1016/j.efmat.2022.07.001","url":null,"abstract":"<div>Electrochemical decomplexation is a common technique that is widely used in industrial wastewater treatment. Although much research has been conducted to improve the decomplexation efficiency of metal–organic complexes [e.g., Ni-ethylenediaminetetraacetic acid (EDTA)], the effects of the fundamental electrochemical reactor configurations in this technology are often underestimated. This research provides insights into the role of the reactor configuration in electrochemical decomplexation of Ni-EDTA through experiments and simulations. Degradation experiments were conducted at the same current density and flow rate in flow-by (FB) and flow-through (FT) electrochemical reactor configurations. The results show that the FT reactor gives a better removal rate (FB: 35%, FT: 46%) and that its energy consumption is half that of the FB reactor [approximately 207.78 (kW·h)/(kg Ni) less]. Experiments show that the stagnant and back-mixing zones for the FT configuration (Dz = 0.062) are smaller than those for the FB configuration (Dz = 0.205). This promotes mass transport in the reaction environment and decreases problems with the reactor performance. Computational fluid dynamics simulations showed that the velocity and potential distributions were both more even for the FT than for the FB configuration. This increases uniformity of mass transport and the current density distribution, produces less ohmic resistance, and greatly improves energy saving. These experimental and simulation results will enable Ni-EDTA electrochemical decomplexation to be achieved with low energy consumption and high efficiency by using appropriate reactor configurations.</div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"1 2","pages":"Pages 149-159"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773058122000205/pdfft?md5=b14534e2495654aa9231db5625ec54ca&pid=1-s2.0-S2773058122000205-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71875318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Photothermal conversion of CO2 to fuel with nickel-based catalysts: A review 镍基催化剂催化CO2光热转化为燃料的研究进展

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.07.003

Yiling He , Yi Zhou , Ji Feng , Mingyang Xing

{"title":"Photothermal conversion of CO2 to fuel with nickel-based catalysts: A review","authors":"Yiling He , Yi Zhou , Ji Feng , Mingyang Xing","doi":"10.1016/j.efmat.2022.07.003","DOIUrl":"https://doi.org/10.1016/j.efmat.2022.07.003","url":null,"abstract":"<div>Converting CO2 to fuel is a promising strategy to mitigate the greenhouse effect and achieve ‘carbon neutrality’. Photothermal catalysis has been widely used for CO2 reduction because it effectively reduces the apparent activation energy of the reaction and provides milder catalytic conditions as well as higher catalytic efficiency than conventional catalytic methods. In this review, the basic principles of photothermal catalytic CO2 reduction and the factors used to evaluate photothermal catalytic conversion efficiency are introduced. Then, the common types of Ni-based catalysts and their design strategies are summarized and discussed. Among these catalysts, metal oxides have been extensively studied and developed. Accordingly, they currently achieve product yields up to the mmol/(g·h) level. Strategies such as elemental doping and morphology control are often adopted for the modification of photothermal catalysts as a means to improve catalytic performance. Finally, future trends in the field of photothermal catalytic CO2 reduction are proposed, including mechanistic studies, practical applications, and coupling with other carbon-neutral technologies.</div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"1 2","pages":"Pages 204-217"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773058122000229/pdfft?md5=1d5f9b84c6b0f713e83f304c9a920cad&pid=1-s2.0-S2773058122000229-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71874949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Plastic wastes derived carbon materials for green energy and sustainable environmental applications 塑料废弃物衍生碳材料用于绿色能源和可持续环境应用

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.05.005

Zhijie Chen, Wenfei Wei, B. Ni, Hong Chen

引用次数: 29

Incipient Wetness Impregnation to Prepare Bismuth-Modified All-silica Beta Zeolite for Efficient Radioactive Iodine Capture 初湿浸渍法制备铋改性全硅β沸石，用于高效捕获放射性碘

Environmental Functional Materials Pub Date : 2022-06-01 DOI: 10.1016/j.efmat.2022.05.006

Z. Tian, Tien-Shee Chee, R. Meng, Y. Hao, Xiangyu Zhou, Bin Ma, Lin Zhu, Tao Duan, Chengliang Xiao

引用次数: 24