{"title":"Enhancing the photocatalytic removal of toluene by modified porous TiO2 with internal hydrophobic interface","authors":"Hao Ge , Shuyuan Dong , Zhenfeng Bian","doi":"10.1016/j.efmat.2023.02.002","DOIUrl":"https://doi.org/10.1016/j.efmat.2023.02.002","url":null,"abstract":"<div><p>The efficiency and stability of photocatalytic oxidation techniques in the treatment of volatile organic compounds (VOCs) in the air are affected by the adsorption performance at the reaction interface and the photogenerated electron–hole separation efficiency. Carbon-loaded porous TiO<sub>2</sub> with an internal hydrophobic interface was prepared by finely controlling the calcination time and temperature of a titanium-based metal–organic framework (MIL-125). The carbon load in the porous TiO<sub>2</sub> presents a gradient from the pore surface to the interior. The formed hydrophobic interface in the channel avoids competitive adsorption between gas-phase toluene and H<sub>2</sub>O and effectively improves photogenerated electron transfer. Experiments and comprehensive analysis by using techniques such as thermogravimetric analysis, Raman spectroscopy, and ultraviolet diffuse-reflectance spectroscopy clarified the mechanism of gradient carbon formation in the porous TiO<sub>2</sub>, in which the organic ligands in MIL-125 are carbonized during calcination because of the low oxygen content of the pores. The sample prepared by pyrolyzing MIL-125 at 400 °C for 1 h showed the best activity in the photocatalytic degradation of toluene; the activity was twice that achieved with the commercial photocatalyst P25. Surface photovoltage spectroscopy and photoelectrochemical measurements proved that the gradient carbon load enhances photogenerated electron transfer in the porous TiO<sub>2</sub>. <em>In-situ</em> diffuse-reflectance infrared Fourier-transform spectroscopy was used to investigate the processes of photocatalytic degradation of toluene, in which the generation of C–H-containing intermediates is a crucial step. This research provides a novel concept for the future design and modification of photocatalyst structures for the effective photocatalytic degradation of VOCs.</p></div>","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"2 1","pages":"Pages 25-35"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49904109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Metal sulfide-based catalysts in advanced oxidation processes for water decontamination","authors":"Zelin Wu, Z. Xiong, Bo-Chen Lai","doi":"10.1016/j.efmat.2023.01.004","DOIUrl":"https://doi.org/10.1016/j.efmat.2023.01.004","url":null,"abstract":"","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81062314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chunlu Ma, Hui Zhang, Wenwen Kong, B. Shen, H. Lyu
{"title":"Bimetallic atomic Fe–Mn metal-nitrogen active sites for synergistic enhancement of CO2 electroreduction efficiency","authors":"Chunlu Ma, Hui Zhang, Wenwen Kong, B. Shen, H. Lyu","doi":"10.1016/j.efmat.2023.01.003","DOIUrl":"https://doi.org/10.1016/j.efmat.2023.01.003","url":null,"abstract":"","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87484246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuhao Zhao, Dongxu Wang, Huinan Che, Bin Liu, Y. Ao
{"title":"Dual-strategy modification on g-C3N4 for highly efficient inactivation of Microcystis aeruginosa under visible light","authors":"Yuhao Zhao, Dongxu Wang, Huinan Che, Bin Liu, Y. Ao","doi":"10.1016/j.efmat.2023.01.001","DOIUrl":"https://doi.org/10.1016/j.efmat.2023.01.001","url":null,"abstract":"","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85057224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microwave-assisted synthesis of bimetallic NiCo-MOF-74 with enhanced open metal site for efficient CO2 capture","authors":"Changwei Chen, M. Kosari, Meizan Jing, Chi He","doi":"10.1016/j.efmat.2023.01.002","DOIUrl":"https://doi.org/10.1016/j.efmat.2023.01.002","url":null,"abstract":"","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"178 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73788619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Challenging the contamination of per- and polyfluoroalkyl substances in water: Advanced oxidation or reduction?","authors":"Zhanghao Chen, Xinhao Wang, R. Dong, Yutong Zhang, Xin Jin, Cheng Gu","doi":"10.1016/j.efmat.2022.11.002","DOIUrl":"https://doi.org/10.1016/j.efmat.2022.11.002","url":null,"abstract":"","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79915923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chunyang Zhai, Yangpeng Chen, Xiaoxiao Huang, A. Isaev, Mingshan Zhu
{"title":"Recent progress on single-atom catalysts in advanced oxidation processes for water treatment","authors":"Chunyang Zhai, Yangpeng Chen, Xiaoxiao Huang, A. Isaev, Mingshan Zhu","doi":"10.1016/j.efmat.2022.11.001","DOIUrl":"https://doi.org/10.1016/j.efmat.2022.11.001","url":null,"abstract":"","PeriodicalId":100481,"journal":{"name":"Environmental Functional Materials","volume":"193 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74198480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}