Enhanced Water Resistance and Catalytic Performance of Ru/TiO2 by Regulating Bronsted Acid and Oxygen Vacancy for the Oxidative Removal of 1,2-Dichloroethane and Toluene

Xiaohui Yu; Jiguang Deng; Yuxi Liu

首页> 外文期刊>Environmental Science & Technology: ES&T >Enhanced Water Resistance and Catalytic Performance of Ru/TiO2 by Regulating Bronsted Acid and Oxygen Vacancy for the Oxidative Removal of 1,2-Dichloroethane and Toluene

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Enhanced Water Resistance and Catalytic Performance of Ru/TiO2 by Regulating Bronsted Acid and Oxygen Vacancy for the Oxidative Removal of 1,2-Dichloroethane and Toluene

机译：Enhanced Water Resistance and Catalytic Performance of Ru/TiO2 by Regulating Bronsted Acid and Oxygen Vacancy for the Oxidative Removal of 1,2-Dichloroethane and Toluene

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The compositions of volatile organic compounds(VOCs)under actual industrial conditions are often complex; especially,the interaction of intermediate products easily leads to more toxic emissions that are harmful to the atmospheric environment and human health.Herein,we report a comparative investigation on 1,2-dichloroethane(1,2-DCE)and(l,2-DCE + toluene)oxidation over the Ru/TiO2,phosphotungstic acid(HPW)-modified Ru/TiO2,and oxygen vacancy-rich Ru/TiO2.catalysts.The doping of HPW successfully introduced the 1,2-DCE adsorption sites to promote its oxidation and exhibited outstanding water resistance.For the mixed VOCs,Ru/HPW-TiO2 promoted the preferential and superfluous adsorption of toluene and resulted in the inhibition of 1,2-DCE degradation.Therefore,HPW modification is a successful strategy in catalytic 1,2-DCE oxidation,but Bronsted acid sites tend to adsorb toluene in the mixed VOC oxidation.The Ru/TiOx catalyst exhibited excellent activity and stability in the oxidation of mixed VOCs and could inhibit the generation of byproducts and Cl2 compared with the Ru/HPW-TiO2 catalyst.Compared with the Bronsted acid modification,the oxygen vacancy-rich catalysts are significantly suitable for the oxidation of multicomponent VOCs.

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《Environmental Science & Technology: ES&T》 |2022年第16期|11739-11749|共11页
作者
Xiaohui Yu; Jiguang Deng; Yuxi Liu;
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作者单位

Beijing Key Laboratory far Green Catalysis and Separation,Key Laboratory of Beijing on Regional Air Pollution Control,Key Laboratory of Advanced Functional Materials,Education Ministry of China,Laboratory of Catalysis Chemistry and Nanoscience;

Beijing Key Laboratory for Green Catalysis and Separation,Key Laboratory of Beijing on Regional Air Pollution Control,Key Laboratory of Advanced Functional Materials,Education Ministry of China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类环境科学、安全科学;
关键词
titanium dioxide; Ru-based catalyst; heteropoly acid; 1; 2-dichloroethane oxidation; toluene oxidation; water resistance;

Enhanced Water Resistance and Catalytic Performance of Ru/TiO2 by Regulating Bronsted Acid and Oxygen Vacancy for the Oxidative Removal of 1,2-Dichloroethane and Toluene

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