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作者:

Wang, Xun (Wang, Xun.) | Wu, Linke (Wu, Linke.) | Wang, Zhiwei (Wang, Zhiwei.) | Feng, Ying (Feng, Ying.) | Liu, Yuxi (Liu, Yuxi.) | Dai, Hongxing (Dai, Hongxing.) | Wang, Zhihua (Wang, Zhihua.) | Deng, Jiguang (Deng, Jiguang.)

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EI Scopus SCIE

摘要:

To overcome the main challenge of low photocatalytic efficiency and high energy consumption of thermoca-talysis in the oxidation of volatile organic compounds (VOCs), MOF-derived mesoporous disk-like yPd/xN-TiO2 (x = 3.2, 5.5, 7.7 wt%, and y = 0.26 wt%) were prepared by ball milling-calcination method for photothermal catalytic oxidation of ethyl acetate. Morphological and pore structure characterization indicated that Pd/N-TiO2 had abundant pore structure and large specific surface area, which facilitated the adsorption of pollutants on the active sites. Among the catalysts, 0.26 Pd/3.2 N-TiO2 exhibited optimal photothermal catalytic performance. The corresponding temperature required for 50% and 90% conversion of ethyl acetate was 192 and 212 degrees C, with the specific reaction rate of 0.95 mu mol/(gPd s) at 150 degrees C. Doping of N and loading of Pd nanoparticles enhanced the light absorption capacity, promoted the charge separation, and the adsorption capacity of ethyl acetate, resulting in a high photothermal catalytic oxidation activity. The detection of free radicals indicated that the photothermal synergy was associated with the generation of reactive oxygen species over 0.26 Pd/3.2 N-TiO2 under light irradiation condition, which directly participated in the catalytic removal of ethyl acetate. A proper increase in temperature could also promote the migration of carriers. The photothermal catalytic oxidation of VOCs over MOF-derivatives had great potential application for environmental protection.

关键词:

Derivatives Photothermal catalytic oxidation Ethyl acetate Synergic mechanism Metal-organic frameworks

作者机构:

  • [ 1 ] [Wang, Xun]Beijing Univ Technol, Fac Environm & Life, Dept Environm Chem Engn, Beijing Key Lab Green Catalysis & Separat,Sch Envi, Beijing 100124, Peoples R China
  • [ 2 ] [Wu, Linke]Beijing Univ Technol, Fac Environm & Life, Dept Environm Chem Engn, Beijing Key Lab Green Catalysis & Separat,Sch Envi, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Zhiwei]Beijing Univ Technol, Fac Environm & Life, Dept Environm Chem Engn, Beijing Key Lab Green Catalysis & Separat,Sch Envi, Beijing 100124, Peoples R China
  • [ 4 ] [Feng, Ying]Beijing Univ Technol, Fac Environm & Life, Dept Environm Chem Engn, Beijing Key Lab Green Catalysis & Separat,Sch Envi, Beijing 100124, Peoples R China
  • [ 5 ] [Liu, Yuxi]Beijing Univ Technol, Fac Environm & Life, Dept Environm Chem Engn, Beijing Key Lab Green Catalysis & Separat,Sch Envi, Beijing 100124, Peoples R China
  • [ 6 ] [Dai, Hongxing]Beijing Univ Technol, Fac Environm & Life, Dept Environm Chem Engn, Beijing Key Lab Green Catalysis & Separat,Sch Envi, Beijing 100124, Peoples R China
  • [ 7 ] [Deng, Jiguang]Beijing Univ Technol, Fac Environm & Life, Dept Environm Chem Engn, Beijing Key Lab Green Catalysis & Separat,Sch Envi, Beijing 100124, Peoples R China
  • [ 8 ] [Wang, Zhihua]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

通讯作者信息:

  • [Deng, Jiguang]Beijing Univ Technol, Fac Environm & Life, Dept Environm Chem Engn, Beijing Key Lab Green Catalysis & Separat,Sch Envi, Beijing 100124, Peoples R China;;[Wang, Zhihua]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China;;

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来源 :

APPLIED CATALYSIS B-ENVIRONMENTAL

ISSN: 0926-3373

年份: 2023

卷: 322

2 2 . 1 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:20

被引次数:

WoS核心集被引频次: 69

SCOPUS被引频次: 71

ESI高被引论文在榜: 1 展开所有

  • 2023-7

万方被引频次:

中文被引频次:

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