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Author:

Wang, Xun (Wang, Xun.) | Li, Zeya (Li, Zeya.) | Gao, Ruyi (Gao, Ruyi.) | Yu, Xiaohui (Yu, Xiaohui.) | Feng, Ying (Feng, Ying.) | Wang, Zhiwei (Wang, Zhiwei.) | Jing, Lin (Jing, Lin.) | Wei, Zhen (Wei, Zhen.) | Liu, Yuxi (Liu, Yuxi.) | Dai, Hongxing (Dai, Hongxing.) | Zhao, Zhenxia (Zhao, Zhenxia.) | Deng, Jiguang (Deng, Jiguang.)

Indexed by:

Scopus SCIE

Abstract:

Chlorinated volatile organic compounds come from a wide range of sources and are highly toxic, posing a serious threat to biological health and the environment. Herein, a high-efficiency and energy-saving photothermal synergistic catalytic oxidation method was developed for the removal of 1,2-dichloroethane (1,2-DCE). Compared to traditional thermocatalysis, the 1,2-DCE conversion over Ru-U6S in photothermal synergistic catalysis at 340 degrees C increased by approximately 44% not only reducing energy consumption but also avoiding the instability of MOF structure caused by high reaction temperature. The excellent photothermal catalytic oxidation activity was derived from the synergistic effect of photo- and thermocatalysis. Ru-U6S demonstrated excellent 1,2-DCE adsorption capacity and stronger light utilization and could produce more reactive oxygen species ((OH)-O-center dot and O-center dot(2)-) after light illumination, which participated in the oxidation reaction, promoting the release of the active site of the catalyst. The results of H2O-TPD and NH3-DRIFTS exhibited that the use of S-containing ligands in the synthesis process increased the hydroxyl groups and Br & oslash;nsted acid sites, significantly improved the selectivity of CO2 and HCl in the oxidation process, and reduced the release of chlorine-containing byproducts. This work provides a high-efficiency and energy-saving strategy for removing chlorinated volatile organic compounds and increasing the selectivity of ideal products directly with MOFs directly.

Keyword:

HCl selectivity photothermal catalyticoxidation Metal-organic frameworks Br & oslash;nsted acid 1,2-dichloroethane

Author Community:

  • [ 1 ] [Wang, Xun]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Zeya]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 3 ] [Gao, Ruyi]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 4 ] [Yu, Xiaohui]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 5 ] [Feng, Ying]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 6 ] [Wang, Zhiwei]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 7 ] [Jing, Lin]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 8 ] [Wei, Zhen]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 9 ] [Liu, Yuxi]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 10 ] [Dai, Hongxing]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 11 ] [Deng, Jiguang]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China
  • [ 12 ] [Zhao, Zhenxia]Guangxi Univ, Sch Chem & Chem Engn, Educ Dept Guangxi Zhuang Autonomous Reg, Key Lab New Low Carbon Green Chem Technol, Nanning 530004, Peoples R China

Reprint Author's Address:

  • [Deng, Jiguang]Beijing Univ Technol, Beijing Key Lab Green Catalysis & Separat, Key Lab Beijing Reg Air Pollut Control, Key Lab Adv Funct Mat,Educ Minist China, Beijing 100124, Peoples R China;;

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Source :

ENVIRONMENTAL SCIENCE & TECHNOLOGY

ISSN: 0013-936X

Year: 2024

Issue: 38

Volume: 58

Page: 17190-17200

1 1 . 4 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 1

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 11

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