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Co-catalytic effect of WS2 on the copper slag mediated peroxodisulfate activation for the simultaneous elimination of typical flotation reagent benzotriazole and Cr(VI)

Authorized Users Only
2023
Authors
Ma, Bo
Yao, Jun
Šolević Knudsen, Tatjana
Chen, Zhihui
Pang, Wancheng
Liu, Bang
Cao, Ying
Zhu, Xiaozhe
Zhao, Chenchen
Article (Accepted Version)
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Abstract
In this study, efficient simultaneous elimination of typical mine pollutants benzotriazole (BTA) and Cr(VI) was achieved by using a copper slag (CS) activated peroxodisulfate (PDS) Fenton system, with WS2 as a co-catalyst. The combined use of these two mine-sourced materials enables excellent pollution removal efficiency. CS can continuously release ferrous ions for the advanced oxidation processes (AOPs), while WS2 as a co-catalyst has key roles in acceleration of the rate-limiting step of Fe3+/Fe2+ conversion and prevention of Fe3+ precipitation. In this process, Fe3+/Fe2+ conversion primarily occurs on the surface of WS2, whereas PDS decomposition and BTA degradation are dominated by homogeneous Fenton reactions. Dissolved Fe2+ has a main role in the activation of PDS and generation of ROS. The contributions of free radicals, singlet oxygen and Fe(IV) in BTA degradation were carefully evaluated. Fe(IV) was identified as the major ROS responsible for degradation of BTA in the CS/WS2/...PDS system. This was further confirmed by the Raman spectra and the detection of BTA degradation products formed by the transfer of oxygen atoms. Kinetics calculation showed that Fe(IV) was responsible for 63.4 % of the degradation of BTA. More importantly, water matrix had a low impact on the degradation of BTA due to the high selectivity of Fe(IV). This study provides a new strategy for a cost-effective and efficient decontamination of the environment in mining areas.

Keywords:
Combined pollution / Copper slag / Ferryl / Iron redox cycle / Kinetics / Metal sulfide
Source:
Chemical Engineering Journal, 2023, 451, 3, 138888-
Publisher:
  • Elsevier
Funding / projects:
  • Major National R & D Projects for Chinese Ministry of Science and Technology (2019YFC1803500)
  • National Natural Science Foundation of China (41720104007)
  • China University of Geosciences, Beijing (ZD2021YC027)
  • China University of Geosciences, Beijing ( ZD2021YC045 )
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
  • Higher Education Discipline Innovation Project ( B21017 )
Note:
  • This is the peer-reviewed version of the article: B. Ma, J. Yao, T. Šolević Knudsen, Z. Chen, W. Pang, B. Liu, Y. Cao, X. Zhu, C. Zhao, Co-catalytic effect of WS2 on the copper slag mediated peroxodisulfate activation for the simultaneous elimination of typical flotation reagent benzotriazole and Cr(VI), Chemical Engineering Journal (2022) 451, 3, 138888, doi: https://doi.org/10.1016/j.cej.2022.138888
  • Published version: https://cer.ihtm.bg.ac.rs/handle/123456789/5369
Related info:
  • Version of
    https://cer.ihtm.bg.ac.rs/handle/123456789/5369
  • Version of
    https://doi.org/10.1016/j.cej.2022.138888

DOI: 10.1016/j.cej.2022.138888

ISSN: 1385-8947

Scopus: 2-s2.0-85137290343
[ Google Scholar ]
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/5547
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Ma, Bo
AU  - Yao, Jun
AU  - Šolević Knudsen, Tatjana
AU  - Chen, Zhihui
AU  - Pang, Wancheng
AU  - Liu, Bang
AU  - Cao, Ying
AU  - Zhu, Xiaozhe
AU  - Zhao, Chenchen
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5547
AB  - In this study, efficient simultaneous elimination of typical mine pollutants benzotriazole (BTA) and Cr(VI) was achieved by using a copper slag (CS) activated peroxodisulfate (PDS) Fenton system, with WS2 as a co-catalyst. The combined use of these two mine-sourced materials enables excellent pollution removal efficiency. CS can continuously release ferrous ions for the advanced oxidation processes (AOPs), while WS2 as a co-catalyst has key roles in acceleration of the rate-limiting step of Fe3+/Fe2+ conversion and prevention of Fe3+ precipitation. In this process, Fe3+/Fe2+ conversion primarily occurs on the surface of WS2, whereas PDS decomposition and BTA degradation are dominated by homogeneous Fenton reactions. Dissolved Fe2+ has a main role in the activation of PDS and generation of ROS. The contributions of free radicals, singlet oxygen and Fe(IV) in BTA degradation were carefully evaluated. Fe(IV) was identified as the major ROS responsible for degradation of BTA in the CS/WS2/PDS system. This was further confirmed by the Raman spectra and the detection of BTA degradation products formed by the transfer of oxygen atoms. Kinetics calculation showed that Fe(IV) was responsible for 63.4 % of the degradation of BTA. More importantly, water matrix had a low impact on the degradation of BTA due to the high selectivity of Fe(IV). This study provides a new strategy for a cost-effective and efficient decontamination of the environment in mining areas.
PB  - Elsevier
T2  - Chemical Engineering Journal
T1  - Co-catalytic effect of WS2 on the copper slag mediated peroxodisulfate activation for the simultaneous elimination of typical flotation reagent benzotriazole and Cr(VI)
VL  - 451
IS  - 3
SP  - 138888
DO  - 10.1016/j.cej.2022.138888
ER  - 
@article{
author = "Ma, Bo and Yao, Jun and Šolević Knudsen, Tatjana and Chen, Zhihui and Pang, Wancheng and Liu, Bang and Cao, Ying and Zhu, Xiaozhe and Zhao, Chenchen",
year = "2023",
abstract = "In this study, efficient simultaneous elimination of typical mine pollutants benzotriazole (BTA) and Cr(VI) was achieved by using a copper slag (CS) activated peroxodisulfate (PDS) Fenton system, with WS2 as a co-catalyst. The combined use of these two mine-sourced materials enables excellent pollution removal efficiency. CS can continuously release ferrous ions for the advanced oxidation processes (AOPs), while WS2 as a co-catalyst has key roles in acceleration of the rate-limiting step of Fe3+/Fe2+ conversion and prevention of Fe3+ precipitation. In this process, Fe3+/Fe2+ conversion primarily occurs on the surface of WS2, whereas PDS decomposition and BTA degradation are dominated by homogeneous Fenton reactions. Dissolved Fe2+ has a main role in the activation of PDS and generation of ROS. The contributions of free radicals, singlet oxygen and Fe(IV) in BTA degradation were carefully evaluated. Fe(IV) was identified as the major ROS responsible for degradation of BTA in the CS/WS2/PDS system. This was further confirmed by the Raman spectra and the detection of BTA degradation products formed by the transfer of oxygen atoms. Kinetics calculation showed that Fe(IV) was responsible for 63.4 % of the degradation of BTA. More importantly, water matrix had a low impact on the degradation of BTA due to the high selectivity of Fe(IV). This study provides a new strategy for a cost-effective and efficient decontamination of the environment in mining areas.",
publisher = "Elsevier",
journal = "Chemical Engineering Journal",
title = "Co-catalytic effect of WS2 on the copper slag mediated peroxodisulfate activation for the simultaneous elimination of typical flotation reagent benzotriazole and Cr(VI)",
volume = "451",
number = "3",
pages = "138888",
doi = "10.1016/j.cej.2022.138888"
}
Ma, B., Yao, J., Šolević Knudsen, T., Chen, Z., Pang, W., Liu, B., Cao, Y., Zhu, X.,& Zhao, C.. (2023). Co-catalytic effect of WS2 on the copper slag mediated peroxodisulfate activation for the simultaneous elimination of typical flotation reagent benzotriazole and Cr(VI). in Chemical Engineering Journal
Elsevier., 451(3), 138888.
https://doi.org/10.1016/j.cej.2022.138888
Ma B, Yao J, Šolević Knudsen T, Chen Z, Pang W, Liu B, Cao Y, Zhu X, Zhao C. Co-catalytic effect of WS2 on the copper slag mediated peroxodisulfate activation for the simultaneous elimination of typical flotation reagent benzotriazole and Cr(VI). in Chemical Engineering Journal. 2023;451(3):138888.
doi:10.1016/j.cej.2022.138888 .
Ma, Bo, Yao, Jun, Šolević Knudsen, Tatjana, Chen, Zhihui, Pang, Wancheng, Liu, Bang, Cao, Ying, Zhu, Xiaozhe, Zhao, Chenchen, "Co-catalytic effect of WS2 on the copper slag mediated peroxodisulfate activation for the simultaneous elimination of typical flotation reagent benzotriazole and Cr(VI)" in Chemical Engineering Journal, 451, no. 3 (2023):138888,
https://doi.org/10.1016/j.cej.2022.138888 . .

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