PHOTOCATALYTIC DEGRADATION OF TRIMETHOPRIM BASED ON WO<sub>3-<i>x</i></sub> UNDER FULL SPECTRUM

CHEN Shuxin; ZHOU Jingqing; SUN Qinqin; WANG Kun; LIU Zhengzheng; YU Lei; LIU Jinsong; WANG Jing

doi:10.13205/j.hjgc.202302019

Volume 41 Issue 2

Feb. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(2): 140-145,172

CHEN Shuxin, ZHOU Jingqing, SUN Qinqin, WANG Kun, LIU Zhengzheng, YU Lei, LIU Jinsong, WANG Jing. PHOTOCATALYTIC DEGRADATION OF TRIMETHOPRIM BASED ON WO3-x UNDER FULL SPECTRUM[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(2): 140-145,172. doi: 10.13205/j.hjgc.202302019

Citation:

CHEN Shuxin, ZHOU Jingqing, SUN Qinqin, WANG Kun, LIU Zhengzheng, YU Lei, LIU Jinsong, WANG Jing. PHOTOCATALYTIC DEGRADATION OF TRIMETHOPRIM BASED ON WO_3-x UNDER FULL SPECTRUM[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(2): 140-145,172. doi: 10.13205/j.hjgc.202302019

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PHOTOCATALYTIC DEGRADATION OF TRIMETHOPRIM BASED ON WO_3-x UNDER FULL SPECTRUM

doi: 10.13205/j.hjgc.202302019

CHEN Shuxin^1,2,
ZHOU Jingqing^1,2,
SUN Qinqin^1,2,
WANG Kun³,
LIU Zhengzheng^1,2,
YU Lei^1,2,
LIU Jinsong^1,2,
WANG Jing^{1,2
,
,}

1. Zhejiang Ecological and Environmental Monitoring Center, Hangzhou 310012, China;
2. Zhejiang Key Laboratory of Ecological and Environmental Monitoring, Forewarning and Quality Control, Hangzhou 310012, China;
3. Department of Environmental Science, Zhejiang University, Hangzhou 310058, China

Received Date: 2022-03-31
Available Online: 2023-05-25
Publish Date: 2023-02-01

Abstract

Abstract

Photocatalysis is a green and efficient pollutant treatment technology. The lack of utilization of the mid-infrared light region by traditional photocatalytic materials causes a waste of resources and limits the upper limit of pollutants' degradation efficiency. This study used photocatalytic degradation of TMP based on WO_3-x to explore the degradation performance under different spectra and the degradation mechanism under the optimal degradation condition. The results showed that TMP was hardly degraded under dark and infrared light conditions. Compared with UV-visible light, the degradation of TMP under full spectrum conditions was increased by 44.8%. The mechanism of TMP degradation by WO_3-x photocatalytic reaction in the two systems was similar, and O^-₂· and H₂O₂ were the active species that played the main role. During the degradation process, a large number of active radicals were generated on the catalyst surface and then entered the homogeneous system to promote the degradation of TMP. At the same time, temperature was not the dominant factor in improving the degradation rate in the reaction system, because WO_3-x exhibited excellent degradation ability due to the effective absorption of the mid-infrared light region of the full spectrum.
- photocatalysis,
- full-spectrum,
- trimethoprim,
- WO_3-x

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References(28)

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