Visible-light-assisted PMS activation by heterojunction photocatalyst MgIn2S4/Bi2O3 for tetracycline degradation

Zhang, Chunxin; Ni, Jing; Ding, Ning; Liu, Hong

doi:10.1016/j.catcom.2023.106773

Cited by 10 publications

(1 citation statement)

References 57 publications

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“…To obtain satisfactory removal efficiency, several studies have paid great attention to the visible-light-assisted PMS activation process, which can speed up the transfer between photogenerated pairs, leading to better catalytic performance [ 54 , 55 , 56 ]. There is a synergistic effect between the visible-light-driven photocatalysis process and SR-based heterogeneous AOPs, which intensely improved the catalytic activity in wastewater treatment [ 57 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Degradation of Levofloxacin through Visible-Light-Driven Peroxymonosulfate Activation over CuInS2/g-C3N4 Heterojunctions

Zhong,

Ji,

et al. 2023

Nanomaterials

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In this work, the heterojunctions of CuInS2 embedded in the g-C3N4 materials (xCuInS2/g-C3N4, abbreviated as xCIS/GCN) was successfully prepared for peroxymonosulfate (PMS) activation under visible light. The catalysts are characterized by different techniques, such as XRD, FTIR, SEM, TEM, and UV-vis. The unique heterojunction composites can suppress the recombination of photogenerated pairs. The catalytic results showed that the 3CIS/GCN exhibited excellent catalytic levofloxacin (LVF) degradation efficiency, while more than 98.9% of LVF was removed in 60 min over a wide pH range. SO4•−, O2•−, OH•, and 1O2 were verified as the main reactive species for LVF degradation via the quenching experiments and electron paramagnetic resonance technology (EPR). The synergetic effect of xCIS/GCN, PMS, and visible light irradiation was discussed. The possible LVF degradation pathway was proposed through byproducts analysis (LC-MS). Moreover, the 3CIS/GCN/vis-PMS system has very low metal leaching. Owing to xCIS/GCN having good properties for PMS activation, it has potential applications for LVF or other hazardous pollutants degradation.

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