Citation: Binbin Zhai, Haonan Wu, Zhen Cao, Shien Zhu, Rao Gu, Tianyi Wang, Xiaoyu Zhou, Chengyin Wang. Air-driven AgInS₂ QDs-modified Mg-doped poly(triazine imide) as a dual-function photocatalyst for H₂O₂ generation and glycerol oxidation[J]. Chinese Chemical Letters, ;2026, 37(12): 112752. doi: 10.1016/j.cclet.2026.112752 shu

Air-driven AgInS₂ QDs-modified Mg-doped poly(triazine imide) as a dual-function photocatalyst for H₂O₂ generation and glycerol oxidation

Binbin Zhai ^a ,
Haonan Wu ^a ,
Zhen Cao ^a ,
Shien Zhu ^a ,
Rao Gu ^a ,
Tianyi Wang ^{a, *,} ,
Xiaoyu Zhou ^{b, *,} ,
Chengyin Wang ^{a, *,}

a.
College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
b.
School of Resources and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China

wangty@yzu.edu.cn

xiaoyuzhou@jsut.edu.cn

wangcy@yzu.edu.cn

Received Date: 25 December 2025
Revised Date: 31 January 2026
Accepted Date: 8 April 2026
Available Online: 10 April 2026

Figures(5)

Photocatalytic production of hydrogen peroxide (H₂O₂) offers a sustainable alternative to the traditional anthraquinone process. Herein, a 0D/2D heterojunction photocatalyst was constructed by coupling AgInS₂ quantum dots with Mg-doped poly (triazine imide), exhibiting excellent photocatalytic performance under visible light and ambient air. Glycerol was employed as a hole scavenger and proton donor, the optimally proportioned catalyst AIS@M_0.1PTI-2 enabling an H₂O₂ production rate of 4002.81 μmol g^-1 h^-1 in 40 vol% glycerol solution-nearly 9.9 times higher than that in pure water. Meanwhile, selective oxidation of glycerol yielded 3398.47 μmol g^-1 h^-1 dihydroxyacetone (DHA) with 60.01% selectivity. Mg doping improved PTI crystallinity, enhanced charge mobility. AgInS₂ quantum dots further boosted visible-light absorption and interfacial electron transfer. Mechanistic investigations, including LSV, EPR, XPS, ¹³C NMR, DFT, and radical trapping, confirmed selective promotion of the two-electron oxygen reduction pathway and clarified the electron flow across the heterojunction. The mutual enhancement between oxidation and reduction processes enables efficient solar-to-chemical energy conversion, highlighting the potential of this system for green chemical manufacturing.
- Poly(triazine imide),
- Hydrogen peroxide,
- Photocatalysis,
- Glycerol oxidation,
- AgInS₂ quantum dots
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Air-driven AgInS2 QDs-modified Mg-doped poly(triazine imide) as a dual-function photocatalyst for H2O2 generation and glycerol oxidation

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通讯作者: 陈斌, bchen63@163.com

Air-driven AgInS₂ QDs-modified Mg-doped poly(triazine imide) as a dual-function photocatalyst for H₂O₂ generation and glycerol oxidation