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FeOOH Quantum Dot-Coupled Z-Scheme BiVO4/g-C3N4 Heterojunction for Enhancing Photo-Fenton Reactions
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2023-08-31 , DOI: 10.1021/acsanm.3c03138
Rui Liu 1 , Ru Li 2 , Lei Yang 3 , Rong-Xu Wang 1 , Han-Yang Chen 1 , Nan Wang 1 , Zhi Li 1 , You-Qiang Chen 1 , Seeram Ramakrishna 4 , Yun-Ze Long 1, 5
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2023-08-31 , DOI: 10.1021/acsanm.3c03138
Rui Liu 1 , Ru Li 2 , Lei Yang 3 , Rong-Xu Wang 1 , Han-Yang Chen 1 , Nan Wang 1 , Zhi Li 1 , You-Qiang Chen 1 , Seeram Ramakrishna 4 , Yun-Ze Long 1, 5
Affiliation
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Herein, FeOOH quantum dots and a Z-scheme BiVO4/g-C3N4 catalyst were coupled to obtain a Z-scheme heterojunction for photo-Fenton reactions to facilitate the transport of electrons and the generation of radicals. The obtained materials exhibited better visible light-driven photo-Fenton degradation of Rhodamine B, which is 22.06 times as high as pure BiVO4, 18.65 times as high as pure g-C3N4, and 3.44 times as high as BiVO4/g-C3N4, showing great potential in photo-Fenton degradation of pollutants. Moreover, the performance tests, radical capture experiments, and time-resolved fluorescence spectroscopy revealed that electron migration exists between the BiVO4/g-C3N4 and FeOOH-QDs. This composite system accelerates the cycling of Fe3+/Fe2+ during the photo-Fenton process, thus continuously generating reactive species (hydroxyl radicals (−OH) and superoxide radicals (−O2–)), leading to the rapid degradation of organic pollutants.
中文翻译：
FeOOH 量子点耦合 Z 型 BiVO4/g-C3N4 异质结用于增强光芬顿反应
在此，FeOOH量子点和Z型BiVO 4 /gC 3 N 4催化剂偶联以获得用于光芬顿反应的Z型异质结，以促进电子的传输和自由基的产生。所得材料对罗丹明B表现出更好的可见光驱动光芬顿降解性能，分别是纯BiVO 4的22.06倍、纯gC 3 N 4的18.65倍、BiVO 4 /gC 3的3.44倍。氮4，在光芬顿降解污染物方面显示出巨大的潜力。此外，性能测试、自由基捕获实验和时间分辨荧光光谱表明BiVO 4 /gC 3 N 4和FeOOH-QDs之间存在电子迁移。该复合体系加速了光芬顿过程中Fe 3+ /Fe 2+的循环，从而不断产生活性物质（羟基自由基（−OH）和超氧自由基（−O 2 –）），导致Fe 3+ /Fe 2+ 的快速降解。有机污染物。
更新日期：2023-08-31
中文翻译：
FeOOH 量子点耦合 Z 型 BiVO4/g-C3N4 异质结用于增强光芬顿反应
在此，FeOOH量子点和Z型BiVO 4 /gC 3 N 4催化剂偶联以获得用于光芬顿反应的Z型异质结，以促进电子的传输和自由基的产生。所得材料对罗丹明B表现出更好的可见光驱动光芬顿降解性能，分别是纯BiVO 4的22.06倍、纯gC 3 N 4的18.65倍、BiVO 4 /gC 3的3.44倍。氮4，在光芬顿降解污染物方面显示出巨大的潜力。此外，性能测试、自由基捕获实验和时间分辨荧光光谱表明BiVO 4 /gC 3 N 4和FeOOH-QDs之间存在电子迁移。该复合体系加速了光芬顿过程中Fe 3+ /Fe 2+的循环，从而不断产生活性物质（羟基自由基（−OH）和超氧自由基（−O 2 –）），导致Fe 3+ /Fe 2+ 的快速降解。有机污染物。
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