ZnO/CuO Piezoelectric Nanocatalysts for the Degradation of Organic Pollutants
Source abstract
Abstract
The p–n heterojunction nanocatalyst was successfully synthesized by decorating the surface of ZnO nanorods with CuO by using a low-temperature synthesis method. It was used as the driving force for the removal of tetracycline (TC) in water with mechanical stirring. Different ratios of ZnO/CuO piezoelectric nanocatalysts were examined. The nanoscale ZnO/CuO catalyst achieved a 98% removal rate of TC in water after 120 min. The main active species for TC degradation were identified as hydroxyl radicals ( • OH) and superoxide radicals ( • O 2 – ) by quenching experiments. The piezoelectric current generated by ZnO/CuO-1.5 was found to be 3.1 and 6.2 times higher than those of pure ZnO and CuO, respectively, due to the formation of a p–n heterojunction structure and built-in electric field situation. The facile and low-temperature synthesis process of the ZnO/CuO nanocatalyst with superior removal rates provides practical support for large-scale application in wastewater treatment.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: ZnO doping and properties · Advanced Photocatalysis Techniques · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Chemistry and Engineering, Hu-bei Key Laboratory of Biomass Fibers and Eco-dyeing and Finishing, Wuhan Textile University, Wuhan 430073, China
Materials Science and Engineering, State Key Laboratory of New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China
The Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, China
Water Technology Research Center, AGplus Technologies Co., Ptd., 303 Longhai Er Road, West Zone, Dayawan, Huizhou 516082, Guangdong, China
Funding
Wuhan Textile University
References (56)
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