作者
Hira Fatima, Muhammad Rizwan Azhar, Yijun Zhong, Yasir Arafat, Mehdi Khiadani, Zongping Shao
发表日期
2022/5/15
期刊
Journal of Colloid and Interface Science
卷号
614
页码范围
538-546
出版商
Academic Press
简介
Semiconducting zinc oxide nanoparticles (ZnO NPs) hold great potential as photocatalysts in wastewater treatment because of their favorable bandgap and cost-effectiveness. Unfortunately, ZnO NPs usually show rapid charge recombination that limits their photocatalytic efficacy significantly. Herein, we report a facile way of modifying ZnO NPs with zeolite imidazole framework-8 (ZIF8). A synergy between the two components may tackle the drawback of fast charge recombination for pristine ZnO NPs. Improved performance of photocatalytic degradation of methylene blue (MB) is confirmed by comparing with pristine ZnO and ZIF8 as the catalysts. The ZIF8 in the composite serves as a trap for photogenerated electrons, thus reducing the rate of charge recombination to enhance the photocatalysis rate. In addition, the hybridization process suppresses the aggregation of ZnO NPs, providing a large surface area and a …
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H Fatima, MR Azhar, Y Zhong, Y Arafat, M Khiadani… - Journal of Colloid and Interface Science, 2022