Preparation and Enhanced Catalytic Performance of a Polyhedral BiVO4-Nanoparticle-Modified ZnO Flower-like Nanorod Structure Composite Material
Yuanyuan Lv, Neng Li, Jin Liu, Quanhui Liu, Xueqi Hui, Qiang Li
TL;DR
A new composite material was created to efficiently break down harmful organic pollutants in water using light.
Contribution
A novel BiVO4@ZnO heterojunction composite was developed with significantly improved photocatalytic performance for organic dye degradation.
Findings
The composite achieved 93.18% methylene blue degradation under UV light in 30 minutes.
The material showed high stability and efficiency across multiple organic dyes and light conditions.
Enhanced performance is due to better electron-hole separation and expanded light absorption.
Abstract
Organic pollutants pose a significant threat to both the ecological environment and human health. In this study, BiVO4@ZnO heterojunction composites were synthesized via a two-step hydrothermal method. The incorporation of polyhedral BiVO4 onto the flower-like structure of ZnO effectively enhanced the photocatalytic performance of the composite. Compared with ZnO flower-like nanorods, the BiVO4@ZnO heterojunction composite photocatalysts achieved degradation efficiencies of 93.18% (k = 0.09063) and 89.64% (k = 0.007661) for methylene blue (MB) within 30 min under ultraviolet and visible light irradiation, respectively. The photocatalytic activity of the BiVO4@ZnO composites was also evaluated against various organic dyes, including rhodamine B (RhB), Congo red (CR), methyl orange (MO), and methylene blue (MB). Under ultraviolet light, the catalysts showed particularly high activity…
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Taxonomy
TopicsAdvanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Advanced Nanomaterials in Catalysis