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Abstract This paper reported a novel method to synthesize porous ZnO/ZnFe 2 O 4 particles by chemically etching ZnO/ZnO 2 O 4 /SO 2 composite particles in an alkaline solution,… Click to show full abstract
Abstract This paper reported a novel method to synthesize porous ZnO/ZnFe 2 O 4 particles by chemically etching ZnO/ZnO 2 O 4 /SO 2 composite particles in an alkaline solution, and the porosity of the particles could be tailored by controlling the concentration of SO 2 in the ZnO/ZnO 2 O 4 /SO 2 composites. The photocatalytic performance of both solid and porous ZnO/ZnFe 2 O 4 particles was investigated in methylene blue (MB) degradation reaction. The results showed that the particles with higher porosity displayed a higher catalytic performance, which was indicated by a larger first-order reaction constant (κ) and an improved degradation efficiency (η). Moreover, the magnetization of the particles could be used for the magnetic separation of catalysts after reactions.
Journal Title: Ceramics International
Year Published: 2017
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