A zinc titanate-based floatable composite for photocatalytic degradation of azophloxine

IF 2.3 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS Journal of Sol-Gel Science and Technology Pub Date : 2024-11-23 DOI:10.1007/s10971-024-06626-z

Shuai Zhang, Wenjie Zhang, Minghua Wang

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Abstract

Zinc titanate was loaded onto expanded perlite (EP) by a sol-gel method to obtain a floatable ZnTiO₃/EP composite photocatalyst. The 28%ZnTiO₃/EP particles were well dispersed in water under gentle stirring, and they were also easily collected on the top of the treated water. ZnTiO₃ crystals in the ZnTiO₃ and 28%ZnTiO₃/EP samples were 43.5 and 38.5 nm in size, respectively. The bandgap energies of ZnTiO₃ and 28%ZnTiO₃/EP were determined to be 3.96 and 3.69 eV, respectively. EP contained large pores in the size of several micrometers, but it did not have small pores. The specific surface area of 28%ZnTiO₃/EP was determined to be 1.11 m²/g. The azophloxine degradation efficiencies of ZnTiO₃ and 28%ZnTiO₃/EP after 30 min of irradiation were determined to be 100 and 34.7%, respectively. A total of 94.8% of the azophloxine molecules were degraded on 28%ZnTiO₃/EP after 100 min of reaction.

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来源期刊

Journal of Sol-Gel Science and Technology 工程技术-材料科学：硅酸盐

CiteScore

4.70

自引率

4.00%

发文量

280

审稿时长

2.1 months

期刊介绍： The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.