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Abstract A high efficiency photocatalyst, TiO2(B)/anatase spheres consisted of nanosheets were prepared. Thioglycolic acid (TGA) was added into the precursor to control the hydrolysis process of titanium source (TiCl3), which… Click to show full abstract
Abstract A high efficiency photocatalyst, TiO2(B)/anatase spheres consisted of nanosheets were prepared. Thioglycolic acid (TGA) was added into the precursor to control the hydrolysis process of titanium source (TiCl3), which is a key to adjust the microstructure of products. The results indicated that TGA-modified samples revealed enhanced photocatalysis performance compared with the one without TGA. The photocatalysis performance of TGA-modified sample is about 15 times high compared with commercial P25. This is ascribed to mixed crystal phase and lattice distortion which resulted in more activity sites (e.g. Ti3+ and oxygen defects). The loading of Au nanoparticles in different ways confirms that rich Ti3+-oxygen vacancies on the surface of samples caused super photocatalytic performance.
Journal Title: Journal of Alloys and Compounds
Year Published: 2019
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