Efficient Photocatalytic Degradation of RhB by Constructing Sn3O4 Nanoflakes on Sulfur-Doped NaTaO3 Nanocubes

Abstract

Band structure engineering and heterojunction photocatalyst construction are efficient approaches to improve the separation of photo-induced electrons and holes, along with enhancing light response ability. By sulfur doping, sodium tantalite (NaTaO3) showed an improved photocatalytic property for the degradation of Rhodamine B (RhB). Sn3O4 nanoflakes were constructed on the surface of NaTaO3 nanocubes, forming a surface heterostructure via a simple hydrothermal process, initially. This heterostructure endows the photocatalyst with an enhanced charge separation rate, resulting in an improved photocatalytic degradation of RhB. Moreover, a possible mechanism over Sn3O4/NaTaO3 and the photodegradation pathway of RhB were proposed as the combined effect of photo-induced electrons and holes. This facile process for band structure engineering and heterostructure construction provides the possibility for the practical application of high-efficiency photocatalysts.

Photocatalysis and perovskite oxide-based materials: a remedy for a clean and sustainable future

“…The reported photodegradation of methyl blue is 95.21% by nitrogen-based NaTaO 3 photocatalyst using sunlight as an irradiation source. 175,176 Different perovskite materials used for photocatalytic pollutant degradation are given in Table 2.…”

Vapor Deposition-Assisted Sulfurization Synthesis of S-doped WO3 Nanorods and Their Enhanced Photoactivity

“…It can also be supported by the S-doped NaTaO 3 nanocubes in which doping sulfur anions results in the narrowing of bandgap energy, and the sulfur atoms induce local states in the band structure because of the formation of new hybridized orbitals. 47 Similarity, the S-doped Sb 2 O 3 nanocrystals also show the S doping effect for improving photoactivity. 48 Notably, the SW-2 shows the optimal S content for improving the photoresponse performance; the photoresponse further decreased for the SW-3 with a higher S content.…”

Synthesis of Ag Loaded ZnO/BiOCl with High Photocatalytic Performance for the Removal of Antibiotic Pollutants

“…In order to prevent their large scale accumulation in water, photocatalytic degradation with the help of photocatalysts such as TiO 2 , ZnO, SnO 2 , g-C 3 N 4 , etc., has been carried out in-depth [4][5][6][7][8][9][10][11][12][13][14]. However, most of the photocatalysts are only active under ultraviolet, which comprises a limited portion of the solar spectrum [15][16][17][18][19][20][21][22][23][24]. Therefore, it is necessary to find photocatalysts with good visible light absorption performance.…”