S-Doped Sb2O3 Nanocrystal: an Efficient Visible-Light Catalyst for Organic Degradation

Hun Xue; Xinyi Lin; Qinghua Chen; Qingrong Qian; Suying Lin; Xiaoyan Zhang; Da-Peng Yang; Liren Xiao

doi:10.1186/s11671-018-2522-5

S-Doped Sb₂O₃ Nanocrystal: an Efficient Visible-Light Catalyst for Organic Degradation

Nanoscale Res Lett. 2018 Apr 23;13(1):114. doi: 10.1186/s11671-018-2522-5.

Authors

Hun Xue^{1

2}, Xinyi Lin¹, Qinghua Chen¹, Qingrong Qian¹, Suying Lin^{3

2}, Xiaoyan Zhang³, Da-Peng Yang⁴, Liren Xiao⁵

Affiliations

¹ Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, 350007, China.
² Fujian Provincial Key Laboratory of Ecology-toxicological Effects & Control for Emerging Contaminants, Putian University, Putian, 351100, China.
³ College of Chemical Engineering and Materials Sciences, Quanzhou Normal University, Quanzhou, 362000, China.
⁴ College of Chemical Engineering and Materials Sciences, Quanzhou Normal University, Quanzhou, 362000, China. yangdp@qztc.edu.cn.
⁵ Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, 350007, China. xlr1966@126.com.

Abstract

The S-doped Sb₂O₃ nanocrystals were successfully synthesized using SbCl₃ and thioacetamide (TAA) as precursors via a facile one-step hydrothermal method. The effects of pH of the precursor reaction solution on the product composition and property were determined. The results indicated that the doping amount of S could be tuned by adjusting the pH of the precursor solution. Furthermore, the S entered into the interstitial site of Sb₂O₃ crystals as S^2-, which broadened the absorption wavelength range of the Sb₂O₃ nanocrystal. The S-doped Sb₂O₃ exhibited an excellent visible-light-driven photocatalytic activity in the decomposition of methyl orange and 4-phenylazophenol. Last, a possible photocatalytic mechanism of the S-doped Sb₂O₃ under visible light irradiation was proposed.

Keywords: Hydrothermal synthesis; Organic degradation; Photocatalysis; S-doped Sb2O3; Visible light.

Abstract

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