In situ synthesis of hierarchical flower-like Bi2S 3/BiOCl composite with enhanced visible light photocatalytic activity

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

91 Scopus Citations
View graph of relations

Author(s)

  • Saihua Jiang
  • Keqing Zhou
  • Yongqian Shi
  • Haiyan Xu
  • Yuan Hu
  • Zhou Gui

Detail(s)

Original languageEnglish
Pages (from-to)313-319
Journal / PublicationApplied Surface Science
Volume290
Online published24 Nov 2013
Publication statusPublished - 30 Jan 2014

Abstract

Novel BiOCl micro-flower was synthesized by a facile method and used as a precursor to produce Bi2S3/BiOCl composites. The Bi 2S3/BiOCl composites, synthesized by in situ etching of BiOCl precursor with thiacetamide (TAA) solution, maintain the hierarchical flower-like structure and exhibit a large surface area. X-ray diffraction (XRD), Fourier transform infrared spectrometry (FT-IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), and UV-vis diffuse reflectance spectroscopy (DRS) were employed to study the structures, morphologies and optical properties of the as-prepared samples. Under visible light (λ > 400 nm), the flower-like Bi2S3/BiOCl composite displayed much higher photocatalytic activity than single Bi2S 3, BiOCl and 2D plate-like Bi2S3/BiOCl composite for the degradation of rhodamine B (RhB). The increased photocatalytic activity of Bi2S3/BiOCl could be attributed to the formation of the heterostructure between Bi2S3 and BiOCl and large surface area of the hierarchical structure, which effectively separate the photoinduced electron-hole pairs and suppress their recombination. © 2013 Elsevier B.V.

Research Area(s)

  • Bi2S3/BiOCl composite, Chemical synthesis, Heterojunction, Hierarchical flower-like structure, Photocatalysis

Citation Format(s)

In situ synthesis of hierarchical flower-like Bi2S 3/BiOCl composite with enhanced visible light photocatalytic activity. / Jiang, Saihua; Zhou, Keqing; Shi, Yongqian et al.

In: Applied Surface Science, Vol. 290, 30.01.2014, p. 313-319.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review