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author:

Xue, H. (Xue, H..) [1] | Li, Z. (Li, Z..) [2] | Dong, H. (Dong, H..) [3] | Wu, L. (Wu, L..) [4] | Wang, X. (Wang, X..) [5] | Fu, X. (Fu, X..) [6]

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Abstract:

In the presence of the surfactant cetyltrimethyl ammonium bromide (CTAB) or poly (vinyl pyrrolidone) (PVP), different three-dimensional (3D) hierarchical flowerlike architectures of Sr2Sb2O7 (Sr 2Sb2O7 (CTAB) and Sr 2Sb2O7 (PVP)) were successfully synthesized via a facile hydrothermal process using Sb2O5 as the starting material. The obtained samples were characterized by X-ray diffraction (XRD), N2-sorption BET surface area, UV-vis diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and Fourier transformation infrared spectroscopy (FT-IR). The formation mechanisms for Sr2Sb2O7 (CTAB) and Sr2Sb2O7 (PVP) were proposed. Both Sr2Sb2O7 (CTAB) and Sr 2Sb2O7 (PVP) show obvious photocatalytic activity for the decomposition of salicylic acid under UV light illumination. Sr2Sb2O7 (PVP) shows the best photocatalytic activity for the degradation of salicylic acid due to its higher band gap energy and larger BET specific surface area. Compared to samples prepared without the surfactant, both Sr2Sb2O 7 (CTAB) and Sr2Sb2O7 (PVP) can be more readily separated from the slurry system by filtration or sedimentation after the photocatalytic reaction and reused. This makes them ideal photocatalysts for aqueous phase photocatalytic reactions. © 2008 American Chemical Society.

Keyword:

Community:

  • [ 1 ] [Xue, H.]Research Institute of Photocatalysis, Fuzhou University, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou 350002, China
  • [ 2 ] [Li, Z.]Research Institute of Photocatalysis, Fuzhou University, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou 350002, China
  • [ 3 ] [Dong, H.]Research Institute of Photocatalysis, Fuzhou University, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou 350002, China
  • [ 4 ] [Wu, L.]Research Institute of Photocatalysis, Fuzhou University, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou 350002, China
  • [ 5 ] [Wang, X.]Research Institute of Photocatalysis, Fuzhou University, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou 350002, China
  • [ 6 ] [Fu, X.]Research Institute of Photocatalysis, Fuzhou University, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou 350002, China

Reprint 's Address:

  • [Li, Z.]Research Institute of Photocatalysis, Fuzhou University, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou 350002, China

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Source :

Crystal Growth and Design

ISSN: 1528-7483

Year: 2008

Issue: 12

Volume: 8

Page: 4469-4475

Language: English

4 . 2 1 5

JCR@2008

3 . 2 0 0

JCR@2023

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 0

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