Facile synthesis and photocatalytic application of hierarchical mesoporous Bi2MoO6 nanosheet-based microspheres

Changsheng Guo; Jian Xu; Shanfeng Wang; Lei Li; Yuan Zhang; Xiaochen Li

doi:10.1039/C2CE06757A

Facile synthesis and photocatalytic application of hierarchical mesoporous Bi₂MoO₆ nanosheet-based microspheres

Changsheng Guo,^a Jian Xu,*^a Shanfeng Wang,^a^b Lei Li,^a Yuan Zhang^a and Xiaochen Li^b

* Corresponding authors

^a State Key Laboratory of Environmental Criteria and Risk Assessment, and Laboratory of Riverine Ecological Conservation and Technology, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
E-mail: xujian@craes.org.cn
Fax: +86-10-84913910
Tel: +86-10-84915237

^b Water Conservancy and Civil Engineering College, Shandong Agricultural University, Shandong, PR China

Abstract

In this study, mesoporous aurivillius bismuth molybdenum oxide (Bi₂MoO₆) (A-BMO) microspheres were fabricated via a template-free solvothermal process in the presence of ethylene glycol. The as-prepared Bi₂MoO₆ products were characterized by X-ray diffraction, scanning electron microscopy, UV–vis diffuse reflectance spectroscopy and nitrogen adsorption–desorption techniques, respectively. Results showed that the synthesized Bi₂MoO₆ microspheres were composed of nanosheets, with diameters of 0.5–1.0 μm, specific surface areas of about 50.86 m² g⁻¹, and a band gap energy of about 2.59 eV. The photocatalytic activity of the Bi₂MoO₆ microspheres was evaluated in the decomposition of rhodamine B (RhB) under xenon lamp irradiation. The A-BMO showed superior performance for the photodegradation of RhB, in comparison to the commercial P25 in the H₂O₂-containing system. The sedimentation, stability and recycling performance of the prepared A-BMO catalysts were also investigated. This study provided new insights into the design and preparation of functional nanomaterials with sphere structures in high yields, and the as-grown architectures exhibited potential ability to remove organic pollutants in wastewater.

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Publication details

The article was received on 31 Dec 2011, accepted on 23 Feb 2012 and first published on 29 Feb 2012

Article type: Paper

DOI: 10.1039/C2CE06757A

Citation: CrystEngComm, 2012,14, 3602-3608

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Facile synthesis and photocatalytic application of hierarchical mesoporous Bi₂MoO₆ nanosheet-based microspheres

C. Guo, J. Xu, S. Wang, L. Li, Y. Zhang and X. Li, CrystEngComm, 2012, 14, 3602
DOI: 10.1039/C2CE06757A
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CrystEngComm

Facile synthesis and photocatalytic application of hierarchical mesoporous Bi₂MoO₆ nanosheet-based microspheres

Abstract

Supplementary files

Publication details

Facile synthesis and photocatalytic application of hierarchical mesoporous Bi₂MoO₆ nanosheet-based microspheres

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