NDLI: Rapid adsorption and photocatalytic activity for Rhodamine B and Cr(vi) by ultrathin BiOI nanosheets with highly exposed {001} facets

Content Provider	Royal Society of Chemistry (RSC)
Author	Han, Juanli Ge, Bao Hojamberdiev, Mirabbos Zhu, Gangqiang Liu, Peng Zhang, Xi Liu, Yun Peng, Jianhong
Copyright Year	2015
Abstract	Porous BiOI microspheres composed of ultrathin nanosheets were successfully fabricated using a simple solvothermal method, and subsequently characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflection spectroscopy (UV-vis), X-ray photoelectron spectroscopy (XPS) and Brunauer–Emmett–Teller surface area (BET) measurements. High-resolution transmission electron microscopy (HRTEM) results show that the typical characteristics of nanosheets were mainly within the dominant exposed {001} facets. The BiOI samples obtained exhibit rapid adsorption and photocatalytic activity for the cationic organic dye Rhodamine B (RhB) and the heavy metal ion, Cr(VI), under irradiation with visible light, which is mainly ascribed to their high degree of crystallization, highly exposed {001} facets, unique mesoporous structures, relatively large effective specific surface area (∼77.22 m2 g−1) and appropriate energy band gap (1.81 eV). Moreover, the adsorption process for RhB and Cr(VI) with the as-prepared BiOI microspheres was also analyzed by pseudo-second-order kinetic model.
Starting Page	1874
Ending Page	1882
Page Count	9
File Format	HTM / HTML PDF
ISSN	11440546
Volume Number	39
Issue Number	3
Journal	New Journal of Chemistry
DOI	10.1039/c4nj01765j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy Diffuse reflection High-resolution transmission electron microscopy Electronvolt Ion Specific surface area Powder diffraction Photoemission spectroscopy Scanning electron microscope Heavy metals X-ray crystallography Emmett Dye Mesoporous material Transmission electron microscopy Adsorption Rhodamine B Band gap Brunauer X-ray photoelectron spectroscopy
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Catalysis

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