Bismuth oxychloride hollow microspheres with high visible light photocatalytic activity

Cui, Pengzhen and Wang, Jiali and Wang, Zumin and Chen, Jun and Xing, Xianran and Wang, Lianzhou and Yu, Ranbo (2016) Bismuth oxychloride hollow microspheres with high visible light photocatalytic activity. Nano Research, 9 (3). pp. 593-601. ISSN 1998-0124

Abstract

Hollow microspheres of two bismuth oxychlorides, BiOCl and Bi24O31Cl10, were successfully synthesized using carbonaceous microsphere sacrificial templates. The phase evolution from BiOCl to Bi24O31Cl10 was easily realized by heating the former at 600 °C. With a uniform diameter of about 200 nm, an average shell thickness of 40 nm, and basic nanosheets of <20 nm, the hollow microspheres of both BiOCl and Bi24O31Cl10 showed high visible light photocatalytic activity towards the degradation of Rhodamine B (RhB). Besides the effective photosensitization process and efficient photointroduced carrier separation, the high photocatalytic activity was believed to result from their hollow-structure-dependent large visible light absorption. Moreover, as a chlorine-deficient analogue, the Bi24O31Cl10 hollow spheres possessed a narrower band gap, more dispersive band structure, and higher photocarrier conversion efficiency, which further helped them to exhibit better photocatalytic activity. [Figure not available: see fulltext.]


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 14 Jun 2017 01:01
Last Modified: 14 Jun 2017 01:01
Uncontrolled Keywords: bismuth oxychloride; hollow spheres; nanosturctures; visible light photocatalysis; Bismuth oxychloride; High photocatalytic activities; Hollow sphere; nanosturctures; Photocatalytic activities; Visible light absorption; Visible light photocatalytic activity; Visible-light photocatalysis;
Fields of Research : 10 Technology > 1007 Nanotechnology > 100799 Nanotechnology not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970110 Expanding Knowledge in Technology
Identification Number or DOI: 10.1007/s12274-015-0939-z
URI: http://eprints.usq.edu.au/id/eprint/31920

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