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Indexed by:期刊论文

Date of Publication:2016-03-15

Journal:MICROPOROUS AND MESOPOROUS MATERIALS

Included Journals:SCIE、EI

Volume:223

Page Number:27-34

ISSN No.:1387-1811

Key Words:Alumina; Hollow microspheres; Sacrificial templates method; Adsorption

Abstract:Al2O3 hollow microspheres with hierarchical pores have been synthesized via a novel sacrificial template process with further calcinations, in which CaMg(CO3)(2) microspheres were used as sacrificial templates, and Al(NO3)center dot 9H(2)O was used as aluminum source. The route is facile and promising to use in preparation of other metal oxides. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), thermogravimetry analysis (TGA), and N-2 adsorption/desorption. The Al2O3 hollow microspheres samples showed superior adsorption performance, including rapid adsorption rate, excellent adsorption capacity and good reusability for removal of Congo Red from aqueous solution, which made them attractive in environmental remediation. (C) 2015 Elsevier Inc. All rights reserved.