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论文类型：期刊论文

发表时间：2016-03-15

发表刊物：MICROPOROUS AND MESOPOROUS MATERIALS

收录刊物：SCIE、EI

卷号：223

页面范围：27-34

ISSN号：1387-1811

关键字：Alumina; Hollow microspheres; Sacrificial templates method; Adsorption

摘要：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.