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A template-free method for the synthesis of porous alumina with superhigh specific surface area and large pore volume


Indexed by:Journal Papers

First Author:Zhu, Peihan

Correspondence Author:Tian, P; Ning, GL (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, Sch Chem Engn, Dalian 116024, Peoples R China.

Co-author:Tian, Peng,Liu, Yuanli,Pang, Hongchang,Gong, Weitao,Ye, Junwei,Ning, Guiling

Date of Publication:2019-01-15


Included Journals:SCIE、EI


ISSN No.:1387-1811

Key Words:Porous alumina; Template-free method; Thermal stability; Adsorption

Abstract:This work demonstrates a facile organic-free and template-free approach for synthesizing spindle-like alumina with large pore volume and high specific surface area via a gas-liquid interfacial method followed by calcination. The influences of different calcination temperatures on the porous alumina were systematically studied. The possible formation mechanism of the spindle-like structures was also investigated. The results exhibited that the as-obtained amorphous alumina calcined at 300 degrees C had superhigh surface areas (up to 853 m(2)/g). Furthermore, the adsorption performance of the as-prepared amorphous alumina with high surface area was also evaluated. This spindle-like amorphous alumina showed an excellent adsorption capacity (3284 mg/g) for the removal of Congo red from aqueous solution, which indicate this porous alumina may have great potential applications in adsorption and other related areas.

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