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论文类型：期刊论文

第一作者：Sun, Pengbo

通讯作者：Tao, SY (reprint author), Dalian Univ Technol, Sch Chem Engn, Dept Chem, Dalian 116024, Peoples R China.

合写作者：Zhang, Lijing,Tao, Shengyang

发表时间：2019-07-05

发表刊物：MATERIALS & DESIGN

收录刊物：SCIE、EI

卷号：173

ISSN号：0264-1275

关键字：Laser sintering; Chitosan membrane; Adsorption; Reduction p-nitrophenol

摘要：The processing method of natural polymers is one of the critical factors affecting their application. As commonly used biomass, chitosan was usually shaped by a wet chemical method which dissolves chitosan in a solvent and then fabricated into the membrane, fiber or other forms. This process often needs a large number of solvents and acids, which are harmful to the environment. In this paper, we mixed chitosan powder and thermoplastic polyurethane to form membrane by selective laser sintering. This method has advantages of simple operation, fast membrane formation, and low preparation cost. No solvents were applied in the whole progress. The hybrid membrane had an adsorption performance for heavy metal ions, the maximum adsorption capacities to Cu(II) and Pb(II) reached 19.6 mg g(-1) and 30.4 mg g(-1), respectively. Palladium ions could also be adsorbed by the membrane to form palladium-loaded composite materials, which could be used as a catalyst for reducing p-nitrophenol, and the conversion rate could reach 96% in 20 min. (C) 2019 Published by Elsevier Ltd.