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Preparation and characterization of Pd/Fe bimetallic nanoparticles immobilized on Al2O3/PVDF membrane: Parameter optimization and dechlorination of dichloroacetic acid.
Zhang, Lijuan; Meng, Zhaohong; Zang, Shuying.
Afiliação
  • Zhang L; Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Heilongjiang Province, Harbin Normal University, Harbin 150025, China. Electronic address: zlj19650205@163.com.
  • Meng Z; Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Heilongjiang Province, Harbin Normal University, Harbin 150025, China. Electronic address: mengzhaohong1973@163.com.
  • Zang S; Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Heilongjiang Province, Harbin Normal University, Harbin 150025, China.
J Environ Sci (China) ; 31: 194-202, 2015 May 01.
Article em En | MEDLINE | ID: mdl-25968273
ABSTRACT
Using a liquid-solid phase inversion method, a hybrid matrix poly(vinylidene fluoride) (PVDF) membrane was prepared with alumina (Al2O3) nanoparticle addition. Pd/Fe nanoparticles (NPs) were successfully immobilized on the Al2O3/PVDF membrane, which was characterized by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The micrographs showed that the Pd/Fe NPs were dispersed homogeneously. Several important experimental parameters were optimized, including the mechanical properties, contact angle and surface area of Al2O3/PVDF composite membranes with different Al2O3 contents. At the same time, the ferrous ion concentration and the effect of hydrophilization were studied. The results showed that the modified Al2O3/PVDF membrane functioned well as a support. The Al2O3/PVDF membrane with immobilized Pd/Fe NPs exhibited high efficiency in terms of dichloroacetic acid (DCAA) dechlorination. Additionally, a reaction pathway for DCAA dechlorination by Pd/Fe NPs immobilized on the Al2O3/PVDF membrane system was proposed.
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Texto completo: 1 Bases de dados: MEDLINE Assunto principal: Paládio / Polivinil / Nanopartículas Metálicas / Óxido de Alumínio / Ferro Idioma: En Revista: J Environ Sci (China) Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2015 Tipo de documento: Article

Texto completo: 1 Bases de dados: MEDLINE Assunto principal: Paládio / Polivinil / Nanopartículas Metálicas / Óxido de Alumínio / Ferro Idioma: En Revista: J Environ Sci (China) Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2015 Tipo de documento: Article