合成纤维

2016, v.45;No.334(12) 12-17

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细菌纤维素负载金纳米粒子复合膜的制备及催化性能
Research on the Preparation and Catalytic Properties of Bacterial Cellulose-Supported Gold Nanoparticles Composite Membrane

陈燕;陈仕艳;姚晶晶;王宝秀;王华平;
CHEN Yan;CHEN Shi-yan;YAO Jing-jing;WANG Bao-xiu;WANG Hua-ping;State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of HighPerformance Fibers and Products (Ministry of Education), College of Materials Science and Engineering,Donghua University;

摘要(Abstract):

以细菌纤维素(BC)为基底,氯金酸(HAu Cl4)为金前驱体,通过原位还原法制备了BC负载金纳米粒子(Au NPs)复合膜。采用紫外-可见光谱仪、透射电子显微镜、X射线衍射仪、电感耦合等离子发射光谱仪和傅里叶变换红外光谱仪对复合膜的结构和性质进行了表征,并通过对硝基苯酚(4-NP)催化还原反应来评价Au NPs-BC复合催化剂的催化性能。研究结果表明:复合膜上Au NPs的粒径大小为(5.30±1.23)nm,其反应速率常数高达5.09×10-3s-1,Au NPs-BC催化剂表现出优异的催化活性及重复稳定性。
Bacterial cellulose-supported gold nanoparticles(Au NPs) composite membrane was successfullysynthesized in situ by using bacterial cellulose(BC) as support and chloroauric acid(HAu Cl4) as gold precur-sor. The prepared Au NPs- BC composite membrane was characterized by UV- visible spectral analysistransmission electron microscopy, X-ray diffraction, inductively coupled plasma optical emission spectrom-eter and Fourier transform infrared spectrometer. The catalytic properties of Au NPs-BC composite mem-brane was evaluated with the reduction of 4-nitrophenol(4-NP). The results showed that the average size ofthe Au NPs within BC was(5.30±1.23) nm, and the reaction rate constant was 5.09×10-3s-1. The Au NPs-BCcatalyst showed excellent catalytic activity and high stability for reuse property.

关键词(KeyWords): 细菌纤维素;金纳米粒子;原位还原;催化性能;对硝基苯酚
bacterial cellulose;gold nanoparticle;in situ;catalytic property;4-nitrophenol

Abstract:

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基金项目(Foundation): 国家自然科学基金(51573024、51273043)

作者(Author): 陈燕;陈仕艳;姚晶晶;王宝秀;王华平;
CHEN Yan;CHEN Shi-yan;YAO Jing-jing;WANG Bao-xiu;WANG Hua-ping;State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Key Laboratory of HighPerformance Fibers and Products (Ministry of Education), College of Materials Science and Engineering,Donghua University;

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DOI: 10.16090/j.cnki.hcxw.2016.12.005

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