活性炭纤维对贵金属的吸附  

ADSORPTION FOR NOBLE METALS OF ACTIVATED CARBON FIBRE

作　　者：曾戎[1] 岳中仁[1] 曾汉民[1] 

机构地区：[1]中山大学聚合物复合材料及功能材料国家教委开放研究实验室

出　　处：《材料研究学报》1998年第2期203-206,共4页Chinese Journal of Materials Research

摘　　要：活性炭纤维（ACF）具有优越的氧化还原吸附特性，通过创麻基活性炭纤维（水蒸气活化和磷酸化学活化）与硝酸银溶液反应而将银引入纤维中，X射线衍射分析表明ACF上负载的都是纳米银热处理可使它们的畸变减小且在高于150℃时才长大此外，用其它基体的ACF也可还原吸附贵金属离子（Au+、Pt4+、Pd2＋）。SACFH (sisal hemp-based ACF activated with H2O) and SACFP (sisal hemp-based ACF activated with H3PO4) were uped to adsorb directly different content metal silver from AgNO3 solution by means of reduction adsorption. The result of X-ray diffraction indicated that the crystal-size of all silver particles adsorbed on SACF is nanoscale, and their lattice distortion decreased with thermal treatment and their crystal-size increased above 150℃. The crystal-size of noble metal (Ag, Au, Pd,Pt) particles adsorbed on difFerent precursor ACFs is nanoscale too. This result had a great theoretic and practical value.

关 键 词：活性炭纤维 复合材料 贵金属 吸附 纳米粒子 

分 类 号：O647.3[理学—物理化学] TB333[理学—化学]