二氧化钛/碳纤维多孔薄膜的制备及催化性能

纺织学报 ›› 2011, Vol. 32 ›› Issue (4): 23-28.

二氧化钛/碳纤维多孔薄膜的制备及催化性能

朱曜峰¹,王艳²,傅雅琴¹

1. 浙江理工大学2. 浙江理工大学材料科学与工程专业

收稿日期:2010-03-22 修回日期:2010-11-03 出版日期:2011-04-15 发布日期:2011-04-15
通讯作者: 傅雅琴

Preparation of TiO2 porous film supported on carbon fiber and its photocatalytic performances

Yan Wang,FU Ya-Qin

Received:2010-03-22 Revised:2010-11-03 Online:2011-04-15 Published:2011-04-15
Contact: FU Ya-Qin

摘要/Abstract

摘要： 以聚乙二醇(PEG)为模板剂，通过溶胶凝胶浸渍涂覆法和烧结法将二氧化钛（TiO2）负载于经表面修饰的碳纤维（CF）上，制备多孔TiO2/CF光催化材料。采用场发射扫描电子显微镜(FE-SEM)、X射线衍射仪（XRD）表征了材料的形貌和晶型结构，研究了TiO2/CF光催化材料对甲基橙溶液的吸附性能，并以80mg/L甲基橙溶液为目标降解物测试了材料在紫外光照下的催化性能。结果表明：PEG模板剂对得到TiO2/CF光催化材料的表面形态和TiO2晶型结构有明显的影响；多孔TiO2/CF光催化材料对偶氮类甲基橙染料的吸附符合准二级动力学方程，且吸附量随PEG分子量的增大而增加；PEG分子量为2000时，可以得到具有良好催化效果的多孔TiO2/CF材料。

Abstract: Titanium dioxide (TiO2) porous films photocatalysts deposited on polyacrylonitile based carbon fiber (PAN-CF) substrates through the sol-gel dip-coating technology and sinter method using polyethylene glycol (PEG) as a template. Field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) were utilized to investigate the morphologies and structures of the TiO2 porous film photocatalyst. The adsorption of methyl orange on the composites was studied and methyl orange (MO, 80mg/L) was used as a model contaminant to investigate the photocatalytic property of the composites under UV irradiation. The study revealed that surface morphology of composites and crystalline structure of titanium dioxide were remarkably influenced by the PEG template. The adsorption kinetic process of TiO2/CF composites to methyl orange solution fitted very well the pseudo-second-order kinetic model, as PEG molecules increased, the adsorption capacity is heightened. The porous TiO2/CF which using PEG2000 as a template displayed excellent catalytic performance.

中图分类号:

TB332

朱曜峰;王艳;傅雅琴. 二氧化钛/碳纤维多孔薄膜的制备及催化性能[J]. 纺织学报, 2011, 32(4): 23-28.

Yan Wang;FU Ya-Qin. Preparation of TiO2 porous film supported on carbon fiber and its photocatalytic performances[J]. JOURNAL OF TEXTILE RESEARCH, 2011, 32(4): 23-28.

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