文献类型：期刊文献

中文题名：以酚醛树脂为碳源的碳改性TiO_2可见光光催化剂

英文题名：Carbon-Modified TiO_2 Visible Light Photocatalyst Prepared Using Phenolic Resin as Carbon Source

作者：陈立静[1];王婷[1];陈锋[1];张金龙[1]

机构：[1]华东理工大学精细化工研究所结构可控先进功能材料及其制备教育部重点实验室,上海200237

年份：2011

卷号：32

期号：4

起止页码：699

中文期刊名：催化学报

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：This work was supported by the National Natural Science Foundation of China (20777015) and the Fundamental Research Funds for the Central Universities.

语种：中文

中文关键词：二氧化钛;酚醛树脂;碳改性;光催化;可见光

外文关键词：titania; phenolic resin; carbon modification; photocatalysis; visible light

摘要：以合成的水溶性酚醛树脂(PF)和TiO2为原料,在N2气氛下焙烧制备了碳改性TiO2催化剂PF/TiO2,并采用X射线衍射、扫描电子显微镜、X射线光电子能谱和紫外-可见漫反射吸收光谱对样品进行了表征.结果表明,PF/TiO2催化剂具有和原料TiO2相同的晶相和形貌,且在可见光区产生明显的吸收.另外,在样品表面存在Cn,C-OH(C-O-C)和C=O(COO)物种,表明其表面存在石墨C材料.这证实沉积在TiO2表面的PF在焙烧过程中发生了碳化.以甲基橙为模型污染物,在可见光下评价了PF/TiO2的光催化性能,发现PF/TiO2的光催化剂活性大大高于TiO2.当PF用量为2%时,PF/TiO2中碳含量为1.33%,此时催化剂的可见光光催化活性最高.
A carbon-modified titanium dioxide photocatalyst,PF/TiO2,was prepared by calcining self-prepared phenolic resin （PF） and TiO2 in N2 atmosphere.The as-prepared PF/TiO2 samples were characterized by X-ray diffraction,scanning electron microscopy,X-ray photoelectron spectroscopy （XPS）,and UV-Vis diffuse reflectance spectroscopy.PF/TiO2 has similar crystal phase and morphology to raw TiO2 and has significant absorption in the visible region.The XPS observed the presence of Cn,C-OH（C-O-C）,and C=O（COO） species,which confirms that there is graphite carbonaceous matter on the surface of PF/TiO2.During the calcination,the phenolic resin on the surface of PF/TiO2 has been carbonized.The photocatalytic performance of PF/TiO2 under visible light was evaluated by the degradation of methyl orange.The photocatalytic activity of PF/TiO2 is greatly higher than that of bare TiO2.The PF dosage for preparing PF/TiO2 with the highest visible light photocatalytic activity is 2%,corresponding to a carbonaceous matter content of 1.33% in PF/TiO2.