Journal of Hebei University of Science and Technology | |
Preparation and visible-light photocatalytic performances of cyclized polyacrylonitrile/TiO2 nanocomposites | |
Li XU1  Peng WANG1  Lin WANG1  Desong WANG1  Qingzhi LUO1  Xiaojing WANG1  | |
[1] School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China; | |
关键词: catalytic chemistry; TiO2; polyacrylonitrile; sol-gel method; photocatalytic degradation; modification; | |
DOI : 10.7535/hbkd.2015yx05007 | |
来源: DOAJ |
【 摘 要 】
TiO2 nanomaterials were prepared by a conventional sol-gel method with tetrabutyl titanate as Ti source. The polyacrylonitrile solution with dimethyl sulfoxide as solvent was added into TiO2 sols to form TiO2 gels containing polyacrylonitrile, then the as-prepared TiO2 gels were heat-treated to prepare cyclized polyacrylonitrile/TiO2 (CPAN/TiO2) nanocomposites. The CPAN/TiO2 nanocomposites were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-vis diffuse reflection spectroscopy (DRS) and photoluminescence spectroscopy (PL). The visible-light photocatalytic performances of CPAN/TiO2 nanocomposites were investigated by evaluating the decomposition of methyl orange. The results reveal CPAN/TiO2 nanocomposites exhibit excellent visible-light photocatalytic acitivity and stability, and show the highest visible-light photocatalytic activity when the mass ratio of CPAN to TiO2, heat-treatment temperature and time are 1∶300, 270 ℃ and 1 h, respectively.
【 授权许可】
Unknown