TiO_2插层氧化石墨烯PAN纳米纤维降解活性大红性能研究

Photocatalytic Performance of TiO_2-Intercalated Graphene Oxide Embedded PAN Nanofibers Toward Reactive Red

以氧化石墨烯为载体,通过原位生成的方式制备TiO_2插层氧化石墨烯,并以PAN为成纤载体、DMF为溶剂,采用静电纺丝法制备TiO_2插层氧化石墨烯PAN纳米纤维;通过透射电镜(TEM)、紫外可见光光谱(UV)、X-射线衍射(XRD)、热重分析(TG)等手法对TiO_2插层氧化石墨烯及TiO_2插层氧化石墨烯PAN纳米纤维的形貌、结构进行表征分析;研究了含不同TiO_2插层氧化石墨烯PAN纳米纤维光催化降解活性大红的性能.结果表明:TiO_2插层氧化石墨烯PAN纳米纤维对活性大红有优异的光催化降解性能,且随着TiO_2插层氧化石墨烯含量的增加,完全降解活性大红所需的时间逐渐变短.

With graphene oxide as a support,TiO2-intercalated graphene oxide(TiO2-GO)was prepared by in-situ formation.TiO2-GO embedded PAN nanofibers(TiO2-GO-PAN-NFs)were prepared by electrospinning technology with PAN as the fiber-forming polymer and DMF as the solvent.The morphology of TiO2-GO and TiO2-GO-PAN-NFs were characterized by transmission electron microscopy(TEM),ultraviolet-visible spectra(UV-vis),X-ray diffraction(XRD)and thermogravimetric analysis(TG).The photocatalytic degradation activity of TiO2-GO-PAN-NFs with different TiO2-GO content was studied.The results show that TiO2-GO-PAN-NFs have an excellent photocatalytic degradation property toward reactive red.With the increase of the content of TiO2-GO,the complete degradation time gradually decreases.