石墨烯二氧化鈦負(fù)載織物的制備及光催化性研究

1、分類號(hào)：106.6 密級(jí)：UDC：677 學(xué)校代碼： 11065碩士學(xué)位論文石墨烯/二氧化鈦負(fù)載織物的制備及光催化性研究律慧敏指 導(dǎo) 教 師 陳國(guó)華學(xué)科專業(yè)名稱 紡織材料與紡織品設(shè)計(jì)論文答辯日期 2016 年 6 月 3 日AbstractIn this paper, sol-gel method was employed for preparing reduced graphemeoxide (RGO)/titanium dioxid

2、e(TiO2) nanocomposites without any reductants or surf-actants.The synthesis of TiO2 and reduction of graphene oxide(GO) was completedby a simple one-pot heating.TEM、XRD、FT-IR was used to analysis microstruc-ture of these

3、 samples.GO was partly reduced to RGO and antase TiO2 was produc-ed from RGO/ TiO2 nanocomposites.Compared with pure TiO2 nanoparticles,the ab-sorption edges of the RGO/ TiO2 composites show a slight red shift to longer

4、w-avelength,leading an obvious enhanced visible-light absorption.A preferred method was chosen by comparing the photocatalytic effect of RGO/ TiO2 composite fabrics prepared by seven different methods. TiO2 nanoparticles

5、in sample-8 were dispersed uniformly on the RGO sheets indicated by SEM ima-ges.The XPS analysis once again proved that GO attached to cotton fabrics werereduced partly.Photocatalytic of different samples were compared u

6、nder visible li-ght and ultraviolet light,it indicated that photocatalytic effect is better under visiblelight.Study of the influence between paramenters of single factor and photocatalyticproperties of composite fabrics

7、 was did on the base of two-pot method.Processin-g times of GO,the amount of TBOT and HAc,the heating temperature and time w-ere discussed in other cases remains.Optimal parameters were analyzed: 0.015molTBOT,0.1molHAc,9

8、5℃ constant 60min. Composite fabrics treated by GO three ti-mes were tested by XRD.The photocatalytic process was analyzed by adsorption k-inetics equations,and even the maximum capacity was calculated.It conforms to ps-