氧化石墨烯/二氧化钛/酸解纤维素复合材料的制备及其在印染废水处理中的应用  

PREPARATION OF GRAPHENE OXIDE/TITANIUM DIOXIDE/CELLULOSE COMPOSITE AND ITS APPLICATION IN DYE WASTEWATER TREATMENT

作　　者：曾安然[1] 曾安蓉[1] 陈汝盼[1] Zeng Anran;Zeng Anrong;Chen Rupan(School of New Materials and Shoes & Clothing Engineering, Liming Vocational University, Quanzhou 362000, Fujian, China)

机构地区：[1]黎明职业大学新材料与鞋服工程学院,福建泉州362000

出　　处：《精细石油化工》2021年第4期38-43,共6页Speciality Petrochemicals

基　　金：黎明职业大学资助项目(LZ2019101)。

摘　　要：为提高光催化剂对印染废水的处理效果,制备了氧化石墨烯(GO)/二氧化钛(TiO_(2))/酸解纤维素(CE)复合材料并对其结构和性能进行测试。结果表明,GO/TiO_(2)/CE三者交叉分散,分布均匀,具有比TiO_(2)更小的禁带宽度,可见光吸收强度和催化活性明显提高。以氙气灯为光源,考察GO/TiO_(2)/CE对亚甲基蓝(MB)、甲基橙(MO)、六价铬离子(Cr(Ⅵ))的处理效果。结果表明,GO/TiO_(2)/CE的吸附和光催化反应是协同并进的过程,对MB、MO和Cr(Ⅵ)最高处理效率分别达99.9%、98.8%和90.0%。To improve the treatment effect of photocatalyst on dyeing waste water,Titania-loaded graphene oxide and cellulose composites(GO/TiO_(2)/CE)were prepared and characterized.Results shown that GO/TiO_(2)/CE was cross-dispersed and uniform distribution,with smaller band gap.GO/TiO_(2)/CE has higher visible light absorption intensity and catalytic activity.In xenon lamp radiation,the treatment effect of GO/TiO_(2)/CE for MO,MB and Cr(Ⅵ)in water was tested.The results showed that the adsorption and photocatalytic reaction of GO/TiO_(2)/CE was synergistic process,and the maximum reduction rate of MB,MO and Cr(Ⅵ)was 99.9%,98.8%and 90.0%.

关 键 词：氧化石墨烯 酸解纤维素 二氧化钛 吸附光催化作用 有机染料 六价铬离子 

分 类 号：TB33[一般工业技术—材料科学与工程] O643[理学—物理化学]