细菌纤维素负载TiO_2复合材料的制备及其在印染废水处理方面的应用  

Preparation of titanium dioxide/bacterial cellulose nanocomposite and its application in treatment of dyeing wastewater

作　　者：张秀菊[1] 陈文彬[1] 林志丹[1] 容建华[1] 

机构地区：[1]暨南大学理工学院材料系,广州510632

出　　处：《化工新型材料》2010年第10期100-103,共4页New Chemical Materials

基　　金：国家自然科学基金(20604010);广东省自然科学基金面上项目(8451063201000041)

摘　　要：利用细菌纤维素超细高强的特点,原位制备细菌纤维素/TiO2纳米复合材料,并对其表面化学组成和微观结构进行表征。利用细菌纤维素负载TiO2纳米粒子用于染料废水的处理,具有处理效果好、可以多次反复使用等优点。结果表明:紫外光催化降解后,复合材料对甲基橙溶液的降解率可达到100%。重复4次降解后,最大降解率仍有51.8%。Because bacterial cellulose presents an ultrafine microstructure and high modulus of elasticity,in-situ bacterial cellulose / titanium dioxide nanocomposite materials for treatment dye wastewater could be synthesized.Its surface constitute and microstructure were characteristed.It also could be used efficiently and repeatedly.The results showed that the degradation rate of methyl orange solution was up to 100% through UV photocatalysis.Composite materials was used repeatedly for four times,the maximum degradation rate was still 51.8%.

关 键 词：细菌纤维素 复合材料 TIO2 染料废水 

分 类 号：X791[环境科学与工程—环境工程]