TiO_2/竹炭复合材料处理废水中的罗丹明B  

Removal of Rhodamine B in Wastewater by TiO_2/Bamboo Charcoal Composite

作　　者：张秀华[1] 周云龙[1] 胡志彪[1] 张著森[1] 钟玲[1] 

机构地区：[1]龙岩学院,福建龙岩364012

出　　处：《广州化工》2011年第21期41-43,共3页GuangZhou Chemical Industry

基　　金：福建省青年人才项目(2007F3076);福建省教育厅A类项目资助(JA07173);福建省教育厅A类科技项目(JA08230)

摘　　要：以竹炭为载体,钛酸四正丁酯为钛源,通过溶胶-凝胶法制备TiO2/竹炭复合材料,研究材料对罗丹明B溶液的暗室吸附规律和光降解性能。实验结果表明:材料对罗丹明B的吸附属于物理吸附,能较好地符合Freundlich吸附等温模型;材料对罗丹明B的降解率高,且随溶液pH的变化而有明显改变。此光催化反应可用一级反应动力学方程进行描述。TiO2/bamboo charcoal composite was prepared by sol-gel technique with tetra-n-butyl tinanate as the titanium source,and bamboo charcoal as the support.The adsorption behavior and the photocatalytic degradation processes of Rhodamine B were studied.The results indicated that the adsorption of Rhodamine B on the composites was physical adsorption and adsorption law of Rhodamine B on the composites fits in well with Freundlich model.The photocatalytic degradation here fit in with the first-order kinetic order.

关 键 词：TIO2 竹炭 罗丹明B 吸附 

分 类 号：O614.121[理学—无机化学]