二氧化钛氧化石墨烯复合水凝胶处理间苯二酚胶粘剂废水研究  

Study on treatment of resorcinol adhesive wastewater by composite hydrogel with titanium dioxide and graphene oxide

作　　者：张长飞[1] 祁玲玲 郑凯[1] 李乾军[1] Zhang Changfei;Qi Lingling;Zheng Kai;Li Qianjun(Nanjing Institute of Technology, Nanjing 211167, China)

机构地区：[1]南京工程学院

出　　处：《中国胶粘剂》2019年第7期46-49,共4页China Adhesives

基　　金：国家基金项目(51878334)

摘　　要：通过水热合成法制备二氧化钛氧化石墨烯复合水凝胶(H-TN-rGO),用于间苯二酚胶粘剂废水吸附研究,包括废水的pH、温度、吸附时间和H-TN-rGO投入量等因素对间苯二酚去除率的影响,从而得到适宜的吸附条件。研究结果表明:H-TN-rGO对间苯二酚去除的最佳试验条件是,当H-TN-rGO投入量为14 g/L、pH为7.32、温度为35℃、吸附时间为2.5 h时,间苯二酚去除率高于92%。吸附间苯二酚符合Langmuir吸附模型,其中b=0.67 L/mg,q_m=156.73 mg/g,R^2=0.9912。Composite hydrogel with titanium dioxide and graphene oxide(H-TN-rGO)was prepared by hydrothermal synthesis. It was used to study the adsorption of resorcinol adhesive wastewater,including the effects of wastewater pH,temperature,adsorption time and H-TN-rGO input amount on resorcinol removal rate,so as to obtain appropriate adsorption conditions. The research results showed that the optimum experimental conditions for resorcinol removal by H-TN-rGO were as follows:the removal rate of resorcinol was higher than 92% when the input amount of H-TN-r GO was 14 g/L,the p H was 7.32,the temperature was 35 ℃,and the adsorption time was 2.5 h.The adsorption of resorcinol conformed to Langmuir adsorption model,in which b=0.67 L/mg,qm=156.73 mg/g,R2=0.9912.

关 键 词：间苯二酚胶粘剂废水 石墨烯 纳米二氧化钛 水凝胶 吸附模型 

分 类 号：TQ430.8[化学工程] X793[环境科学与工程—环境工程]