铜负载聚酰亚胺光-芬顿降解甲基橙研究  

Study on photo-Fenton catalyzed degradation of methyl orange with copper supported polyimide catalyst

作　　者：孟祥浩 张科 王立芳 崔咏梅[1] 冯树波[1] MENG Xiang-hao;ZHANG Ke;WANG Li-fang;CUI Yong-mei;FENG Shu-bo(College of Chemical and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Shijiazhuang Hope Technology Co.,Ltd.,Shijiazhuang 050032,China)

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]石家庄昊普科技有限公司,河北石家庄050032

出　　处：《化学研究与应用》2023年第9期2081-2091,共11页Chemical Research and Application

摘　　要：采用尿素-氯化胆碱DES辅助制备了铜负载的聚酰亚胺催化剂,并将其应用于光-芬顿降解甲基橙染料。其中,尿素-氯化胆碱DES可作为溶剂和去质子化试剂,使得铜能更好地负载到聚酰亚胺上。同时,通过SEM、XRD、红外光谱、EDS、TEM、XPS等手段对催化材料进行了表征,验证了铜的负载。进一步探究了催化剂用量、H_(2)O_(2)用量、pH、光照强度、初始浓度等条件对最终降解效率的影响,通过正交试验对实验条件进一步优化,得出甲基橙初始浓度为10 mg·L^(-1)、pH=3、光照强度500 W、H_(2)O_(2)加量0.15 mL、催化剂用量为0.15 g时,可达到甲基橙的几乎完全降解。Copper supported polyimide catalyst was prepared by urea choline chloride DES,and was applied to photo Fenton degra-dation of methyl orange dye.Among them,urea choline chloride DES could be used as solvent and deprotonation reagent,which made copper better loaded on polyimide.At the same time,the catalytic materials were characterized by SEMXRD、IR、EDS、TEM and XPS,the copper loading was verified.The effects of catalyst amount,H_(2)O_(2) amount,pH,light intensity,initial concentration and other conditions on the final degradation efficiency were further explored.The conditions were further optimized through orthogonal tests.It was concluded that when the initial concentration of methyl orange was 10 mg·L^(-1),pH=3,light intensity was 500 w,H_(2)O_(2) dosage was 0.15 mL,and the catalyst amount was 0.15 g,the complete degradation of methyl orange could be achieved.

关 键 词：尿素-氯化胆碱DES 铜负载 聚酰亚胺 光芬顿 甲基橙 

分 类 号：O643.36[理学—物理化学]