N-十六烷基马来酰胺酸根合镧改性PVC制备及其吸附性  

Preparation and adsorption properties of PVC modified by N-hexadecylmaleic acid radical and lanthanum

作　　者：张钰航 梁耀东[1] 贺拥军[1] 冯琳 韩帅 ZHANG Yu-hang;LIANG Yao-dong;HE Yong-jun;FENG Lin;HAN Shuai(College of Chemistry and Chemical Engineering of Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]西安科技大学化学与化工学院,陕西西安710054

出　　处：《应用化工》2018年第11期2340-2345,共6页Applied Chemical Industry

基　　金：国家自然科学基金资助(50572088)

摘　　要：以十六胺、顺丁烯二酸酐、硝酸镧和PVC为原材料,通过恒温水浴法和恒温加热法制备N-十六烷基马来酰胺酸根合镧/PVC(HL/PVC)复合材料。考察了p H值、初始染料浓度和吸附温度等对甲基橙溶液去除率的影响。结果表明,当0. 1 g HL/PVC、10 mg/L甲基橙、溶液p H=3. 50和吸附温度30℃时,HL/PVC复合材料对甲基橙去除率为92. 99%; HL/PVC对甲基橙的吸附过程是自发进行的吸热过程,且符合Langmuir和Dubinin-Redushckevich(D-R)吸附模型; HL/PVC对甲基橙的吸附行为符合假二级动力学模型。The complex of N-hexadecylmaleic acid radical and lanthanum/PVC(HL/PVC)was synthesized with hexadecyl amine,maleic anhydride,lanthanum nitrate and PVC as raw materials by constant temperature water bath and constant temperature heating.The effect of pH value,initial dye concentration and adsorption temperature on the removal rate of methyl orange was investigated.The results show that when the dosage of HL/PVC is 0.1 g,the concentration of methyl orange of 10 mg/L,the pH value of the solution of 3.50,and the adsorption temperature of 30℃,the removal rate of HL/PVC composite for methyl orange solution was 92.99%;The adsorption process of methyl orange was in accord with the Langmuir and Dubinin-Radushkevich(D-R)isotherm equations,and it was an endothermic process and could proceed spontaneously;The adsorption behavior of HL/PVC for methyl orange fitted well with the pesudo-second-order kinetic model.

关 键 词：PVC 改性 去除率 甲基橙 

分 类 号：TQ032.41[化学工程] TE626.21[石油与天然气工程—油气加工工程]