Ni^(2+)-Fe^(3+)-CO_3^(2-)-LDHs亲油改性及其除油性能研究  

Lipophilic Modification of Ni^(2+)-Fe^(3+)-CO_3^(2-)-LDHs Materials and Study of Its Oil Absorption Properties

作　　者：党睿[1] 马向荣[1] 刘洁莹[1] 白艳霞[1] 张智芳[1] 张宇鑫[1] 钱肃进 

机构地区：[1]榆林学院化学与化工学院,榆林719000

出　　处：《硅酸盐通报》2017年第8期2792-2798,共7页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金项目(51601167);陕西省科技厅项目(2015SF262);陕西省教育厅协同创新;服务地方计划项目(15JF035);榆林学院专项科研计划项目(14YK22)

摘　　要：尿素作为沉淀剂,采用均相沉淀技术制备了Ni^(2+)-Fe^(3+)-CO_3^(2-)-LDHs层状材料。以Ni^(2+)-Fe^(3+)-CO_3^(2-)-LDHs作为前驱体,分别与NaCl、十二烷基磺酸钠(CH_3(CH_2)_(11)SO_3Na)进行离子交换反应得到Ni^(2+)-Fe^(3+)-CH_3(CH_2)_(11)SO_3^--LDHs新型吸附剂材料,成功实现了将CH_3(CH_2)_(11)SO_3^-负载到Ni^(2+)-Fe^(3+)-LDHs层状材料,对Ni^(2+)-Fe^(3+)-CO_3^(2-)-LDHs进行亲油改性,研究表明该改性后的材料为介孔材料,其比表面积为196.2 m^2/g,平均孔径为18.3 nm。利用Ni^(2+)-Fe^(3+)-CH_3(CH_2)_(11)SO_3^--LDHs复合材料对含油污水进行处理,实验表明十二烷基磺酸根离子插层Ni^(2+)-Fe^(3+)-LDHs后的产物增强了LDHs的亲油吸附性能,其饱和吸附量为6.57μL/g。Ni^2＋-Fe^3＋-CO3^2--LDHs was prepared by homogeneous precipitation method. Ni^2＋-Fe^3＋-CH3（ CH2）（11）SO3^--LDHs was successfully synthetized through ion exchange reach with NaCl and dodecyl sulfonic acid（ CH3（ CH2）（11）SO3^-） respectively using Ni^2＋-Fe^3＋-CH3（ CH2）（11）SO3^--LDHs as precursor,which made the CH3（ CH2）（11）SO3^-load to layer spacing of Ni^2＋-Fe^3＋-CO3^2--LDHs. The experimental results show that the Ni^2＋-Fe^3＋-CH3（ CH2）（11）SO3^--LDHs is belonging to mesoporous materials. The BET surface area and average pore of the obtained materials are 196. 2 m^2/g and 18. 3 nm respectively. Ni^2＋-Fe^3＋-CH3（ CH2）11SO3^--LDHs is used as an adsorbent for the treatment of waste containing wastewater.The experiment results indicate that the dodecyl sulfonic acid（ CH3（ CH2）（11）SO3^-） ion insertion product of layer Ni^2＋-Fe^3＋-CO3^2--LDHs enhanced oil adsorption properties and its saturated adsorption capacity is 6. 57 μL/g.

关 键 词：CH3(CH2)11SO3^- Ni^2+-Fe^3+-CO3^2- -LDHs 插层组装 

分 类 号：TQ138.1[化学工程—无机化工] TQ423.1