表面活性剂@Weakley型稀土多酸复合催化剂对甲基橙的光催化降解活性  

Photocatalytic Degradation Activity of Methyl Orange by Composite Catalysts of Surfantant@Polyoxoanions Weakley Type

作　　者：王斌 王晓红[1] 刘哲林[3] 董哲[1] 王晓晖[1] 段莉梅[1] 许良[1,2] 刘宗瑞 WANG Bin;WANG Xiao-Hong;LIU Zhe-Lin;DONG Zhe;WANG Xiao-Hui;UAN Li-Mei;XU Liang;LIU Zong-Rui(College of Chemistry and Materials Science,Inner Mongolia University for the Nationalities,Tongliao,Inner Mongolia 028043,China;Key Laboratory of the Natural Products Chemistry and Functional Molecular Synthesis of Autonomous Region,Tongliao,Inner Mongolia 028000,China;School of Chemistry&Environment Engineering,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]内蒙古民族大学化学与材料学院,通辽028043 [2]天然产物化学及功能分子合成自治区重点实验室,通辽028000 [3]长春理工大学化学与环境工程学院,长春130022

出　　处：《无机化学学报》2020年第10期1865-1872,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21501102,No.21661026);内蒙古自治区自然科学基金(No.2019MS02002);内蒙古自治区高等学校“青年科技英才支持计划”(No.NJYT-18-B22);内蒙古民族大学科学研究基金(No.NMDYB19051)资助项目。

摘　　要：以光催化活性高的多酸阴离子CeW10O369-、不同结构阳离子表面活性剂为构筑基元,通过水/氯仿两相静电包埋技术制备了一系列表面活性剂@多酸复合物,并利用傅里叶红外光谱(FTIR)、热重分析(TGA)对复合物的组成及结构进行分析;以甲基橙为光催化降解底物分子、表面活性剂@多酸复合物为催化剂,考察不同表面活性剂、催化剂用量、甲基橙浓度、有机染料对光催化降解率的影响;不同表面活性剂@稀土多酸复合催化剂的光催化活性顺序为DTAB(十二烷基三甲基溴化铵)@CeW10>TTAB(十四烷基三甲基溴化铵)@CeW10>CTAB(十六烷基三甲基溴化铵)@CeW10>OTAB(十八烷基三甲基溴化铵)@CeW10>DODA(双十八烷基二甲基溴化铵)@CeW10。A series of complexes of surfactant@polyoxoanions were prepared by water/chloroform two-phase electrostatic encapsulating technology,employing polyoxoanion CeW10O369-with high photocatalytic activity and cationic surfactants in different structure as building blocks.The composition and structure of the complexes were analyzed by Fourier infrared spectroscopy(FTIR)and thermogravimetric analysis(TGA).The effects of various surfactants,catalyst dosage,concentration of methyl orange,and organic dyes on the photocatalytic degradation rate were investigated,in which methyl orange and surfactant@polyoxoanions complexes were used as photodegradation substrate molecule and photocatalyst,respectively.The photodegradation activities for different composite catalysts of surfac tant@polyoxoanions are in the order of DTAB(dodecyltrimethylammonium bromide)@CeW10>TTAB(tetradecyltrimethylammonium bromide)@CeW10>CTAB(cetyltrimethylammonium bromide)@CeW10>OTAB(octadecyl trimethyl ammonium bromide)@CeW10>DODA(dioctadecyl dimethyl ammonium bromide)@CeW10.

关 键 词：多金属氧酸盐 复合催化剂 光催化降解 有机染料 

分 类 号：O611.3[理学—无机化学] O643.3[理学—化学]