基于Dawson型磷钨酸杂化材料[Co(2,2´-bipy)_(3)]_(3)(P_(2)W_(18)O_(62))的吸附性能的研究  

ADSORPTION PERFORMANCE OF HYBRID MATERIAL[Co(2,2´-bipy)_(3)]_(3)(P_(2)W_(18)O_(62))BASED ON DAWSON-TYPE H6P2W18O62

作　　者：杨赟 李立恒 陈秀云 黄婷 孙勇 杨水金 YANG Yun;LI Li-heng;CHEN Xiu-yun;HUANG Ting;SUN Yong;YANG Shui-jin(College of Chemistry and Environmental Engineering,Hanjiang Normal University,Shiyan,Hubei 442000,China;College of Chemistry and Chemical Engineering,Hubei Normal University,Huangshi,Hubei 435002,China)

机构地区：[1]汉江师范学院化学与环境工程学院,湖北十堰442000 [2]湖北师范大学化学化工学院,湖北黄石435002

出　　处：《井冈山大学学报（自然科学版）》2022年第2期35-40,共6页Journal of Jinggangshan University (Natural Science)

基　　金：2021年国家级大学生创新创业训练计划项目(202110518003);贵州省典型高原湿地保护与修复重点实验室开放基金项目(202104);汉江师范学院科学研究计划项目(XJ2021501);汉江师范学院2021年度教学改革研究项目(2021C01)。

摘　　要：以[Co(2,2´-bipy)_(3)]Cl_(2)·5.5H_(2)O为基体材料,利用水热合成法构筑[Co(2,2´-bipy)_(3)]_(3)(P_(2)W_(18)O_(62))复合吸附剂。通过FT-IR﹑EDS﹑TG﹑BE6T等进行分析可知该材料有良好的热稳定性和大的比表面积。探讨影响复合吸附剂对MB溶液吸附效果的不同条件。研究表明引入杂多酸构筑的复合吸附剂能有效地抑制二联吡啶配合物自身的水溶性,在有利于MB吸附的碱性和高温条件下最大吸附量可以达到80.97 mg/g。通过复合吸附剂的拟二级动力学模型可知MB溶液的吸附过程为自发且吸热的(ΔG0<0,ΔH0>0)。An adsorbent[Co(2,2´-bipy)_(3)]_(3)(P_(2)W_(18)O_(62))was synthesized with the base materials H6P2W18O62 and[Co(2,2´-bipy)_(3)]Cl_(2)·5.5H_(2)O by a hydrothermal method.The results of FT-IR,EDS,TG and BET showed the hybrid material had good thermal stability and big surface area.The different conditions which affect the adsorption ability of the compound adsorbent on MB solution were discussed.The results indicated that the compound adsorbent could efficiently inhibited its self-water solubility of the dipyridine complex,the maximum uptake capacity of the composite could reach 80.97 mg/g under the favorable alkaline and high temperature conditions for MB adsorption.It could be concluded that the adsorption process in the MB solution was spontaneous and endothermic through the pseudo-second-order kinetic model of the compound adsorbent(ΔG0<0,ΔH0>0)

关 键 词：杂多酸 吸附 染料废水 亚甲基蓝 金属有机骨架 

分 类 号：TQ426.91[化学工程]