钴酞菁修饰两亲性Janus颗粒用于乳液界面光催化染料降解  

Cobalt phthalocyanine modified amphiphilic Janus particles for photocatalytic dye degradation at emulsion interface

作　　者：陈晨[1] 冯军 张馨予[1] 张琳林 付琬璐 孙大吟 王娜[1,2,3] CHEN Chen;FENG Jun;ZHANG Xinyu;ZHANG Linlin;FU Wanlu;SUN Dayin;WANG Na(Liaoning Provincial Key Laboratory for Preparation and Application of Special Functional Materials,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China;Shenyang Key Laboratory for New Functional Coating Materials,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China;Liaoning Shunfeng New Material Technology Co.,Ltd.,Shenyang 110326,Liaoning,China;Department of Chemical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]沈阳化工大学,辽宁省特种功能材料合成与制备重点实验室,辽宁沈阳110142 [2]沈阳化工大学,沈阳市新型功能涂层材料重点实验室,辽宁沈阳110142 [3]辽宁顺风新材料科技有限公司,辽宁沈阳110326 [4]清华大学化学工程系,北京100084

出　　处：《精细化工》2023年第11期2403-2412,2534,共11页Fine Chemicals

基　　金：国家自然科学基金项目(52203271、52203141);辽宁省揭榜挂帅科技攻关专项(2021JH1/10400091);沈阳市重大关键核心技术攻关专项(20-202-1-15);中国-西班牙材料联合实验室项目(2022JH2/10700005)。

摘　　要：制备了两亲性雪人状SiO_(2)@聚二乙烯基苯(PDVB)Janus颗粒和钴酞菁(CoPc)催化剂,将CoPc选择性地负载于SiO_(2)@PDVBJanus颗粒的亲水一侧,得到了CoPc-SiO_(2)@PDVBJanus催化剂。通过SEM、TEM、XPS、EDS、FTIR、TG对其进行了表征。将CoPc-SiO_(2)@PDVBJanus催化剂作为乳化剂和界面催化剂用于水/正己烷体系(水包油乳液)中罗丹明B(RhB)的光催化降解反应中,对CoPc-SiO_(2)@PDVBJanus催化剂在水包油乳液中的使用条件和催化性能进行了探究。结果表明,CoPc-SiO_(2)@PDVBJanus催化剂已成功制备,表面存在明显分区,聚合物一侧相对光滑,800℃时质量保留率为32%。该催化剂对RhB降解率最高可达94.6%,相对于负载前催化剂展现出明显的催化优势,并且易于回收并重复利用,循环5次后仍保持良好的催化活性,RhB降解率为80.5%。CoPc-SiO_(2)@polydivinylbenzene(PDVB)Janus catalyst was prepared by selectively loading cobalt phthalocyanine(CoPc)catalyst onto the hydrophilic side of amphiphilic snowman-like SiO_(2)@PDVB nanoparticles,characterized by SEM,TEM,XPS,EDS,FTIR,and TG,and then applied in the photocatalytic degradation of Rhodamine B(RhB)in water/n-hexane system(oil-in-water emulsion)as emulsion and interface catalyst to explore the optimal reaction conditions and its catalytic performance.The results showed that the CoPc-SiO_(2)@PDVB Janus catalyst was successfully synthesized with obvious surface partitions and relatively smooth polymer side with a mass retention of 32%at 800℃.The highest degradation rate of RhB reached up to 94.6%,showing enhanced catalytic performance in comparison to the control catalyst without CoPc loaded. Moreover, the catalyst exhibited easy recovery and good catalytic activity after being recycled 5 times with the degradation rate of RhB maintained at 80.5%. the control catalyst without CoPc loaded. Moreover, the catalyst exhibited easy recovery and good catalytic activity after being recycled 5 times with the degradation rate of RhB maintained at 80.5%.

关 键 词：两亲性Janus 界面催化 钴酞菁 光催化 降解 功能材料 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学] O644.1[理学—化学]