文献类型：期刊文章

作　　者：刘义[1] 周泫沐[1] 张泽会[1] 张丙广[1] 邓克俭[1]

机构地区：[1]中南民族大学化学与材料科学学院,催化材料科学国家民委-教育部重点实验室,湖北武汉430074

出　　处：《Chinese Journal of Catalysis》

基　　金：supported by National Natural Science Foundation of China (20977115, 21272281);Natural Science Foundation of Hubei Province (2014CFB919);the Science and Technology Plan Innovation Team of Wuhan City (2015070504020220)~~

年　　份：2017

卷　　号：38

期　　号：2

起止页码：330-336

语　　种：中文

收录情况：0、AJ、BDHX、BDHX2014、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2017_2018、EI(收录号：20171103436958)、JST、RSC、SCIE、SCOPUS、ZGKJHX、核心刊

摘　　要：The photocatalytic activity of cobalt octakis（butylthio） porphyrazine（CoPz（BuS）8） was assessed through photodegradation of the dye rhodamine B（RhB） in water under irradiation with a Xe lamp and aerated conditions.The photocatalytic activity of CoPz（BuS）8 loaded on Al2O3 or SiO2@Fe3O4nanoparticles or coordinated with an axial azide ligand was also investigated.The results demonstrated that the photocatalytic activity of CoPz（BuS）8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4.The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction.The highest degradation rate for CoPz（BuS）8 loaded Al2O3 at pH = 4 after 160 min was 84.6%.However,the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz（BuS）8 loaded SiO2@Fe3O4 cannot be ignored.When electron-rich NaN3 was coordinated with CoPz（BuS）8 as an axial ligand and loaded on Al2O3,the resulting catalyst produced more active oxygen species such as O2^- and HO· to promote the quicker degradation of RhB than that by the other catalysts.For the N3-coordinated CoPz（BuS）8 loaded on Al2O3,the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics,and the degradation rate reached 77.6%after 80 min at pH = 4.

关 键 词：Cobalt thioporphyrazine  Photocatalytic activity  ALUMINA SiO2@Fe3O4  Axial direction ligand  Sodium azide  

分 类 号：O641.4] O643.36[化学类]