Ni-L/g-C_(3)N_(4)复合材料光催化降解甲基橙性能的研究  

Photocatalytic Degradation of Methyl Orange by Ni-L/g-C_(3)N_(4)Composite

作　　者：王诗桥 高恩军 WANG Shi-qiao;GAO En-jun(Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学辽宁省无机分子基化学重点实验室,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2021年第4期289-293,共5页Journal of Shenyang University of Chemical Technology

基　　金：国家自然科学基金资助项目(21171118)。

摘　　要：为了提升g-C_(3)N_(4)的光催化降解性能,引入一种Ni金属配合物对g-C_(3)N_(4)进行改性.利用水热法合成基于1,3-二-(4′-(5′-四唑基)苯氧基)苯甲酸的Ni配合物Ni-L,将Ni-L负载到g-C_(3)N_(4)上,得到Ni-L/g-C_(3)N_(4)复合材料.对Ni-L/g-C_(3)N_(4)进行XRD、SEM表征,对不同负载量的复合物进行荧光性能表征.通过探究复合光催化剂的不同Ni-L负载量以及不同pH条件对光催化降解甲基橙效率的影响,得出结论:当pH=2时,50 mg负载量为50%的Ni-L/g-C_(3)N_(4)复合光催化剂降解50 mg/L的甲基橙溶液,光照时间为90 min时,降解效率可达100%.In order to improve the photocatalytic degradation performance of g-C_(3)N_(4),a Ni metal complex was introduced to modify g-C_(3)N_(4).Ni-L,a Ni complex based on 1,3-2-(4′-(5′-tetrazolidyl)phenoxyexy)benzoic acid was synthesized by hydrothermal method,and the prepared complex was loaded onto g-C_(3)N_(4).The obtained composite powder was characterized by XRD and SEM.The fluorescence properties of compounds with different loading amounts were characterized.By exploring the effects of composite photocatalysts with different loading amounts and various pH conditions on the degradation efficiency of methyl orange,it was concluded that when pH=2,50 mg Ni-L/g-C_(3)N_(4)composite photocatalyst with 50%loading amount was added to degrade methyl orange solution with a mass concentration of 50 mg/L,the degradation efficiency can reach 100%when the degradation time was 90 min.

关 键 词：光催化降解 Ni配合物 Ni-L/g-C_(3)N_(4) 甲基橙 

分 类 号：O643.36[理学—物理化学]