Co-L/g-C_(3)N_(4)复合材料光催化产氢性能的研究  

Photocatalytic Hydrogen Production of Co-L/g-C_(3)N_(4) Composites

作　　者：李志鹏 肖宝妍 李鑫 于颖 高恩军 LI Zhi-peng;XIAO Bao-yan;LI Xin;YU Ying;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1期1-5,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：利用太阳能光催化分解水制氢是解决未来能源危机的前景方案之一,各种具有新颖结构的、高效的光催化剂正不断被开发出来.利用金属配合物的设计思路,以掺杂的方式对g-C_(3)N_(4)基光催化剂进行改良,制备出具有高稳定性、高活性的Co-L/g-C_(3)N_(4)复合材料.使用XRD、SEM手段对复合材料进行表征,并利用荧光分光光度计验证配合物的加入对光生载流子的影响.实验测定了在模拟太阳光照射下Co-L/g-C_(3)N_(4)复合材料光催化产氢速率为101.233μmol/g/h,相比纯相g-C_(3)N_(4)提升了14倍,且该复合材料具有较好的可重复利用性,并推测了可能的光催化机理.The use of solar photocatalytic decomposition of water to produce hydrogen is one of the prospects for solving the future energy crisis.Various high-efficiency photocatalysts with novel structures are being developed.The g-C_(3)N_(4)based photocatalyst was modified by doping with metal complexes,and the Co-L/g-C_(3)N_(4)composite with high stability and high activity was prepared.The composites were characterized by XRD and SEM.The effects of the addition of complexes on photogenerated carriers were verified by fluorescence spectrophotometer.The photocatalytic hydrogen production rate of Co-L/g-C_(3)N_(4)composites was 101.233μmol/g/h under simulated sunlight,which was 14 times higher than that of pure phase g-C_(3)N_(4).Composite materials have good reusability.Finally,based on the work done above,the possible photocatalytic mechanism was speculated.

关 键 词：光催化 配合物 光解水 太阳能 

分 类 号：O643.36[理学—物理化学] TQ116.2[理学—化学]