硫酸改性g-C_(3)N_(4)的制备及其光催化产氢性能研究  

Preparation of g-C_(3)N_(4) modified by sulfuric acid andits photocatalytic performance for hydrogen production

作　　者：陈书航 郝亚超 赵阳灿 杨潘 王斯琰[1] 徐宏妍[1] CHEN Shuhang;HAO Yachao;ZHAO Yangcan;PAN Yang;WANG Siyan;XU Hongyan(School of Materials Science and Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学材料科学与工程学院,太原030051

出　　处：《功能材料》2023年第7期7126-7130,共5页Journal of Functional Materials

基　　金：山西省回国留学人员科研项目(2021-124)。

摘　　要：采用硫酸水热处理改性g-C_(3)N_(4)材料。使用扫描电镜、X射线衍射仪、紫外-可见漫反射仪、比表面积仪和电化学工作站等设备测试材料的形貌和性能。研究了不同硫酸浓度对其形貌、结构、比表面积,进一步探究影响期光催化产氢性能的原因。结果表明,0.4 mol/L硫酸处理的g-C_(3)N_(4)具有优异比表面积、孔径以及可见光响应从而光催化产氢性能高,而当硫酸浓度>0.4 mol/L时,的结构发生改变,被剥离的太严重,导致介孔的减少不利于光催化产氢。g-C_(3)N_(4) was modified by sulfuric acid hydrothermal treatment.The morphology and properties of the materials were tested using scanning electron microscopy,X-ray diffractometer,UV-visible diffuse reflectometer,surface area meter and electrochemical workstation.The morphology,structure and specific surface area of sulfuric acid with different concentration were studied to further explore the reasons affecting the performance of photocatalytic hydrogen production.The results show that g-C_(3)N_(4) treated with 0.4 mol/L sulfuric acid has excellent specific surface area,pore size and visible light response,which leads to high photocatalytic hydrogen production performance.However,when the concentration of sulfuric acid is greater than 0.4 mol/L,the structure of g-C_(3)N_(4) changes and is severely removed,resulting in the reduction of mesoporous pores,which is not conducive to photocatalytic hydrogen production.

关 键 词：g-C_(3)N_(4) 硫酸 光催化 产氢 

分 类 号：X703[环境科学与工程—环境工程]