胡子敬;段成林;郭茜亚;高宇宁;李晨雨;藏久懿;宋金玲;

• 1:内蒙古科技大学材料与冶金学院

•  

摘要(Abstract)：                

通过X射线衍射(XRD),扫描电子显微镜(SEM)和X射线光电子能谱(XPS)的表征,发现g-C_3N_4-TH,g-C_3N_4-CU,g-C_3N_4-CA,g-C_3N_4-HAc具有类似的片层结构.紫外-可见漫反射吸收光谱(UV-Vis DRS)得出制备样品的禁带宽度呈现:g-C_3N_4>g-C_3N_4-TH>g-C_3N_4-CU>g-C_3N_4-HAc>g-C_3N_4-CA.荧光光谱(PL)分析得出g-C_3N_4-CU的光生电子-空穴的分离效率要高于g-C_3N_4.以15 mg/L甲基橙为模拟污染物考察所制备材料的可见光催化性能,结果发现g-C_3N_4-CU的降解性能最好,是g-C_3N_4降解效率的3.2倍.

关键词(KeyWords)：                    石墨相氮化碳;结构调控;光催化;有机污染物

基金项目(Foundation):                    内蒙古自治区自然科学基金资助项目(2019MS02023);; 内蒙古科技大学优秀青年基金资助项目(2018YQL01);内蒙古科技大学创新基金资助项目(2017028)

作者(Author):                    胡子敬;段成林;郭茜亚;高宇宁;李晨雨;藏久懿;宋金玲;

Email:                                    

参考文献(References)：

• [1]CHEN X B,SHEN S H,GUO L J,et al.Semiconductor-based photocatalytic hydrogen generation[J].Chem Rev.2010,110(11):6503-6570.

• [2]CHONG M N,JIN B,CHOW C W K,et al.Recent developments in photocatalytic water treatment technology:A review[J].Water Res.2010,44(10):2997-3027.

• [3]ZHANG S,GU P C,MA R,et al.Recent developments in fabrication and structure regulation of visible-light-driven g-C3N4-based photocatalysts towards water purification:A critical review[J].Catal Today,2019,335:65-77.

• [4]RAGHAVA R K,VENKATA R C,MALLIKARJUNA NN,et al.Polymeric graphitic carbon nitride(g-C3N4)-based semiconducting nanostructured materials:synthesis methods,properties and photocatalytic applications[J].J Environ Manage,2019,238:25-40.

• [5]LI X B,XIONG J,GAO X M,et al.Recent advances in3D g-C3N4composite photocatalysts for photocatalytic water splitting,degradation of pollutants and CO2reduction[J].J Alloys Compounds,2019,802:196-209.

• [6]SHI L,YANG L Q,ZHOU W,et al.Photoassisted construction of holey defective g-C3N4photocatalysts for efficient visible-light-driven H2O2production[J].Small,2019,14(9):1703142.

• [7]AGHDAM S M.,HAGHIGHI M,ALLAHYARI S,et al.Precipitation dispersion of various ratios of Bi OI/Bi OCl nanocomposite over g-C3N4for promoted visible light nanophotocatalyst used in removal of acid orange 7 from water[J].J Photoch Photobio A,2017,338:201-212.

• [8]鲍玥,周旻昀,邹骏华,等.C3N4/Bi OBr复合可见光催化剂的性能及其作用机制[J].环境科学,2017,38(5):2182-2190.

• [9]李伦,王虎,宋金玲,等.Bi OXs与羟基化g-C3N4异质结的制备与光催化性能研究[J].内蒙古科技大学学报,2019,38(2):121-125.

• [10]MIAO J L,XU G Q,LIU J Q,et al.Synthesis and photocatalytic performance of g-C3N4nanosheets via liquid phase stripping[J].J Solid State Chem,2017,246:186-193.