N掺杂TiO_(2)-Fe_(2)O_(3)/C光催化剂的制备及其光催化降解性研究  

Preparation of N-doped TiO_(2)-Fe_(2)O_(3)/C photocatalyst and its photocatalytic degradation performance

作　　者：李洁[1] 张佳[2] 陈连喜 吕博 Li Jie;Zhang Jia;Chen Lianxi;Lv Bo(Institute of Food and Health,Wu Chang Institute of Technology,Wuhan 430065;School of Life and Health Sciences,Hubei University of Technology,Wuhan 430068;School of Chemistry,Chemical Engineering and life Sciences,Wuhan University of Technology,Wuhan 430070)

机构地区：[1]武昌工学院食品与健康研究所,武汉430065 [2]湖北工业大学生命科学与健康工程学院,武汉430068 [3]武汉理工大学化学化工与生命科学学院,武汉430070

出　　处：《化工新型材料》2025年第2期210-214,共5页New Chemical Materials

基　　金：湖北省自然科学基金项目(2022CFB397);湖北省教育厅科学技术研究计划指导性项目(B2023335);武昌工学院校级科学研究重点项目(2022ZLZ02)。

摘　　要：为寻找一种简便且具有良好孔结构的光催化剂合成路径,提升并拓宽其光催化应用范围,通过将N掺杂的双金属Ti-Fe MOFs在500℃的空气气氛中直接热解制备N掺杂TiO_(2)-Fe_(2)O_(3)/C纳米结构。获得的产物显示出独特的树枝状结构,且具有较大比表面积和良好的介孔结构。同时,红外光谱(FT-IR)和X射线光电子能谱(XPS)结果证实,在空气条件下煅烧后,衍生物仍保留了N和C成分。此外,将制备的N掺杂树枝状双金属结构多孔材料作为光催化剂用于降解亚甲基蓝(MB)染料。结果表明:N掺杂TiO_(2)-Fe_(2)O_(3)/C比N掺杂非Fe参与的TiO_(2)/C和非N非Fe掺杂TiO_(2)/C具有更好的光催化性能,且N掺杂TiO_(2)-Fe_(2)O_(3)/C对MB染料的有效降解率达到81%。In order to find a simple synthesis path of photocatalyst with well-developed pore structure to enhance and broaden its photocatalytic application,in this study,a novel N-doped TiO_(2)-Fe_(2)O_(3)/C nanostructure was prepared by direct pyrolysis of N-doped bimetallic Ti-Fe MOFs at 500℃directly in air atmosphere.The obtained products displayed a unique dendritic structure with large surface area and well-developed mesoporous structures.Meanwhile,FT-IR and XPS results confirmed that the derivatives were still retain N and C components after calcination in air condition.Moreover,the prepared N-doped dendritic bimetallic porous material was used as a photocatalyst to degrade methylene blue(MB)dye.Th results showed that N-doped TiO_(2)-Fe_(2)O_(3)/C exhibited better photocatalytic performance than that of N-doped TiO_(2)/C without Fe and TiO_(2)/C without both N and Fe doping,and the effective degradability of N-doped TiO_(2)-Fe_(2)O_(3)/C for MB dye reached 81%.

关 键 词：Ti基-MOFs Fe基-MOFs TiO_(2)-Fe_(2)O_(3)/C N掺杂 光催化 

分 类 号：O643[理学—物理化学]