碱水热法制备Ti3C2-Ag3PO4光催化剂及其光催化性能研究
Preparation of Ti3C2-Ag3PO4 photocatalyst via alkali hydrothermal method and evaluation of its photocatalytic performance
徐竞帆 1周绿山 1沈琪 1熊信洁 1刘丹 1李颖 1张玉 1唐佳文1
作者信息
- 1. 四川文理学院化学化工学院,四川 达州 635000
- 折叠
摘要
通过碱水热反应合成了Ti3C2,并以其为载体制备了不同负载量的Ti3C2-Ag3PO4 光催化剂.利用FT-IR、XRD、SEM、XPS等对光催化剂进行表征.结果表明,在 240℃水热条件下,碱刻蚀法制备的Ti3C2 为刻蚀程度较低的片层结构,同时材料中有微量的TiO2 存在,同时Ag3PO4 以立方相的形式负载到Ti3C2 载体表面.随着Ag3PO4 负载量的增加,Ti3C2-Ag3PO4的光催化活性逐渐增大,在催化剂质量为0.01 g、反应时间为 60 min时,Ti3C2-Ag3PO4-85%对亚甲基蓝的降解率达到 95%.Ti3C2 与Ag3PO4 异质结的存在使其具有较强的电荷分离能力和优异的光催化性能.
Abstract
Ti3C2 is synthesized through alkaline hydrothermal reaction,and used as support to prepare Ti3C2-Ag3PO4 photocatalysts with different loading amount.The photocatalysts are characterized by means of FT-IR,XRD,SEM and XPS.It is indicated that Ti3C2 prepared through alkali etching method at 240℃ hydrothermal condition presents a layer structure with low etching degree.In addition,there are trace TiO2 in Ti3C2 material,and Ag3PO4 has been supported on the surface of Ti3C2 support.The photocatalytic activity of Ti3C2-Ag3PO4 increases with the higher Ag3PO4 loading amount.The degradation rate of methylene blue by Ti3C2-Ag3PO4-85％can reach 95％when the usage of the catalyst is 0.01 g and the reaction performs 60 min.The presence of heterojunction between Ti3C2 and Ag3PO4 makes the catalyst have strong charge separation ability and excellent photocatalytic performance.
关键词
碱水热法/Ti3C2-Ag3PO4/光催化Key words
alkaline hydrothermal method/Ti3C2-Ag3PO4/photocatalysis引用本文复制引用
基金项目
四川省科技厅项目(2022YFG0277)
绿色催化四川省高校重点实验室项目(LZJ2202)
四川省大学生创新创业训练项目(S202310644044)
出版年
2024
NETL
NSTL
万方数据