硅酸盐学报2020，Vol.48Issue(1)：44-52,9.DOI:10.14062/j.issn.0454-5648.20190283
纳米片层状类石墨氮化碳的制备及其光催化性能
Preparation and Photocatalytic Properties under Visible Light Irradiation of Graphite-like Carbon Nitride Nanosheets
摘要
Abstract
Graphitic carbon nitride (g-C3N4) nanosheet was synthesized by a facile fabrication method. Melamine was treated by a thermal polycondensation process. Pure g-C3N4 was treated by acid etching, heat etching and coupling with NH4Cl. The crystalline structure, morphology, specific surface area, band structure and visible absorption of the material were evaluated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy analysis, X-ray photoelectron spectroscopy, Raman spectroscopy, specific surface area (BET analysis), ultraviolet visible diffuse reflection spectroscopy and Mott-Schottky curve analysis, respectively. The photocatalytic activity was estimated by the degradation of Rhodamine and tetracycline hydrochloride solution under visible light irradiation. The results show that a clear, ordered, 2D nanosheet g-C3N4 structure with a layer thickness of 47 nm is formed, and the maximum specific surface area is a maximum (22 m2/g) when the mole ratio of melamine to NH4Cl is 5:4. The photocatalytic performance of bulk g-C3N4 is enhanced after treatment. The photocatalytic degradation rate of the sample treated with melamine and NH4Cl at a ratio of 5:4 is 3.4 times greater than that of untreated g-C3N4. The sample degrades 83.2％ tetracycline hydrochloride solution for 4 h.关键词
类石墨氮化碳/二维纳米层/可见光/刻蚀/光催化剂Key words
graphitic carbon nitride/two-dimensional nanosheet/visible light/etching/photocatalyst分类
化学化工引用本文复制引用
马爱琼,张电,张由子,高云琴..纳米片层状类石墨氮化碳的制备及其光催化性能[J].硅酸盐学报,2020,48(1):44-52,9.基金项目
陕西省自然科学基金(2020318029). （2020318029）
