光催化
光降解
亚甲蓝
材料科学
热液循环
辐照
可见光谱
降级(电信)
纳米颗粒
核化学
扫描电子显微镜
带隙
打赌理论
化学工程
光化学
纳米技术
催化作用
复合材料
光电子学
化学
有机化学
电信
工程类
核物理学
计算机科学
物理
作者
Gebrehiwot Gebreslassie,Mamo Gebrezgiabher,Bin Lin,Madhu Thomas,Wolfgang Linert
出处
期刊:Inorganics (Basel)
[Multidisciplinary Digital Publishing Institute]
日期:2023-03-13
卷期号:11 (3): 119-119
被引量:4
标识
DOI:10.3390/inorganics11030119
摘要
Magnetically recyclable direct Z-scheme CoFe2O4-loaded g-C3N4 photocatalyst material was fabricated using a facile hydrothermal technique and subsequently characterized by XRD, VSM, PL, FT-IR, EDX, DRS, SEM, and BET techniques. The characterization results confirmed that nanoparticles of CoFe2O4 are loaded on the surface of g-C3N4 sheets. The optical band gap of g-C3N4 has been decreased from 2.65 eV to 1.30 eV by means of the loading of CoFe2O4 nanoparticles onto the nanosheets of g-C3N4. This has enhanced the separation process of electron-hole. Under visible light irradiation, the photocatalytic activity of the developed direct Z-scheme CoFe2O4-loaded g-C3N4 photocatalyst was evaluated for the photodegradation of methylene blue (MB); during this process the MB decomposed by up to 98.86% in 140 min. Meanwhile, under the same irradiation and time conditions, the g-C3N4 and CoFe2O4 themselves degraded MB up to 74.92% and 51.53%, respectively. The direct Z-scheme CoFe2O4-loaded g-C3N4 material was recovered from the solution after the photocatalytic activity using an external magnet and studied to determine its stability. It was shown that the photoactivity did not change significantly after five consecutive cycles.
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