光催化
材料科学
异质结
可见光谱
钒酸铋
纳米复合材料
罗丹明B
热液循环
化学工程
纳米技术
光电子学
催化作用
化学
工程类
生物化学
作者
Maira Liaqat,Khalid Riaz,Tahir Iqbal,Ghulam Nabi,M. Shakil,Muhammad Rizwan
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2022-10-21
卷期号:34 (1): 015711-015711
被引量:5
标识
DOI:10.1088/1361-6528/ac9738
摘要
Heterostructure BiVO4/Bi2O3nanocomposites with enhanced visible light activity are effectively synthesized through an easiest and single step hydrothermal route, using bismuth subnitrate and ammonium meta-vanadate as main raw materials in existence of citric acid. The phase and surface structure, topography and optical properties of synthesized composites are characterized by XRD, SEM, EDX, FTIR, UV-Visible and PL spectroscopy. It was found that 5%BiVO4/Bi2O3(BOBV-5) nanocomposite exhibit excellent photocatalytic performance for rhodamine B dye degradation and tetracyclic under irradiation of visible light as compared to single component i.e. BiVO4. The increased photocatalytic activity should be ascribed for making p-n heterojunction among p-type Bi2O3and n-type BiVO4. This p-n heterojunction successfully reduce the recombination of photogenerated charge carriers. Furthermore, the BOBV-5 novel photocatalyst shows good stability in constructive five cycles and photocatalytic activity is best for conquering photo corrosion of a photocatalysts. To explain charge migration route, whole photocatalytic mechanism was described in terms of energy band structures. Furthermore, the present work is helpful effort for design of new visible light photocatalytic materials with heterojunction structures.
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