Microwave- and Formaldehyde-Assisted Synthesis of Ag–Ag3PO4 with Enhanced Photocatalytic Activity for the Degradation of Rhodamine B Dye and Crude Oil Fractions | Zendy

Emmanuel Nyankson | Zendy; Reuben Amedalor | Zendy; Gauthaman Chandrabose | Zendy; Michael Coto | Zendy; Satheesh Krishnamurthy | Zendy; R. Vasant Kumar | Zendy

Open Access

Microwave- and Formaldehyde-Assisted Synthesis of Ag–Ag₃PO₄ with Enhanced Photocatalytic Activity for the Degradation of Rhodamine B Dye and Crude Oil Fractions

Author(s) -

Emmanuel Nyankson,

Reuben Amedalor,

Gauthaman Chandrabose,

Michael Coto,

Satheesh Krishnamurthy,

R. Vasant Kumar

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c00670

Subject(s) - photocatalysis , rhodamine b , benzene , degradation (telecommunications) , formaldehyde , visible spectrum , photochemistry , materials science , nuclear chemistry , chemistry , catalysis , organic chemistry , optoelectronics , telecommunications , computer science

The release of crude oil and water-soluble dyes into our marine environment is a major global problem. An efficient semiconductor Ag-AgPO photocatalyst was synthesized using formaldehyde as a reducing agent to form surface active Ag on AgPO under microwave radiation for heating, and its potential in destroying environmental pollutants has been examined. The diffuse reflectance spectroscopy of Ag-AgPO revealed an enhanced absorption in the visible light region. The rate of photocatalytic degradation of rhodamine B by Ag-AgPO was over 4-fold compared to AgPO. The potential application of Ag-AgPO in oil spill remediation was also examined through photocatalytic degradation of benzene, -hexane, and 1:1 v/v benzene/methanol crude oil-soluble fractions. UV-vis and gas chromatography-mass spectrometry analysis of the crude oil components after visible light irradiation showed excellent degradation. The photocatalytic efficiency enhancement of Ag-AgPO is attributed to the excellent electron trapping of silver nanoparticles deposited on the surface of AgPO. This work will motivate future studies to develop recyclable visible light photocatalysts for many applications.

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