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Synthesis of MnFe2O4/g-C3N4 Composite for Enhanced Photocatalytic Degradation of Rhodamine B.

Authors :
Shen, Qiqi
Hu, Shiyue
Qin, Yu
Yuan, Jinhai
Liu, Junhong
Hu, Haikun
Luo, Xuanlan
Xu, Di
Source :
Russian Journal of Physical Chemistry; Sep2023, Vol. 97 Issue 9, p1880-1890, 11p
Publication Year :
2023

Abstract

Photocatalysis has attracted much attention because it can decompose water to produce hydrogen or reduce carbon dioxide to CH<subscript>3</subscript>OH, CH<subscript>4</subscript> or other chemical materials. In this study, the MnFe<subscript>2</subscript>O<subscript>4</subscript>/g-C<subscript>3</subscript>N<subscript>4</subscript> composite was fabricated by the co-precipitation method. Various techniques were used to characterize the MnFe<subscript>2</subscript>O<subscript>4</subscript>/g-C<subscript>3</subscript>N<subscript>4</subscript> composite, including, FT-IR, Raman, XRD, SEM, EDS, and UV–Vis. Under UV light, the catalytic performance of MnFe<subscript>2</subscript>O<subscript>4</subscript>/g-C<subscript>3</subscript>N<subscript>4</subscript> was tested by decomposing rhodamine B (Rh B). According to the findings, the catalyst is a typical spinel structure material with an excellent light response in 250–800 nm wavelength. The MnFe<subscript>2</subscript>O<subscript>4</subscript>/g-C<subscript>3</subscript>N<subscript>4</subscript> composite catalyst can degrade over 82% of Rh B in 150 min. Cyclic experiments show that MnFe<subscript>2</subscript>O<subscript>4</subscript>/g-C<subscript>3</subscript>N<subscript>4</subscript> has long-term stability for Rh B. Because of its heterojunction structure, photogenerated electrons from g-C<subscript>3</subscript>N<subscript>4</subscript> surfaces may easily move to MnFe<subscript>2</subscript>O<subscript>4</subscript>, which can substantially increase photoelectron-hole pair separation. The use of the MnFe<subscript>2</subscript>O<subscript>4</subscript>/g-C<subscript>3</subscript>N<subscript>4</subscript> compound as photocatalysts for the degradation of Rh B is evidenced by these findings. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00360244
Volume :
97
Issue :
9
Database :
Complementary Index
Journal :
Russian Journal of Physical Chemistry
Publication Type :
Academic Journal
Accession number :
171345927
Full Text :
https://doi.org/10.1134/S0036024423090170