Visible Light-Based Ag 3 PO 4 /g-C 3 N 4 @MoS 2 for Highly Efficient Degradation of 2-Amino-4-acetylaminoanisole (AMA) from Printing and Dyeing Wastewater

Hong Liu, Houwang Chen and Ning Ding
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Hong Liu: Jiangsu Key Laboratory of Environmental Science and Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
Houwang Chen: Jiangsu Key Laboratory of Environmental Science and Technology, School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
Ning Ding: Key Laboratory of Cleaner Production and Comprehensive Utilization of Resources, China National Light Industry, Department of Environmental Science and Engineering, Beijing Technology and Business University, Beijing 100000, China

IJERPH, 2022, vol. 19, issue 5, 1-14

Abstract: In this research, the preparation of a Ag 3 PO 4 /g-C 3 N 4 @MoS 2 photocatalyst and the performance and mechanism of degradation of 2-amino-4-acetaminoanisole (AMA) were studied. The phase composition and morphology of the synthesized samples were comprehensively characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), ultraviolet–visible diffuse reflectance (UV–Vis), and photoelectron spectroscopy (XPS). The catalytic performance of the photocatalyst was evaluated by the visible-light catalytic degradation of the AMA. The experimental results show that the Ag 3 PO 4 /g-C 3 N 4 @MoS 2 composite photocatalyst has stronger photocatalytic oxidation and reduction capabilities than Ag 3 PO 4 and Ag 3 PO 4 /g-C 3 N 4 . The material only decreases by 31.3% after five cycles of use, indicating that the material has good light stability. Free radical capture experiments prove that photo-generated holes (h + ) and superoxide radicals (·O 2 − ) are the main active substances in the photocatalytic process. The fundamental studies in the present research provide a new perspective for constructing an innovative type of visible-light photocatalyst and a new way to promote the photocatalytic degradation of organic pollutants.

Keywords: catalysis; degradation; nanomaterials; Ag 3 PO 4; heterojunction formation (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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