Work

Green-synthesized Ag-Ag2S Heterostructures for efficient catalytic remediation of 4-Nitrophenol

Year: 2025

Type: article

Abstract: The contamination of water bodies by toxic dyes such as 4-nitrophenol (4-NP) presents a critical environmental challenge, driving the need for efficient and sustainable remediation strategies. This study investigates the synthesis and catalytic performance of Ag-Ag 2 S alloy nanoparticles (NPs) prepared via green and conventional chemical routes. Structural and morphological characterizations confirmed the successful formation of the alloy phase through both methods. The green-synthesized nanoparticles exhibited a smaller average size (∼5 nm) compared to chemically synthesized ones (∼23 nm), which contributed to their enhanced catalytic activity. In reduction experiments, the green-synthesized Ag-Ag 2 S NPs achieved a high reduction efficiency of 84% within 6 minutes, significantly outperforming the chemically synthesized NPs, which reached only 54.6% efficiency in 21 minutes. The findings highlight the superior catalytic potential of green-synthesized Ag-Ag 2 S nanoparticles and underscore their promise as eco-friendly nanocatalysts for wastewater treatment applications.

Source: Materials Research Bulletin

DOI: 10.1016/j.materresbull.2025.113732

Authors: Shreepooja Bhat, T.K. Nanditha, Namitha B, Rajashekhar Pujar, Srivathsava Surabhi, S.C. Gurumurthy

Institution: Manipal Academy of Higher Education

Language: English

Topic: Nanomaterials for catalytic reactions

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $3,610