Fabrication of novel S-type In2S3/Ag2S heterostructures with superior photocatalytic and electrochemical characteristics for remediation of organic contaminants in water

IF 4.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications Pub Date : 2025-02-01 DOI:10.1016/j.inoche.2024.113621

Shruti Jain , Monika Kumari , Naveen Kumar , Anuj Mittal , Vinod Kumar , Muhammad Tahir , Pardeep Singh , Gita Rani , Jyoti Kataria , Jogender

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引用次数: 0

Abstract

In the present report, In₂S₃/Ag₂S heterojunctions were created hydrothermally and characterized for their crystalline structure, morphology, composition, optical characteristics, charges reunification and property of charge by standard analytical techniques. Synthesized nanomaterials were utilized for the decontamination of organic pollutants such as Rhodamine B (RhB) dye and antibiotic ciprofloxacin (CP) by using visible light radiance. Calculated photocatalytic removal efficacy for RhB and CP over In₂S₃/Ag₂S nanocomposite was 99.95 % in 40 min and 99.49 % in 140 min respectively which is 1.98 and 1.21 times greater than In₂S₃ alone. Maximum removal efficiency was achieved for In₂S₃/Ag₂S (3 wt%) composition. The enhanced activity is attributed to the greater absorption of visible light and construction of S-type heterojunction which are more efficient for light induced charge separation and therefore decrease the reunification of hole-electron carriers. Density functional theory (DFT) analysis also supported that the nanocomposite is energetically favorable, stable and show significantly electronic and photocatalytic properties. In₂S₃/Ag₂S (3 wt%) nanocomposite achieved excellent photocatalytic stability towards the removal of RhB and CP even after five runs. In₂S₃/Ag₂S (3 wt%) nanocomposites showed maximum photocatalytic activity in acidic medium. Effect of trapping agents towards removal of CP and RhB were conducted and results showed that^.O₂⁻ radical play dominant role as active species in comparison to ⋅OH radical and holes. Plausible mechanism of transfer of charge in In₂S₃/Ag₂S and removal of pollutants is also represented. Owing to their unique features, novel In₂S₃/Ag₂S heterojunctions exhibits as an exceptionally effective photocatalyst for removal of pollutants and it would display the promising utilization towards wastewater treatment.

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来源期刊

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.