Molecularly imprinted Ag 2 S quantum dots with high photocatalytic activity for dye removal: Experimental and DFT insights.

Autor: Malik AQ; Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India., Jabeen T; Department of Structural Chemistry and Spectroscopy, Universitat Leipzig, 04103, Leipzig, Germany., Lokhande PE; Advanced Physics Laboratory, Department of Physics, Savitribai Phule Pune University, Pune, India., Kumar D; Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India. Electronic address: deepak.sharma99967@gmail.com., Awasthi S; Department of Chemistry, School of Basic Sciences, Manipal University Jaipur, Jaipur, 303007, Rajasthan, India. Electronic address: shikha.awasthi@jaipur.manipal.edu., Pandey SK; Department of Chemistry, Maulana Azad National Institute of Technology Bhopal, Bhopal, 462003, Madhya Pradesh, India. Electronic address: sarvesh@manit.ac.in., Mubarak NM; Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei Darussalam; Department of Biosciences, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, India. Electronic address: mubarak.yaseen@gmail.com., Abnisa F; Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Rabigh, 21911, Saudi Arabia.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2024 Aug; Vol. 366, pp. 121889. Date of Electronic Publication: 2024 Jul 24.
DOI: 10.1016/j.jenvman.2024.121889
Abstrakt: Molecular imprinted polymers (MIPs) were developed by carrying out the cocktail solution of Template ((Salata, 2004)-Gingerol), monomer, crosslinker, and Ag 2 S Quantum Dots (QDs) by ex-situ dissolved in an appropriate solvent, resulting in an efficient crosslinked polymer composite. Degradation of Alizarin red S (ARS) dye and yellowish sunset (SY) azo dye under visible light irradiation was reported first time by the introduction of prepared MIPs composite. In this research, the result shows efficient photocatalyt activity of Ag 2 S-MIPs composite for the degradation of AR and SY dye with degradation% (80%) and (84%) in the aqueous wastewater. The degradation efficiency of the Ag 2 S-MIPs composite and the Ag 2 S QD associated with non-imprinted polymers (NIPs) (i.e.Ag 2 S-NIPs composite) were calculated by using different parameters such as catalyst dose, pH value, optimum time and concentration variation and the observations are evocative. Moreover, the density functional theory (DFT) approach was also used to analyze the structural, stability/energetics, and electronic features of the organic-inorganic hybrid composites of the Ag 2 S QD with the MIPs based on (Salata, 2004)-gingerol extract. The proposed QD and MIPs (EGDMA and (Salata, 2004)-Gingerol) composite model has been detected to be the most stable because it shows the largest binding energy (BE) among the three chosen composite models. It was found out that imprinted polymers were superior in enhancing the degradation of dyes when compared to non imprinted polymers. Introducing MIPs into the valence band accelerates the catalysis properties to stabilize newly fashioned excitons that are basically generated as a result of light excitation in presence of Ag 2 S Quantum Dots (QDs) and molecular imprinted polymer (MIPs). Motivation behind this work is to address the challenges related to environmental pollution causing by organic dyes. These toxins are known to cause diverse symptoms (e.g., skin irritation, eye infection, respiratory disorders, and even cancer) once exposed through ingestion and inhalation. Through incorporation of Ag 2 S QD into MIP,the purpose of this research is to enhance the selectivity, specificity and photocatalytic activity for dyes and that work holds a potential towards environmental remediation by developing a cost effective and sustainable method for controlling pollution in water.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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