Seth, Malobi and Jana, Sunirmal (2022) Green synthesis of hierarchically structured Ag-Cu2O on cotton fabric with sustained antimicrobial activity and on-demand oil-water separation ability. Cellulose, 29 (8). pp. 4703-4724. ISSN 0969-0239

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Abstract

Film deposition/modification of cotton fabric surface is an effective way to impart multiple functionalities towards a broad range of applications. In this work, we demonstrate a facile approach for the green fabrication of hierarchical hollow structures of Ag-Cu2O on cotton fabric (ACN). The effect of key parameters such as time, temperature, precursor concentrations, and type of substrates upon the formation of a unique mud-dauber wasp nest-like structure has been studied and also the formation mechanism of the structure has been proposed. The fabric shows underwater superoleophobicity owing to the presence of hierarchical surface structures and after modification with hexadecyltrimethoxysilane (ACNS), it also shows superhydrophobicity. By virtue of switchable super-wettability, the fabric has been used for on-demand separation of light oil-water and heavy oil-water mixtures with similar to 99% separation efficiency and superior reusability. In addition, the coated fabric, ACNS exhibits an excellent self-cleaning ability towards solid and liquid contaminants. Moreover, the coated fabric, ACN shows antimicrobial activity towards bacteria E. coli and S. aureus and fungi C. albicans with 100% microbial reduction efficiency. The superhydrophobic cotton fabric (ACNS) has been employed to enhance the longevity of antimicrobial activity by hindering the uninhibited release of copper and silver ions. As a result, an efficient and sustainable antimicrobial activity up to 90 days has been achieved. This modification strategy could be useful for advancing research in the field of surface science.

Item Type:	Article
Subjects:	Environment and Pollution
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	21 Sep 2023 07:13
Last Modified:	21 Sep 2023 07:13
URI:	http://cgcri.csircentral.net/id/eprint/5526

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