Biological synthesis of bimetallic hybrid nanocomposite: A remarkable photocatalyst, adsorption/desorption and antimicrobial agent
Xue Huanga, Ayesha Zafarb, Khalil Ahmadc, Murtaza Hasana d✉, Tuba Tariqd, Sheng Gonga, Shahbaz Gul Hassane, Jianjin Guoe, Hafiz Umer Javeda, Xugang Shua✉
- aSchool of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, PR China
- bDepartment of Biomedical Engineering, College of Future Technology, Peking University, Beijing 100871, PR China
- cUniversity of Management and Technology (UMT) Sialkot Campus, 51310, Pakistan
- dDepartment of Biotechnology, Faculty of Biological and Chemical Science, The Islamia University of Bahawalpur, 63100, Pakistan
- eSchool of Information Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, PR China
- ✉Corresponding author
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Abstract
Herein bimetallic nanocomposites Ag with nickel and cobalt were synthesized by using the extract of W. coagulans. Nanocomposites synthesis were confirmed by using UV-Visible at 430 nm for and 504 nm for Ag@Ni and Ag@Co respectively. From XRD technique it was established that nanocomposites have crystalline nature and face-centered cubic structure. A strong antibacterial behavior toward Gram-positive Bacteria Staphylococcus aureus with 48.9% and 32.1% inhibition for Ag@Co and Gram-negative bacteria E. coli with 33.1% and 25.7% inhibition zone were observed for Ag@Ni respectively. Next the composites exhibited electrifying 90.2% and 82% degradation for Ag@Co and Ag@Ni against methyl orange (MO) through photocatalysis. Furthermore, Ag@Ni and Ag@Co nanocomposites showed efficient adsorption capacity of heavy metal (lead) at pH 7 within 45 min and 90% for adsorptive removal of lead ions from water with significant antioxidant potential. The current finding suggested, silver-based nanocomposites as an appropriate and promising candidate for efficient adsorptive and catalytic potentials removal of toxic pollutants.