Dynamic light scattering and zeta-potential as a tool for understanding the mechanism of pesticides binding toward individual components of transition metal nanoparticles and graphene oxide hybrids. Issue 12 (2nd December 2022)

• Record Type: Journal Article
• Authors: Hassan, Zia Ul; Abbas, Zameer; Bakht, Khush; Ayoub, Muhammad Haris; Ahmad, Shehryar; Khan, Asad Muhammad; Farooq, Umar; Khan, Muhammad Saqib; Shaikh, Ahson Jabbar
• Is Part Of: Journal of environmental science and health. Volume 57:Issue 12(2022)
• Page Start: 932
• Page End: 947
• Publication Date: 2022-12-02
• Subjects: λ-Cyhalothrin -- imidacloprid -- metsulfuron-methyl -- Fe NPs -- Co NPs -- Ni NPs -- Cu NPs -- hydrodynamic size -- stability -- commercial formulation; Pesticides -- Environmental aspects -- Periodicals; Food contamination -- Periodicals; Agricultural wastes -- Environmental aspects -- Periodicals; Ecology -- periodicals; Pesticides -- toxicity -- periodicals; Food Contamination -- periodicals; 363.73
• DOI: 10.1080/03601234.2022.2147348
• Languages: English
• ISSNs: 0360-1234

Abstract

Abstract: Pesticides present in their commercial formulations are studied for their preferable binding toward carbon-based graphene oxide (GO) or transition metal nanoparticles (Fe, Co, Ni, and Cu), present as hybrids. This simple study also reveals the mechanism of interaction of few selected different classes of pesticides, namely, λ-cyhalothrin, imidacloprid, and metsulfuron-methyl toward these hybrids. Individually, to study this comparative binding when hybrids are not used, the understanding of preferred binding toward any of these selected compounds could be challenging, costly, and time-consuming. Dynamic light scattering (DLS) is used to study the changes observed for hydrodynamic radius and zeta potential for the stability of the resulting products. This simple method can also be extended to identify the binding mechanism for other diverse set of combinations. These studies are supported by binding of GO with nanoparticles in batch adsorption and the best fit using Langmuir and Freundlich isotherms is presented. Moreover, pesticide adsorption toward GO-nanoparticle composites is also evidenced.