A strategy for As(III) determination based on ultrafine gold nanoparticles decorated on magnetic graphene oxide

Huazhong Liu; Mehdi Baghayeri; Amirhasan Amiri; Fatemeh Karimabadi; Marziyeh Nodehi; Maryam Fayazi; Behrooz Maleki; Ehsan Nazarzadeh Zare; Afsaneh Kaffash

doi:10.1016/j.envres.2023.116177

A strategy for As(III) determination based on ultrafine gold nanoparticles decorated on magnetic graphene oxide

Environ Res. 2023 Aug 15;231(Pt 2):116177. doi: 10.1016/j.envres.2023.116177. Epub 2023 May 16.

Authors

Huazhong Liu¹, Mehdi Baghayeri², Amirhasan Amiri³, Fatemeh Karimabadi⁴, Marziyeh Nodehi⁴, Maryam Fayazi⁵, Behrooz Maleki⁶, Ehsan Nazarzadeh Zare⁷, Afsaneh Kaffash⁸

Affiliations

¹ Department of Basic Courses, Wuhan Donghu University, Wuhan, China; School of Physics and Telecommunications, Huanggang Normal University, Huanggang, China; Artificial Intelligence School, Wuchang University of Technology, Wuhan, China.
² Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran. Electronic address: m.baghayeri@hsu.ac.ir.
³ Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
⁴ Department of Chemistry, Faculty of Science, Hakim Sabzevari University, PO. Box 397, Sabzevar, Iran.
⁵ Department of Environment, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.
⁶ Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
⁷ School of Chemistry, Damghan University, Damghan, 36716-45667, Iran.
⁸ Department of Internal Medicine, Faculty of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran.

PMID: 37201707
DOI: 10.1016/j.envres.2023.116177

Abstract

In this work, a new dendrimer modified magnetic graphene oxide (GO) was used as a substrate for electrodeposition of Au nanoparticles. The modified magnetic electrode was employed for sensitive measuring of As(III) ion as a well-established human carcinogen. The prepared electrochemical device exhibits excellent activity towards As(III) detection using the square wave anodic stripping voltammetry (SWASV) protocol. At optimum conditions (deposition potential at -0.5 V for 100 s in 0.1 M acetate buffer with pH 5.0), a linear range from 1.0 to 125.0 μgL^-1 with a low detection limit (calculated by S/N = 3) of 0.47 μg L^-1 was obtained. In addition to the simplicity and sensitivity of the proposed sensor, its high selectivity against some major interfering agents, such as Cu(II) and Hg(II) makes it an appreciable sensing tool for the screening of As(III). In addition, the sensor revealed satisfactory results for detection of As(III) in different water samples, and the accuracy of obtained data were confirmed by inductively coupled plasma atomic emission spectroscopy (ICP-AES) setup. Accounting for the high sensitivity, remarkable selectivity and good reproducibility, the established electrochemical strategy has great potential for analysis of As(III) in environmental matrices.

Keywords: As(III); Au nanoparticles; Magnetic electrode; Stripping voltammetry; Water sample.

MeSH terms

Gold* / chemistry
Humans
Magnetic Phenomena
Metal Nanoparticles* / chemistry
Reproducibility of Results

Substances

graphene oxide
Gold