Electrochemical sensing base for hazardous herbicide aclonifen using gadolinium niobate (GdNbO4) nanoparticles-actual river water and soil sample analysis

Praveen Kumar Gopi; Bhuvanenthiran Mutharani; Shen-Ming Chen; Tse-Wei Chen; Gaber E Eldesoky; Mohammad Ajmal Ali; Saikh M Wabaidur; Firdoz Shaik; Chang Yen Tzu

doi:10.1016/j.ecoenv.2020.111285

Electrochemical sensing base for hazardous herbicide aclonifen using gadolinium niobate (GdNbO₄) nanoparticles-actual river water and soil sample analysis

Ecotoxicol Environ Saf. 2021 Jan 1:207:111285. doi: 10.1016/j.ecoenv.2020.111285. Epub 2020 Sep 15.

Authors

Praveen Kumar Gopi¹, Bhuvanenthiran Mutharani¹, Shen-Ming Chen², Tse-Wei Chen³, Gaber E Eldesoky⁴, Mohammad Ajmal Ali⁵, Saikh M Wabaidur⁴, Firdoz Shaik⁶, Chang Yen Tzu¹

Affiliations

¹ Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan.
² Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan. Electronic address: smchen1957@gmail.com.
³ Research and Development Center for Smart Textile Technology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan; Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom.
⁴ Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
⁵ Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
⁶ Department of Chemistry, Guangdong Technion-Israel Institute of Technology, Shantou, China.

PMID: 32931964
DOI: 10.1016/j.ecoenv.2020.111285

Abstract

The present work scrutinized the voltammetric analysis of hazardous herbicide aclonifen (ACF) in actual soil and river water samples utilizing the electrochemical method. The electrochemical sensing device was fabricated for the determination of ACF using gadolinium niobate (GdNbO₄) nanoparticles modified glassy carbon electrode (GCE). The novel GdNbO₄ sensing material was prepared via a simple co-precipitation method. Several characterization techniques (TEM, EDS, XRD, XPS, and BET) were utilized to analyze the structural features of the GdNbO₄. The enhanced electrochemical behavior of GdNbO₄ modified GCE towards ACF was observed compared to bare GCE. The cyclic voltammetry response revealed that the prepared sensor shows the lower negative potential with a dramatic increase in the peak current of ACF compared to bare GCE. In the differential pulse voltammetry, the limit of detection (1.15 nM) and sensitivity (23 μA μM^-1 cm^-2) of the ACF on the GdNbO₄ modified GCE was comparatively superior to the formerly proposed ACF based sensor. This sensor reveals good selectivity, repeatability, reproducibility, and long-term stability. The reliability of the sensor exhibits satisfactory recovery results for ACF detection in river water and soil samples.

Keywords: Co-precipitation method; Gadolinium niobate; Herbicide; High electrocatalytic activity; River water and soil samples.

MeSH terms

Aniline Compounds / analysis*
Carbon
Catalysis
Electrochemical Techniques / methods*
Electrodes
Environmental Monitoring / methods*
Herbicides / analysis*
Limit of Detection
Nanoparticles / chemistry*
Reproducibility of Results
Rivers / chemistry
Soil / chemistry
Soil Pollutants / analysis*
Surface Properties
Water Pollutants, Chemical / analysis*

Substances

Aniline Compounds
Herbicides
Soil
Soil Pollutants
Water Pollutants, Chemical
aclonifen
Carbon