Electrochemical detection of arsenic (III) hazardous chemicals using cubic CsPbBr3 single crystals: Structural insights from DFT study

Karthik Kumar Chinnakutti; Madappa C Maridevaru; Reshma Kaimal; Naveena Paramasivam; A M Kamalan Kirubaharan; Jayaraman Theerthagiri; Aruna Kumari M L; Sivakumar Manickam; Sambandam Anandan; Myong Yong Choi

doi:10.1016/j.envres.2023.115940

Electrochemical detection of arsenic (III) hazardous chemicals using cubic CsPbBr₃ single crystals: Structural insights from DFT study

Environ Res. 2023 Jul 15:229:115940. doi: 10.1016/j.envres.2023.115940. Epub 2023 Apr 18.

Affiliations

¹ Department of Chemistry, Vinayaka Missions Kirupananda Variyar Arts and Science College, Vinayaka Missions Research Foundation (Deemed to Be University), Salem, 636308, India. Electronic address: karthickumar.c.k@gmail.com.
² Nanomaterials and Solar Energy Conversion Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India.
³ Condensed Matter Theory Lab, Department of Physics, National Institute of Technology, Tiruchirappalli, 620015, India.
⁴ Coating Department, Centre for Functional and Surface Functionalised Glass, Alexander Dubcek University of Trencin, Trencin, 91150, Slovakia.
⁵ Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea.
⁶ Department of Chemistry, The Oxford College of Science, Bengaluru, Karnataka, 560102, India.
⁷ Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Jalan Tungku Link Gadong, Bandar Seri Begawan, BE1410, Brunei Darussalam.
⁸ Nanomaterials and Solar Energy Conversion Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India. Electronic address: sanand@nitt.edu.
⁹ Core-Facility Center for Photochemistry & Nanomaterials, Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea. Electronic address: mychoi@gnu.ac.kr.

PMID: 37080276
DOI: 10.1016/j.envres.2023.115940

Abstract

Long-term exposure to the highly toxic heavy metal arsenic can harm ecological systems and pose serious health risks to humans. Arsenic pollutant in water and the food chain must be addressed, and active prompt detection of As(III) is essential. The development of an effective detection method for As(III) ions is urgently needed to slow the alarming growth of arsenic pollution in the environment and safeguard the well-being of future generations. This study presents the results of our exhaustive investigation into cubic CsPbBr₃ single crystals, the glassy carbon (GC) electrode modification with CsPbBr₃ single crystals prepared by direct solvent evaporation, as well as our observations of the material's remarkable electrocatalytic properties and exceptional anti-interference sensing of As(III) ions in neutral pH media. The developed CsPbBr₃/GC is exceptionally useful for the ultra-sensitive and specific identification of arsenic in water, exhibiting a detection limit of 0.381 μmol/L, a rapid response across a defined range of 0.1-25 μmol/L, and an ultra-sensitivity of 0.296 μA/μmolL^-1. CsPbBr₃/GCE (prepared without a specific reagent) is superior to other modified electrodes used as sensors in electrocatalytic activity, detection limit, analytical sensitivity, and stability response.

Keywords: Arsenic detection; CsPbBr(3); Electrochemical sensor; Single crystal; Solvent evaporation process.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Arsenic* / analysis
Carbon / chemistry
Electrochemical Techniques / methods
Hazardous Substances
Humans
Limit of Detection
Water

Substances

Arsenic
Hazardous Substances
Water
Carbon