Fe-based MOFs as promising adsorbents and photocatalysts for re-use water contained arsenic: Strategies and challenges

Monika Malhotra; Balvinder Kaur; Shilpa Patial; Kusum Sharma; Rohit Kumar; Pardeep Singh; Sourbh Thakur; Phuong V Pham; Tansir Ahamad; Quyet Van Le; Van-Huy Nguyen; Pankaj Raizada; Vatika Soni

doi:10.1016/j.chemosphere.2024.141786

Fe-based MOFs as promising adsorbents and photocatalysts for re-use water contained arsenic: Strategies and challenges

Chemosphere. 2024 Mar 25:141786. doi: 10.1016/j.chemosphere.2024.141786. Online ahead of print.

Authors

Affiliations

¹ School of Advanced Chemical Sciences, Faculty of Basic Sciences, Shoolini University, Solan, HP 173229, India.
² Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100, Gliwice, Poland.
³ Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
⁴ Department of Chemistry, College of Science, King Saud University, Saudi Arabia.
⁵ Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
⁶ Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India. Electronic address: vhnguyen.ChE@gmail.com.
⁷ School of Advanced Chemical Sciences, Faculty of Basic Sciences, Shoolini University, Solan, HP 173229, India. Electronic address: pankajchem1@gmail.com.

PMID: 38537716
DOI: 10.1016/j.chemosphere.2024.141786

Abstract

Arsenic (As) contaminated water, especially groundwater reservoirs, is a major issue worldwide owing to its hazardous consequences on human health and the global environment issues. Also, irrigating agricultural fields with As-contaminated water not only produces an accumulation of As in the soil but also compromises food safety due to As entering into agricultural products. Hence, there is an urgent need to develop an efficient method for As removal in water. Fe-based MOFs have attained special attention due to their low toxicity, high water stability, better physical and chemical properties, and high abundance of iron. The arsenic species removal by Fe-MOF follows the adsorption and oxidation mechanism where As (III) converts into As (V). Moreover, the adsorption mechanism is facilitated by electrostatic interactions, H-bonding, acid-base interaction, hydrophobic interactions, van der Waals forces, π-π stacking interactions, and coordinative bindings responsible for Fe-O-As bond generation. This review thoroughly recapitulates and analyses recent advancements in the facile synthesis and potential application of Fe-based MOF adsorbents for the elimination of As ions. The most commonly employed hydro/solvothermal, ultrasonic, microwave-assisted, mechanochemical, and electrochemical synthesis for Fe-MOF has been discussed along with their adsorptive and oxidative mechanisms involved in arsenic removal. The effects of factors like pH and coexisting ions have also been discussed. Lastly, the article also proposed the prospects for developing the application of Fe-based MOF in treating As-contaminated water.

Keywords: Adsorption; Arsenic removal; As(III) and As(V); Fe-based MOFs; Oxidation.

Publication types

Review