Smart Adsorbents for Aquatic Environmental Remediation

Ehsan Nazarzadeh Zare; Ackmez Mudhoo; Moonis Ali Khan; Marta Otero; Zumar Muhammad Ali Bundhoo; Manvendra Patel; Anju Srivastava; Chanaka Navarathna; Todd Mlsna; Dinesh Mohan; Charles U Pittman Jr; Pooyan Makvandi; Mika Sillanpää

doi:10.1002/smll.202007840

Smart Adsorbents for Aquatic Environmental Remediation

Small. 2021 Aug;17(34):e2007840. doi: 10.1002/smll.202007840. Epub 2021 Apr 25.

Authors

Ehsan Nazarzadeh Zare¹, Ackmez Mudhoo², Moonis Ali Khan³, Marta Otero⁴, Zumar Muhammad Ali Bundhoo⁵, Manvendra Patel⁶, Anju Srivastava⁷, Chanaka Navarathna⁸, Todd Mlsna⁸, Dinesh Mohan⁶, Charles U Pittman Jr⁸, Pooyan Makvandi⁹, Mika Sillanpää^{3

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Affiliations

¹ School of Chemistry, Damghan University, Damghan, 36716-41167, Iran.
² Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Mauritius, Réduit, Moka, 80837, Mauritius.
³ Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
⁴ CESAM-Centre for Environmental and Marine Studies, Department of Environment and Planning, University of Aveiro, Campus de Santiago, Aveiro, 3810-193, Portugal.
⁵ Energy and Environment Consultant, Phoenix, 73622, Mauritius.
⁶ School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
⁷ Chemistry Department, Hindu College, University of Delhi, Delhi, 110007, India.
⁸ Department of Chemistry, Mississippi State University, Mississippi State, MS, 39762, USA.
⁹ Istituto Italiano di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, Pontedera, Pisa, 56025, Italy.
¹⁰ Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein, 2028, South Africa.
¹¹ School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg, 2050, South Africa.
¹² School of Resources and Environment, University of Electronic Science and Technology of China (UESTC), NO. 2006, Xiyuan Ave., West High-Tech Zone, Chengdu, Sichuan, 611731, P.R. China.
¹³ Faculty of Science and Technology, School of Applied Physics, University Kebangsaan Malaysia, Bangi, Selangor, 43600, Malaysia.

PMID: 33899324
DOI: 10.1002/smll.202007840

Abstract

A noticeable interest and steady rise in research studies reporting the design and assessment of smart adsorbents for sequestering aqueous metal ions and xenobiotics has occurred in the last decade. This motivates compiling and reviewing the characteristics, potentials, and performances of this new adsorbent generation's metal ion and xenobiotics sequestration. Herein, stimuli-responsive adsorbents that respond to its media (as internal triggers; e.g., pH and temperature) or external triggers (e.g., magnetic field and light) are highlighted. Readers are then introduced to selective adsorbents that selectively capture materials of interest. This is followed by a discussion of self-healing and self-cleaning adsorbents. Finally, the review ends with research gaps in material designs.

Keywords: metal ions; regeneration; selectivity; smart adsorbents; stimulus-responsive adsorbents; xenobiotics.

Publication types

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

MeSH terms

Adsorption
Environmental Restoration and Remediation*
Metals
Water Pollutants, Chemical* / analysis
Water Purification*

Substances

Metals
Water Pollutants, Chemical