Journal
EMERGENT MATERIALS
Volume 4, Issue 5, Pages 1167-1186Publisher
SPRINGERNATURE
DOI: 10.1007/s42247-021-00197-3
Keywords
Boron; Deboronation; Adsorption; Water purification; Characterization
Categories
Funding
- Qatar National Library
- Qatar University [QUCG-CAM 20/21-4]
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This review discusses the importance of boron, its contamination sources, and recent advances in boron removal methods based on adsorption. The adsorbents for deboronation are classified based on functional groups, and the reaction mechanisms of each system are comprehensively addressed, along with a summary of progress in the field over the past 5 years. Techniques for characterizing deboronation studies, suggestions for future research and applications, and possible improvements to existing systems are also presented.
Boron is an essential micronutrient that has raised much interest, given the narrow balance between its necessity and toxicity. Both natural and anthropogenic emissions of boron into water sources can eventually deteriorate water quality and endanger the ecosystem. In this review, we first present a general outline of the importance of boron, boron chemistry in water, boron contamination, and its consequences followed by the recent progress in boron removal methods based on adsorption. The adsorbents for deboronation can generally be classified based on the functional groups present; chelating groups, metal oxides, and layered double hydroxides. To comprehensively address these adsorption methods, a detailed discussion on the reaction mechanism of each system is done followed by a summary of the progress in the field during the past 5 years. Finally, some characterization techniques used in deboronation studies and suggestions for future research and applications together with possible improvements to the existing systems are presented.
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