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Implications of layered double hydroxides assembled biochar composite in adsorptive removal of contaminants: Current status and future perspectives

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Item embargoed until 2022-05-28. Restrictions imposed by the publisher
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Date
2020
Author(s)
Vithanage, Meththika
Ashiq, Ahmed
Ramanayaka, Sammani
Bhatnagar, Amit
Unique identifier
10.1016/j.scitotenv.2020.139718
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Citation
Vithanage, Meththika. Ashiq, Ahmed. Ramanayaka, Sammani. Bhatnagar, Amit. (2020). Implications of layered double hydroxides assembled biochar composite in adsorptive removal of contaminants: Current status and future perspectives.  Science of the total environment, 737, 139718. 10.1016/j.scitotenv.2020.139718.
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© 2020 Elsevier B.V.
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CC BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/
Abstract

In recent years, biochar composites have received considerable attention for environmental applications. This paper reviews the current state of research on Layered Double Hydroxides (LDHs) tailored biochar composites in terms of their synthesis methods, characteristics, and their use as adsorbents for the removal of various pollutants from water, highlighting and discussing the key advancement in this area. The adsorption potential of LDHs-biochar composites for different inorganic and organic contaminants, important factors affecting composites' properties and the adsorption process, and the mechanisms involved in adsorption are discussed in this review. Though the adsorption capacities are high for the composites studied, partition coefficient which suggest the performance of composites remain low for most adsorbents. Despite the recent progress in the synthesis of LDHs-biochar composites, further research is needed to improve the performance of composites for different classes of aquatic pollutants, and to test their applicability in pilot-scale with real wastewater under real environmental conditions.

Subjects
LDHs-biochar composite   intercalation   adsorption   layered structure   water treatment   pollutants removal   
URI
https://erepo.uef.fi/handle/123456789/8282
Link to the original item
http://dx.doi.org/10.1016/j.scitotenv.2020.139718
Publisher
Elsevier BV
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  • Luonnontieteiden ja metsätieteiden tiedekunta [1109]
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