Recent advances in water remediation from toxic heavy metals using biochar as a green and efficient adsorbent: A review

Hama Aziz, Kosar Hikmat; Kareem, Rzgar

doi:10.1016/j.cscee.2023.100495

Cited by 9 publications

(1 citation statement)

References 136 publications

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“…Other materials are currently being studied to decontaminate water and remove heavy metals and organic pollutants. These include biochars and biosorbents, known to adsorb chlordecone due to its strong affinity for organic matter, [19,20,21] and water falling film reactors, which, when coupled with advanced oxidation processes, simultaneously degrade these compounds [22] Here, we wanted to address this issue through the prism of supramolecular chemistry. Recent advances have shown that the use of materials with non‐covalent interactions is very promising as they can undergo reversible self‐assembly and offer advantages in terms of specific recognition properties (by size of chemical structures and functions) and recyclability [23–25] .…”

Section: Introductionmentioning

confidence: 99%

Hemicryptophane: A Viable Supramolecular Approach to Improve Chlordecone Removal from Water

Della‐Negra,

Poujade,

Muselet

et al. 2024

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The persistent organic pollutant chlordecone massively contaminates water resources of the French West Indies. Hemicryptophanes are cages capable of complexing chlordecone in organic solvents. Here we demonstrate that a hemicryptophane cage is not only able to recognize this pollutant in chloroform but is also efficient for the removal of chlordecone from water. This evidences that, beyond our previously reported proof of concept, this receptor could be apply as a direct and efficient depolluting agent, making it a promising system for applied supramolecular chemistry. A simple pH switch (basic washing) enables the release of chlordecone from the host, under its deprotonated form, allowing the empty supramolecular cage to be recycled and reused. This method for recycling the receptor, is to the best of our knowledge unprecedented.

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Section: Introductionmentioning

confidence: 99%