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AuthorJlassi, Khouloud
AuthorEid, Kamel
AuthorSliem, Mostafa H.
AuthorAbdullah, Aboubakr M.
AuthorChehimi, Mohamed M.
Available date2022-09-29T21:01:00Z
Publication Date2020-11-15
Publication NameSeparation and Purification Technology
Identifierhttp://dx.doi.org/10.1016/j.seppur.2020.117383
CitationJlassi, K., Eid, K., Sliem, M. H., Abdullah, A. M., & Chehimi, M. M. (2020). Calix [4] arene-clicked clay through thiol-yne addition for the molecular recognition and removal of Cd (II) from wastewater. Separation and Purification Technology, 251, 117383.‏
ISSN13835866
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85088144118&origin=inward
URIhttp://hdl.handle.net/10576/34686
AbstractA novel type of hybrid Clay/Calix[4]arene (denoted as B-S-Calix), was prepared through fast photo-induced radical-mediated thiol–yne addition between a thiolated clay and an alkynylated calix[4]arene. The photo-induced radical-mediated thiol-yne reaction is a smart, low-cost, efficient, and fast pathway for tailoring low cost, reactive, and functional clay-based materials for potential wastewater treatment applications. The obtained materials were analyzed using X-ray photoelectron spectrometry (XPS), Fourier transform infrared spectroscopy (FTIR), and proton nuclear magnetic resonance spectroscopy (HNMR), which all displayed the successful formation of B-S-Calix. The as-synthesized B-S-Calix was used as an adsorbent for toxic Cd(II) metal from wastewater compared to mercaptosilanized bentonite (B-S) at room temperature. The adsorption of Cd(II) on B-S-Calix followed Langmuir isotherm models and pseudo-second-order kinetic, with a maximum removal efficiency of (92.8%) and adsorption capacity of 114 mg g−1 within only 1.5 min at pH 8 and room temperature. The presented B-S-Calix may serve as good candidates for emergent wastewater applications.
SponsorThis work was made possible by UREP Grant no. UREP 25-091-2-034 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors.
Languageen
PublisherElsevier B.V.
SubjectBentonite
Calix[4]arene
Cd(II) removal
Heavy metals removal
Photo-induced Thiol-Yne Click chemistry
Wastewater treatment
TitleCalix[4]arene-clicked clay through thiol-yne addition for the molecular recognition and removal of Cd(II) from wastewater
TypeArticle
Volume Number251
dc.accessType Abstract Only


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