Polytetrafluoroethylene supported polyphenol-functionalized metal–organic framework as a bio-based membrane for efficient mercury extraction from aqueous samples
Journal of Molecular Liquids, ISSN: 0167-7322, Vol: 385, Page: 122422
2023
- 2Citations
- 3Captures
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Article Description
In this study, we have designed and synthesized a porous membrane by functionalizing the polytetrafluoroethylene (PTEF) support with natural biomass polyphenols (tannins) grafted on amino-functionalized UiO-66 metal–organic framework to give a robust, environmentally friendly polyphenol/metal–organic framework/PTFE membrane, namely PPG-UiO-66@PTFE. Then, the nominal solid was used for the efficient extraction of mercury ions from water samples before ICP-Mass measurements. The effects of some parameters such as pH, type, and volume of eluent, eluent, sample flow rate, and co-existent ions were explored and optimized. Under optimum conditions, the limit of detection was obtained at 1.5 ng/L. The results exhibited that the presence of the co-existing ions does not affect the experimental results. The PPG-UiO-66@PTFE demonstrated superior performance compared to individual materials. This bio-based porous membrane had benefits such as a wide linear range, selectivity, renewability, and real applications in laboratory settings.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0167732223012266; http://dx.doi.org/10.1016/j.molliq.2023.122422; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85163379309&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0167732223012266; https://dx.doi.org/10.1016/j.molliq.2023.122422
Elsevier BV
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