AI Article Synopsis
- The study focuses on a new material, Urea functionalized FeO@LDH, designed to remove triphenyl phosphate (tphp), an organophosphorus flame retardant, from water.
- This method showed a high adsorption capacity of 589 mg/g and a rapid adsorption rate of 49.9 mg/g/min.
- The research also found that the initial pH of the solution significantly impacts tphp adsorption, while ionic strength and organic matter have a minor effect, with electrostatic and π-π interactions being the main mechanisms for adsorption.
Article Abstract
The emergence of organophosphorus flame retardants and the efficient removal from aquatic environments have aroused increasing concerns. The Urea functionalized FeO@LDH (Urea-FeO@LDH) was prepared and used to adsorb triphenyl phosphate (tphp) for the first time. The tphp adsorption capacity was up to 589 mg g, and the adsorption rate reached 49.9 mg g min. Moreover, the influences of various environmental factors (pH, ionic strength and organic matter) on the tphp adsorption on the Urea-FeO@LDH were investigated. The initial pH of the solution significantly affected the tphp adsorption, whereas the ionic strength and HA slightly affected the adsorption. The main adsorption mechanism was attributed to electrostatic interaction and π-π interaction. We believe that urea is one of excellent functional groups for the tphp adsorption removal and the materials with urea groups as the adsorbents exhibit good prospects in the future.
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| http://dx.doi.org/10.1016/j.envpol.2020.114142 | DOI Listing |
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