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Authorjlassi, khouloud
Available date2020-10-22T06:59:11Z
Publication Date2020
Publication NameQatar University Annual Research Forum & Exhibition 2020
Citationjlassi k., "Rational Synthesis, Characterization, and Application of Environmentally?Friendly (Polymer?Carbon Dot) Hybrid Composite Film for Fast and Efficient UV Assisted Cd2+ Removal from Water", Qatar University Annual Research Forum and Exhibition (QUARFE 2020), Doha, 2020, https://doi.org/10.29117/quarfe.2020.0040
URIhttps://doi.org/10.29117/quarfe.2020.0040
URIhttp://hdl.handle.net/10576/16575
AbstractCarbon-dots (CDs) are of particular interest in numerous applications. However, their efficiency for heavy metal removal from wastewater was not yet reported. Herein, we rationally synthesized CDs from petroleum-coke-waste via hydrothermal treatment in the presence of ammonia.This drove the formation of outstanding photoluminescent, water-soluble, biocompatible, and high yield of monodispersed sub-5 nm CDs. The CDs are co-doped with high 10 % of N and 0.2 % of S. The as-prepared CDs possess unprecedented photoluminescent properties over broad pH range making these dots unique efficient pH sensor. chitosan (CH)-CDs hybrid hydrogel nanocomposite film were further prepared as a platform membrane for the removal Cd2+ metal from wastewater. The as prepared CH-CDs menbranes show a relatively good mechanical properties, based on stress-resistant and flexibility in order to facilitate handling. The equilibrium state was reached within 5 minutes. Intriguingly, the UV-light illuminations enhanced the Cd2+ removal efficiency of the photoluminescent CDs substantially by four times faster under. It was found that adsorption followed pseudo-second-order kinetic and Langmuir isotherm models. The maximum adsorption capacity at 25? C was found to be 112.4 mg g-1 at pH 8. This work paves the way to new applications of CDs in water treatment.
Languageen
PublisherQatar University Press
SubjectWaste management
Water soluble carbon dots
Polymer?Carbon Dot based Hybrid composite film
UV-assisted Cd2+removal.
TitleRational Synthesis, Characterization, and Application of Environmentally?Friendly (Polymer?Carbon Dot) Hybrid Composite Film for Fast and Efficient UV Assisted Cd2+ Removal from Water
TypePoster
dc.accessType Open Access


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