Removal Efficiency and Mechanism of Typical PPCPs onto Novel Cyclodextrin–Graphene Oxide Composite Adsorbent in Aqueous Solutions DOI Open Access
Ziyang Zhang,

Wenhui Wang,

Fangyuan Liu

et al.

Water, Journal Year: 2025, Volume and Issue: 17(4), P. 590 - 590

Published: Feb. 18, 2025

A novel β-cyclodextrin–graphene oxide (β-CD/GO) composite adsorbent was synthesized via a hydrothermal method. Removal efficiency and mechanisms of typical pharmaceutical personal care products (PPCPs) by the β-CD/GO were investigated in aqueous solutions. The results demonstrated that successfully formed through cross-linking between β-CD GO nanosheets, exhibiting enriched hydroxyl groups, porous layered structure, good thermal stability. adsorption cimetidine (CTD), sulfamethazine (SMZ), diclofenac (DCF) onto well described pseudo-first-order pseudo-second-order kinetic models, Langmuir isotherm. maximum capacities CTD, SMZ, DCF 58.86, 35.62, 29.11 mg g−1 at 298 K, respectively. process rapid reached equilibrium after 6 h. followed monolayer mechanism an exothermic process. capacity decreased with increasing pH values ion concentrations. exhibited 17.69, 16.96, 16.23 for DCF, respectively, under 4 dosage 1.0 g/L K Due to combined impacts electrostatic interaction, hydrogen bonding, host–guest PPCPs fast efficient. superior efficacy structural stability, which highlighted its promising application elimination micropollutants from

Language: Английский

Removal Efficiency and Mechanism of Typical PPCPs onto Novel Cyclodextrin–Graphene Oxide Composite Adsorbent in Aqueous Solutions DOI Open Access
Ziyang Zhang,

Wenhui Wang,

Fangyuan Liu

et al.

Water, Journal Year: 2025, Volume and Issue: 17(4), P. 590 - 590

Published: Feb. 18, 2025

A novel β-cyclodextrin–graphene oxide (β-CD/GO) composite adsorbent was synthesized via a hydrothermal method. Removal efficiency and mechanisms of typical pharmaceutical personal care products (PPCPs) by the β-CD/GO were investigated in aqueous solutions. The results demonstrated that successfully formed through cross-linking between β-CD GO nanosheets, exhibiting enriched hydroxyl groups, porous layered structure, good thermal stability. adsorption cimetidine (CTD), sulfamethazine (SMZ), diclofenac (DCF) onto well described pseudo-first-order pseudo-second-order kinetic models, Langmuir isotherm. maximum capacities CTD, SMZ, DCF 58.86, 35.62, 29.11 mg g−1 at 298 K, respectively. process rapid reached equilibrium after 6 h. followed monolayer mechanism an exothermic process. capacity decreased with increasing pH values ion concentrations. exhibited 17.69, 16.96, 16.23 for DCF, respectively, under 4 dosage 1.0 g/L K Due to combined impacts electrostatic interaction, hydrogen bonding, host–guest PPCPs fast efficient. superior efficacy structural stability, which highlighted its promising application elimination micropollutants from

Language: Английский

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