Adsorption of diclofenac on the alumina/graphene oxide composite

Adsorption of diclofenac on the alumina/graphene oxide composite Full article

Journal

Russian Chemical Bulletin
ISSN: 1573-9171 , E-ISSN: 1066-5285

Output data

Year: 2025, Volume: 74, Number: 11, Pages: 3342-3349 Pages count : 8 DOI: 10.1007/s11172-025-4809-x

Authors

Kurmysheva A.Yu. ¹ , Vedenyapina M.D. ² , Kuznetsova E.V. ¹ , Pinargote N.W.Solís ¹

Affiliations

1	Moscow State University of Technology “STANKIN”, 3a Vadkovsky per., 127055, Moscow, Russian Federation
2	N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991, Moscow, Russian Federation

New granulated adsorbent Al2O3 containing 0.25% graphene oxide (GO) was synthesized by spray drying, and the adsorption of diclofenac from aqueous solutions was studied. Diclofenac adsorption was carried out at room temperature at different pH values and adsorption times. The mechanism of diclofenac adsorption obeys the Langmuir model. The adsorbate molecules tend to cover homogeneous surface sites by a monolayer, and the adsorbate—adsorbate interactions are negligible in the range of low and medium surface coverages. The maximum adsorption capacity of the Langmuir monolayer was 29.67 mg g−1. The obtained results show that the Al2O3—0.25 vol.% GO adsorbent is suitable for the production of adsorbents for additional purification of wastewater from diclofenac.

Kurmysheva A.Y. , Vedenyapina M.D. , Kuznetsova E.V. , Pinargote N.W.S.
Adsorption of diclofenac on the alumina/graphene oxide composite
Russian Chemical Bulletin. 2025. V.74. N11. P.3342-3349. DOI: 10.1007/s11172-025-4809-x WOS Scopus OpenAlex

Submitted:	Dec 18, 2024
Published online:	Jan 19, 2026

Web of science:	WOS:001665373400021
Scopus:	2-s2.0-105027836917
OpenAlex:	W7124722815

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OpenAlex	Нет цитирований
Scopus	Нет цитирований