Superior adsorption and removal of doxorubicin from aqueous solution using activated carbon via thermally treated green adsorbent: isothermal, kinetic, and thermodynamic studies

• Published in: Environmental technology Vol. 45; no. 10; pp. 1969 - 1988
• Main Authors: Al-Hazmi, Gamil A. A., El-Zahhar, Adel A., El-Desouky, Mohamed G., El-Bindary, A.
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis 28-04-2024; Taylor & Francis Ltd
• Subjects: Activated carbon; Adsorbents; Adsorption; adsorption kinetics; Apricot seeds activated carbon; Aqueous solutions; Charcoal; Chemisorption; Doxorubicin; Drinking water; Endothermic reactions; Equilibrium analysis; Hydrogen-Ion Concentration; Kinetics; loading isotherms; Low cost; real watrer sample; regeneration; Seeds; Spectroscopy, Fourier Transform Infrared; Synthesis; Thermodynamics; Wastewater; Wastewater treatment; Water Pollutants, Chemical - analysis; X ray photoelectron spectroscopy; loading isotherms; Apricot seeds activated carbon; doxorubicin; regeneration; adsorption kinetics; real watrer sample
• ISSN: 0959-3330; 1479-487X
• DOI: 10.1080/09593330.2022.2159540

Activated carbon from apricot seeds (ASAC) was successfully made using a low-cost, straightforward synthesis process. With the use of various instruments, including XRD, XPS, FT-IR, SEM, and TEM, the adsorbent was demonstrated. The surface area of the ASAC that was given was also shown to be 436.8 m
2
/g. It was discovered that the synthesized ASAC has a fantastic capacity to absorb the anti-cancer medication doxorubicin hydrochloride (DOX). Based on changes in temperature, pH, and DOX concentration, The DOX adsorption behaviour's mechanism was evaluated. The adsorption capacity of ASAC for DOX was greater at pH 6.0, according to experimental data as the adsorption capacity was discovered to be 951.13 mg/g. Adsorption equilibrium analysis revealed that, when compared to the other models, the Langmuir adsorption provided the best fit to the data that were collected. Additionally, The ASAC has validated the DOX activation energy of adsorption as a chemisorption technique. The kinetics of adsorption were shown to be fitted to pseudo-second-order kinetic model. The reaction was endothermic and spontaneous, according to thermodynamic data. Innvestigation the removal efficiency of ASAC to remove DOX from real watrer sample (tap water, effluent wastewater, and impact wastewater). It was suggested by the results that ASAC was a viable option for treating wastewater and adsorbing DOX. The synthesized ASAC has noteworthy cyclability and reusability characteristics due to its high efficiency (up to five cycles) and low cost (around 86 percent).