Aluminum dispersed bamboo activated carbon production for effective removal of Ciprofloxacin hydrochloride antibiotics: Optimization and mechanism study. (1st January 2022)

• Record Type: Journal Article
• Authors: Guellati, Amel; Maachi, Rachida; Chaabane, Toufik; Darchen, André; Danish, Mohammed
• Is Part Of: Journal of environmental management. Volume 301(2022)
• Publication Date: 2022-01-01
• Subjects: Activated carbon -- Aluminum oxide -- Bamboo -- Ciprofloxacin hydrochloride -- Characterization -- Optimization; Environmental policy -- Periodicals; Environmental management -- Periodicals; Environment -- Periodicals; Ecology -- Periodicals; 363.705
• DOI: 10.1016/j.jenvman.2021.113765
• Languages: English
• ISSNs: 0301-4797

Abstract

Abstract: The central composite rotatable design (CCD) of response surface methodology (RSM) was used to optimize aluminum dispersed bamboo activated carbon preparation. The independent variables selected for optimization are activating agent (AlCl3 ) concentration (mol/L), activation temperature (°C), and activation time (min.). The independent variable's response change was observed through the percentage adsorption efficiency of Ciprofloxacin hydrochloride (CIP) antibiotics. The maximum CIP adsorption efficiency was found to be 93.6 ± 0.36% (13.36 mg/g) for the adsorbent prepared at AlCl3 concentration 2.0 mol/L, activation temperature 900 °C, and activation time 120 min. The adsorption efficiency was recorded at the natural pH (7.9) of the adsorbent (3 g/L)-adsorbate (50 mL solution of 50 ppm) mixture. The Al-dispersed bamboo activated carbon was characterized for its surface morphology, surface elemental compositions, molecular crystallinity, surface area, pore morphology, and surface functional groups. The mechanism of adsorbent surface formation and CIP adsorption sites were explored. The characterization data and mechanism study will help in deciding possible future applications in other fields of study. Graphical abstract: Image 1 Highlights: Optimization of Al-dispersed bamboo activated carbon (ABAC) was performed using RSM. Optimized ABAC has 263.5 m 2 /g BET surface area and 3.9 nm pore dia. Removal efficiency of CIP onto ABAC was 93.6 ± 0.45%. Presence of Al at the surface of ABAC guided the CIP adsorption. Cationic surface charge in ABAC attracts the anionic CIP molecules.