ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Green additions for creating carbon-coated zeolite with nano-iron support for acetone adsorption from liquid solution

Atyaf Khalid Hammed, Khulood W. Al-Jareh, and Nibal Khaleel Mousa

Center for Environmental, Water and Renewable Research and Technology, Scientific Research Commission, Ministry of Higher Education and Scientific Research, Baghdad, Iraq

E-mail: atyaf.ump2015@gmail.com

Received: 27 May 2025  Accepted: 19 August 2025

Abstract:

Environmentally, different types of adsorbents were investigated for the removal of organic substrate in aqueous solution. The adsorption of acetone (AC, CH₃)₂CO) by nano-zero iron supported onto zeolite (NZI\Z) and supported onto carbon zeolite (NZI\CZ) was directed through batch adsorption process. The new adsorbents were prepared via the reduction method for the ferric sulfate hex hydrate by using sodium borohydride as reducing agent. Both of the adsorbents were described by the Fourier transform infrared spectroscopy (FTIR), the Brunner–Emmett–Teller (S_BET), and X-ray powder diffraction (XRD). The (S_BET) surface area of the adsorbents was viewed with values of 118.54 m²/g and 183.63 m²/g for NZI/Z and NZI/CZ, respectively. The adsorption process accomplished after 60 min and 100 min for NZI/Z and NZI/CZ, respectively, with initial concentration of 20 mg/l of (AC) solution. The pH for the adsorption process was ranged from 2 to 10. The uptake of the (AC) evacuation was higher for the carbon-coated adsorbent with a value of 57.84 mg/g in comparison with non-coated adsorbent with uptake value of 47.28 mg/g. The isotherm studies were performed at different concentrations of AC ranging from 10 to 40 mg/l. The Langmuir and Freundlich isotherm models were used to fit the adsorption studies of the process. The higher value of the adsorption coefficient (R²) is 0.9987 for Freundlich rather than Langmuir for fixing the result of multilayer adsorption as a result for the carbon layer development. The kinetic studies were carried out via the pseudo-second and pseudo-first order which were more fitting the adsorption of AC onto NZI/CZ. Subsequently, the adsorption of AC onto the carbon-covered adsorbent was demonstrated as well-accepted and an affected adsorbent for the removal of AC from the aqueous solution.

Keywords: Acetone adsorption; Carbon-coated materials; Zero iron preparation; Supporting materials; Isotherm studies

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-025-04339-3

Chemical Papers 79 (12) 8605–8617 (2025)