Effect of pH on Copper, Zinc, and Chromium Removal from Water Using Magnetic SBA-15@Fe₃O₄ as an Adsorbents
Year: 2026
Type: article
Abstract: Magnetic mesoporous silica adsorbents offer potential for eliminating heavy metals ions from aquesous while facilitating substantial recovery. In this study, SBA-15(C) and SBA-15(E)was modified with Fe₃O₄ using calcination and acidic extraction of Pluronic P123, referred as SBA-15@Fe₃O₄(C) and SBA-15@Fe₃O₄(E). These adsorbents were evaluated for copper removal under different pH conditions. The more effective material was further assessed for zinc and chromium removal. FT-IR, scanning electron microscopy, and energy-dispersive X-ray spectroscopy were used for adsorbents characterization. Both materials adsorbed copper ions, particularly near neutral pH. SBA-15@Fe₃O₄(C) showed higher copper removal potential than SBA-15@Fe₃O₄(E), possibly because calcination removed the surfactant more effectively. Microscopy showed a spherical morphology, and elemental analysis confirmed the presence of Fe₃O₄ on SBA-15 (C). Calcined magnetic SBA-15(C) is a promising adsorbent for removal.of Cu,Zn and Cr from pure aqueous. Future work should examine adsorption kinetics, isotherms, and surface coatings to improve removal efficiency.
Source: Journal of Pharma and Biomedics
Institution: Dawood University of Engineering and Technology
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7220430921