Zeolite modified with copper oxide and iron oxide for lead and arsenic adsorption from aqueous solutions

Research Article| July 15 2016 Zeolite modified with copper oxide and iron oxide for lead and arsenic adsorption from aqueous solutions Abdullah A. Alswat; Abdullah A. Alswat 1Department of Chemistry, Faculty of Science, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia2Department of Chemistry, Sana'a University, Sana'a, Yemen Search for other works by this author on: This Site PubMed Google Scholar Mansor Bin Ahmad; Mansor Bin Ahmad 1Department of Chemistry, Faculty of Science, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia E-mail: mansorahmad@gmail.com Search for other works by this author on: This Site PubMed Google Scholar Tawfik A. Saleh Tawfik A. Saleh 3Department of Chemistry, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2016) 65 (6): 465–479. https://doi.org/10.2166/aqua.2016.014 Article history Received: February 29 2016 Accepted: June 08 2016 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Abdullah A. Alswat, Mansor Bin Ahmad, Tawfik A. Saleh; Zeolite modified with copper oxide and iron oxide for lead and arsenic adsorption from aqueous solutions. Journal of Water Supply: Research and Technology-Aqua 1 September 2016; 65 (6): 465–479. doi: https://doi.org/10.2166/aqua.2016.014 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex How to completely remove toxic metals from water is still a serious challenge, and is the mission that faces researchers and scientists today. In this work, zeolite/copper oxide (CuO) and zeolite/iron oxide (Fe3O4) nanocomposites (NCs) were prepared via a co-precipitation method. Several techniques were used for characterization of the prepared NCs including UV-visible, powder X-ray diffraction, N2 adsorption for determining the specific surface areas (Brunauer–Emmett–Teller (BET)) and pore volumes. The morphology was investigated by field emission scanning electron microscopy. The batch adsorption experiment process was used to study the applicability of the prepared NCs to removing lead (Pb) and arsenic (As) from aqueous solutions. The effects of the adsorbent dosage, pH, initial metal concentration and contact time on the adsorption process were investigated. The obtained results revealed that in 40 minutes 0.15 g of prepared zeolite/Fe3O4 (NCs) was able to remove 97.2% of Pb and 96.8% of As from 100 mg/L aqua solutions at a pH of between 4 and 6. The Langmuir isotherm model showed higher correlation coefficients and provided better agreement with the experimental data. The adsorption kinetic is a chemi-physisorption process that follows the pseudo second-order kinetic model. adsorbent, isotherm, kinetic, nanocomposites, zeolite © IWA Publishing 2016 You do not currently have access to this content.