We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Synthesis and characterization of surface-modified magnetic mesoporous silicate materials for phosphate adsorption.
- Authors
GENÇER, Ayşegül; UYSAL KARATAŞ, Burcu; TOPEL, Önder; KİRAZ, Nadir
- Abstract
The magnetic mesoporous silica material, Mag-MCM-41, was synthesized by coating magnetite (Fe3O4) nanoparticles with a mesoporous material called MCM-41. Mag-MCM-41 and modified nanomaterials Mag-MCM-41-NN and Mag-MCM-41-NNFe+3 which were modified with aminopropyl functional groups. In water and wastewater, phosphate anions are considered significant contaminants due to their detrimental impact on the environment. They promote the growth of algae, leading to eutrophication. The purpose of this study is to investigate the removal of phosphate anions from aqueous solutions using modified magnetic silica particles. The Mag-MCM-41 material exhibits hexagonal properties and belongs to the class of "mesoporous" materials. It has a surface area of 923 m².g-1, which was determined through N2 adsorption-desorption isotherms, FTIR, TEM, BET, and SAXS analysis. Kinetic and adsorption isotherm studies were conducted using Mag-MCM-41, Mag-MCM-41-NN, and Mag-MCM-41-NN-Fe+3 adsorbents to examine the behavior of phosphate anions. The kinetic and adsorption isotherm studies of phosphate anions revealed that the adsorption process on Mag-MCM-41, Mag-MCM-41-NN, and Mag-MCM-41-NN-Fe+3 adsorbents followed the chemical adsorption mechanism. Phosphate adsorption on all adsorbents occurred in a monolayer, and the MCM-41-NN-Fe+3 adsorbent exhibited the highest maximum adsorption capacity (qm) value of 112.87 mg.g-1 compared to the other adsorbents.
- Subjects
MESOPOROUS materials; MCM-41 (Mesoporous material); MESOPOROUS silica; ADSORPTION (Chemistry); ADSORPTION isotherms; ADSORPTION capacity; ALGAL growth
- Publication
Turkish Journal of Chemistry, 2024, Vol 48, Issue 1, p50
- ISSN
1300-0527
- Publication type
Article
- DOI
10.55730/1300-0527.3638