Preparation of Fe3O4/Bentonite Nanocomposite from Natural Iron Sand by Co-precipitation Method for Adsorbents Materials

Quality in Research: International Symposium on Materials, Metallurgy, and Chemical Engineering

材料科学;冶金学;化学工业

Sebayang, Perdamean^1,2 ; Kurniawan, Candra^1 ; Aryanto, Didik^1 ; Setiadi, Eko Arief^1 ; Tamba, Konni^3 ; Djuhana^2 ; Sudiro, Toto^1

Research Center for Physics - Lembaga Ilmu Pengetahuan Indonesia, Bld. 440-442 Puspiptek Office Area, Tangerang Selatan

15314, Indonesia^1

Departement of Mechanical Engineering, Universitas Pamulang, Jl. Surya Kencana No. 1, Tangerang Selatan

15417, Indonesia^2

Department of Physics, Universitas Negeri Medan, Jl. W. Iskandar Pasar V Medan Estate, Medan

20221, Indonesia^3

关键词: Adsorbent materials;    Adsorption method;    Average particle size;    Coprecipitation method;    Fe3O4 nanoparticles;    Molecular bonding;    Optimum conditions;    Spinnel structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/316/1/012053/pdf
DOI  :  10.1088/1757-899X/316/1/012053

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

An adsorption method is one of the effective ways to filter the heavy metals wastes in aqueous system. In this paper, the Fe3O4/bentonite nanocomposites were successfully prepared from natural iron sand by co-precipitation method. The chemical process was carried out by dissolving and hot stirring the milled iron sand and bentonite in acid solution and precipitating it by NH4OH. The sediment was then washed using distilled water to neutralize pH and dried at 100 °C for 5 hours to produce Fe3O4/bentonite powders. The samples were characterized by XRD, FTIR, BET, TEM, VSM and AAS. All samples were composed by Fe3O4single phase with a spinnel structure and lattice parameter of 8.373 Å. The transmittance peak of FTIR curve proved that the Fe3O4particles and bentonite had a molecular bonding. The addition of bentonite to Fe3O4nanoparticles generally reduced the magnetic properties of Fe3O4/bentonite nanocomposites. The optimum condition of 30 wt% bentonite resulted 105.9 m2/g in surface area, 14 nm in an average particle size and 3.2 nm in pore size. It can be used as Cu and Pb adsorbent materials.