Preparation of Iron-Oxide Coated Porous Ceramics Filter and Adsorption and Degradation on Methylene Blue

Fang Wen Li; Hai Wu Jia; Song Jiang Ma; Mei Ling Wu; Xiang Jiang Wu

doi:10.4028/www.scientific.net/AMR.97-101.1285

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Preparation of Iron-Oxide Coated Porous Ceramics Filter and Adsorption and Degradation on Methylene Blue

Abstract:

The aim of the present work is to obtain iron-oxide coated porous ceramics filter (IOCPCF) via dip-coating and test its adsorption and degradation for methylene blue (MB). Porous ceramics filter (PCF) and ferric nitrate were used as substrate and modifier respectively. IOCPCF was characterized by spectrophotometer, X-ray diffraction, scanning electron microscopy, specific analyzer and Fourier transform infrared spectroscopy. The effect of its structure and performance on adsorption and degradation of MB aqueous solution was investigated. The results indicated that the average pore diameter, specific surface area and porosity of IOCPCF were 11.36 nm, 4.987 m2/g and 58.63% respectively. The major crystalline phase of iron coat was α-Fe2O3 which took on porous framework. Using the prepared material, the decoloration conversion for MB aqueous solution can reach 72.06% in 300min and be increased by 21.59% compared with original PCF.