• reactive dye adsorption onto a novel mesoporous carbon

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 682
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a new mesoporous carbon (mcsg60) was developed using an inexpensive commercial mesoporous silica gel as a template and sucrose as the carbon source. the surface area, porosity and density of the carbon were determined. the material possesses a high specific surface area and pore volume accessible for most typical aqueous pollutants. the adsorbent material was tested in a batch dye adsorption system. the behaviour of three reactive dyes adsorbed onto mcsg60 was evaluated (naphthol blue black, nbb; reactive black 5, rb5; and remazol brilliant blue r, rbbr). the maximum adsorption capacities obtained for the dyes were: 270 mg/g for nbb; 270 mg/g for rb5; and 280 mg/g for rbbr. kinetic studies indicated that the adsorption process onto the mesoporous carbon was rapid and that equilibrium was reached in less than 1 h for all the dye systems investigated. further batch experiments showed mcsg60 successfully adsorbed the dyes over a wide ph range and at low adsorbate concentration. the adsorption potential of mcsg60 for dye removal was further evaluated using a fixed-bed adsorption column.

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