Selective-adsorption removal of methyl orange(MO) by CTAB-assisted AgBr powder

Abstract

The AgBr powder was prepared by a hydrothermal method via a reaction of AgNO₃ with hexadecyltrimethy ammonium bromide (CTAB), namely, CTAB-assisted synthesis method. The selective-adsorption ability of the AgBr samples for the MO was evaluated in a MO and Rhodamine B mixed solution via ultraviolet-visible spectra. Compared with the AgBr sample prepared from NaBr solution, it was found that the AgBr powder synthesized by CTAB-assisted method exhibited high selective-adsorption performance for the MO in the MO-RhB mixed system. After aged for 60 min, the MO could be efficiently removed by CTABassisted AgBr powder. Considering the potential wide applications of the selective adsorption, the CTABassisted AgBr provides a new and efficient method for the removal of various dyes and is possible to be widely used in industries.

Keywords

powder technology / selectivity adsorption / methyl orange / CTAB / AgBr

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