Investigation of Orange G Adsorption by Ag/CMK-3 Nano-composite

In this work carbon mesoporous nano adsorbent (CMK-3) and also silver doped mesoporous carbon nano-composite were prepared by applying a hard template of silicate precursor SBA-15 and characterized by N2 adsorption-desorption, transmission electron microscopy (TEM) andenergy dispersive X-ray analysis (EDX). These prepared materials were applied as adsorbents for Orange G dye and its removal from wastewater and their adsorption capability were compared with each other. Effects of contact time, pH, initial dye and salt concentrations on dye removal efficiency were investigated. Experimental results show that it takes an hour for both nano adsorbents to establish equilibrium with Orange G and Ag/CMK-3 nano-composite has more efficiency for Orange G adsorption than CMK-3. Furthermore, dye removal increased in high concentrations of initial dye and salt, but decreased with increasing temperature and pH.