Multi Wall Carbon Nanotube Surface Modification and Adsorption Performance of Cu2+
Mixed acid processed Multi-walled carbon nanotubes (MWCNTs)were used as adsorbent to adsorb Cu2+ in artificial wastewater in this . In this study, the effect factors of Cu2+ adsorption capacity, such as initial concentration of Cu2+, absorbent contact time and dosage, etc were investigated respectively in the solution at neutral pH. The results show that population of -OH is increased on surface of mixed acid processed MWCNTs; and at condition of 30 °C, pH 6,as the increase in concentration and contact time, there is an increase in adsorption capacity of two adsorbents(processed and unprocessed),and the Cu2+ adsorption rate increased with the increase in adsorbent dosage. In addition, the considered adsorption capacity change was obtained when processed MWCNTs was used.