Multi Wall Carbon Nanotube Surface Modification and Adsorption Performance of Cu²⁺

Abstract:

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.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 1227-1230
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.1227
• Online since: February 2013
• Authors: Reyila Abuduwayiti, Cheng Tun Qu, Tao Yu, Bo Yang
• Keywords: Adsorbent, Adsorption, Cu²⁺, Multi-Walled Carbon Nanotube (MWCNT), Surface Modification

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