Grafting Amide onto Activated Carbon Fiber’s Surface and Its Application in the Disposal of Heavy Metal Ion Cu<sup>2+</sup>

GOU Yu-qiang; HU Fang-di

GOU Yu-qiang, HU Fang-di. Grafting Amide onto Activated Carbon Fiber’s Surface and Its Application in the Disposal of Heavy Metal Ion Cu2+[J]. Analysis and Testing Technology and Instruments, 2012, 18(2): 80-84.

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Grafting Amide onto Activated Carbon Fiber’s Surface and Its Application in the Disposal of Heavy Metal Ion Cu²⁺

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The modification of ACF was carried out by converting the surface carboxyl of PAN-ACF to acyl-chlorine reaction with SOCl, followed by heating reflux at 110℃ with ethylene diamine grafted the amide onto the ACF surface. The surface structure, element combination state and content variation of ACF before and after grafting were characterized by FTIR and XPS. And the concentration variation of Cu²⁺ was detected by ICP-AES when NH-ACF was applied to remove the Cu²⁺ in water as well as the maximal adsorption capacity q_max was obtained. The results showed that the modified ACF had higher adsorption and removal capacity, comparing to the unmodified. Its q_max value was about 1.5 times of unmodified one’s.

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Grafting Amide onto Activated Carbon Fiber’s Surface and Its Application in the Disposal of Heavy Metal Ion Cu2+

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Grafting Amide onto Activated Carbon Fiber’s Surface and Its Application in the Disposal of Heavy Metal Ion Cu²⁺