화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터)
권호 46권 2호
발표분야 고분자합성
제목 Removal of Cu2+ and Cd2+ in Acidic Condition by Poly(amide dihydrazide) Microparticles
초록 Poly(amidoamine)s (PAMAM) are effective in removing heavy metal ions from water due to their abundant amine and amide functional groups which have a high binding ability to heavy metal ions. We synthesized poly(amide hydrazide) (PAMH) hydrogel particles that resemble PAMAM polymers in their structure. In Cd2+ and Cu2+ ion sorption tests, the synthesized dihydrazide-based PAMH hydrogel particles exhibited sorption capacity of 85 mg/g for Copper and 47 mg/g for Cadmium. Interestingly, the PAMH showed the improved sorption ability in acidic condition (only 10% less than neutral condition sorption) in contrast to the diamine-based hyperbranched PAMAM that showed ~90% decrease of sorption ability at pH of 4. Also, PAMH hydrogel particles remove trace amount (<1 ppm) of copper and cadmium ions in water.
저자 최호중, 김태형, 김상율
소속 한국과학기술원
키워드 heavy metal removal; Poly(amidehydrazide); inverse suspension polymerization
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