Chitosan 및 Chitosan유도체를 이용한 중금속 이온 흡착에 관한 연구

• 영문명: A Study on Adsorption of Heavy Metal Ions Using Chitosan and Chitosan Derivative
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 이광일(Lee Kwang Ill) 곽천근(Kwak Chun Geun) 장병만 김영주(Kim Young Ju) 박태홍(Park Tae Hong) 노승일(Roh Seung Ill) 이기창(Lee Ki Chang)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제13권 제3호, 25~34쪽, 전체 10쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 1996.11.30

영문 초록

We have synthesized the wafer-insoluble cbitosan derivative, N-dithiocarboxy chitosan sodium salt, through the reaction of chitosan with carbon disulfide in the presence of alkali metal hydroxide, Chitosan itself has been prepared using chitin, one of the most abundant compounds in nature, as a starting material. To elucidate this natural polymer the capacity of adsorbing heavy metal ions, we have performed adsorption experiments using chitosan derivatives of various average molecular weights with different contents of sulfur. The effect of pH, adsorption time and temperature on adsorption efficiency was also studied. The adsorbent derived from chitosan of average molecular weight ranging 5,700~20,000 was shown to have the highest capacity of adsorbing heavy metal ions. Adsorbing effciency was increased as the reaction time was increased and as the reaction temperature range of 25~45℃. The adsorption capacity at various pH, however, appeared to vary depending on the heavy metal ions studied.

목차

ABSTRACT

I. 서론

II. 실험

III. 결과 및 고찰

IV. 결론

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