Metal ion absorption of carboxymethylcellulose gel formed by gamma-ray irradiation. For the environmental purification.
Carboxymethylcellulose (CMC) is well known as a safe and biodegradable material, which is widely used as food additives, wash paste, etc., in our daily life. Aiming at the environmental purification of this eco-friendly substance, the authors have investigated Cu2+ absorption property of CMC gel that was crosslinked by irradiating with gamma-rays without toxic crosslinker. The CMC gel has revealed to capture Cu2+ of which number depends on the gamma-ray dose as well as the CMC concentration, indicating the chelation by carboxyl group at the end of the side chain.
Hara
K
K
Institute of Environmental Systems, Faculty of Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. haratap@mbox.nc.kyushu-u.ac.jp
Iida
M
M
Yano
K
K
Nishida
T
T
D002266:Carboxymethylcellulose Sodium / Q000737:chemistry*; D004785:Environmental Pollutants / Q000302:isolation & purification*; D005720:Gamma Rays; D019216:Metals, Heavy / Q000737:chemistry*
D004785:Environmental Pollutants; D019216:Metals, Heavy; D002266:Carboxymethylcellulose Sodium