Design of purification functional materials for pollutants including radioactive cesium by using disposable fiber

2014 Fiscal Year Final Research Report

• Project/Area Number: 24300245
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: General human life sciences
• Research Institution: Fukushima University
• Principal Investigator: KANAZAWA Hitoshi 福島大学, 共生システム理工学類, 教授 (50143128)
• Co-Investigator(Renkei-kenkyūsha): TAKASE Tsugiko 福島大学, 環境放射能研究所, 特任准教授 (10466641) ; ONAMI Tetsuo 福島大学, 共生システム理工学類, 客員教授 (70137008) ; KURAMOTO Noriyuki 山形大学, 理工学研究科, 教授 (20153372)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 繊維 / 吸着 / アンモニア / 放射性セシウム / 空気清浄機

Outline of Final Research Achievements

This study was carried out to prepare functional materials by the chemical modification of various fibers, which leads to the effective use of waste fibers. Anionic monomer grafted cellulose fibers adsorbed metallic ions and cationic surfactants in water. Nonionic organic compounds in water were trapped by rayon fiber. Subsequently, an aqueous cesium chloride solution was examined to consider the property of radioactive cesium compounds. Grafted fiber adsorbed cesium ions more effective than zeolite. But, the fiber did not adsorb cesium ion in the presence of other metallic ions. Radioactive cesium compounds adsorbed in the soil could not be dissolved easily in water. Thus, the removal of cesium dissolved in water is not practical. It was found that the dusts in our buildings contained about 15,000 Bq/kg of radioactive cesium. Thus, the removal of the dusts was examined by using air cleaners. The chemical modification of nonwoven fabric filters for air cleaners was investigated.

Free Research Field

高分子科学　繊維科学　結晶化学　染色科学