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Title :アパタイト/ゼオライト複合多孔体及び複合薄膜による放射性物質除去に関する研究
Title alternative :Removal of radioactive substance by porous bodies and thin films of hydroxyapatite and zeolite composite
Authors :尾関, 和秀
Authors alternative :OZEKI, KAZUHIDE
Issue Date :14-Jun-2018
Abstract :研究成果の概要(和文):放射性物質除去を目的として、ストロンチウム(Sr)吸着能に優れるハイドロキシアパタイト(HA)及びセシウム(Cs)吸着に優れるゼオライトの複合化を目指し、HA/ゼオライトの多孔体及び薄膜の作製を試み、その吸着能評価を行った。多孔体作製にゲル化凍結法を用い、各条件における気孔率、Cs, Srの吸着評価を行った。その結果、Cs及びSr(1mmol/L)中の吸着量については、最大でそれぞれ15%と8%を示した。複合薄膜の作製においては、ゼオライトの一種であるナトロライトとHA膜とをパターン状に形成し、Cs及びSr (0.1mmol/L)中の吸着量を測定し、Csで60%、Srで20%の吸着が認められた。 研究成果の概要(英文):The hydroxyapatite (HA) and zeolite composite porous bodies and films were prepared to apply for various conditions of decontamination of radio substances such as strontium (Sr) and cesium (Cs). The porous body of HA/zeolite was prepared from HA and zeolite powders using a gelling freezing method. The porosity of the porous body increased with the charged amount of gel. The maximum adsorptions of Cs and Sr were 15% and 8%, respectively. However, there was not the relationship between the adsorption ratio and the charged amount gel. In the preparation of zeolite films, Natrolite (zeolite) film was synthesized after the hydrothermal treatment, and the HA and zeolite composite films were prepared using mask patterns. The adsorption ratio of Cs and Sr on the HA/zeolite composite films showed around 60% and 20%, respectively.
Type Local :科研等報告書
Publisher :茨城大学
URI :http://hdl.handle.net/10109/13991
Appears in Collections:Grants-in-aid for scientific research Report (College of Engineering)

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