Published 2018 | Version v1
Journal article Metadata-only

Improvement in impregnation percentage of sodium titanate of adsorptive fiber for strontium through repetitive immobilization of peroxotitanium complex anions to anion-exchange fiber

Creators

  • 1. Chiba University, Department of Applied Chemistry and Biotechnology, Chiba (Japan)
  • 2. KJK Co., Ltd., Takasaki, Gunma (Japan)

Description

To prepare adsorptive fiber capable of capturing strontium ions dissolved in seawater at high capacity, peroxotitanium complex (POTC) anions as precursor of sodium titanate were immobilized by repetitive immersion of dimethylaminoethyl methacrylate (DMAEMA)-grafted fiber in a POTC anion-containing solution. Through ten-times immobilization of POTC anions and their conversion into sodium titanate, impregnation percentage of the fiber amounted to 29%, which was approximately 1.6-fold higher than once immobilization and impregnation. A binding capacity of the resultant fiber in artificial seawater for strontium ions was raised up to 2.9 mg-Sr per gram of the fiber. (author)

Availability note (English)

Available from DOI: https://doi.org/10.3769/radioisotopes.67.213

Abstract (Japanese)

ストロンチウム(Sr)吸着材を構成するチタン酸ナトリウム(ST)の前駆体であるペルオキソチタン錯体(POTC)アニオンをジメチルアミノエチルメタクリレート重合繊維へ繰り返して吸着固定し,これをNaOHと反応させSTに転化・析出することによって,Srイオンを海水中で,高容量で捕集するSr吸着繊維を作製した。10回の繰り返し吸着固定後にNaOHとの反応によって得られる吸着繊維のST担持率は1回の担持によるST担持率18%の1.6倍(29%)に増加した。10回の担持で,人工海水中でのSr飽和吸着容量も1.5倍(2.9 mg-Sr/g)に増えた。(著者)

Additional details

Additional titles

Original title (Japanese)
ペルオキソチタン錯体アニオンのアニオン交換繊維への繰返し吸着によるストロンチウム吸着繊維のチタン酸ナトリウム担持率の向上

Identifiers

DOI
10.3769/radioisotopes.67.213;

Publishing Information

Journal Title
Radioisotopes (Online)
Journal Volume
67
Journal Issue
5
Journal Page Range
p. 213-219
ISSN
1884-4111

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
52103018
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ADSORBENTS; FERROCYANIDES; FUKUSHIMA DAIICHI NUCLEAR POWER STATION; GRAFT POLYMERS; HYDROLYSIS; IMPREGNATION; ION EXCHANGE; IRRADIATION; MELTDOWN; NUCLEAR POWER PLANTS; PH VALUE; RADIOACTIVE WASTE PROCESSING; RADIOACTIVITY; REACTOR DECOMMISSIONING; STRONTIUM; TITANIUM COMPLEXES
Descriptors DEC
ACCIDENTS; ALKALINE EARTH METALS; BEYOND-DESIGN-BASIS ACCIDENTS; CHEMICAL REACTIONS; COMPLEXES; DECOMMISSIONING; DECOMPOSITION; ELEMENTS; IRON COMPLEXES; LYSIS; MANAGEMENT; METALS; NUCLEAR FACILITIES; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; POWER PLANTS; PROCESSING; RADIOACTIVE WASTE MANAGEMENT; REACTOR ACCIDENTS; REACTOR LIFE CYCLE; REACTOR SITES; SEVERE ACCIDENTS; SOLVOLYSIS; THERMAL POWER PLANTS; TRANSITION ELEMENT COMPLEXES; WASTE MANAGEMENT; WASTE PROCESSING

Optional Information

Notes
12 refs., 5 figs.