Published 2020 | Version v1
Journal article Metadata-only

Characteristic of prussian blue analogue used in caesium adsorption and study of caesium removal from aqueous solution

Creators

  • 1. Niigata University, Graduate School of Science and Technology, Niigata (Japan)
  • 2. Niigata University, Faculty of Engineering, Department of Chemistry and Chemical Engineering, Niigata (Japan)

Description

Prussian blue (PB) and copper ferrocyanide (CF) were synthesized and characterized by XRD, SEM, XPS and N2-BET. The basic adsorption behavior of caesium (Cs) onto these adsorbents were investigated. The adsorption isotherms was fitted by both Langmuir and Freundlich isotherm equations (particularly fitted to Langmuir equation for CF). The maximum adsorption capacity based on Langmuir equation was determined to be 296 mg/g for PB and 409 mg/g for CF. Moreover, to evaluate the efficiency of SiO2 carried CF (CF-SiO2) as novel adsorbent for Cs, the effect of interfering cations on the adsorption capacity of Cs+ was investigated in the presence of several competitive cations (i.e., Na+, K+, Mg2+) as well as PB and CF. In the present study, this adsorbent was tentatively applied to the removal of radioactive caesium (137Cs). The adsorbent synthesized in this work can be an efficient adsorbent for Cs+. (author)

Availability note (English)

Available from DOI: https://doi.org/10.3769/radioisotopes.69.217

Abstract (Japanese)

プルシアンブルー(PB)とフェロシアン化銅(CF)を合成し,XRD, SEM, XPS, N2-BET を用いて特性評価を行った。これらの粉末による Cs 吸着性能の基礎的特性を探究したところ,Langmuir とFreundlich 双方の吸着等温式に適合し,Langmuir 吸着等温式による最大吸着量は PB が296 mg/g, CFが409 mg/g であった。さらに新規吸着剤として CF を担持した SiO2(CF-SiO2)の Cs 吸着における有用性を検証するため,PB, CF 粉末試料と同様に阻害カチオン(Na+, K+, Mg2+)による Cs+吸着への影響も検証した。本研究で作成した吸着剤は,放射性セシウム(137Cs)除去に対して有用であると示唆された。(著者)

Additional details

Additional titles

Original title (Japanese)
セシウム吸着に用いるプルシアンブルー類似体の特性評価と水溶液中からのセシウム除去法の検討

Identifiers

DOI
10.3769/radioisotopes.69.217;

Publishing Information

Journal Title
Radioisotopes (Online)
Journal Volume
69
Journal Issue
7
Journal Page Range
p. 217-231
ISSN
1884-4111

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
52110146
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ADSORBENTS; ADSORPTION; ADSORPTION ISOTHERMS; CESIUM 137; CESIUM IONS; DESORPTION; FERROCYANIDES; FISSION PRODUCT RELEASE; FUKUSHIMA DAIICHI NUCLEAR POWER STATION; ICP MASS SPECTROSCOPY; MELTDOWN; NUCLEAR POWER PLANTS; POTASSIUM COMPOUNDS; RADIOACTIVE WASTE PROCESSING; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY
Descriptors DEC
ACCIDENTS; ALKALI METAL COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BEYOND-DESIGN-BASIS ACCIDENTS; CESIUM ISOTOPES; CHARGED PARTICLES; COHERENT SCATTERING; COMPLEXES; DIFFRACTION; ELECTRON SPECTROSCOPY; INTERMEDIATE MASS NUCLEI; IONS; IRON COMPLEXES; ISOTHERMS; ISOTOPES; MANAGEMENT; MASS SPECTROSCOPY; NUCLEAR FACILITIES; NUCLEI; ODD-EVEN NUCLEI; PHOTOELECTRON SPECTROSCOPY; POWER PLANTS; PROCESSING; RADIOACTIVE WASTE MANAGEMENT; RADIOISOTOPES; REACTOR ACCIDENTS; REACTOR SITES; SCATTERING; SEVERE ACCIDENTS; SORPTION; SPECTROSCOPY; THERMAL POWER PLANTS; TRANSITION ELEMENT COMPLEXES; WASTE MANAGEMENT; WASTE PROCESSING; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
18 refs., 13 figs., 3 tabs.