Published August 15, 2019 | Version v1
Journal article Metadata-only

Sorption of radioactive cobalt onto nano calcium silicate/CuO composite modified by humic acid

Creators

  • 1. Atomic Energy Authority, Hot Laboratories and Waste Management Center (Egypt)
  • 2. National Research Centre, Refractories, Ceramics and Building Materials Department (Egypt)
  • 3. National Research Centre, Glass Research Department (Egypt)

Description

The sorption process of Co(II) onto nanoparticles of calcium silicate doped with 5% CuO treated by humic acid was evaluated using batch technique. This process follows the second order kinetic model. Equilibrium isotherm models of Co(II) sorption onto the modified composite was 208.91 mg/g. Negative value of free energy change (ΔG0), confirms the spontaneous sorption of Co(II) ions onto the modified composite. The removal efficiency (R%) reached 96.9% using 0.5 g of the modified composite. Therefore, the composite could be used for treatment of radioactive waste containing 60Co.

Additional details

Identifiers

DOI
10.1007/s10967-019-06599-2;

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
321
Journal Issue
2
Journal Page Range
p. 391-401
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
54121598
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Descriptors DEI
CALCIUM SILICATES; COBALT 60; COPPER OXIDES; DOPED MATERIALS; EFFICIENCY; FREE ENERGY; HUMIC ACIDS; IONS; ISOTHERMS; KINETICS; NANOPARTICLES; RADIOACTIVE WASTES; REMOVAL; SORPTION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALCIUM COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; COBALT ISOTOPES; COPPER COMPOUNDS; ENERGY; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATERIALS; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PARTICLES; PHYSICAL PROPERTIES; RADIOACTIVE MATERIALS; RADIOISOTOPES; SILICATES; SILICON COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; WASTES; YEARS LIVING RADIOISOTOPES

Optional Information

Copyright
Copyright (c) 2019 Akad#Latin Small Letter E With Acute#miai Kiad#Latin Small Letter O With Acute#, Budapest, Hungary