Published December 2018 | Version v1
Journal article Metadata-only

Poly (β-cyclodextrin)/bentonite composite. Synthesis mechanism and adsorption property for cesium in water

Creators

  • 1. University of South China, Hengyang (China). Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy
  • 2. University of South China, Hengyang (China). Institute of Nuclear Science and Technology
  • 3. University of South China, Hengyang (China). Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology

Description

A poly(β-Cyclodextrin)/bentonite composite (β-CD/BNC) were characterized by N2-BET measurement, scanning electron microscopy, energy dispersive spectrometer, fourier transform infrared spectroscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy. Its synthesis mechanism of graft polymerisation was expounded. The maximum sorption capacities of Cs+ onto β-CD/BNC in absence and presence of Cl- and CO32- were 48.83 mg g-1, 48.90 mg g-21, and 46.19 mg g-1, respectively. The effect of Cl- and CO32- on Cs+ adsorption was not obvious. β-CD/BNC displayed good stability and reusability. The main adsorption mechanism of cesium by β-CD/BNC was ion exchange, and the surface coordination was subordinated mechanism. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
318
Journal Issue
3
Journal Page Range
p. 2117-2127
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
50016378
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ADSORPTION; BENTONITE; CARBONATES; CESIUM; CHLORIDES; COMPOSITE MATERIALS; ION EXCHANGE; SCANNING ELECTRON MICROSCOPY; SORPTIVE PROPERTIES; SYNTHESIS; THERMAL GRAVIMETRIC ANALYSIS; X-RAY PHOTOELECTRON SPECTROSCOPY
Descriptors DEC
ALKALI METALS; CARBON COMPOUNDS; CHEMICAL ANALYSIS; CHLORINE COMPOUNDS; CLAYS; ELECTRON MICROSCOPY; ELECTRON SPECTROSCOPY; ELEMENTS; GRAVIMETRIC ANALYSIS; HALIDES; HALOGEN COMPOUNDS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MATERIALS; METALS; MICROSCOPY; MINERALS; OXYGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; QUANTITATIVE CHEMICAL ANALYSIS; SILICATE MINERALS; SORPTION; SPECTROSCOPY; SURFACE PROPERTIES; THERMAL ANALYSIS

Optional Information

Notes
38 refs.