Layered Rare-Earth Hydroxide Unilameller Nanosheets: Synthesis, Characterization, and Adsorption

Unilameller nanosheets with a lateral dimension of one nanometer have been isolated from a colloidal solution of europium-containing layered rare-earth hydroxide (LRH) material by the flocculation method. The nanosheets were achieved by changing pH of the colloidal solution from 6.7 to 11.5. The res...

Full description

Saved in:
Bibliographic Details
Published in:Journal of chemistry 2020-01, Vol.2020 (2020), p.1-11
Main Authors: Lagat, Silas, Otieno, Zablon, Stephen Odongo, Adongo, Omwoma, Solomon, Lalah, Joseph Owuor
Format: Article
Language:English
Subjects:
Adsorption
Aggregates
Aqueous solutions
Chemisorption
Efficiency
Europium
Flocculation
Fluorides
Hydroxides
Morphology
Nanocomposites
Nanomaterials
Nanosheets
Organic chemistry
Rare earth elements
Sorbents
Synthesis
Water purification
Water treatment
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Unilameller nanosheets with a lateral dimension of one nanometer have been isolated from a colloidal solution of europium-containing layered rare-earth hydroxide (LRH) material by the flocculation method. The nanosheets were achieved by changing pH of the colloidal solution from 6.7 to 11.5. The resultant flocculated nanosheets show high efficiency in sorption of fluoride anions from aqueous media (40 mmol/g), providing a potentially useful sorbent material for water purification technology. The sorbent material is demonstrated to be reusable for at least ten times without a significant loss of adsorption efficiency. And the results fit the Langmuir adsorption curve, indicating the chemisorption nature of the nanosheets. Most importantly, the isolated nanosheets are expected to widen the applicability and flexibility in material synthesis using two-dimensional nanomaterials.
ISSN:2090-9063
2090-9071
DOI:10.1155/2020/8923871