The inhibitory effects of carboxymethyl inulin on the seeded growth of calcium carbonate

[Display omitted] ► We investigate the kinetics of precipitation of calcite (CaCO 3) from aqueous solution in the presence of carboxymethyl inulin (CMI) by constant composition method. ► Carboxymethyl inulin at low concentration inhibits the crystal growth of calcium carbonate (CaCO 3). ► The higher...

Full description

Saved in:
Bibliographic Details
Published in:Colloids and surfaces, B, Biointerfaces B, Biointerfaces, 2012-03, Vol.91, p.18-25
Main Authors: Kırboga, Semra, Oner, Mualla
Format: Article
Language:English
Subjects:
aqueous solutions
Biopolymer
biopolymers
Calcite
Calcium carbonate
Calcium Carbonate - chemistry
colloids
Constant composition
Crystal growth
Crystallization
crystals
Density
Hydrogen-Ion Concentration
Inhibition
Inulin
Inulin - chemistry
ionic strength
Low concentrations
Microscopy, Electron, Scanning
Powder Diffraction
Reproducibility of Results
Spectroscopy, Fourier Transform Infrared
Temperature
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:[Display omitted] ► We investigate the kinetics of precipitation of calcite (CaCO 3) from aqueous solution in the presence of carboxymethyl inulin (CMI) by constant composition method. ► Carboxymethyl inulin at low concentration inhibits the crystal growth of calcium carbonate (CaCO 3). ► The higher inhibition efficiency is related to the maximum surface charge density due to adsorbed polymer. ► The effect of CMI is related to the carboxyl groups and the concentration of the polymer. Kinetics of precipitation of calcite (CaCO 3) from aqueous solution in the presence of carboxymethyl inulin (CMI) was investigated under strictly controlled temperature, pH, supersaturation ratio ( S = 4.8) and ionic strength ( I = 0.1 M). The highly reproducible constant composition technique was used to study the influence of biopolymers of crystal growth of CaCO 3, on CaCO 3 seed crystals at pH 8.5 and 25 °C. The crystal growth of calcium carbonate (CaCO 3) was inhibited in the presence of CMI at low concentration (2.5 × 10 −9 to 25 × 10 −9 mol/L). The larger number of negatively charged functional groups exhibited a 95% growth rate inhibition at a concentration of 15 × 10 −9 mol/L. The higher inhibition efficiency is related to the maximum surface charge density due to adsorbed polymer.
ISSN:0927-7765
1873-4367
DOI:10.1016/j.colsurfb.2011.10.031