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

Kirboga S., Öner M.

COLLOIDS AND SURFACES B-BIOINTERFACES, cilt.91, ss.18-25, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 91
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.colsurfb.2011.10.031
  • Dergi Adı: COLLOIDS AND SURFACES B-BIOINTERFACES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.18-25
  • Anahtar Kelimeler: Crystal growth, Calcium carbonate, Constant composition, Biopolymer, Crystallization, ATOMIC-FORCE MICROSCOPY, CRYSTAL-GROWTH, BIOMIMETIC MINERALIZATION, HETEROGENEOUS NUCLEATION, PHASE-TRANSFORMATION, CONSTANT-COMPOSITION, OXALATE MONOHYDRATE, POLYMERIC ADDITIVES, SODIUM ALGINATE, SCALE FORMATION
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Kinetics of precipitation of calcite (CaCO3) 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 CaCO3. on CaCO3 seed crystals at pH 8.5 and 25 degrees C. The crystal growth of calcium carbonate (CaCO3) was inhibited in the presence of CMI at low concentration (2.5 x 10(-9) to 25 x 10(-9) mol/L). The larger number of negatively charged functional groups exhibited a 95% growth rate inhibition at a concentration of 15 x 10(-9) mol/L.The higher inhibition efficiency is related to the maximum surface charge density due to adsorbed polymer. (C) 2011 Elsevier BA/. All rights reserved.