Synthesis of organoclays: A critical review and some unresolved issues

H He, L Ma, J Zhu, RL Frost, BKG Theng, F Bergaya - Applied Clay Science, 2014 - Elsevier
The synthesis of organoclays (OC) by intercalation of quaternary ammonium cation (QAC)
into expanding clay minerals, notably montmorillonite (Mt), has attracted a great deal of …

Bioreactive organoclay: a new technology for environmental remediation

B Sarkar, Y **, M Megharaj… - Critical reviews in …, 2012 - Taylor & Francis
Organoclays, which are synthesized by introducing organic molecules into the clay structure,
have been proven effective for remediation of many contaminants in soil and water. The …

Organoclays prepared from montmorillonites with different cation exchange capacity and surfactant configuration

H He, Y Ma, J Zhu, P Yuan, Y Qing - Applied clay science, 2010 - Elsevier
Organically modified montmorillonites ('organo-montmorillonites') have attracted a great
deal of interest because of their wide applications in industry and environmental protection …

Adsorption of U (VI) from sulfate solution using montmorillonite/polyamide and nano-titanium oxide/polyamide nanocomposites

MF Cheira, MN Kouraim, IH Zidan… - Journal of …, 2020 - Elsevier
The polyamide-based nanocomposites were formed via inorganic nanosized
(montmorillonite clay MMT, or TiO 2) particles that incorporated inside a polyamide 6 (PA6) …

Thermal analysis of montmorillonites modified with quaternary phosphonium and ammonium surfactants

CB Hedley, G Yuan, BKG Theng - Applied Clay Science, 2007 - Elsevier
The thermal stability of seven organically modified montmorillonites ('organoclays') has been
investigated using differential thermal analysis, differential scanning calorimetry, and …

Thermal characterization by DSC and TGA analyses of PVA hydrogels with organic and sodium MMT

F Reguieg, L Ricci, N Bouyacoub, M Belbachir… - Polymer Bulletin, 2020 - Springer
Polyvinyl alcohol (PVA) hydrogels were prepared by a cyclic freezing–thawing technique
without any cross-linker agent, using PVA and Maghnite water dispersion with different …

Remediation of hexavalent chromium through adsorption by bentonite based Arquad® 2HT-75 organoclays

B Sarkar, Y **, M Megharaj, GSR Krishnamurti… - Journal of hazardous …, 2010 - Elsevier
Unlike hydrophobic organic pollutants, the potential of organoclays to adsorb inorganic ionic
contaminants is relatively underexplored. The present study attempts to characterise …

Modification of montmorillonite with cationic surfactants. Thermal and chemical analysis including CEC determination

A Vazquez, M López, G Kortaberria, L Martín… - Applied Clay …, 2008 - Elsevier
The thermal stability of synthesized and commercial organically modified montmorillonites
has been investigated using thermogravimetric analysis (TGA). Four organo …

Properties of diclofenac sodium sorption onto natural zeolite modified with cetylpyridinium chloride

D Krajišnik, A Daković, M Milojević, A Malenović… - Colloids and Surfaces B …, 2011 - Elsevier
In this study an investigation of a model drug sorption onto cationic surfactant-modified
natural zeolites as a drug formulation excipient was performed. Natural zeolite was modified …

Effect of nanosilica and montmorillonite nanoclay particles on cement hydration and microstructure

S Papatzani - Materials Science and Technology, 2016 - journals.sagepub.com
The need to produce sustainable cements has driven research towards nanotechnology.
The main cement hydration product, calcium silicate hydrate, is nanosized; hence, the …