FTIR techniques in clay mineral studies

J Madejová - Vibrational spectroscopy, 2003 - Elsevier
Transmission and reflection FTIR techniques were used to distinguish between different
types of clay minerals and to derive information concerning their structure, composition and …

Clay swelling—a challenge in the oilfield

RL Anderson, I Ratcliffe, HC Greenwell… - Earth-Science …, 2010 - Elsevier
Water-based drilling fluids are increasingly being used for oil and gas exploration, and are
generally considered to be more environmentally acceptable than oil-based or synthetic …

Adsorption of methylene blue onto chitosan–montmorillonite/polyaniline nanocomposite

IM Minisy, NA Salahuddin, MM Ayad - Applied Clay Science, 2021 - Elsevier
Eco-friendly adsorbent of chitosan–montmorillonite/polyaniline (CH–Mt/PANI)
nanocomposite was synthesized by the intercalation of CH into Mt through ion-exchange …

Adsorption behaviors and mechanisms of Fe/Mg layered double hydroxide loaded on bentonite on Cd (II) and Pb (II) removal

X Guan, X Yuan, Y Zhao, J Bai, Y Li, Y Cao… - Journal of Colloid and …, 2022 - Elsevier
In this study, FeMg-LDH loaded with bentonite (FeMg-LDH@ bentonite) was prepared using
the facile co-precipitating method in situ to remove heavy metals from water and then …

Fabrication of poly (maleic acid)-grafted cross-linked chitosan/montmorillonite nanospheres for ultra-high adsorption of anionic acid yellow-17 and cationic brilliant …

RM Eltabey, FT Abdelwahed, MM Eldefrawy… - Journal of Hazardous …, 2022 - Elsevier
In this contribution, poly (maleic acid)-grafted cross-linked chitosan/montmorillonite
composite nanospheres (PMAL-CTS/MMT) were synthesized via a facile approach for …

An investigation of Cu (II) adsorption by raw and acid-activated bentonite: A combined potentiometric, thermodynamic, XRD, IR, DTA study

E Eren, B Afsin - Journal of Hazardous materials, 2008 - Elsevier
Adsorption of Cu (II) by raw bentonite (RB) and acid-activated bentonite (AAB) samples was
investigated as a function of the initial Cu (II) concentration, solution pH, ionic strenght …

Fabrication of protonated chitosan/montmorillonite catalyst for hydrogen production via sodium borohydride in the optimum methanol/propylene glycol mixture

C Saka - International Journal of Hydrogen Energy, 2024 - Elsevier
Abstract Hydrogen (H 2), an energy carrier, is among the advanced energy technologies. In
the study, a hybrid metal-free catalyst was provided by protonation of chitosan dispersed on …

Infrared study of HDTMA+ intercalated montmorillonite

H Hong**, FL Ray, Z Jianxi - Spectrochimica Acta Part A: Molecular and …, 2004 - Elsevier
In this paper, FTIR spectroscopy using attenuated total reflection (ATR) and KBr pressed
disk techniques has been used to characterize sorbed water and HDTMA+ in organo-clay …

Removal of lead ions by acid activated and manganese oxide-coated bentonite

E Eren, B Afsin, Y Onal - Journal of Hazardous Materials, 2009 - Elsevier
This paper presents the adsorption of Pb (II) from aqua solutions onto Unye (Turkey)
bentonite in raw (RB), acid activated (AAB) and manganese oxide-coated (MCB) forms …

[HTML][HTML] In-situ FTIR analyses of bentonite under high-pressure

FG Alabarse, RV Conceição, NM Balzaretti… - Applied Clay …, 2011 - Elsevier
The stability of bentonite is of particular interest for containment barriers in nuclear waste
disposal facilities. However, very little is known about the stability of montmorillonite (the …