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Haopeng Zeng, Yu Zhang, Lei Zhang, Zhaoyang Chen and Xiaosen Li
Most resources of natural gas hydrate (NGH) exist in marine sediments where salts and sea mud are involved. It is of great importance to investigate the effects of salts and sea mud on NGH formation kinetics. In this study, the mixture of silica sand and...
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Minghao Mu, Chaochao Liu and Zhengnan Liu
To improve the rutting resistance and anti-aging performance of bio-asphalt, the composite modifier of rock asphalt and montmorillonite is used to modify the bio-asphalt. The optimum content of each component was determined by orthogonal tests based on t...
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Yi Shan, Xing Wang, Jie Cui, Haihong Mo and Yadong Li
Marine clays are easily affected by different mineral composition in cyclic load-based geological hazards. Therefore, based on analyzing the mineral composition of natural marine clay, it is the key to predict the dynamic properties of natural materials ...
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Volodymyr Krasinskyi, Ludmila Dulebova, Rafal Malinowski, Krzysztof Bajer and Oksana Krasinska
The modification method of aluminosilicate clays and the modifier content have a decisive influence on the structure and properties of the obtained nanocomposites. Therefore, the development and research of new techniques of nanoclays modification are of...
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Carlos Mota-Heredia, Jaime Cuevas and Raúl Fernández
Carbon steel and bentonite are materials selected as engineered barriers for high-level radioactive waste confinement. Their long-term interaction must be evaluated to confirm the barrier?s stability. Three laboratory experiments of the carbon steel?Mg-b...
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Jiajun Chen, Jianzun Lu, Lingcheng Su, Huada Ruan, Yijia Zhao, Chiuhong Lee, Zongwei Cai, Zhihui Wu and Yanan Jiang
This article studies the enhancement of methyl orange (MO) adsorption by Mongolian montmorillonite (MMt) modified by the intercalation of the Keggin Al13 complex, followed by calcination during the pillaring process. The properties of MMt, Al-intercalate...
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Pedro César Quero-Jiménez,Lester Alejandro Arias Felipe,Julio Omar Prieto García,María Elisa Jorge Rodríguez,Jorge Basilio de la Torre López,Osvaldo Norman Montenegro,Reinaldo Molina Ruíz,Inés Silvia Tiscornia
Pág. 546 - 556
The physic and chemical characterization of the bentonite clay from the Chiqui Gómez deposit, central Cuba, (Cuban bentonite clay) shows that it is mainly constituted by sodium montmorillonite (>90%), with a structural formula for one-layer unit deter...
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Tomasz M. Majka, Monika Witek, Paulina Radzik, Karolina Komisarz, Agnieszka Mitoraj and Krzysztof Pielichowski
Nowadays, increasing attention is devoted to the search for polymeric composite materials that are characterized by reduced flammability. In this work, the layer-by-layer (LbL) technique was applied to form multilayered protective coatings for polyamide ...
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Gaohong Zuo, Yingchao Du, Lianqi Wei, Bo Yu, Shufeng Ye, Xiaomeng Zhang and Hongshun Hao
Emulsified pickling waste liquid, derived from cleaning oily hardware, cause serious environmental and ecological issues. In this work, a series of grafted (3-aminopropyl)triethoxysilane (APTES) TiO2 pillared montmorillonite (Mt), Ti-Mt-APTES, are prepar...
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Maryna Zhaldak,Olena Mokrousova
Pág. 6 - 15
Chemical transformations of modified collagen for prediction of effective formation and stabilization of the derma structure with the use of montmorillonite dispersions treated by different modifying agents were studied. Identification of chemical intera...
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Zsuzsanna Szabó, Csaba Hegyfalvi, Ágnes Freiler-Nagy, Beatrix Udvardi, Péter Kónya, Csilla Király, Edit Székely, György Falus
Pág. 318 - 327
One of the challenges of the present century is to limit the greenhouse gas emissions for the mitigation of climate change which is possible for example by a transitional technology, CO2 geological storage. Clay minerals are considered to be responsible ...
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Beatriz González, Bárbara Muñoz, Miguel Angel Vicente, Raquel Trujillano, Vicente Rives, Antonio Gil and Sophia Korili
Montmorillonite?TiO2 nanocomposites were prepared using two different methods (ultrasonic or stirring) and using titanium(IV) isopropoxide as precursor. The solids were characterized by element chemical analysis, X-ray diffraction, FTIR spectroscopy, the...
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Hangli Zhang, Shujuan Wang, Ji Shu and Hongyu Wang
Doxycycline (DOX), a typical antibiotic, is harmful to aquatic ecosystems and human health. This study presents DOX removal by potassium ferrate (Fe(VI)) and montmorillonite and investigates the effect of Fe(VI) dosage, reaction time, initial pH value, m...
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Zhonghao He, Jiajun Chen, Jianzun Lu, Sabrina Yanan Jiang, Lingcheng Su, Chiu Hong Lee and Huada Daniel Ruan
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Victor Gomes Lauriano Souza, João Ricardo Afonso Pires, Carolina Rodrigues, Patricia Freitas Rodrigues, Andréia Lopes, Rui Jorge Silva, Jorge Caldeira, Maria Paula Duarte, Francisco Braz Fernandes, Isabel Maria Coelhoso and Ana Luisa Fernando
Novel bionanocomposite films of chitosan/montmorillonite (CS/MMT) activated with ginger essential oil (GEO) were produced and characterized in terms of their physical and morphological properties. The homogenization process led to a good interaction betw...
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Nedjla Amri, Djamila Ghemati, Nadia Bouguettaya, Djamel Aliouche
Pág. 179 - 189
This study involved preparation of hybrid polymer systems based on chitosan-poly(vinyl alcohol) (PVA) blends and modified Montmorillonite. These structures were characterized through microscopy and infrared spectroscopy; swelling measurements were perfor...
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Beatriz González, Bárbara Muñoz, Miguel Angel Vicente, Raquel Trujillano, Vicente Rives, Antonio Gil and Sophia Korili
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Vladimir Sánchez, María Dolores González, Pilar Salagre and Yolanda Cesteros
5-hydroxymethylfurfural (5-HMF) is an important platform molecule for the synthesis of high-added value products. Several synthesized clay materials, such as mesoporous hectorite and fluorohectorite, in addition to commercial montmorillonite K-10, have b...
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Rita D. Bonetto,Patricia E. Zalba,Maria S. Conconi,Marcelo Manassero
Pág. 103 - 115
The Rietveld method was successfully used for the quantitative phase analysis of zeolitized rocks containing montmorillonite, a phase in which the atomic positions cannot be determined exactly. The freely distributed program FULLPROF was used in its prof...
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Victor G. L. Souza, João R. A. Pires, Érica T. Vieira, Isabel M. Coelhoso, Maria P. Duarte and Ana L. Fernando
Active packaging incorporated with natural extracts is a promising technology to extend shelf life of perishable food. Therefore, this study aimed to produce a bionanocomposite based on chitosan reinforced with sodium montmorillonite (MMT) and incorporat...
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