To obtain kaolinite at low temperature and pressure from the system Si(OH)(4)-Al(3+)-H(2)O, the sixfold coordination of aluminum is a necessary prerequisite. Kaolinite was synthesized at pH values from 2 to 9 and with a ratio of SiO(2) to Al(2)O(3) in solution from 1 to 10 by means of the complexation of Al(3+) and fulvic acid.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1126/science.171.3974.896 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Optimization of adsorption performance by mesoporous materials developed from local clays and zeolite. Application in the treatment of real pharmaceutical effluents.
J Environ Sci Health B
December 2024
Laboratoire Génie Civil et d'Hydraulique, Université 8 Mai 1945, Guelma, Algeria.
The treatment of effluents from the pharmaceutical industry currently remains a major challenge due to their impact on the environment and public health along with the cost of treatments. Considering these issues, our work focused on the development of materials with effective adsorption properties to treat industrial effluents based on locally available and inexpensive clays and zeolite. Local Algerian kaolin (Djebel Debbagh), palygorskite (Ghoufi) and zeolite (Tinbdar) were treated thermally and chemically prior to synthesis into mesoporous materials of hexagonal structure using pluronic P123 as surfactant.
View Article and Find Full Text PDFAntimicrobial Mixture Based on Micronized Kaolinite and Ziziphora Essential Oil as a Promising Formulation for the Management of Infected Wounds.
Int J Mol Sci
December 2024
Department of Pharmaceutical Microbiology, Medical University of Lublin, 20-093 Lublin, Poland.
Kaolinite stands out as a promising natural geomaterial for developing new therapeutic systems aimed at addressing global health challenges, such as multidrug-resistant infections. In this study, we report on the formulation and biological activity of a therapeutic mixture composed of white micronized kaolinite (KAO) and Ziziphora essential oil (ZEO), intended for topical application on infected wounds. GC-MS analysis revealed that the primary component of ZEO is pulegone, constituting 72.
View Article and Find Full Text PDFSynthesis and Characterization of Acrylic Resin/Kaolin Composites for Dielectric Applications.
Polymers (Basel)
November 2024
Faculty of Mechanics, University Politehnica of Timisoara, 2 Piata Victoriei, 300006 Timisoara, Romania.
This study investigates the synthesis and characterization of acrylic resin/kaolin composites for dielectric applications. Acrylic resin, while widely used for its mechanical strength and ease of processing, exhibits limited dielectric properties, which restrict its use in high-performance electrical insulation. To address this, varying concentrations (0-70%) of raw kaolin, containing 71% kaolinite, were incorporated into an acrylic resin matrix to enhance its dielectric strength and thermal stability.
View Article and Find Full Text PDFFacile Synthesis of Natural Kaolin-Based CuO Catalyst: An Efficient Heterogeneous Catalyst for the Catalytic Reduction of 4-Nitrophenol.
ACS Omega
December 2024
Chemistry Department, College of Science, Bahir Dar University, PO Box 79 Bahir Dar, Ethiopia.
Water contamination by nitro compounds from various industrial processes has significantly contributed to environmental pollution and severely threatened aquatic ecosystems. Inexpensive, efficient, and environmentally benign catalysts are required for the catalytic reduction of such nitro compounds. This study reports the fabrication of various nanocomposites (NCs) of copper oxide nanoparticles (CuO NPs) supported on a kaolin sheet using straightforward and simple one-pot synthesis procedures that control the metal precursor to kaolin ratios.
View Article and Find Full Text PDFTarget-oriented element activation and functional group synthesis lead to high quality modified clay for Prorocentrum donghaiense control.
Harmful Algae
January 2025
CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, Qingdao, 266237, PR China. Electronic address:
Single source with series modifications (SSSM) is a new method to modify clay surfaces by activating clay mineral resources for harmful algal blooms control. In this study, the optimal preparation conditions for this method were obtained using response surface methodology. Based on the material analysis, an important way to obtain modified clay (MC) with the excellent Prorocentrum donghaiense removal performance was explored and the optimum preparation conditions were as follows: calcination temperature 750 °C, alkali neutralization pH 3.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!