Ordered SBA-15 functionalized with a high loading of pendant carboxylate groups has been synthesized via co-condensation of tetraethoxysilane (TEOS) and carboxyethylsilanetriol sodium salt (CES) templated by Pluronic P123 under acidic conditions.
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http://dx.doi.org/10.1039/b909680a | DOI Listing |
Food Chem
January 2025
Laboratory of Nutrition and Functional Food, College of Food Science and Engineering, Jilin University, Changchun 130062, PR China. Electronic address:
Herein, nonhydrated phospholipids (NHPs) were removed from soybean oil using three silica adsorbents modified using aminopolycarboxylic acid ligands. The removal rate of NHPs was 62.98 %.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Physical Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Square 3, 20-031 Lublin, Poland.
In this article, we report on the research on the synthesis of composites based on a porous, highly ordered silica material modified by a metallic nanophase and chitosan biofilm. Due to the ordered pore system of the SBA-15 silica, this material proved to be a good carrier for both the biologically active nanophase (highly dispersed silver nanoparticles, AgNPs) and the adsorption active phase (chitosan). The antimicrobial susceptibility was determined against Gram-positive ATCC 25923, Gram-negative bacterial strains ( ATCC 25922, ATCC 700603, and ATCC 27853), and yeast ATCC 90028.
View Article and Find Full Text PDFHeliyon
December 2024
The Petroleum and Petrochemical College, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand.
Glycerol, a by-product of biodiesel production through transesterification, presents an opportunity for biodiesel industries to transform surplus glycerol into high-value chemical products. This study focuses on the development of a series of propyl sulfonic acid functionalized (PrSOH) SBA-15 catalysts, synthesized by direct synthesis of 3-mercaptopropyltrimethoxysilane (MPTMS) and tetraethoxysilane (TEOS) in an acidic medium. The catalysts were evaluated for acetylation of glycerol with acetic acid under conditions optimized through response surface methodology.
View Article and Find Full Text PDFAnal Chim Acta
January 2025
Environmental and Bio-Analytical Laboratories, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran. Electronic address:
Background: Periodic mesoporous organosilicas (PMOs) are a new class of organic-inorganic hybrid materials with high surface area, narrow pore size distribution, high functional group loading, and tunable functional groups. In contrast to other porous organosilicate materials, PMOs show a uniform distribution of organic groups inside their framework walls. They are synthesized by condensing bis-silylated organic precursors around a surfactant template.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
It is a dream of researchers to be able to tailor the catalytic performances by adjusting heterogeneous catalysts at the atomic level. Atomically precise metal clusters provide us with the possibility to achieve this challenge. Here, we design a push-and-pull synthesis strategy coupled with TiO coating to prepare the heterogeneous catalysts denoted as TiO/AuM@SBA via cultivating atomically precise AuM(PPh) (M=Pd, Pt or Au; n=2 for Pd/Pt and 3 for Au) clusters in mesoporous molecular sieve.
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