Smart organic/inorganic sol-gel nanocomposite containing functionalized mesoporous silica for corrosion protection

2019 ◽  
Vol 133 ◽  
pp. 44-54 ◽  
Author(s):  
S.M. Ashrafi-Shahri ◽  
F. Ravari ◽  
D. Seifzadeh

2013 ◽  
Vol 06 (03) ◽  
pp. 1350031
Author(s):  
HABIBEH HADAD DABAGHI ◽  
MAHMOOD KAZEMZAD ◽  
YADOLAH GANJKHANLOU ◽  
AMIR ALI YUZBASHI

Electrochemistry has been introduced as a powerful tool in order to prepare new organometallic reagents for functionalizing of mesoporous silica. Preparation of the reagents was based on electrochemical oxidation of dihydroxybenzene derivatives in the presence of 3-(trimethoxysilyl)-1-propanethiol as a nucleophile. The mechanisms of electrochemical reactions were studied by voltammetric studies. Mesoporous silica SBA-15 was also synthesized in this work through sol-gel hydrothermal method using Genapol PF-10 as structure directing compound. The prepared mesoporous silica was characterized by FT-IR analysis and Barrett–Joiner–Halenda (BJH) pore size and Brunauer–Emmett–Teller (BET) surface area measurement methods using N2 adsorption–desorption isotherm. Finally, the organometallic reagent was covalently grafted on the surface of mesoporous silica. Functionalizing of this material with the new reagent was confirmed by Fourier transform infrared (FT-IR) spectroscopy. The functionalized mesoporous silica by new reagent can be utilized in biological applications.





2019 ◽  
Vol 7 (45) ◽  
pp. 7235-7245 ◽  
Author(s):  
Suman Chirra ◽  
Suresh Siliveri ◽  
Ravi Gangalla ◽  
Srinath Goskula ◽  
Sripal Reddy Gujjula ◽  
...  

In the present study, we have reported the synthesis of a transition metal (Me = Ti, V, and Pd) incorporated into MCM-41 mesoporous molecular sieves (Si/Me = 20) synthesized by the sol–gel method. Antimicrobial and cytotoxicity studies were screened for the same.



2012 ◽  
Vol 27 (2) ◽  
pp. 134-138
Author(s):  
Feng GUO ◽  
Gui-Ru ZHU ◽  
Cong-Jie GAO


2020 ◽  
Vol 24 ◽  
Author(s):  
Ghodsi Mohammadi Ziarani ◽  
Shima Roshankar ◽  
Fatemeh Mohajer ◽  
Alireza Badiei

Abstract:: Mesoporous silica nanomaterials provide an extraordinary advantage for making new and superior heterogeneous catalysts because of their surface silanol groups. The functionalized mesoporous SBA-15, such as acidic, basic, BrÖnsted, lewis acid, and chiral catalysts, are used for a wide range of organic synthesis. The importance of the chiral ligands, which were immobilized on the SBA-15, was mentioned in this review to achieve chiral products as valuable target molecules. Herein, their synthesis and application in different organic transformations are reviewed from 2016 till date 2020.









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