Aziridine-Functionalized Mesoporous Silica Membranes on Polymeric Hollow Fibers: Synthesis and Single-Component CO2 and N2 Permeation Properties

2014 ◽  
Vol 54 (16) ◽  
pp. 4407-4413 ◽  
Author(s):  
Hyung-Ju Kim ◽  
Watcharop Chaikittisilp ◽  
Kwang-Suk Jang ◽  
Stephanie A. Didas ◽  
Justin R. Johnson ◽  
...  
RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16549-16553 ◽  
Author(s):  
Donghun Kim ◽  
Bradley F. Chmelka

Transparent functionalized mesoporous silica membranes have been prepared with high surface areas (∼500 m2 g−1) that exhibit high sensitivities for colorimetric detection and sensing of dilute heavy-metal ions (e.g., Pb2+).


2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Hyung-Ju Kim ◽  
Hee-Chul Yang ◽  
Dong-Yong Chung ◽  
In-Hwan Yang ◽  
Yun Jung Choi ◽  
...  

Mesoporous silica molecular sieves are emerging candidates for a number of potential applications involving adsorption and molecular transport due to their large surface areas, high pore volumes, and tunable pore sizes. Recently, several research groups have investigated the potential of functionalized mesoporous silica molecular sieves as advanced materials in separation devices, such as membranes. In particular, mesoporous silica with a two- or three-dimensional pore structure is one of the most promising types of molecular sieve materials for gas separation membranes. However, several important challenges must first be addressed regarding the successful fabrication of mesoporous silica membranes. First, a novel, high throughput process for the fabrication of continuous and defect-free mesoporous silica membranes is required. Second, functionalization of mesopores on membranes is desirable in order to impart selective properties. Finally, the separation characteristics and performance of functionalized mesoporous silica membranes must be further investigated. Herein, the synthesis, characterization, and applications of mesoporous silica membranes and functionalized mesoporous silica membranes are reviewed with a focus on CO2separation.


2014 ◽  
Vol 6 (20) ◽  
pp. 17877-17886 ◽  
Author(s):  
Hyung-Ju Kim ◽  
Nicholas A. Brunelli ◽  
Andrew J. Brown ◽  
Kwang-Suk Jang ◽  
Wun-gwi Kim ◽  
...  

2011 ◽  
Vol 34 (1-3) ◽  
pp. 266-271 ◽  
Author(s):  
Manabu Miyamoto ◽  
Ayato Takayama ◽  
Shigeyuki Uemiya ◽  
Katsunori Yogo

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.


2007 ◽  
Vol 101 (1-2) ◽  
pp. 303-311 ◽  
Author(s):  
Yuzuru Sakamoto ◽  
Kensuke Nagata ◽  
Katsunori Yogo ◽  
Koichi Yamada

2021 ◽  
Author(s):  
Israel T. Pulido-Díaz ◽  
Alejandro Serrano-Maldonado ◽  
Carlos César López-Suárez ◽  
Pedro A. Méndez-Ocampo ◽  
Benjamín Portales-Martínez ◽  
...  

RhNPs supported on mesoporous silica functionalized with nicotinamide groups provided active hydrogenation catalysts for several functional groups, wherein the shape and size of the RhNPs are maintained after catalysis.


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