Titanium-Based Mesoporous Materials for Photocatalysis

2018 ◽  
pp. 47-73
Author(s):  
Jinlong Zhang ◽  
Baozhu Tian ◽  
Lingzhi Wang ◽  
Mingyang Xing ◽  
Juying Lei
Keyword(s):  
Mesoporous Materials

Size Control of Block Polymer Templated Mesoporous Silicate Materials

2000 ◽  
Vol 628 ◽  
Author(s):  
Takeo Yamada ◽  
Keisuke Asai ◽  
Kenkichi Ishigure ◽  
Akira Endo ◽  
Hao S. Zhou ◽  
...  
Keyword(s):  
Mesoporous Materials ◽  
Molecular Sieve ◽  
Mesoporous Material ◽  
Triblock Copolymer ◽  
Size Control ◽  
Block Polymer ◽  
New Class ◽  
Mesoporous Silicate ◽  
Cubic Structure ◽  
Silicate Materials

ABSTRACTMesoporous materials have attracted considerable interest because of applications in molecular sieve, catalyst, and adsorbent. It will be useful for new functional device if functional molecules can be incorporated into the pore of mesoporous material. However, it is necessary to synthesize new mesoporous materials with controlled large pore size. Recently, new class of mesoporous materials has been prepared using triblock copolymer as a template. In this paper, we reported that hexagonal and cubic structure silicate mesoporous materials can be synthesized through triblock copolymer templating, and their size was controlled by synthesis condition at condensation.

Synthesis of Smart Mesoporous Materials

2003 ◽  
Vol 775 ◽  
Author(s):  
G.V.Rama Rao ◽  
Qiang Fu ◽  
Linnea K. Ista ◽  
Huifang Xu ◽  
S. Balamurugan ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Mesoporous Materials ◽  
Fluorescent Dyes ◽  
Thermo Gravimetric Analysis ◽  
Molecular Transport ◽  
Solute Diffusion ◽  
Gravimetric Analysis ◽  
Stimuli Responsive ◽  
Porous Network ◽  
Hybrid Mesoporous Materials

AbstractThis study details development of hybrid mesoporous materials in which molecular transport through mesopores can be precisely controlled and reversibly modulated. Mesoporous silica materials formed by surfactant templating were modified by surface initiated atom transfer radical polymerization of poly(N-isopropyl acrylamide) (PNIPAAm) a stimuli responsive polymer (SRP) within the porous network. Thermo gravimetric analysis and FTIR spectroscopy were used to confirm the presence of PNIPAAm on the silica surface. Nitrogen porosimetry, transmission electron microscopy and X-ray diffraction analyses confirmed that polymerization occurred uniformly within the porous network. Uptake and release of fluorescent dyes from the particles was monitored by spectrofluorimetry and scanning laser confocal microscopy. Results suggest that the presence of PNIPAAm, a SRP, in the porous network can be used to modulate the transport of aqueous solutes. At low temperature, (e.g., room temperature) the PNIPAAm is hydrated and extended and inhibits transport of analytes; at higher temperatures (e.g., 50°C) it is hydrophobic and is collapsed within the pore network, thus allowing solute diffusion into or out of the mesoporous silica. The transition form hydrophilic to hydrophobic state on polymer grafted mesoporous membranes was determined by contact angle measurements. This work has implications for the development of materials for the selective control of transport of molecular solutes in a variety of applications.

Tuning the Surface of Mesoporous Materials Towards Hydrophobicity-Effects in Olefin Epoxidation

2011 ◽  
Vol 1 (2) ◽  
pp. 156-165 ◽  
Author(s):  
Ana Carina Ventura ◽  
Cristina I. Fernandes ◽  
Marta S. Saraiva ◽  
Teresa G. Nunes ◽  
Pedro D. Vaz ◽  
...  
Keyword(s):  
Mesoporous Materials ◽  
Olefin Epoxidation

scholarly journals Impact of Geometrical Disorder on Phase Equilibria of Fluids and Solids Confined in Mesoporous Materials

Langmuir ◽  
2021 ◽  
Author(s):  
Henry R. N. B. Enninful ◽  
Daniel Schneider ◽  
Dirk Enke ◽  
Rustem Valiullin
Keyword(s):  
Phase Equilibria ◽  
Mesoporous Materials

Selective oxidation of cyclopentene to glutaraldehyde by H2O2 over Nb-SBA-15

2021 ◽  
Author(s):  
yingmeng qi ◽  
Qi Han ◽  
li wu ◽  
Jun Li
Keyword(s):  
Structural Properties ◽  
Selective Oxidation ◽  
Mesoporous Materials ◽  
Hydrothermal Process ◽  
X Ray Diffraction ◽  
X Ray

A series of niobium-containing mesoporous materials Nb-SBA-15 have been prepared by sonication–impregnation and hydrothermal process. The dispersion and structural properties of niobium-containing species were systematically characterized by X-ray diffraction, scanning...

Recent progress of mesoporous materials for high performance supercapacitors

2021 ◽  
Vol 314 ◽  
pp. 110870
Author(s):  
Yanyan Fang ◽  
Qianyu Zhang ◽  
Lifeng Cui
Keyword(s):  
Mesoporous Materials ◽  
High Performance ◽  
Recent Progress

scholarly journals A shelf-life study of silica- and carbon-based mesoporous materials

2021 ◽  
Author(s):  
Emma M. Björk ◽  
Aylin Atakan ◽  
Pei-Hsuan Wu ◽  
Alessandra Bari ◽  
Carlotta Pontremoli ◽  
...  
Keyword(s):  
Shelf Life ◽  
Mesoporous Materials ◽  
Life Study ◽  
Carbon Based
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