Preparation of POSS-based organic–inorganic hybrid mesoporous materials networks through Schiff base chemistry

2011 ◽  
Vol 47 (5) ◽  
pp. 853-860 ◽  
Author(s):  
Yuancheng Qin ◽  
Hongbo Ren ◽  
Fanghua Zhu ◽  
Lin Zhang ◽  
Chengwei Shang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Mesoporous Materials ◽  
Inorganic Hybrid ◽  
Hybrid Mesoporous Materials

scholarly journals Organic-Inorganic Hybrid Mesoporous Materials Assembled from Sodium Silicate and Organotrialkoxysilane

2004 ◽  
Vol 20 (01) ◽  
pp. 81-84
Author(s):  
Yu Ning-Ya ◽  
◽  
Gong Yan-Jun ◽  
Wu Dong ◽  
Sun Yu-Han ◽  
...  
Keyword(s):  
Sodium Silicate ◽  
Mesoporous Materials ◽  
Inorganic Hybrid ◽  
Hybrid Mesoporous Materials

scholarly journals Synthesis and Optical Properties of Organic-Inorganic Hybrid Mesoporous Materials with Naphthalene Bridging Groups

2013 ◽  
Vol 29 (03) ◽  
pp. 639-645 ◽  
Author(s):  
CUI Xiao-Yan ◽  
◽  
HAN Shu-Hua ◽  
SUN Yuan-Yuan ◽  
WANG Sha-Sha ◽  
...  
Keyword(s):  
Optical Properties ◽  
Mesoporous Materials ◽  
Inorganic Hybrid ◽  
Bridging Groups ◽  
Hybrid Mesoporous Materials

Organic-Inorganic Hybrid Mesoporous Materials as Regenerable Sensing Systems for the Recognition of Nitroaromatic Explosives

ChemPlusChem ◽  
2013 ◽  
Vol 78 (7) ◽  
pp. 684-694 ◽  
Author(s):  
Krishanu Sarkar ◽  
Yolanda Salinas ◽  
Inmaculada Campos ◽  
Ramón Martínez-Máñez ◽  
María D. Marcos ◽  
...  
Keyword(s):  
Mesoporous Materials ◽  
Inorganic Hybrid ◽  
Nitroaromatic Explosives ◽  
Sensing Systems ◽  
Hybrid Mesoporous Materials

Salicylidene Schiff Base Assembled with Mesoporous Silica SBA-15 for Cu (II) Removal in Aqueous Media

2011 ◽  
Vol 356-360 ◽  
pp. 373-381
Author(s):  
Jin Huang ◽  
Meng Ye ◽  
Rui Chen ◽  
Qi Zhuang He
Keyword(s):  
Schiff Base ◽  
Mesoporous Silica ◽  
Mesoporous Materials ◽  
Metal Ion ◽  
Removal Rate ◽  
Aqueous Media ◽  
Mesoporous Structure ◽  
Bet Surface Area ◽  
Ir Transmission ◽  
Hybrid Mesoporous Materials

Novel Schiff base-functionalized SBA-15 mesoporous silica is prepared, characterized and used as an adsorbent for heavy metal ion, Cu (II). The organic-inorganic hybrid mesoporous materials have been synthesized by two post-graftings of tetraethoxysilane (TEOS) with 3-aminopropyltrimethoxy-silane (APTES) and salicylaldehyde in sequence. The functionalized mesoporous materials are characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM) and nitrogen (N2) adsorption-desorption analysis. The result indicates that, after sequent chemical modifications of aminopropyl and schiff base, the primary hexagonally ordered mesoporous structure of SBA-15 is not affected. The mesoporous silica, which has a BET surface area of 573.263 m2g-1, a high pore diameter (centered at 5.24 nm) and pore volume of 0.847 cm3 g-1, exhibits the excellent adsorption capacity. The removal rate of Cu2+in aqueous media is high and the adsorbent can be regenerated by EDTA and acid treatments without changing its properties.

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.

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