Preparation of highly controlled nanostructured Au within mesopores using reductive deposition in non-polar environments

RSC Advances ◽  
2014 ◽  
Vol 4 (52) ◽  
pp. 27201-27206 ◽  
Author(s):  
Masaki Kitahara ◽  
Kazuyuki Kuroda
Keyword(s):  
Surface Modification ◽  
Mesoporous Silica ◽  
Functional Groups ◽  
Organic Functional Groups ◽  
Unique Method ◽  
Conventional Methods

We demonstrate a sophisticated and unique method of Au deposition exclusively inside mesoporous silica, in clear contrast to conventional methods requiring surface modification with organic functional groups interacting with Au.

Engineering surface functional groups on mesoporous silica: towards a humidity-resistant hydrophobic adsorbent

2018 ◽  
Vol 6 (28) ◽  
pp. 13769-13777 ◽  
Author(s):  
Shuai Liu ◽  
Yue Peng ◽  
Jianjun Chen ◽  
Wenbo Shi ◽  
Tao Yan ◽  
...  
Keyword(s):  
Surface Modification ◽  
Thermal Treatment ◽  
Mesoporous Silica ◽  
Functional Groups ◽  
Surface Functional Groups ◽  
Adsorption Selectivity

Manipulating surface modification through a selective thermal treatment, an adsorbent with high hydrophobicity and adsorption selectivity for toluene was fabricated.

A method for the preparation of transparent mesoporous silica sol–gel monoliths containing grafted organic functional groups

2005 ◽  
Vol 15 (24) ◽  
pp. 2356 ◽  
Author(s):  
Cheri W. Clavier ◽  
D. Lynn Rodman ◽  
Joseph F. Sinski ◽  
Leonardo R. Allain ◽  
Hee-Jung Im ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Functional Groups ◽  
Sol Gel ◽  
Silica Sol ◽  
Organic Functional Groups

MILLING EFFECT AND ENHANCED LUMINESCENCE PROPERTY OF BAM NANOPHOSPHOR VIA SURFACE MODIFICATIONS

NANO ◽  
2009 ◽  
Vol 04 (06) ◽  
pp. 367-370 ◽  
Author(s):  
A. DULDA ◽  
D. S. JO ◽  
M. TAKAKI ◽  
D. H. YOON
Keyword(s):  
Surface Modification ◽  
Functional Groups ◽  
Luminescence Intensity ◽  
Surface Defects ◽  
Solution Treatment ◽  
Efficiency Improvement ◽  
Luminescence Efficiency ◽  
Treated Sample ◽  
Dispersion Agent ◽  
Organic Functional Groups

Surface modification of luminescent nanomaterials has attracted considerable technological interest. With decreasing particle size, the passivation of surface defects is of vital importance. This paper reports the effect of an alkali (KOH) solution treatment and organic functional groups on the luminescence efficiency and particle dispersibility. Fourier transform infrared spectroscopy provided clear evidence of surface modification with organic functional groups from the C=O , C–H , and C–O stretching modes at 1740, 1365, and 1218 cm-1. The KOH-treated sample showed a 40% increase in luminescence intensity, whereas 87% increase in luminescence intensity was obtained from the dispersion-agent-containing sample. To the best of our knowledge, this is the highest efficiency improvement for sub-micrometer-sized BAM: Eu2+ phosphors reported thus far.

scholarly journals Spatial distribution of organic functional groups supported on mesoporous silica nanoparticles: a study by conventional and DNP-enhanced 29Si solid-state NMR

2017 ◽  
Vol 19 (3) ◽  
pp. 1781-1789 ◽  
Author(s):  
Takeshi Kobayashi ◽  
Dilini Singappuli-Arachchige ◽  
Zhuoran Wang ◽  
Igor I. Slowing ◽  
Marek Pruski
Keyword(s):  
Spatial Distribution ◽  
Solid State ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Functional Groups ◽  
Solid State Nmr ◽  
Mesoporous Silica Nanoparticles ◽  
Spatial Distributions ◽  
Organic Functional Groups

DNP-enhanced solid-state NMR determined spatial distributions of organic functionalities attached to surfaces of mesoporous silica nanoparticles via co-condensation and grafting.

The impact of framework organic functional groups on the hydrophobicity and overall stability of mesoporous silica materials

2012 ◽  
Vol 132 (2-3) ◽  
pp. 1077-1088 ◽  
Author(s):  
Geert Smeulders ◽  
Vera Meynen ◽  
Ana Silvestre-Albero ◽  
Kristof Houthoofd ◽  
Myrjam Mertens ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Functional Groups ◽  
Organic Functional Groups ◽  
Silica Materials ◽  
Overall Stability ◽  
Mesoporous Silica Materials ◽  
The Impact

scholarly journals Investigating Unusual Organic Functional Groups to Engineer the Surface Chemistry of Mesoporous Silica to Tune CO2–Surface Interactions

2017 ◽  
Vol 9 (16) ◽  
pp. 14490-14496 ◽  
Author(s):  
Emily Bloch ◽  
Eric Besson ◽  
Séverine Queyroy ◽  
Richard Llewellyn ◽  
Stéphane Gastaldi ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Surface Chemistry ◽  
Functional Groups ◽  
Surface Interactions ◽  
Organic Functional Groups

Surface Modification of Nano-TiO2 by Titanate Coupling Agent

2012 ◽  
Vol 538-541 ◽  
pp. 350-353 ◽  
Author(s):  
Shou Wu Yu ◽  
Shu Juan Xiao ◽  
Xiao Ming Sang ◽  
Gui Xiang Hou
Keyword(s):  
Surface Modification ◽  
Tio2 Nanoparticles ◽  
Functional Groups ◽  
Coupling Agent ◽  
Ftir Spectrum ◽  
Sem Micrographs ◽  
Organic Functional Groups ◽  
20 Nm ◽  
Commercial Tio2

The surface of commercial TiO2 nanoparticles was modified by titanate coupling agent, JSC(isopropyl tricarboxytate titanate), FTIR spectrum confirmed that organic functional groups were successfully grafted onto the surface of TiO2 nanoparticles. The SEM micrographs indicated that the aggregation of modified TiO2 was reduced and most of the particles were approximately 20 nm.

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