scholarly journals Surface Modification of nTiO2/Ag Hybrid Nanoparticles Using Microwave-Assisted Polymerization in the Presence of Bis(2-hydroxyethyl) Terephthalate

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
P. A. De León-Martínez ◽  
F. Soriano-Corral ◽  
C. A. Ávila-Orta ◽  
P. González-Morones ◽  
E. Hernández-Hernández ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Surface Modification ◽  
Electron Diffraction ◽  
Thin Layer ◽  
Ag Nanoparticles ◽  
Hybrid Nanoparticles ◽  
Excellent Performance ◽  
Microwave Assisted ◽  
A Value ◽  
Surface Modified

Titanium dioxide doped silver (nTiO2/Ag) nanoparticles were surface-modified by microwave-assisted polymerization of 2-bis-(hydroxyethyl) terephthalate (BHET). The modified and unmodified nanoparticles were analyzed by FTIR, XRD, TGA, and TEM. A thin layer of grafted PET on the surface of the nanoparticles was observed and quantified by TGA giving a value of 40 wt-%. XRD and electron diffraction analyses showed traces of AgO2 after the modification. The bactericide activity of modified and unmodified nanoparticles was evaluated; the presence of the thin layer of grafted-PET on the nTiO2/Ag did not change significantly the bactericide activity, showing an excellent performance similar to unmodified nanoparticles.

SURFACE MODIFICATION OF NANO TITANIUM DIOXIDE (TiO2) BY CATIONIC SURFACTANTS AND INVESTIGATION OF ITS EFFECT ON THE PROPERTIES OF NATURAL RUBBER (NR) NANOCOMPOSITES

2019 ◽  
Vol 93 (2) ◽  
pp. 346-359
Author(s):  
Kumarjyoti Roy ◽  
Debdas Sikdar ◽  
Swapan Kumar Mandal ◽  
Subhas Chandra Debnath
Keyword(s):  
Titanium Dioxide ◽  
Surface Modification ◽  
Natural Rubber ◽  
Cationic Surfactants ◽  
Mechanical And Thermal Properties ◽  
Tetraethylammonium Bromide ◽  
Nano Tio2 ◽  
Uniform Dispersion ◽  
Surface Modified ◽  
Nano Titanium Dioxide

ABSTRACT We investigate the reinforcing effects of both unmodified and surface modified nano titanium dioxide (TiO2) on the cure, mechanical, and thermal properties of natural rubber (NR) nanocomposites. The surface of nano TiO2 is modified by cationic surfactants cetyltrimethylammonium bromide (CTAB) and tetraethylammonium bromide (TEAB). The surface modification of nano TiO2 is characterized by Fourier transform infrared (FTIR) spectra and Field emission scanning electron microscopy (FESEM). The result reveals that surface modified nano TiO2 is much more efficient in improving the resulting properties of NR nanocomposites in comparison with unmodified nano TiO2. The excellent improvement in the properties of surface modified nano TiO2/NR composites is due to the better hydrophobicity and uniform dispersion of modified nano TiO2 within the NR matrix, as confirmed from morphological analysis. CTAB is much more effective than TEAB with respect to the properties of nano TiO2 based NR composites.

scholarly journals Fabrication and interfacial characteristics of surface modified Ag nanoparticle based conductive composites

RSC Advances ◽  
2017 ◽  
Vol 7 (47) ◽  
pp. 29702-29712 ◽  
Author(s):  
Yingsi Wu ◽  
Lun-De Liao ◽  
Han-Chi Pan ◽  
Leng He ◽  
Chin-Teng Lin ◽  
...  
Keyword(s):  
Surface Modification ◽  
Ag Nanoparticles ◽  
Ag Nanoparticle ◽  
Conductive Composites ◽  
Surface Modified ◽  
Interfacial Characteristics

Surface modification of Ag nanoparticles with PAA–PVP complex was conducted and successfully improved the dispersion of Ag nanoparticles in PDMS.

The effects of ultrasonic/microwave assisted treatment on the properties of soy protein isolate/titanium dioxide films

LWT ◽  
2014 ◽  
Vol 57 (2) ◽  
pp. 548-555 ◽  
Author(s):  
Zhe Wang ◽  
Ning Zhang ◽  
Huai-yu Wang ◽  
Si-yao Sui ◽  
Xiu-xiu Sun ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Soy Protein ◽  
Soy Protein Isolate ◽  
Protein Isolate ◽  
Titanium Dioxide Films ◽  
Microwave Assisted

scholarly journals Preparation of high-performance toluene adsorbents by sugarcane bagasse carbonization combined with surface modification

RSC Advances ◽  
2020 ◽  
Vol 10 (40) ◽  
pp. 23749-23758
Author(s):  
Yu Wang ◽  
Wangsheng Chen ◽  
Bo Zhao ◽  
Huaqin Wang ◽  
Linbo Qin ◽  
...  
Keyword(s):  
Surface Modification ◽  
Sugarcane Bagasse ◽  
High Performance ◽  
Activated Carbons ◽  
Excellent Performance

A series of activated carbons were prepared by carbonizing sugarcane bagasse combined with surface modification, which showed an excellent performance of adsorbing toluene (522 mg g−1 at 30 °C).

Investigation of the Fate of Silver and Titanium Dioxide Nanoparticles in Model Wastewater Effluents via Selected Area Electron Diffraction

2020 ◽  
Vol 54 (14) ◽  
pp. 8681-8689
Author(s):  
Benedikt Steinhoff ◽  
Julian Müller ◽  
Darya Mozhayeva ◽  
Bastian T. F. Spelz ◽  
Carsten Engelhard ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Electron Diffraction ◽  
Titanium Dioxide Nanoparticles ◽  
Selected Area Electron Diffraction ◽  
Wastewater Effluents

scholarly journals Facile Preparation of Efficient WO3Photocatalysts Based on Surface Modification

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Min Liu ◽  
Hongmei Li ◽  
Yangsu Zeng
Keyword(s):  
Photocatalytic Activity ◽  
Surface Modification ◽  
Visible Light ◽  
Photoelectron Spectroscopy ◽  
Impregnation Method ◽  
Light Spectra ◽  
Simple Strategy ◽  
Visible Light Active ◽  
Efficient Charge ◽  
Surface Modified

Tungsten trioxide (WO3) was surface modified with Cu(II) nanoclusters and titanium dioxide (TiO2) nanopowders by using a simple impregnation method followed by a physical combining method. The obtained nanocomposites were studied by scanning electron microscope, X-ray photoelectron spectroscopy spectra, UV-visible light spectra, and photoluminescence, respectively. Although the photocatalytic activity of WO3was negligible under visible light irradiation, the visible light photocatalytic activity of WO3was drastically enhanced by surface modification of Cu(II) nanoclusters and TiO2nanopowders. The enhanced photocatalytic activity is due to the efficient charge separation by TiO2and Cu(II) nanoclusters functioning as cocatalysts on the surface. Thus, this simple strategy provides a facile route to prepare efficient visible-light-active photocatalysts for practical application.

scholarly journals Cationic dyes immobilized on cellulose acetate surface modified with titanium dioxide: factorial design and an application as sensor for NADH

2007 ◽  
Vol 18 (8) ◽  
pp. 1462-1472 ◽  
Author(s):  
Andrea A. Hoffmann ◽  
Silvio L. P. Dias ◽  
Edilson V. Benvenutti ◽  
Eder C. Lima ◽  
Flávio A. Pavan ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Factorial Design ◽  
Cellulose Acetate ◽  
Cationic Dyes ◽  
Surface Modified
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