نتایج جستجو برای: 4ʹ bipyridine silica hybrid nanocomposite

تعداد نتایج: 242350  

2016
Junpeng Liu Zaid A. Janjua Martin Roe Fang Xu Barbara Turnbull Kwing-So Choi Xianghui Hou

A super-hydrophobic surface has been obtained from nanocomposite materials based on silica nanoparticles and self-assembled monolayers of 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) using spin coating and chemical vapor deposition methods. Scanning electron microscope images reveal the porous structure of the silica nanoparticles, which can trap small-scale air pockets. An average water co...

Journal: :Journal of the American Chemical Society 2007
Hanan Sertchook Hila Elimelech Carina Makarov Rafail Khalfin Yachin Cohen Michael Shuster Florence Babonneau David Avnir

Polyethylene (PE) and silica are perhaps the simplest and most common organic and inorganic polymers, respectively. We describe, for the first time, a physically interpenetrating nanocomposite between these two elementary polymers. While polymer-silica composites are well known, the nanometric physical blending of PE and silica has remained a challenge. A method for the preparation of such mate...

2014
Ranjan Kumar Barman Yasunori Iwao Shuji Noguchi Mir Imam Ibne Wahed Shigeru Itai Ravi K. Sajja R. K. Barman

In this study, a new formulation of silica nanocomposite containing nifedipine (NI) loaded freezedried solid-lipid nanoparticles (NI-SLNs) and silica have been developed with improved flowability of powders, which can lead to the formulation of a widely acceptable oral dosage form. The stable NI-SLNs were prepared using two phospholipids, hydrogenated soybean phosphatidylcholine and dipalmitoyl...

M. Masteri-Farahani, R. Kamrani

A new hybrid nanomaterial was developed by immobilization of phosphomolybdate anions on the surface of modified magnetite nanoparticles with quaternary phosphonium cations. Silica coated magnetic nanoparticles supported phosphonium cations, Ph3P+-SCMNPs, were prepared by covalent attachment of chloropropylsilyl groups on the surface of silica coated magnetite nanoparticles...

2015
Khalil Ahmed

In this assessment, hybrid composites were prepared from the combination of industrial waste, as marble waste powder (MWP) with conventional fillers, carbon black (CB) as well as silica as reinforcing material, incorporated with natural rubber (NR). The properties studied were curing, mechanical and swelling behavior. Assimilation of CB as well as silica into MWP containing NR compound responde...

Journal: :Colloids and Surfaces A: Physicochemical and Engineering Aspects 2021

Organic photosensitizers can facilitate photochemical singlet-oxygen ( 1 O 2 ) production, providing a promising strategy for photocatalysis, photodynamic therapy, and environmental protection. Unfortunately, most organic tend to self-aggregate because of their hydrophobicity conjugated ?–? electronic structure, leading the inactivation photosensitizing capabilities. Thus, controlled aggregatio...

2014
Tânia Ribeiro Carlos Baleizão José Paulo S. Farinha

High performance functional coatings, based on hybrid organic/inorganic materials, are being developed to combine the polymer flexibility and ease of processing with the mechanical properties and versatility of inorganic materials. By incorporating silica nanoparticles (SiNPs) in the polymeric matrices, it is possible to obtain hybrid polymer films with increased tensile strength and impact res...

Journal: :Solar RRL 2023

Hybrid Nanocomposite Materials In article number 2201069, Mikhael Bechelany and co-workers discuss that hybrid nanocomposite materials as photocatalysts could find applications in a wide range of fields, such renewable energy (water splitting, CO2 reduction, solar fuel production) environmental remediation treatment improving air quality).

2014
Peter Hesemann Thy Phung Nguyen Samir El Hankari

The synthesis of nanostructured anionic-surfactant-templated mesoporous silica (AMS) recently appeared as a new strategy for the formation of nanostructured silica based materials. This method is based on the use of anionic surfactants together with a co-structure-directing agent (CSDA), mostly a silylated ammonium precursor. The presence of this CSDA is necessary in order to create ionic inter...

2015
Sofia Masi Silvia Colella Andrea Listorti Vittoria Roiati Andrea Liscio Vincenzo Palermo Aurora Rizzo Giuseppe Gigli

Here we conceive an innovative nanocomposite to endow hybrid perovskites with the easy processability of polymers, providing a tool to control film quality and material crystallinity. We verify that the employed semiconducting polymer, poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV), controls the self-assembly of CH₃NH₃PbI₃ (MAPbI₃) crystalline domains and favors the deposit...

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