نتایج جستجو برای: mesoporous

تعداد نتایج: 10528  

Journal: :Environmental science & technology 2004
Eun Woo Shin James S Han Min Jang Soo-Hong Min Jae Kwang Park Roger M Rowell

Phosphorus from excess fertilizers and detergents ends up washing into lakes, creeks, and rivers. This overabundance of phosphorus causes excessive aquatic plant and algae growth and depletes the dissolved oxygen supply in the water. In this study, aluminum-impregnated mesoporous adsorbents were tested for their ability to remove phosphate from water. The surface structure of the materials was ...

2005
Y. Kemmochi M. Hu Y. Murakami M. Ogura S. Maruyama T. Okubo

Vertically oriented single-walled carbon nanotubes (SWNTs) attract considerable attention, because it is expected as an ideal field emitter that can realize lower threshold voltage and higher electric current than microtips of Si or metals. In this study, we aim that SWNTs are vertically oriented using mesoporous silica film as a guide of the growth for SWNTs. For the orientation, the catalyst ...

Journal: :Proteomics 2010
Ali Bouamrani Ye Hu Ennio Tasciotti Li Li Ciro Chiappini Xuewu Liu Mauro Ferrari

The advanced properties of mesoporous silica have been demonstrated in applications, which include chemical sensing, filtration, catalysis, drug delivery and selective biomolecular uptake. These properties depend on the architectural, physical and chemical properties of the material, which in turn are determined by the processing parameters in evaporation-induced self-assembly. In this study, w...

2004

Phosphorus from excess fertilizers and detergents ends up washing into lakes, creeks, and rivers. This overabundance of phosphorus causes excessive aquatic plant and algae growth and depletes the dissolved oxygen supply in the water. In this study, aluminum-impregnated mesoporous adsorbents were tested for their ability to remove phosphate from water. The surface structure of the materials was ...

Journal: :Physical chemistry chemical physics : PCCP 2015
Jiacheng Wang Hu Zhou Jiandong Zhuang Qian Liu

A series of magnetic γ-Fe2O3, Fe3O4, and Fe nanoparticles have been successfully introduced into the mesochannels of ordered mesoporous carbons by the combination of the impregnation of iron salt precursors and then in situ hydrolysis, pyrolysis and reduction processes. The magnetic nanoparticles are uniformly dispersed and confined within the mesopores of mesoporous carbons. Although the as-pr...

2013

Bernardos A., Kouřimská L. (2013): Applications of mesoporous silica materials in food – a review. Czech J. Food Sci., 31: 99–107. Mesoporous silica materials have been developed for some applications in the health field. These solids are used for the controlled release of bioactive molecules, as catalysts in the synthesis of essential nutrients, as sensors to detect unhealthy products etc., wi...

Journal: :Journal of chromatography. A 2007
Guiru Zhu Dongmei Jiang Qihua Yang Jie Yang Can Li

The bifunctionalized mesoporous organosilica spheres with trans-(1R,2R)-diaminocyclohexane (DACH) in the pore were synthesized and their application as chiral stationary phase in high-performance liquid chromatography (HPLC) was demonstrated. Bifunctionalized mesoporous organosilica spheres with narrow particle size distribution of 5-7 microm were prepared by the co-condensation of N-[3-(trieth...

Journal: :Nanoscale 2012
Amirali Popat Jian Liu Qiuhong Hu Michael Kennedy Brenton Peters Gao Qing Max Lu Shi Zhang Qiao

In this proof-of-concept study, an agricultural biocide (imidacloprid) was effectively loaded into the mesoporous silica nanoparticles (MSNs) with different pore sizes, morphologies and mesoporous structures for termite control. This resulted in nanoparticles with a large surface area, tunable pore diameter and small particle size, which are ideal carriers for adsorption and controlled release ...

2015
Jheng-Guang Li Wei-Cheng Chu Shiao-Wei Kuo

We fabricated a series of mesoporous silicas and mesoporous organosilicates with hierarchical porosity through evaporation-induced self-assembly using Pluronic F127 as a template in this study. We could tailor the mesophase of each mesoporous silica sample by varying the weight ratio of its two silica sources: tetraethyl orthosilicate (TEOS) and triethoxysilane hydrosilylated octavinyl polyhedr...

Journal: :Nanoscale 2018
Raheel Akram Muhammad Aizaz Ud Din Sami Ullah Dar Anila Arshad Wei Liu Zhanpeng Wu Dezhen Wu

A hierarchical excavated iron-nitrogen codoped mesoporous carbon (Ex-FeN-MC) electrocatalyst has been successfully synthesized by pyrolysis of the unique ureidopyrimidinone containing organic precursor MAMIS by using silica as the mesoporous template and iron nitrate as the source of iron. The selected organic precursor has multifunctionalities with diverse distribution of nitrogen and oxygen s...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید