نتایج جستجو برای: core shell microspheres

تعداد نتایج: 266330  

2016
Hongliang Li Hui Liu Aiping Fu Guanglei Wu Man Xu Guangsheng Pang Peizhi Guo Jingquan Liu Xiu Song Zhao

Three kinds of N-doped mesoporous TiO₂ hollow spheres with different N-doping contents, surface area, and pore size distributions were prepared based on a sol-gel synthesis and combined with a calcination process. Melamine formaldehyde (MF) microspheres have been used as sacrificial template and cetyltrimethyl ammonium bromide (CTAB) or polyvinylpyrrolidone (PVP) was selected as pore-directing ...

Journal: :The Analyst 2013
Rijun Gui Ajun Wan Hui Jin

Compared to single photoluminescence (PL) intensity-based sensors, dual-emitting-based ratiometric PL sensors are more preferable because the influence from PL fluctuation in the reagents and background PL can be reduced to a minimum. However, so far no report has been directed to the ratiometric PL detection of 5-fluorouracil (5-FU). In this study, for the first time, high-quality quantum dots...

Journal: :Energies 2022

The development of low-cost electrode materials with enhanced activity and favorable durability for hydrogen evolution reactions (HERs) is a great challenge. MoS2 an effective electrocatalyst unique layered structure. In addition, aluminosilica shells can not only provide more hydroxyl groups but also improve the catalyst as protective shell. Herein, we have designed hard-template route to synt...

2010
A. ZVONAR M. GOSENCA M. GAŠPERLIN

In recent years there has been increasing attention given to the utility of selfmicroemulsifying systems (SMES) for improving the gastrointestinal absorption of drugs with inadequate biopharmaceutical properties. Microencapsulation of those systems into polymeric matrix is one of the solidification techniques that allow formulation of solid self-microemulsifing formulations. Microcapsules with ...

Journal: :international journal of nano dimension 0
m. k. otoufi department of physics, faculty of science, ferdowsi university of mashhad, mashhad, iran. n. shahtahmasebebi department of physics, faculty of science, ferdowsi university of mashhad, mashhad, iran. a. kompany centre of nanoresearch, ferdowsi university of mashhad, mashhad, iran. e. goharshadi department of chemistry, faculty of science, ferdowsi university of mashhad, mashhad, iran.

metal nanoshells consists of a dielectric core surrounded by a thin noble metal shell, possess unique optical properties, which render nanoshells attractive for use in different technologies. this paper reports a facile method for growth of small gold nanoparticles on the functionalized surface of larger silica nanoparticles. mono-dispersed silica particles and gold nanoparticles were prepared ...

Bahareh Morovvati, Rasoul Malekfar,

The active substrates in surface enhanced Raman scattering (SERS) spectroscopy were prepared through self-assembly of nanoparticles on functionalized glasses. Colloidal silver nanoparticles (Ag NPs) were prepared chemically in two different sizes by reduction of AgNO3 using trisodium citrate and sodium borohydride. Gold–silver core–shell nanoparticles were also prepared to compare between the o...

Journal: :Journal of Advanced Ceramics 2023

Ti3C2Tx MXene shows great potential in the application as microwave absorbers due to its high attenuation ability. However, excessively permittivity and self-stacking are main obstacles that constrain wide range of applications. To tackle these problems, herein, microspheres SiO2@Ti3C2Tx@CoNi with hydr...

2016
Xin Liu Yinliang Li Jun Yang Bo Wang Mingguo Ma Feng Xu Runcang Sun Xueming Zhang

The fabrication of reusable and biodegradation materials from renewable resources such as cellulose is essential for a sustainable world. The core-shell structured CdS-decorated TiO₂/Carbon microspheres (CdS/TiO₂/Carbon MS) photocatalyst was synthesized with controlled hydrolysis and a novel sonochemical method. It was prepared by using crosslinked microcrystalline cellulose as the core, tetrab...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید