morphological and textural properties of mesoporous silica

Textural and morphological studies of transition metal

2019-4-9Textural and morphological studies of transition metal doped SBA-15 textural properties 1 Introduction Over the past two decades MCM-n and SBA-n series have generated immense interest in the synthesis of periodic mesoporous silica materials which made remarkable progress in diverse applications such as organic transformation 1 enzyme

Mesoporous silica reinforced polybutadiene rubber

Improvement in Comprehensive Properties of Poly(Methyl Methacrylate)-Based Gel Polymer Electrolyte by a Core-Shell Poly(Methyl Methacrylate)-Grafted Ordered Mesoporous Silica Mesoporous silica reinforced polybutadiene rubber hybrid composite

Mesoporous Silica‐Confined Manganese Oxide

Manganese(IV) oxide was synthesized through crystallization in confined space by using the SBA‐15 silica support The evolution of textural morphological structural and redox properties of the manganese phase in the composites has been studied in terms of different parameters such as impregnation route manganese loading and activation temperature

ZnO:SBA

2018-4-6Abstract Aim: We evaluated the effects of the incorporation of zinc oxide (ZnO) nanoparticles in a mesoporous matrix aiming to improve the textural structural and morphological properties and verify their safety so that they can be applied in sunscreen cosmetics Materials and Methods: ZnO nanoparticles were incorporated into an ordered mesoporous silica matrix known as Santa Barbara

Theragnostic potentials of core/shell mesoporous

The advantages of silica shell over metal or metal nanoparticles include the biocompatibility of mesoporous silica shell ease of surface functionalization for biomedical applications and non-interference of the inherent properties of metal or metal oxide embedded in core [localized surface plasmon resonance (SPR) of noble metal nanoparticles

Controlling the morphological and textural properties of

2004-4-30Controlling the morphological and textural properties of spray-dried mesoporous silica particles Author: alonso Last modified by: nerney Created Date: 4/6/2004 3:39:00 PM and textural properties of spray-dried mesoporous silica particles Controlling the morphological and textural properties of spray-dried mesoporous silica particles

Mesoporous Silica‐Confined Manganese Oxide

Manganese(IV) oxide was synthesized through crystallization in confined space by using the SBA‐15 silica support The evolution of textural morphological structural and redox properties of the manganese phase in the composites has been studied in terms of different parameters such as impregnation route manganese loading and activation temperature High performances of nanoscaled

Selective acid

2017-5-3Assembly of mesoporous molecular sieves containing wormhole motifs by a nonionic surfactant pathway: control of pore size by synthesis temperature Angew Chem Int Ed En 1997 36: 516–518 Rc B Molnar A Forgo P Mohai M Bertti I A comparative study of solid sulfonic acid catalysts based on various ordered mesoporous silica materials

Synthesis Duration

Abstract: Pure silica mesoporous molecular sieve (MMS) solid has been synthesized at 100C by hydrothermal process The effect of synthesis duration from 2 to 10 days has been investigated on the physicochemical properties of mesoporous molecular sieve Samples were characterized by low angle XRD N 2 adsorption-desorption and HRTEM analysis

General Method for the Synthesis of Hollow

The flexibility of this method allows for independent control of the morphological (i e core diameter and shell thickness) and textural features of the carbon spheres In particular it is demonstrated that the size of the pores within the mesoporous shell can be precisely tailored over an extended range (2–20 nm) by simply adjusting the

Mesoporous Silica‐Confined Manganese Oxide

Manganese(IV) oxide was synthesized through crystallization in confined space by using the SBA‐15 silica support The evolution of textural morphological structural and redox properties of the manganese phase in the composites has been studied in terms of different parameters such as impregnation route manganese loading and activation temperature High performances of nanoscaled

Non

2018-3-2In particular mesoporous silica materials have attracted attention in materials science due to their morphological and textural properties such as high specific surface area large pore volumes narrow pore-size distribution wide pore dimensions and regular pore structure (Zhao et al 1996 Galarneau et al 2001) As a result such silica

Phase Change Materials Based on Mesoporous Silica:

A promising class of porous matrices is represented by Mesoporous Silica Nanomaterials (MSN) MSN offer high pore volume and surface area often in excess of 1 cm3/g and 1000 m2/g respectively monodisperse pores high chemical and thermal stability and ease of tailoring their textural morphological and surface properties through chemical

Effect of mesoporous silica under Neisseria

2011-7-25Some mesoporous textural properties of SBA-15 and SBA-16 were obtained by the nitrogen adsorption measure Table 2 summarizes these properties of SBA-15 and SBA-16 BET-specific surface area S BET was calculated from adsorption data in the relative pressure interval P/P 0 = 0 045-0 25 A cross-sectional area of 0 162 nm 2 was used for the nitrogen molecule in the BET calculations

MESOPOROUS SILICA (MCM

2017-6-26Mesoporous silica-based materials like MCM-41 have a high specific surface area properties that provide a high adsorption capacity towards pollutants However these materials have low hydrothermal stability which repre- the preparation procedures and selected textural and/ or morphological characteristics of synthetized MCM-41

General Method for the Synthesis of Hollow

The flexibility of this method allows for independent control of the morphological (i e core diameter and shell thickness) and textural features of the carbon spheres In particular it is demonstrated that the size of the pores within the mesoporous shell can be precisely tailored over an extended range (2–20 nm) by simply adjusting the

Atomistic Model of Micelle

2019-12-12The structural morphological and adsorption properties of MCM-41 porous silicas are investigated using a realistic numerical model obtained by means of ab initio calculations [Ugliengo P et al Adv Mater 2008 20 1] Simulated X-ray diffraction small angle neutron scattering and electronic microscopy for the atomistic model are in good agreement with experimental data The

Non

2011-10-26Nevertheless mesoporous silica materials have attracted attention in the science materials due to their morphological and textural properties such as high specific surface area large pore volumes narrow pore size distribution wide pore dimensions and regular pore structure (Zhao et al 1996 Galarneau et al 2001) As a result silica

Mesoporous silica reinforced polybutadiene rubber

Improvement in Comprehensive Properties of Poly(Methyl Methacrylate)-Based Gel Polymer Electrolyte by a Core-Shell Poly(Methyl Methacrylate)-Grafted Ordered Mesoporous Silica Mesoporous silica reinforced polybutadiene rubber hybrid composite

Fabrication and textural characterization of nanoporous

textural characteristics such as high surface area large pore volume and uniform pore size distribution The amount of CuO nanoparticles in the nanochannels of the nanoporous carbon could be controlled by simply varying the Si/Cu molar ratio of the mesoporous silica template Morphological characterization by SEM and TEM reveals that high

Mesocellular Silica Foams (MCFs) with Tunable Pore Size

2020-7-31isotherms) textural (SEM TEM) acid-base (potentiometric titration) adsorption properties and thermal characteristics of the obtained lysozyme/silica composites were studied The protein adsorption equilibrium and kinetics showed significant dependence on silica pore size For instance

Uniform and size

A family of mesoporous silica microspheres with fibrous morphology and different particle sizes ranging from about 400 to 900 nm has been successfully synthesized through a facile self-assembly process The structural morphological and textural properties of the samples were well characterized by scanning electron microscopy (SEM) transmission electron microscopy (TEM) nuclear magnetic

On the origin of blue and UV emission bands in

2019-1-30In this paper we present a review of the main results we obtained studying the emission properties of mesoporous silica in the UV-VIS range Two main emission bands were investigated the blue one peaked in the 400–450 nm range and the UV one centered at about 300–350 nm both excited in the UV and vacuum UV range The origin of the two bands investigated through optical