نتایج جستجو برای: mesoporous sba

تعداد نتایج: 12271  

Journal: :Journal of colloid and interface science 2013
Ying Yang Xin Zhang Qiubin Kan

Mesostructured and mesoporous materials are emerging as a new class of optical materials. However, their synthesis is nontrivial. In this work, periodic mesostructured metal complex-containing silicas of MCM- and SBA-type bearing homogeneously distributed photoluminescent tri(8-quinolinolato)aluminum inside the channel walls (denoted as Alq3@PMO-MCM and Alq3@PMO-SBA, respectively) have been ach...

Journal: :Talanta 2016
Aisha Bibi Huangxian Ju

This work presents an efficient and selective enrichment method for glycoprotein/glycopeptides with sulfonic acid-functionalized mesoporous silica (SBA-15-SO3H), which is synthesized via simple oxidation of -SH groups with H2O2. The functionalized SBA-15 shows large surface area and accessible pores, and can selectively adsorb glycopeptides via hydrogen bond and hydrophilic interaction. Upon th...

Journal: :The journal of physical chemistry. B 2006
Ying Li Zhaochi Feng Hongchuan Xin Fengtao Fan Jing Zhang Pieter C M M Magusin Emiel J M Hensen Rutger A van Santen Qihua Yang Can Li

We report the preparation of highly ordered mesoporous Fe-Al-SBA-15 with isolated extraframework Fe species under acidic conditions. The materials were characterized by means of UV resonance Raman spectroscopy, in conjunction with BET, XRD, TEM, UV-vis, H2-TPR, FT-IR, and 27Al MAS NMR spectroscopy. The addition of both Fe and Al to the synthesis gel of SBA-15 results in the formation of isolate...

2017
Veridiana Gomes Virginio Natalia Costantin Bandeira Fernanda Munhoz dos Anjos Leal Marcelo Lancellotti Arnaldo Zaha Henrique Bunselmeyer Ferreira

The adjuvant potential of two mesoporous silica nanoparticles (MSNs), SBa-15 and SBa-16, was assessed in combination with a recombinant HSP70 surface polypeptide domain from Mycoplasma hyopneumoniae, the etiological agent of porcine enzootic pneumonia (PEP). The recombinant antigen (HSP70212-600), previously shown as immunogenic in formulation with classic adjuvants, was used to immunize BALB/c...

Journal: :E3S web of conferences 2023

A recoverable Rh/N-SBA-15 heterogeneous catalyst for asymmetric hydroformylation of styrene was prepared by post grafting method. XRD, TG, 29 Si MAS NMR and ICP characterization, revealed that the introduction amino silane RhCl 3 had no adverse influence on ordered mesoporous structure support. The proved to be highly efficacious stable styrene. experimental results demonstrated improved loadin...

Journal: :ACS applied energy materials 2021

SBA-CaCl 2 (SCa) composites with high CaCl content were prepared using the non-functionalized and methyl-and carboxyl-functionalized mesoporous SBA-15 supports their thermochemical heat storage (TCHS) performance have been investigated a TG/DSC system coupled humidity generator. This paper presents influence of silica (SBA-15) functionalization on structural-textural properties SCa consequently...

2009
Qingshan Lu Zhongying Wang Jiangong Li Peiyu Wang Xialei Ye

The two-solvent method was employed to prepare ZnO encapsulated in mesoporous silica (ZnO/SBA-15). The prepared ZnO/SBA-15 samples have been studied by X-ray diffraction, transmission electron microscope, X-ray photoelectron spectroscopy, nitrogen adsorption-desorption isotherm, and photoluminescence spectroscopy. The ZnO/SBA-15 nanocomposite has the ordered hexagonal mesostructure of SBA-15. Z...

2015
Nteseng O. Ramoraswi Patrick G. Ndungu

Mesoporous silica, specifically SBA-15, acid-treated multi-walled carbon nanotubes and a hybrid nanocomposite of SBA-15 coated onto the sidewalls acid-treated multi-walled carbon nanotubes (CNTs) were prepared and used as supports for anatase TiO2. Sol-gel methods were adapted for the synthesis of selected supports and for coating the materials with selected wt% loading of titania. Physical and...

Journal: :Catalysts 2023

Mesoporous Cu(Fe)/SBA-15 catalysts were prepared with distinct metal loadings of ca. 2–10 wt.%. A detailed set characterizations using X-ray diffraction (XRD), electron paramagnetic resonance (EPR), transmission microscopy (TEM), scanning coupled to energy dispersive spectroscopy (SEM-EDS), Mössbauer spectroscopy, photoelectron (XPS) and Raman was performed correlate the relationship among stru...

Journal: :Chemical research in toxicology 2009
Zhimin Tao Bonnie B Toms Jerry Goodisman Tewodros Asefa

We report different mesoporosity-dependent and functional group-dependent cytotoxicity and endocytosis of various silica nanomaterials on suspended and adherent cells. This dependency further varied with incubation time and particle dosage, and appeared to be associated with the particles' endocytotic efficiency and their chemical and physical properties. We studied two common mesoporous nanoma...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید