wang2015 chitosan–silica composite aerogels preparation characterization and congo red adsorption

... ethanol and acetone were selected for testing the gas sensitivity of the materials The detection system and electric circuit have been described in our previously studies [15–17] Briefly, the materials ... From the TEM and HRTEM micrographs of S2(150 8C), the amorphous polymer, granular and stick g-Fe2O3 particles could be seen, and the length and width of the stick form wa...

Ngày tải lên: 21/03/2014, 12:17

... performances of these acid catalysts are still inferior compared with the base catalysts For this reason, a wide variety of solid bases have been examined for transesterification reactions for biodiesel ... of used vegetable oils using the heterogeneous WO3/ZrO2 catalyst for production of biodiesel Bioresour Technol 2010;101:S59e61 [10] Lou WY, Zong MH, Duan ZQ Ef...

Ngày tải lên: 05/05/2014, 08:42

... conduction band (CB) and the valence band (VB) of WO3 were higher than the CB and VB of TiO2 and fullerene When the hole and electron pairs were also generated and separated on the interface of WO3, ... Preparation, characterization and photocatalytic behavior of WO3-fullerene/TiO2 catalysts under visible light Nanoscale Research Letters 2011 6:459 Submit y...

Ngày tải lên: 21/06/2014, 01:20

... Bovine, and Lysozyme Experimental Sodium tungstate, sodium borohydride, hydrochloric acid (37%), and ethanol were purchased from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China) and used ... temperature was 100 °C and that the NaBH4 powders must be added step-by-step because the reaction at 100 °C takes place vigorously Coomassie Brilliant Blue and the proteins adsorption exp...

Ngày tải lên: 22/06/2014, 00:20

... outstanding anti-infective properties [18] Both amphotericin B and miconazole self-assemble and solubilize at hydrophobic sites of DODAB or DHP bilayer fragments in water solution exhibiting in ... fungus viability For final coverage with polylysines (PL) of increasing molecular weight at mg/mL PL, there was an increase in the final zeta-potential modulus and a larger loss...

Ngày tải lên: 11/08/2014, 00:22

... Thesis Title: PREPARATION, CHARACTERIZATION AND PROPERTY STUDIES OF CARBON NANOSTRUCTURES DERIVED FROM CARBON RICH MATERIALS Abstract Carbon nanomaterials have always been an area of interest for ... amorphous carbon Physical and chemical properties of carbon vary in each of the allotropes For example, diamond is one of the hardest materials existin...

Ngày tải lên: 10/09/2015, 15:48

... magnets The synthetic procedure of composite beads was schematically presented in Fig 3.2 Application of chitosan/ magnetite composite beads for removal Ni(II) and Pb(II) in solution 3.2.1 Isotherm adsorption ... lines of composite patterns indicated that Results and discussion 3.1 Characterization of chitosan/ magnetite composite beads 3.1.1 Morpho...

Ngày tải lên: 02/07/2014, 14:14

... single step process using thermal evaporation of silicon monoxide under argon atmosphere with traces of oxygen The nanowires were free from metal contaminations and showed blue photoluminescence at ... its simplicity and the low cost Conclusions Amorphous silicon dioxide nanowires of several hundred microns in length and tens of nanometers in diameter have been...

Ngày tải lên: 16/03/2014, 15:18

... WELL- DEFINED SILICA- POLYMER CORE- SHELL HYBRIDS AND POLYMER HOLLOW STRUCTURES: SYNTHESIS, CHRACTERIZATION AND APPLICATIONS LI GUOLIANG M Sci., Polymer Chemistry and Physics Nankai ... SUMMARY Well- defined inorganic /polymer core- shell hybrids and polymer hollow micro-/nanostructures are of great interest because of their diverse applications in che...

Ngày tải lên: 10/09/2015, 08:40

... nm, and (e) 7.1 nm 3.2 Synthesis and Characterization of Pt /SBA-15 Catalysts 3.2.1 Incorporation of the Pt Particles in SBA-15 Structure SBA-15 with a pore diameter of 9.0 nm was used as a catalyst ... the conditions of catalyst synthesis The minimal change in SBA-15 physical parameters after incorporation of Pt into the silica reveals that there is no signific...

Ngày tải lên: 08/10/2015, 23:16

... press as: Liu X, et al., Preparation, structure, and properties of solution-polymerized styrene-butadiene rubber with functionalized end-groups and its silica-filled composites, Polymer (2014), ... press as: Liu X, et al., Preparation, structure, and properties of solution-polymerized styrene-butadiene rubber with functionalized end-groups and its silic...

Ngày tải lên: 11/06/2016, 22:43

... of the activity and selectivity of red mud used as a catalyst for the hydrogenation of anthracene oil was studied Reactions were carried out at constant temperature, pressure and flow-rates Catalyst ... composition of the red mud can be found in Table Sulfided red mud catalytic activity was tested by hydrogenating a light fraction of anthracene oil suppli...

Ngày tải lên: 23/09/2012, 14:46

... reveals the highest similarity with the hypothetical NH from Sulfolobus tokodaii (64% sequence identity), from Sulfolobus acidocaldarius (60% sequence identity), and with a second hypothetical NH from ... Purication and characterization of extremely thermophilic and thermostable 5Â-methylthioadenosine phosphorylase from the archaeon Sulfolobus solfataricus Puri...

Ngày tải lên: 18/02/2014, 17:20

... al Characterization of respiratory complex II Fig Sequencing of porcine heart mitochondrial complex II Total RNA was extracted and purified from the fresh porcine heart, and genes of four complex ... sequencing and crystallization of mitochondrial complex II from porcine heart Characterization of respiratory complex II be the case...

Ngày tải lên: 19/02/2014, 02:20