The morphology of the samples was characterized with a Hitachi S-4700 Field Emission Scanning Electron Microscopy (FESEM) at an acceleration voltage of 15 kV and a Themis Z F-30 Double Cs Corrector Transmission Electron Microscope (TEM) at an acceleration voltage of 300 kV. Nitrogen adsorption/desorption test was carried out with a Micromeritics ASAP 2020 apparatus at 77 K. The SBET was obtained using the Brunauer–Emmett–Teller (BET) method from adsorption data in the relative pressure (P/P0) ranging from 0.05 to 0.3, and the total pore volumes were acquired from the amount of nitrogen adsorbed at a relative pressure of 0.99. The pore size distribution, micropore volume and mesopore volume were calculated from the nitrogen adsorption/desorption data using the Non-Local Density Functional Theory (NL-DFT) software (SAIEUS, Micromeritics Instrument) with a ‘Heterogeneous Surface’ model. The X-ray diffraction (XRD) measurements were performed on a Bruker D8 Advance diffractometer with Cu Kα radiation (k = 0.1542 nm, 40 kV). The Raman spectra were obtained by a Renishaw-inVia Confocal Raman Microscope using excitation wavelength at 514.5 nm. The chemical composition was studied by X-ray photoelectron spectroscopy (XPS) using a Thermo Scientific X-ray photoelectron (K-alpha).
Asap 2020 apparatus
Manufactured by Micromeritics
Sourced in United States
The ASAP 2020 is a surface area and porosity analyzer manufactured by Micromeritics. It is designed to accurately measure the surface area and porosity characteristics of a wide range of materials, including powders, catalysts, and porous solids.
Automatically generated - may contain errors
Lab products found in correlation
X ray photoelectron k alpha, by Thermo Fisher Scientific (1 mentions)
Invia confocal raman microscope, by Renishaw (1 mentions)
D8 advance diffractometer, by Bruker (1 mentions)
Nicolet is10 spectrometer, by Thermo Fisher Scientific (1 mentions)
Avance 3 500, by Bruker (1 mentions)
Miniflex 600, by Rigaku (1 mentions)
Cary 5000 uv vis nir spectrophotometer, by Agilent Technologies (1 mentions)
Agilent cary 630, by Agilent Technologies (1 mentions)
Amicus spectrometer, by Shimadzu (1 mentions)
Autopore 4 9500 porosimeter, by Micromeritics (1 mentions)
V 570 uv vis spectrophotometer, by Jasco (1 mentions)
Evo hd15 sem, by Zeiss (1 mentions)
X pert diffractometer, by Malvern Panalytical (1 mentions)
Zetasizer nano zs90, by Malvern Panalytical (1 mentions)
Rm2235, by Leica camera (1 mentions)
Bx51 optical microscope, by Olympus (1 mentions)
Quanta 200, by Thermo Fisher Scientific (1 mentions)
8 protocols using asap 2020 apparatus
1
Detailed Characterization of Nanomaterials
2
Comprehensive Characterization of Nanomaterials
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The morphologies of the as-prepared samples were investigated by transmission electron microscopy (TEM, TECNAI G2 F20) and scanning electron microscopy (SEM, FEI Nova NANO-SEM 230 spectrophotometer). The Brunauer–Emmett–Teller (BET) surface areas were measured with an ASAP 2020 apparatus (Micromeritics Instrument Corp.). Powder X-ray diffractometer (PXRD) measurements were performed on a Rigaku MiniFlex 600 X-ray diffractometer with Ni-filtered Cu-Kα irradiation (α = 1.5406 Å). Fourier transform infrared (FT-IR) spectra were recorded on a Thermo Scientific Nicolet iS10 spectrometer using KBr pellets at a resolution of 4 cm−1. Solid-state nuclear magnetic resonance (NMR) experiments were carried out on Bruker Avance III 500. X-ray photoelectron spectroscopy (XPS) data were obtained on a PHI Quantum 2000 XPS system equipped with a monochromatic Al Kα X-ray source. All the binding energies were referenced to the C 1s peak (284.6 eV) of the surface adventitious carbon. Solid-state UV-vis diffuse reflectance spectra (UV-vis DRS) were recorded by an Agilent Cary 5000 UV-vis-NIR spectrophotometer. Electron paramagnetic resonance (EPR) spectra were acquired by a Bruker model A300 X-band spectrometer equipped with a Mercury-xenon lamp (LC8, HAMAMATSU PHOTONICS K.K, Japan).
3
Comprehensive Characterization of MgO
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The crystal structures of the obtained samples were examined by X-ray diffraction (XRD) on a D8 Advance X-ray diffractometer (Germany) using Cu Kα radiation.
The microscopic morphology of MgO was analysed by scanning electron microscopy (SEM) on a Hitachi S-4100 FE-SEM instrument (Japan) at 10 kV and transmission electron microscopy (TEM) on a Tecnai G2 F20 field emission transmission electron microscope (USA) at 200 kV.
N2 adsorption/desorption isotherm was recorded on a Micromeritics ASAP 2020 apparatus (USA) at 77 K for calculating the specific surface area and pore size distribution by the Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) methods, respectively.
The vibrational characteristics of the obtained samples were recorded by a Fourier transform spectrometer (FT-IR; Agilent Cary 630, Agilent, America) in pressed KBr pellets.
The X-ray photoelectron spectrum (XPS) of N-O-MgO was obtained on a Kratos AMICUS spectrometer (SHIMADZU, JP) using Al Kα radiation. The binding energy of O element was calibrated relative to the carbon impurity with C 1s at 285 eV.
The concentrations of MO and MB in the aqueous solutions were measured using a Shimadzu UV-2550 UV-visible spectrometer (Japan).
The microscopic morphology of MgO was analysed by scanning electron microscopy (SEM) on a Hitachi S-4100 FE-SEM instrument (Japan) at 10 kV and transmission electron microscopy (TEM) on a Tecnai G2 F20 field emission transmission electron microscope (USA) at 200 kV.
N2 adsorption/desorption isotherm was recorded on a Micromeritics ASAP 2020 apparatus (USA) at 77 K for calculating the specific surface area and pore size distribution by the Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) methods, respectively.
The vibrational characteristics of the obtained samples were recorded by a Fourier transform spectrometer (FT-IR; Agilent Cary 630, Agilent, America) in pressed KBr pellets.
The X-ray photoelectron spectrum (XPS) of N-O-MgO was obtained on a Kratos AMICUS spectrometer (SHIMADZU, JP) using Al Kα radiation. The binding energy of O element was calibrated relative to the carbon impurity with C 1s at 285 eV.
The concentrations of MO and MB in the aqueous solutions were measured using a Shimadzu UV-2550 UV-visible spectrometer (Japan).
4
Characterization of Nanofiber Structures
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The structures of the prepared nanofibers were observed with a scanning electron microscope TS 5130 VEGA, TESCAN, Czech Republic. The samples were dried at 80 °C under vacuum overnight and platinum sputtered. Similar preparation procedure was used for the samples after immersion into the water for 72 h. The mean fiber diameter was determined from 30 measurements on the SEM images at a magnification of 5000×. Mercury porosimetry measurements were made using an Autopore IV 9500 porosimeter, Micromeritics, USA, and the specific surface areas were calculated based on nitrogen absorption/desorption isotherms recorded on an ASAP 2020 apparatus Micromeritics, USA.
5
Comprehensive Characterization of Foams
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The surface morphology of the foams was analyzed using a Hitachi S4800 scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX) was conducted on Zeiss EVO HD15 SEM. The crystalline structure of foams was characterized by X-ray diffraction on a Panalytical Xpert diffractometer using CuKα radiation as the X-ray monochromatic source. Absorbance spectra were obtained with a Jasco V-570 UV-Vis spectrophotometer in the wavelength range of 200–800 nm. FTIR spectra were obtained with a Nexus spectrometer in the range of 500–4000 cm−1. The optical bandgap was determined from absorbance data and using the absorption spectrum fitting method (ASF) [30 (link)]. Gas (nitrogen) sorption isotherms were recorded using a Micromeritics ASAP2020 apparatus. Specific surface area (SSA) was obtained by using the Brunauer–Emmett–Teller (BET) model and the pore size distribution was calculated by applying the Barret–Joyner–Halenda (BJH) method on the desorption branch.
6
Functionalization of MCM-41 Mesoporous Silica
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Post synthetic functionalization strategy was employed for grafting amino groups onto MCM-41 MSNs. 15 Accurately weighed 500 mg MCM-41 was transferred to 100 mL Round bottom flask (RBF). Followed by addition of 50 mL toluene and 6.87 mL of APTES. The reaction mixture was heated to a higher temperature of 70°C for 12 h. Thereafter it was allowed to cool to room temperature, with subsequent filtration and washing with methanol. The synthesized carrier was tagged as MCM-41-AMN. The grafting of amine group (DLS) using Malvern Zetasizer Nano ZS90 instrument. Small angle XRD measurements were carried out on EMPYREAN, PAN alytical model equipped with Cu K radiation beam and operating at 40 kV and 30kV to determine characteristic peaks unique to MCM-41. Crystalline nature of BIC and absence of this post entrapment into mesoporous core was confirmed by Wide Angle XRD spectra taken on Bruker AXS instrument with D8 Focus software installed. Surface area and porosity measurements were carried out by Nitrogen adsorption-desorption isotherm analysis using ASAP 2020 apparatus from micromeritics (Norcross, USA) temperature of -196°C. Before proceeding with analysis, the samples were degassed under vacuum for 5h at 70°C in the degas port of adsorption analyser.
7
Porous Carbon Characterization Protocol
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One hydrochar, prepared at 180°C and 6h, was carbonised under nitrogen flow (80 mL min -1 ) in a tubular furnace. The heating rate was set at 1°C min -1 up to 900°C, dwell time was 3 h, and cooling was carried out under nitrogen flow.
Pore texture parameters were derived from nitrogen and carbon dioxide adsorption isotherms at -196 and 0°C, respectively, using a Micromeritics ASAP 2020 apparatus.
Samples were degassed for 48 h under secondary vacuum at 270°C. Surface area (S NLDFT ), micropore volume (V ,NLDFT ), as well as pore size distribution (PSD) were determined by application of the 2D-NLDFT heterogeneous surface model non-local (Jagiello and Olivier, 2013) (link) to both CO 2 and N 2 adsorption data using the SAIEUS® routine provided by Micromeritics.
Pore texture parameters were derived from nitrogen and carbon dioxide adsorption isotherms at -196 and 0°C, respectively, using a Micromeritics ASAP 2020 apparatus.
Samples were degassed for 48 h under secondary vacuum at 270°C. Surface area (S NLDFT ), micropore volume (V ,NLDFT ), as well as pore size distribution (PSD) were determined by application of the 2D-NLDFT heterogeneous surface model non-local (Jagiello and Olivier, 2013) (link) to both CO 2 and N 2 adsorption data using the SAIEUS® routine provided by Micromeritics.
8
Comprehensive Characterization of Ceramic Scaffold Materials
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The morphology of the CSM was observed on a scanning electron microscope (SEM) (Quanta 200, FEI) at an accelerating voltage of 20.0 kV after sputter-coating with gold. To characterize the distribution of pores within the particles, the cross-sectional morphology of the CSM was visualized as follows. The CSM were first stained with 1% (w/v) Rhodamine B solution in ethanol. After vacuum drying at 30C for 10 h, they were embedded in paraffin and cut into 5 μm thick slices on a microtome (Leica RM2235). The cross-section structure was then observed on an Olympus BX51 optical microscope. The specific surface area was characterized by nitrogen adsorption-desorption isotherm analysis at 77 K (Micromeritics ASAP 2020 apparatus). Other physical properties that were characterized include the porosity, pore size distribution, density, water absorption capacity and the elastic modulus. The protocols for these studies are provided in the Supplementary Information.
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