Fesem vp scanning electron microscope

The specific surface area and pore distribution were investigated using a Quantachrome Autosorb-IQ porosity equipment (Quantachrome Instruments, Boynton Beach, FL, USA) by Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) methods. Prior to analysis, the nanomaterials were degassed at 373–393 K. The morphology of all samples (before and after adsorption) was investigated using a FESEM VP Scanning Electron Microscope (Carl Zeiss, Oberkochen, Germany) at 0.8 nm resolution, 2.5 nm VP mode and 30 kV; also, EDS was applied for the determination of metal content. Functional groups were elucidated using a Cary 630 ATR-FTIR spectrophotometer (Agilent Technologies, Inc., Santa Clara, CA, USA). Prior to analysis, the samples were ground in an agate mortar and dried at 80 °C under vacuum. The FTIR spectra were registered between 4000 and 400 cm⁻¹ (32 scans at a resolution of 8 cm⁻¹ and a threshold of 0.002), and MicroLab Expert v.1.0.0 Software (Agilent Technologies, Inc., Santa Clara, CA, USA) was used for the interpretation.
The elemental analysis was achieved by combustion and pyrolysis coupled with gas chromatography (Flash EA2000, Thermo Scientific, Waltham, MA, USA) [23 (link)].

The specific surface area and pore distribution were investigated using a Quantachrome Autosorb-IQ porosity equipment (Quantachrome Instruments, Boynton Beach, FL, USA) by Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) methods. Prior to analysis, the nanomaterials were degassed at 373–393 K. The morphology of all samples (before and after adsorption) was investigated using a FESEM VP Scanning Electron Microscope (Carl Zeiss, Oberkochen, Germany) at 0.8 nm resolution, 2.5 nm VP mode and 30 kV; also, EDS was applied for the determination of metal content. Functional groups were elucidated using a Cary 630 ATR-FTIR spectrophotometer (Agilent Technologies, Inc., Santa Clara, CA, USA). Prior to analysis, the samples were ground in an agate mortar and dried at 80 °C under vacuum. The FTIR spectra were registered between 4000 and 400 cm⁻¹ (32 scans at a resolution of 8 cm⁻¹ and a threshold of 0.002), and MicroLab Expert v.1.0.0 Software (Agilent Technologies, Inc., Santa Clara, CA, USA) was used for the interpretation.
The elemental analysis was achieved by combustion and pyrolysis coupled with gas chromatography (Flash EA2000, Thermo Scientific, Waltham, MA, USA) [23 (link)].