The transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) images of the GS-CDs were obtained using a Tecnai F20 electron microscope (FEI Company, Netherlands). Dynamic light scattering (DLS) measurement was carried out by a Zetasizer Nano-ZS (Malvern Instruments). We also used a Shimadzu UV-2550 ultraviolet-visible spectrophotometer to obtain the ultraviolet-visible absorption spectrum, and a Hitachi F-2700 fluorescence spectrophotometer to obtain the fluorescence spectra. The infrared spectra were obtained using a Vector 33 Fourier transform infrared spectrometer (Bruker, Germany). An FLS 920 steady-state/transient fluorescence spectrometer (Edinburgh, Scotland) was used to obtain the fluorescence lifetime and quantum yield. X-ray photoelectron spectroscopy was conducted on an ESCALAB 250 X photoelectron spectrometer (Thermo Scientific, USA). Mass spectra were analyzed by Q-Exactive high-resolution LC/MS analyzer (Thermo Scientific, USA).
Vector 33 fourier transform infrared spectrometer
Manufactured by Bruker
Sourced in Germany, Austria
The Vector 33 Fourier transform infrared (FTIR) spectrometer is a laboratory instrument designed for molecular analysis. It uses infrared light to measure the absorption and emission characteristics of a sample, providing information about its molecular structure and composition. The core function of the Vector 33 FTIR spectrometer is to accurately and efficiently perform spectroscopic analysis on a wide range of materials.
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Lab products found in correlation
3 protocols using vector 33 fourier transform infrared spectrometer
1
Characterization of Graphene Quantum Dots
2
Synthesis and Characterization of Novel Compounds
Check if the same lab product or an alternative is used in the 5 most similar protocols
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All chemicals, reagents, and solvents were supplied by Merck, Sigma-Aldrich, or local Companies and used as received, except for benzaldehyde which a fresh-distilled sample was used. X-ray diffraction (XRD) patterns were obtained using an X’Pert PRO MPD PANalytical Company. The infrared spectra of the catalyst and products were measured by a Bruker-Vector 33 Fourier transform infrared spectrometer (FTIR) using KBr discs. Scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) analysis were carried out on a TESCAN-Mira III. The thermogravimetric analysis (TGA) and derivative thermogravimetric (DTG) curves were determined on a TGA/DSC Mettler Toledo apparatus. 1H and 13C nuclear magnetic resonance (NMR) spectra were recorded on a Bruker AVANCE 500 in DMSO-d6 at ambient temperature. The CHN analysis were measured by a Thermo Scientific Eager 800. All compounds, except 5c and 5i , are known and their structures were confirmed by comparison of their melting points as well as FTIR and 1H NMR spectral data with the authentic samples (Supplementary Information).
3
Nanotechnology-Assisted Oil Recovery Enhancement
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Experimental materials: Nano SiO2 (15 nm) is provided
by Ningbo Jinlei Nanomaterial Technology Co., Ltd. Aminopropyl triethoxysilane
and trichloro(octyl)silane were supplied by Shanghai Aladdin Biochemical
Technology Co., Ltd. Paraffin wax is provided by Shanghai Maclin Biochemical
Technology Co., Ltd. The crude oil samples were provided by a low-permeability
oilfield in northwest China at a reservoir temperature of 65 °C;
the oil has a density of 0.82 g/cm3 and a viscosity of
2.84 mPa s. Both the injected water and formation water have a salinity
of 80,000 mg/L, and the specific ion composition is shown inTable 1 . The core is a natural
outcrop core with a length of about 5.00 cm and a diameter of about
2.50 cm, and the permeability measured by gas is in the range of 0.968–5.031
× 10–3 μm2.
Experimental instrument: Litesizer 500 nano particle
size and zeta
potential analyzer, Anton Paar, Austria; Vector-33 Fourier transform
infrared spectrometer, Bruker Instruments, Germany; EVO-18 analytical
scanning electron microscopy, Carl Zeiss, Germany; and TEXAS-500 Rotary
drop interfacial tensiometer, Kono Industrial Co., Ltd., OCA50 Automatic
contact Angle measuring instrument, Dataphysics, Germany; and core
displacement test equipment, Changzhou Zhongbei Instrument Co., Ltd.
by Ningbo Jinlei Nanomaterial Technology Co., Ltd. Aminopropyl triethoxysilane
and trichloro(octyl)silane were supplied by Shanghai Aladdin Biochemical
Technology Co., Ltd. Paraffin wax is provided by Shanghai Maclin Biochemical
Technology Co., Ltd. The crude oil samples were provided by a low-permeability
oilfield in northwest China at a reservoir temperature of 65 °C;
the oil has a density of 0.82 g/cm3 and a viscosity of
2.84 mPa s. Both the injected water and formation water have a salinity
of 80,000 mg/L, and the specific ion composition is shown in
outcrop core with a length of about 5.00 cm and a diameter of about
2.50 cm, and the permeability measured by gas is in the range of 0.968–5.031
× 10–3 μm2.
Experimental instrument: Litesizer 500 nano particle
size and zeta
potential analyzer, Anton Paar, Austria; Vector-33 Fourier transform
infrared spectrometer, Bruker Instruments, Germany; EVO-18 analytical
scanning electron microscopy, Carl Zeiss, Germany; and TEXAS-500 Rotary
drop interfacial tensiometer, Kono Industrial Co., Ltd., OCA50 Automatic
contact Angle measuring instrument, Dataphysics, Germany; and core
displacement test equipment, Changzhou Zhongbei Instrument Co., Ltd.
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