All starting materials, reagents, and solvents used in experiments were commercially available, high-grade purity materials and used without further purification. Thermogravimetric analyses of the samples were performed on a PerkinElmer TG-7 analyzer heated from room temperature to 700 °C in flowing N2/O2 with a heating rate of 20 °C/min. Fourier transform infrared spectroscopy (FTIR) measurements were recorded in the range of 4,000–400 cm−1 on a Mattson Alpha-Centauri spectrometer using the technique of pressed KBr pellets. PXRD measurements were recorded ranging from 5 to 50° at room temperature on a D/max 2500 VL/PC diffractometer (Japan) equipped with graphite monochromatized Cu Kα radiation (λ = 1.54060 Å). The UV-Vis-near infrared spectra were performed on a Varian Cary 5000. XPS and UPS were measured on an Escalab 250Xi. PL spectra were recorded by a FluoroMax-4 spectrofluorometer (HORIBA Scientific). In situ DRIFTS was carried out on a Bruker Tensor II FTIR NEXUS. In situ XPS tests were performed on a ThermoFisher Nexsa.
Tensor 2 ftir nexus
Manufactured by Bruker
The Tensor II FTIR NEXUS is a Fourier Transform Infrared (FTIR) spectrometer designed for laboratory use. It is capable of analyzing the infrared absorption spectrum of various solid, liquid, and gaseous samples. The core function of the Tensor II FTIR NEXUS is to provide high-quality infrared spectroscopic data for analytical and research applications.
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2 protocols using tensor 2 ftir nexus
1
Comprehensive Material Characterization Protocol
2
In Situ FTIR Spectroscopy of Isopropanol Sorption
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The in situ FTIR transmission spectra were measured by an in situ diffuse reflectance Fourier transform infrared spectrometer (Bruker Tensor II FTIR NEXUS). Before the experiment, the sample was degassed for 4 h at 150 °C. Then each sample was purged with nitrogen for 1 h to blow out all the gases adsorbed on the samples. After that, a mixed gas of 0.1 mL isopropanol and water vapor was flowed into the specimen chamber for another 30 min to ensure sorption equilibrium before irradiation. The FTIR transmission spectra of the sample were recorded every 2 min.
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