Effects of precipitation temperature on the photochromic properties of h-MoO3
Source abstract
Abstract
Abstract Hexagonal MoO 3 powders were successfully precipitated at reaction temperatures ranging from 55 to 85 °C. The effects of the synthesis temperature on the crystal structure, crystallite size, morphology, optical properties, and photochromic properties were investigated. The MoO 3 powders were characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV–vis diffuse reflectance spectrophotometer (UV–vis DRS), Fourier transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET) and X-ray photoelectron spectroscopy (XPS). The band gap energy of MoO 3 varied from 3.14 to 3.20 eV, depending on the reaction temperature. The photochromic properties were determined after UV irradiation using the CIE Lab color system. The flower-like MoO 3 crystals obtained at the highest reaction temperature exhibited the best photochromic properties, and hexagonal rod-shaped crystals were synthesized at lower temperatures.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Transition Metal Oxide Nanomaterials · Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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