Preparation, structures and photoluminescent enhancement effect of PbWO4–TiO2 composite nanofilms
Source abstract
Abstract
A novel route for preparing PbWO4–TiO2 nanofilms on a glass substrate is firstly proposed. The collodion is used as a dispersant and film-forming agent. The nanofilms are characterized through SEM, XRD, TG/DTA, PL and IR, respectively. The results of XRD indicate PbWO4 particles with tetragonal scheelite structure and TiO2 particles with Anatase phase, and SEM shows they are well dispersed in the substrate. Compared with nanoparticles, when TiO2 nanoparticles are added in 5% ratio, the PL intensities at 395 nm of PbWO4 nanofilms are enhanced obviously. IR spectrum reveals a large absorption band between 750 and 870 cm−1, which is the W–O stretching vibration in WO4 tetrahedron.
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Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Gas Sensing Nanomaterials and Sensors · Advanced Photocatalysis Techniques
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References (21)
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