Hollow mesoporous TiO2/WO3 sphere heterojunction with high visible-light-driven photocatalytic activity
Source abstract
Abstract
Abstract In this work, series of TiO2/WO3 hierarchical hollow sphere were fabricated by a simple one-pot method. XRD , SEM, TEM, XPS , and UV–vis DRS were carried out to systematically investigated the structure and properties of the samples with varying loadings of TiO 2. And their photocatalytic activity was evaluated by photodegradation of malachite green under visible light irradiation. The results demonstrated that all the as-prepared TiO2/WO3 microspheres showed enhanced photodegradation efficiency compared to pure WO 3 and TiO2 under visible light irradiation. The increasement of photocatalytic performance could be attributed to the efficient charge separation across the TiO2/WO3 heterostructure interface and highly effective utilization of visible light. Finally, a plausible mechanism of enhanced photodegradation activity upon the TiO 2/WO3 heterojunctions has been proposed based on experimental results.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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