Anatase TiO 2 hierarchical microspheres with selectively etched high-energy {001} crystal facets for high-performance acetone sensing and methyl orange degradation
Source abstract
Abstract
Abstract Novel anatase TiO 2 hierarchical microspheres with selectively etched high-energy {001} crystal facets were synthesized by a facile hydrothermal method, in which etched degrees of {001} facets could be facilely tuned by pH value. Gas sensing properties of the etched TiO 2 microspheres were investigated for the first time. Interestingly, it was found that the etched-TiO 2 microspheres showed a much higher acetone response than that of TiO 2 microspheres with intact {001} facets and slightly-etched {001} facets. The relevant gas sensing mechanism was discussed in detail. Moreover, the etched-TiO 2 microspheres also showed a potential application in photocatalytic degradation of methyl orange. We expect this work would make one step closer to fully understand crystal-facets-dependent gas-sensing effect of TiO 2 , and provide a new TiO 2 material platform for gas sensing and photcatalysis application.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · TiO2 Photocatalysis and Solar Cells · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
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