Study on the charge carrier transport property generated by photo/piezo synergy field over barium strontium titanate

Photocatalysis Meets Piezoelectricity in a Type-I Oxygen Vacancy-Rich BaTiO3/BiOBr Heterojunction: Mechanism Insights from Characterizations to DFT Calculations

“…These values are approximately 77 and 3 times higher than those over BTO (0.00024) and BiOBr (0.00635 min –1 ), respectively. Therefore, the piezo-photocatalytic synergy can effectively increase the degradation rate of RhB . In a binary heterojunction, the catalytic activity generally depends on the ratio of the two components.…”

“…Therefore, the piezo-photocatalytic synergy can effectively increase the degradation rate of RhB. 31 In a binary heterojunction, the catalytic activity generally depends on the ratio of the two components. An optimal ratio has been found in many heterojunctions for achieving the best catalytic activity.…”

“…29,30 Currently, the coupling of photocatalysts with piezoelectrics has aroused wide concern in the energy and environmental fields. 31,32 In such a combination, the local piezoelectric potential in the piezoelectrics can provide a driving force to separate the photogenerated e − −h + pairs in the photocatalyst, accordingly improving the photocatalytic performance for better degradation of organic pollutants. 32 For example, a polarized Bi 4 Ti 3 O 12 /BiOCl heterojunction exhibited 1.74-and 8.19-times higher degradation rates under piezo-photocatalysis than those under photocatalysis and piezoelectric catalysis, respectively.…”

In Situ Photodeposition of Gold Nanoparticles with Exposed High-Activity Crystal Facets under Different Sacrificial Agents

“…Photodeposition is distinguished as an atom- and energy-efficient alternative method for integrating noble metal co-catalysts onto semiconductor surfaces. Despite historical challenges in achieving precise control over the properties of the deposited co-catalyst, photodeposition presents a promising way. − In the study conducted by Jiang et al, the photodeposition process involved introducing H 2 PtCl 6 in the presence of methanol, leading to the formation of well-dispersed metallic Pt nanoparticles on titania surfaces. This phenomenon is attributed to the capture of photogenerated holes by methanol, resulting in an excess of surface electrons available for the substrate-mediated transfer to Pt complexes.…”