https://novaprd-lb.newcastle.edu.au/vital/access/manager/Index en-au 5 https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:42056 Wed 17 Aug 2022 14:33:19 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:42054 Wed 17 Aug 2022 14:26:20 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:36650 Tue 23 Jun 2020 14:49:43 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:46819 2⁻), hydrogen peroxide (H₂O₂), and hydroxyl radicals (•OH) via oxygen reduction reaction (ORR), by using Bi₄NbO₈X (X = Cl, Br) single crystalline nanoplates. Significantly, the piezo-photocatalytic process leads to the highest ORR performance of the Bi₄NbO₈Br nanoplates, exhibiting •O₂⁻, H₂O₂, and •OH evolution rates of 98.7, 792, and 33.2 µmol g⁻¹ h⁻¹, respectively. The formation of a polarized electric field and band bending allows directional separation of charge carriers, promoting the catalytic activity. Furthermore, the reductive active sites are found enriched on all the facets in the piezo–photocatalytic process, also contributing to the ORR. By piezo–photodeposition of Pt to artificially plant reductive reactive sites, the Bi₄NbO₈Br plates demonstrate largely enhanced photocatalytic H2 production activity with a rate of 203.7 µmol g⁻¹ h⁻¹. The present work advances piezo–photocatalysis as a new route for ROS generation, but also discloses the potential of piezo–photocatalytic active sites enriching for H₂ evolution.]]> Thu 01 Dec 2022 10:40:44 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:25211 Sat 24 Mar 2018 07:14:02 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:50602 Mon 31 Jul 2023 11:47:31 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:46331 Mon 29 Jan 2024 18:37:54 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:40091 2 photoreduction by coupling macroscopic spontaneous polarization and surface oxygen vacancies (OVs) of BiOIO₃ single crystals is reported. The oriented growth of BiOIO₃ single-crystal nanostrips along the [001] direction, ensuing substantial well-aligned IO₃ polar units, renders a large enhancement for the macroscopic polarization electric field, which is capable of driving the rapid separation and migration of charges from bulk to surface. Meanwhile the introduction of surface OVs establishes a local electric field for charge migration to catalytic sites on the surface of BiOIO₃ nanostrips. Highly polarized BiOIO₃ nanostrips with ample OVs demonstrate outstanding CO₂ reduction activity for CO production with a rate of 17.33 μmol g^-1 h^-1 (approximately ten times enhancement) without any sacrificial agents or cocatalysts, being one of the best CO₂ reduction photocatalysts in the gas-solid system reported so far. This work provides an integrated solution to governing charge movement behavior on the basis of collaborative polarization from bulk and surface.]]> Fri 22 Jul 2022 13:41:21 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:41820 Fri 12 Aug 2022 12:52:30 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:46147 Fri 11 Nov 2022 18:30:55 AEDT ]]>