https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:49628 Wed 24 May 2023 13:32:39 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:38378 2O₂) production has attracted considerable attention as a renewable and environment-friendly method to replace other traditional production techniques. The performance of H₂O₂ production remains limited by the inertness of graphitic carbon nitride (CN) towards the adsorption and activation of O₂. In this work, a photocatalyst comprising of β-cyclodextrin (ß-CD)-modified CN with supporting Au co-catalyst (Au/β-CD-CN) has been utilized for effective H₂O₂ production under visible light irradiation. The static contact angle measurement suggested that β-CD modification increased the hydrophobicity of the CN photocatalyst as well as its affinity to oxygen gas, leading to an increase in H₂O₂ production. The rate of H₂O₂ production reached more than 0.1 mM/h under visible-light irradiation. The electron spin resonance spectra indicated that H₂O₂ was directly formed via a 2-electron oxygen reduction reaction (ORR) over the Au/β-CD-CN photocatalyst.]]> Thu 02 Sep 2021 12:42:32 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:55779 Sat 22 Jun 2024 12:39:49 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:39604 3N₄ phase, which is incorrect. This perspective discourses the various identified polymeric forms of CN, their molecular structure, synthesis, photophysical properties, and their applications. The article attempts to simplify the conjectures in CN terminology and discuss future perspectives, challenges, and opportunities in the developing field of CN chemistry.]]> Mon 29 Jan 2024 18:51:56 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:52932 Mon 29 Jan 2024 18:24:09 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46662 3N₄) has attracted much attention due to its unique properties and excellent performance in the field of sensors, which has inspired the authors to compile this review. Although there are many reviews on the synthesis and applications of g‐C₃N₄ materials, a targeted, systematic, comprehensive summary of applications in sensors and the sensing mechanisms of g‐C₃N₄‐based nanomaterials are not published. In this review, the preparation methods and synthetic conditions for preparing g‐C₃N₄ with different morphologies, such as conventional bulk g‐C₃N₄, g‐C₃N₄ nanosheets, and g‐C₃N₄ quantum dots, are introduced in detail. By reviewing recent advances in g‐C₃N₄‐based nanomaterials in ion sensors, biosensors, gas sensors, and humidity sensors, this study provides more comprehensive and in‐depth information for the further design of g‐C₃N₄‐based sensors with enhanced performance. A brief outlook of g‐C3N4‐based sensors is presented as the conclusion of this review.]]> Mon 28 Nov 2022 18:25:37 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40038 3N₄) has received extensive attention due to its high stability, nontoxicity, facile and low-cost synthesis, appropriate band gap in the visible spectral range and wide availability of resources. The dimensions of g-C₃N₄ can influence the regime of the confinement of electrons, and consequently, g-C₃N₄ with various dimensionalities shows different properties, making them available for many stimulating applications. Although there are some reviews focusing on the synthesis strategy and applications of g-C₃N₄, there is still a lack of comprehensive review that systemically summarises the synthesis and application of different dimensions of g-C₃N₄, which can provide an important theoretical and practical basis for the development of g-C₃N₄ with different dimensionalities and maximises their potential in diverse applications. By reviewing the latest progress of g-C₃N₄ studies, we aim to summarise the preparation of g-C₃N₄ with different dimensionalities using various structural engineering strategies, discuss the fundamental bottlenecks of currently existing methods and their solution strategies, and explore their applications in energy and environmental applications. Furthermore, it also puts forward the views on the future research direction of these unique materials.]]> Mon 04 Jul 2022 12:03:41 AEST ]]>