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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >The novel synthesis of a continuous tube with laminated g-C3N4 nanosheets for enhancing photocatalytic activity and oxygen evolution reaction performance
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The novel synthesis of a continuous tube with laminated g-C3N4 nanosheets for enhancing photocatalytic activity and oxygen evolution reaction performance

机译：具有层压G-C3N4纳米片的连续管的新型合成，用于增强光催化活性和氧气进化反应性能

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摘要

Novel tubular graphitic carbon nitride has been successfully prepared via electrospinning technology, high temperature calcination technology, a vapor deposition reaction method and the method of acid removal, and in this process, Al2O3 fibers used as a template can help achieve the controllable preparation of GCNTs. Structural characterization results reveal that the as-prepared sample has the same composition as bulk graphitic carbon nitride and verify the well-defined tubular morphology of the graphitic carbon nitride tubes, which have a diameter of about 270 nm and a wall thickness of 30 nm. With regard to the photocatalytic activity of the sample, the degradation of organic dyes under visible light irradiation was carried out and cycling experiments were conducted, and the results indicated that the prepared sample has visible light catalytic activity and great stability. The specific tubular structure of graphitic carbon nitride will provide more active sites and higher reaction efficiency with potential application to waste treatment. When applied as an electrocatalyst in the oxygen evolution reaction (OER), GCNTs deliver a current density of 10 mA cm(-2) at an overpotential of 360 mV with a Tafel slope of only 40 mV dec(-1), and demonstrate excellent long term durability.
机译：通过静电纺丝技术，高温煅烧技术，气相沉积反应方法和酸移除方法成功制备了新型管状石墨碳碳氮化物，并且在该过程中，用作模板的Al2O3纤维可以帮助实现GCNT的可控制剂。结构表征结果表明，制备的样品具有与块状石墨氮化物相同的组成，并验证石墨碳氮化物管的明确定义的管状形态，其具有约270nm的直径和30nm的壁厚。关于样品的光催化活性，进行可见光照射下有机染料的降解，进行循环实验，结果表明制备的样品具有可见光催化活性和稳定性。石墨碳氮化物的特定管状结构将提供更多的活性位点和更高的反应效率，潜在的应用施加废物处理。当在氧进化反应（OER）中作为电催化剂施用时，GCNT在360 mV的过电位下提供10 mA cm（-2）的电流密度，其特点为40 mV（-1），并展示优异长期耐用性。

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