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Updated: Jul 15, 2025

Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods
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Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods

Published on: February 11, 2016

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探索CO2光催化演变到CuO (1 1 0) 表面:一项结合理论和实验研究

O Castro-Ocampo1, J C Ochoa-Jaimes1, Christian A Celaya2

  • 1Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Priv. Xochicalco s/n, Col. Centro, Temixco, Morelos, CP 62580, Mexico.

Heliyon
|September 28, 2023
PubMed
概括

这项研究探讨了矿 (CuO) 的二氧化碳 (CO2) 转化,揭示了其光催化潜力. 密度函数理论和实验表明,带间隙有望提高二氧化碳转化为有价值的中间体.

关键词:
二氧化碳的转化过程密度函数理论密度函数理论光催化作用的光催化太阳能燃料是太阳能燃料中的一种.

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A Complete Method for Evaluating the Performance of Photocatalysts for the Degradation of Antibiotics in Environmental Remediation08:30

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Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
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Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
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The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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