Carbon-doped KTaO₃ was synthesized for the first time via a simple combination of hydrothermal and calcination processes with glucose as the carbon source. XRD and XPS characterizations proved the successful introduction of the carbon atoms into the KTaO₃ lattice. Photocatalytic test showed that the carbon-doped KTaO₃ presented excellent performance in photocatalytic H₂ generation under simulated sunlight illumination, mainly due to the enhanced separation of electron-hole pairs. The optimal sample presents a H₂ generation rate of 592 μmol g⁻¹ h⁻¹, which reaches 2.6 times that of pure KTaO₃.

中文翻译：

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碳掺杂KTaO _3的合成及其在光催化H ₂生成中的增强性能

通过将葡萄糖作为碳源的水热和煅烧工艺的简单组合，首次合成了掺碳的KTaO ₃。XRD和XPS表征证明了将碳原子成功引入KTaO ₃晶格中。光催化试验表明，掺杂碳的KTaO ₃在模拟的阳光照射下表现出优异的光催化H ₂生成性能，这主要是由于电子-空穴对的分离增强了。最佳样品的H ₂生成速率为592μmolg ^-1  h ^-1，是纯KTaO _3的2.6倍。