Abstract This paper presents a novel application of microwave-assisted heating approach in the preparation of hexagonal phase boron nitride (h-BN). Results reported that h-BN was successfully synthesized in 50 min with boric acid and urea as raw materials. The as-synthesized h-BN presents a richer defect structure than the sample prepared at 900 °C in a nitrogen atmosphere (BN-900). The improved photoabsorption performance and the charge separation efficiency are thus obtained, which results in a much better performance than BN-900 and commercial BN in photocatalytic H2 evolution.

中文翻译：

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微波加热法简便快速制备六方氮化硼及其在光催化析氢中的应用

摘要 本文介绍了微波辅助加热方法在六方相氮化硼（h-BN）制备中的新应用。结果表明，以硼酸和尿素为原料，在50 min内成功合成了h-BN。合成的 h-BN 具有比在 900 °C 下在氮气氛中制备的样品 (BN-900) 更丰富的缺陷结构。因此获得了改进的光吸收性能和电荷分离效率，这导致在光催化析氢方面比 BN-900 和商业 BN 更好的性能。