Cao Youzhi, Jing Xinbo, Chen Yajuan, Kang Wenjie, Wang Shufen, Wang Wei
School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University Shihezi 832003 China
College of Sciences, Shihezi University Shihezi 832003 China.
RSC Adv. 2019 Jan 25;9(6):3396-3402. doi: 10.1039/c8ra09950b. eCollection 2019 Jan 22.
Designing a highly active and stable photocatalyst to directly solve environmental pollution is desirable for solar energy conversion. Herein, an effective strategy, hydrothermal-calcination, for synthesizing extremely active carbon nitride (salmon pink) from a low-cost precursor melamine, is reported. The salmon pink carbon nitride with tube-shaped structure significantly enhanced response to visible light, improved efficiency of charge separation and remarkably enhanced efficiency of methyl orange (MO) degradation than bulk g-CN (light orange). The M-10-200-24-600 composite possessed the most wonderful ability towards MO degradation irradiated by visible light, which could achieve a highest degradation efficiency of 84% within 120 min. Our findings may provide a promising and facile approach to highly efficient photocatalysis for solar-energy conversion.
设计一种高活性且稳定的光催化剂以直接解决环境污染问题，对于太阳能转换而言是很有必要的。在此，报道了一种有效的策略——水热煅烧法，该方法能够以低成本前驱体三聚氰胺合成具有极高活性的氮化碳（鲑鱼粉色）。具有管状结构的鲑鱼粉色氮化碳对可见光的响应显著增强，电荷分离效率提高，并且与块状g-CN（浅橙色）相比，甲基橙（MO）降解效率显著提高。M-10-200-24-600复合材料在可见光照射下对MO降解具有最为出色的能力，在120分钟内可实现高达84%的最高降解效率。我们的研究结果可能为太阳能转换的高效光催化提供一种有前景且简便的方法。
