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首页> 外文会议>DAE Solid State Physics Symposium >Synthesis of metal free ultrathin graphitic carbon nitride sheet for photocatalytic dye degradation of Rhodamine B under visible light irradiation
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Synthesis of metal free ultrathin graphitic carbon nitride sheet for photocatalytic dye degradation of Rhodamine B under visible light irradiation

机译：可见光照射下罗丹明B光催化染料脱霉素染料的无金属超薄石墨氮化物片的合成

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摘要

In recent times, low cost and metal free photocatalyts driven under visible light have attracted a lot of interest. One such photo catalyst researched extensively is bulk graphitic carbon nitride sheets. But the low surface area and weak mobility of photo generated electrons limits its photocatalytic performance in the visible light spectrum. Here we present the facile synthesis of ultrathin graphitic carbon nitride using a cost effective melamine precursor and its application in highly efficient photocatalytic dye degradation of Rhodamine B molecules. Compared to bulk graphitic carbon nitride, the synthesized ultrathin graphitic carbon nitride shows an increase in surface area, a a decrease in optical band gap and effective photogenerated charge separation which facilitates the harvest of visible light irradiation. Due to these optimal properties of ultrathin graphitic carbon nitride, it shows excellent photocatalytic activity with photocatalytic degradation of about 95% rhodamine B molecules in 1 hour.
机译：最近，在可见光下驱动的低成本和金属无金属光催化吸引了很多兴趣。广泛研究的一种这样的光催化剂是散装石墨碳氮化物片。但是，光生成的电子的低表面积和弱迁移率限制了其光催化性能在可见光光谱中。在这里，我们在高效的光催化染料降解罗丹明B分子的高效光催化染料中，介绍了超薄石墨碳氮化物的容易合成。与散装石墨氮化碳相比，合成的超薄石墨碳氮化物显示出表面积的增加，光带隙的减小和有效的光生电电荷分离，其促进了可见光照射的收获。由于超薄石墨碳氮化物的这些最佳性能，它显示出优异的光催化活性，光催化活性在1小时内具有约95％罗丹明B分子的光催化降解。

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