Fabrication of carbon nitride nanotubes by a simple water-induced morphological transformation process and their efficient visible-light photocatalytic activity
Fabrication of carbon nitride nanotubes by a simple water-induced morphological transformation process and their efficient visible-light photocatalytic activity
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通过简单的水诱导形态转变过程制备氮化碳纳米管及其高效的可见光光催化活性
DOI：
10.1039/c4ra12740d
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发表时间：
2014
期刊：
影响因子：
3.9
通讯作者：
Guo Yihang
中科院分区：
文献类型：
--
作者：
Zeng Zhenxing;Li Kexin;Yan Liushui;Dai Yuhua;Guo Huiqin;Huo Mingxin;Guo Yihang
以石墨化碳氮化物(g-C3N4)为前驱体，通过简单的水诱导形态转变过程，基于纳米片材的卷曲机理合成了碳氮化碳纳米管(C3N4 NTS)。采用水作为相转移试剂，使制备过程对环境友好。与块体g-C3N4和g-C3N4纳米片相比，制备的C3N4纳米管对罗丹明B的降解和水分解放氢的可见光催化活性显著提高。这一结果可以归因于C3N4纳米管具有高的光生载流子转移效率、优异的传质能力、足够的活性中心和提高的光利用效率。
Carbon nitride nanotubes (C3N4 NTs) were synthesized based on the nanosheets roll-up mechanism by a simple water-induced morphological transformation process using graphitic carbon nitride (g-C3N4) as a precursor. Water was used as the phase-transfer reagent, making the preparation process environmentally friendly. The visible-light photocatalytic activity of the as-prepared C3N4 NTs significantly increased compared to bulk g-C3N4 and g-C3N4 nanosheets toward rhodamine B degradation and hydrogen evolution from water-splitting. This result can be attributed to the high photogenerated carrier transfer efficiency, excellent mass transfer capability, sufficient active sites, and enhanced light utilization efficiency of C3N4 NTs.