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磷掺杂氮化碳纳米管/氧化铈光催化高效产 H2O2和降解污染物

P-Doped Carbon Nitride Nanotube/Cerium Oxide Photocatalyzed H2O2 Production and Pollutant Degradation Efficiently

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【作者】 胡磊张耘钊张春李新刚

【Author】 HU Lei;ZHANG Yun-zhao;ZHANG Chun;LI Xin-gang;Lanzhou Jiaotong University School of Chemistry and Chemical Engineering;

【通讯作者】 张春;李新刚;

【机构】 兰州交通大学化学化工学院

【摘要】 在本工作中,我们通过分子自组装成功制备了磷掺杂g-C3N4空心管(P-CNT),然后在P-CNT表面平行原位生长CeO2量子点,构建了0D/1D界面相。在可见光照射下,稳定的P-CNT/CeO2异质结构与单组分和单掺杂复合材料相比,有优异的H2O2的产量以及四环素降解方面有显著改善。这种增强的光催化性能源于P掺杂和异质结界面接触的协同效应。掺杂形成的管状结构不仅缩小了带隙,从而增强了CNT的可见光收集能力,而且促进了电子在一维纵向和径向方向上的传播。

【Abstract】 In this work, we successfully fabricated phosphorus doped g-C3N4 hollow tubes(P-CNT) via molecular self-assembly, and then grow theCeO2 quantum dots in situ parallel on the surface of P-CNT to construct 0D/1D interfacial phase. Under visible light irradiation, stable P-CNT/CeO2 heterostructures had higher H2O2 production and significantly improved tetracycline degradation compared with single-component and single-doped composites. This enhanced photocatalytic performance originates from the synergistic effect of P doping and heterojunction interfacial contact. The tubular structure formed by co-doping not only narrows the band gap, thereby enhancing the visible light collection capability of CN, but also promotes electron propagation along one-dimensional longitudinal and radial directions.

【关键词】 光催化P-CNT/CeO2污染物去除H2O2
【Key words】 photocatalysisP-CNT/CeO2pollutant removalH2O2
【基金】 甘肃省科技专员专项(No.22CX8GA062);甘肃省重点研发(No.21YF5GA054)
  • 【文献出处】 广州化工 ,Guangzhou Chemical Industry , 编辑部邮箱 ,2024年06期
  • 【分类号】O643.36;O644.1;TQ123.6;X703
  • 【下载频次】22
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