Enhancing Visible-Light Photodegradation of TC-HCl by Doping Phosphorus into Self-Sensitized Carbon Nitride Microspheres

文献类型： 外文期刊

第一作者： Chen, Xiangyu

作者： Chen, Xiangyu;Yang, Xiuru;Wu, Jianhao;Chen, Zhi;Li, Lan;Gao, Jingyang;Chen, Jinchao;Hu, Jinglei;Li, Chunyan;Wang, Wen

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关键词： carbon nitride microsphere; phosphorus doping; self-sensitization; antibiotic residue disposal

期刊名称：PROCESSES （ 影响因子：3.5； 五年影响因子：3.4 ）

ISSN：

年卷期： 2023 年 11 卷 2 期

页码：

收录情况： SCI

摘要： SSCN is a new type of self-sensitive photocatalyst. It consists of oxygenated carbon nitride-containing microspheres inside and polymerized triazine dye (TBO) formed on its surface by in situ polymerization. The presence of TBO endows SSCN with a wide range of optical responses. However, the TBO would self-degrade under light, making SSCN extremely unstable in photocatalytic reactions and limiting the practical application of SSCN. The introduction of phosphorus into the structure of SSCN significantly improved the electron-hole separation efficiency and reduced the self-degradation of surface TBO. Phosphorus-doped self-sensitive carbon nitride microspheres (P-SSCN) are easily synthesized by a one-pot solvothermal method-the phosphorus source was added to the precursor solution of SSCN. This resulting material was used for the photodegradation of tetracycline hydrochloride (TC-HCl) for the first time, giving improved visible light sensitivity and high stability in the photocatalytic process. This provides a new method for modifying self-sensitive carbon nitride carbon.

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