三聚氰胺
三聚氰酸
可见光谱
材料科学
光催化
罗丹明B
煅烧
水热合成
催化作用
纤锌矿晶体结构
化学工程
光降解
植酸
光化学
热液循环
纳米技术
化学
光电子学
有机化学
锌
复合材料
生物化学
工程类
冶金
作者
Zongyang Ya,Xinyu Jiang,Peng Wang,Jingjin Cai,Qiyou Wang,Haijiao Xie,Shanglin Xiang,Tingwei Wang,Dongyu Cai
出处
期刊:Small
[Wiley]
日期:2023-03-08
卷期号:19 (23)
被引量:14
标识
DOI:10.1002/smll.202208254
摘要
Abstract This work reports a new form of tubular g‐C 3 N 4 that is featured with a hierarchical core–shell structure introduced with phosphorous elements and nitrogen vacancies. The core is self‐arranged with randomly stacked g‐C 3 N 4 ultra‐thin nanosheets along the axial direction. This unique structure significantly benefits electron/hole separation and visible‐light harvesting. A superior performance for the photodegradation of rhodamine B and tetracycline hydrochloride is demonstrated under low intensity visible light. This photocatalyst also exhibits an excellent hydrogen evolution rate (3631 µmol h −1 g −1 ) under visible light. Realizing this structure just requires the introduction of phytic acid into the solution of melamine and urea during hydrothermal treatment. In this complex system, phytic acid plays as the electron donor to stabilize melamine/cyanuric acid precursor via coordination interaction. Calcination at 550 °C directly renders the transformation of precursor into such hierarchical structure. This process is facile and shows the strong potential toward mass production for real applications.
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