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首页> 外文期刊>RSC Advances >Synthesis of core–shell structured Ag3PO4@benzoxazine soft gel nanocomposites and their photocatalytic performance
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Synthesis of core–shell structured Ag3PO4@benzoxazine soft gel nanocomposites and their photocatalytic performance

机译：合成核 - 壳结构Ag3PO4的苯并嗪软凝胶纳米复合材料及其光催化性能

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In the investigation of photocatalysis, it remains a significant challenge to improve the interface properties and enhance the stability of photocatalysts. To address this challenge, we have prepared core–shell structured Ag _(3) PO _(4) @benzoxazine soft gel nanocomposites, in which Ag _(3) PO _(4) nanoparticles are coated with uniform benzoxazine monomers via a facile solution self-assembly method. The benzoxazine monomers are attached to the surface of Ag _(3) PO _(4) nanoparticles by coordination interaction between the amino group of the benzoxazine monomers and Ag ~(+) ions on the surface of Ag _(3) PO _(4) , and the soft gel shell is formed via the interaction of hydrogen bonds between the benzoxazine monomers. The nanocomposites exhibit higher visible-light photocatalytic stability than the bare Ag _(3) PO _(4) nanoparticles under the same reaction conditions. Both experimental evidence and electrochemical calculations reveal that the high photocatalytic stability of Ag _(3) PO _(4) @benzoxazine soft gel nanocomposites mainly originates from the silver amine complex ion formed in the interface between the core and the shell. The integration of photocatalysts with the advantages of soft gels can provide a new way to improve the interface properties of Ag _(3) PO _(4) catalyst and facilitate the realization of the long-standing goal of performing chemical synthesis using sunlight.
机译：在对光催化的调查中，改善界面性能并增强光催化剂的稳定性仍然是一个重大挑战。为了解决这一挑战，我们已经制备了核心壳结构Ag _（3）PO _（4）@BenzoOxazine软凝胶纳米复合材料，其中Ag _（3）PO _（4）纳米颗粒通过容易涂覆均匀的苯并恶嗪单体涂覆解决方案自组装方法。通过苯并恶嗪单体的氨基与Ag _（3）Po _（3）PO _（3）PO _（4）的表面的氨基之间的配位相互作用，将苯并恶嗪单体连接到Ag _（3）PO _（4）纳米颗粒的表面上。（如图4所示，通过苯并嗪单体之间的氢键相互作用形成软凝胶壳。在相同的反应条件下，纳米复合材料表现出比裸脂_（3）PO _（4）纳米颗粒更高的可见光光催化稳定性。实验证据和电化学计算揭示了Ag _（3）PO _（4）的高光催化稳定性，@benzoOxazine软凝胶纳米复合材料主要来自在芯和壳之间形成的界面中形成的银胺复合离子。光催化剂与软凝胶的优点的整合可以提供一种改善Ag _（3）PO _（4）催化剂的界面特性的新方法，并促进使用阳光进行化学合成的长期目标。

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