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首页> 外文期刊>RSC Advances >A facile approach to synthesizing S-Co-O tridoped g-C3N4 with enhanced oxygen-free photocatalytic performance via a hydrothermal post-treatment
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A facile approach to synthesizing S-Co-O tridoped g-C3N4 with enhanced oxygen-free photocatalytic performance via a hydrothermal post-treatment

机译：通过水热后处理合成具有增强的无氧光催化性能的S-Co-O三掺杂g-C3N4的简便方法

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摘要

Extending the application of photocatalytic oxidation technology to the anoxic removal of organic pollutants that exist under some oxygen-free conditions is attractive but challenging. In this study, S-Co-O tridoped g-C3N4 nanorods with outstanding visible light activity under anoxic conditions are synthesized via hydrothermal post-treatment. S and Co doping inhibits the crystal growth of graphitic carbon nitride, enhances the S-BET, decreases the band gap energy and increases the separation efficiency of photogenerated electrons and holes, which increases the anoxic photocatalytic RhB degradation constants by approximately 4.5 times. After hydrothermal treatment, oxygen doping not only increases the adsorption ability of graphitic carbon nitride but also captures photogenerated electrons to produce photogenerated holes for RhB degradation under anoxic conditions, leading to a tripling of the RhB degradation constant. This study provides new insight into the design and fabrication of oxygen-free photocatalysts.
机译：将光催化氧化技术的应用扩展到在一些无氧条件下存在的有机污染物的缺氧去除是有吸引力的，但是具有挑战性。在这项研究中，通过水热后处理合成了在缺氧条件下具有出色可见光活性的S-Co-O三掺杂g-C3N4纳米棒。 S和Co的掺杂会抑制石墨碳氮化物的晶体生长，提高S-BET，降低带隙能并提高光生电子和空穴的分离效率，从而使缺氧光催化RhB降解常数增加约4.5倍。经过水热处理后，氧掺杂不仅增加了石墨碳氮化物的吸附能力，而且还捕获了光生电子，从而在缺氧条件下降解RhB产生光生空穴，从而使RhB降解常数增加了三倍。这项研究为无氧光催化剂的设计和制造提供了新的见识。

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