Mechanically exfoliated g-C3N4 thin nanosheets by ball milling as high performance photocatalysts

Mechanically exfoliated g-C3N4 thin nanosheets by ball milling as high performance photocatalysts
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通过球磨机械剥离 g-C3N4 薄纳米片作为高性能光催化剂

DOI:
10.1039/c5ra09040g
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发表时间:
2015-06
期刊:
影响因子:
3.9
通讯作者:
Li Zhenjiang
Li Zhenjiang
中科院分区:
化学3区
文献类型:
--
作者:
Zhu Kaixing;Wang Wenjun;Meng Alan;Zhao Meng;Wang Junhu;Zhao Mei;Zhang Dongliang;Jia Yuping;Xu Chunhua;Li Zhenjiang

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具有层状结构的g-C3 N4由于其合适的带隙、丰富的构建元素和优异的化学稳定性而被证明是一种优秀的无金属有机光催化剂。在这里,一个简单的一步球磨方法是第一次在大规模的机械剥离的g-C3 N4(MECN)薄纳米片的合成。表征结果表明,随着研磨时间的增加,样品的尺寸逐渐减小,并伴随着带隙吸收的不断变化。所得到的MECN薄纳米片显示出显着增强的模拟太阳光驱动的光催化活性对有机降解相比,他们的散装对应物,突出的形态和表面积的光催化性能的关键作用。
g-C3N4 with a layered structure has been proven as an outstanding metal-free organic photocatalyst because of its appropriate bandgap, abundant building elements, and excellent chemical stability. Here, a simple one-step ball milling method is presented for synthesis of mechanically exfoliated g-C3N4 (MECN) thin nanosheets at large scales for the first time. Characterization results showed that gradual size reduction, accompanied by a continual bandgap absorption shift, occurred with increasing grinding time. The obtained MECN thin nanosheets showed significantly enhanced simulated sun light driven photocatalytic activity toward organic degradation compared to their bulk counterpart, highlighting the crucial role of morphology and surface area on the photocatalytic performance.
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影响因子: 5.5
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