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首页> 外文期刊>RSC Advances >Glucosamine-induced growth of highly distributed TiO2 nanoparticles on graphene nanosheets as high-performance photocatalysts
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Glucosamine-induced growth of highly distributed TiO2 nanoparticles on graphene nanosheets as high-performance photocatalysts

机译：氨基葡萄糖诱导的石墨烯纳米粒子的高度分布式TiO2纳米粒子的生长，如高性能光催化剂

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摘要

Here, a composite composed of ultrasmall TiO _(2) nanoparticles and reduced graphene nanosheets (RGO) has been intelligently designed by a facile glucosamine-assisted hydrothermal strategy in alkaline conditions. The experimental results indicate that the induction of glucosamine plays a vital role in the formation of the desirable TiO _(2) @graphene products, which can effectively regulate the growth and dispersity of TiO _(2) nanoparticles on the graphene backbone. Consequently, highly dispersed TiO _(2) nanoparticles with an average diameter of about 13 nm are firmly anchored on graphene. Importantly, the achieved products possess a large surface area of 238.0 m ~(2) g ~(?1) , good thermal stability, and high crystallinity along with the increase of calcination temperatures. In particular, the TiO _(2) @graphene obtained through thermal treatment at 700 °C exhibits better photocatalytic activity for photodegradation of methyl orange (MO) than those produced at other calcination temperatures, and it also has a good photocatalytic ability for degrading rhodamine B (RhB) and methyl blue (MB).
机译：这里，由超氨基醛α（2）纳米颗粒组成的复合材料并减少石墨烯纳米片（RGO）被碱性条件的容易葡萄糖胺辅助水热策略智能地设计。实验结果表明，葡糖胺的诱导在形成所需的TiO _（2）兆产物的形成中起重要作用，这可以有效地调节TiO _（2）纳米颗粒在石墨烯骨架上的生长和分散性。因此，具有平均直径约13nm的高度分散的TiO _（2）纳米颗粒在石墨烯上牢固地固定。重要的是，随着煅烧温度的增加，所达到的产品具有238.0m〜（2）G〜（2）G〜（α1），良好的热稳定性和高结晶度。特别地，通过在700℃的热处理获得的TiO _（2）@Graphene能够比在其他煅烧温度下产生的甲基橙（Mo）的光催化活性表现出更好的光催化活性，并且还具有良好的光催化能力，可降低罗丹明B（RHB）和甲基蓝（MB）。

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