Abstract In this work, a novel, simple, economical and green carbon quantum dots (CQDs) were obtained by hydrothermal method using bamboo as a carbon source at the first time. In order to further the use of such CQDs, we reported the facile fabrication of CQDs/Bi3Ti4O12 (BTO) nanosheets photocatalysts. The experimental results indicated that CQDs were successfully coupled with BTO nanosheets, exhibiting excellent photocatalytic activity than bare BTO. The improved photodegradation efficiency was attributed to the extended light absorption range, and increased separation rate of electron-holes pairs. At last, a possible photocatalytic mechanism was proposed. The design of such CQDs from the creature with semiconductor can be extended to photocatalytic systems.

中文翻译：

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竹子制备的碳量子点（CQDs）用于增强 Bi 3 Ti 4 O 12 纳米片的光催化活性

摘要 本工作首次以竹子为碳源，通过水热法获得了一种新颖、简单、经济、绿色的碳量子点(CQDs)。为了进一步使用此类 CQD，我们报道了 CQD/Bi3Ti4O12 (BTO) 纳米片光催化剂的简便制造。实验结果表明，CQDs与BTO纳米片成功偶联，表现出比裸BTO优异的光催化活性。光降解效率的提高归因于光吸收范围的扩大和电子-空穴对分离率的提高。最后提出了一种可能的光催化机理。来自具有半导体的生物的此类 CQD 的设计可以扩展到光催化系统。