Environmentally friendly photodegradation of refractory pollutants utilizing semiconductor photocatalysis evolution exhibits satisfactory efficiency and low energy consumption, but some of its unbefitting band position largely limits practical applications. The controllable band structure tuning via coupling low-dimensional materials with enormous potential in semiconductor photocatalysis, notably attractive carbon quantum dots (CQDs) induced for a better utilization of low-energy photoexcitation of promising inherent optical properties and photocatalytic performance on organic pollutant degradation. Here, a CQDs modified ZnO hybrid materials was synthesized and the CQDs preluded carbon-incorporated burger-like ZnO nanoparticles clusters were presented thus demonstrated a specific doping-effect. The dispersity improved by loading halloysite nanotube (HNTs) for efficiently photocatalytic activity enhancement. Furthermore, the band structure, excitation and photocatalytic reactive oxygen species (ROS) generation were detected to reveal the photochemical properties and plausible mechanism of CQDs hybrid nanomaterials system. It is observed that the superoxide radical (O₂⁻), and singlet oxygen(¹O₂) are the principal ROS agents under UV–vis excitations. This work not only displays a CQDs modified system of expanding photo-response range to visible light but also throws a way for quantum elemental incorporated on the influence of band-tuning for semiconductor- dominated photocatalysts.

利用半导体光催化的发展，对耐火污染物进行环境友好的光降解表现出令人满意的效率和低能耗，但是其某些不合适的谱带位置极大地限制了实际应用。通过耦合在半导体光催化中具有巨大潜力的低维材料，尤其是诱人的吸引人的碳量子点（CQDs），可控的能带结构调谐，这些碳量子点（CQDs）可以更好地利用低能光激发，并具有良好的固有光学性质和对有机污染物降解的光催化性能。在这里，合成了CQDs改性的ZnO杂化材料，并提出了以碳掺入的汉堡状ZnO纳米颗粒簇为先驱的CQDs，从而证明了特定的掺杂效果。通过装载埃洛石纳米管（HNT）可以有效提高光催化活性，从而提高分散性。此外，检测了能带结构，激发和光催化活性氧（ROS）的生成，揭示了CQDs杂化纳米材料系统的光化学性质和可能的机理。观察到超氧自由基（O₂ ^- ），和单线态氧（¹ Ò ₂）是在UV-VIS激励主ROS试剂。这项工作不仅展示了将光响应范围扩展到可见光的CQDs改进系统，而且还为掺入量子元素的方法提供了一种方法，该方法结合了能带调谐对半导体为主的光催化剂的影响。