Novel carbon quantum dots (CQDs) modified BiVO4 (CQDs/BiVO4) photocatalysts is prepared via a facile hydrothermal process. The CQDs/BiVO4 is characterized by XRD, TEM, PL and DRS etc. CQDs, which is about 2 nm in size with excellent up-conversion ability, is successfully loaded on the surface of BiVO4 particles. The photocatalytic activity of as-prepared CQDs/BiVO4 is investigated by the degradation of RhB. The degradation rate with CQDs/BiVO4 is 1.68 times as much as that with BiVO4 particles when the quantity ratio of CQDs to CQDs/ BiVO4 is 2 wt%. This improvement is attributed to the crucial role of CQDs, which has excellent up-conversion ability to extend the absorption spectrum of photocatalysts, and which can be an electron reservoir to trap electrons to promote the separation of photogenerated holes and electrons.

Facile fabrication of carbon quantum dots (CQDs) loaded BiVO4 with up-conversion ability for efficient photocatalytic performance

254th National Meeting (2017)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.