In this work, a new type of ratiometric fluorescent nanoprobe with dual-emission properties is designed and constructed. The dual-emission nanoprobe is prepared from fluorescent silicon nanoparticles (Si NPs) and carbon...
The novel water dispersible SiNPs which were prepared by a one-step hydrothermal method were applied to the detection of Cr2O72−via internal filtering effect (IFE) and a fluorescent paper sensor for visual detection of Cr2O72− was developed.