Fluorescent methylammonium lead halide perovskite quantum dots as a sensing material for the detection of polar organochlorine pesticide residues
Yayu YangCollege of Food Engineering and BiotechnologyAiling HanCollege of Food Engineering and BiotechnologySijia HaoCollege of Food Engineering and BiotechnologyXia LiCollege of Food Engineering and BiotechnologyXiaoyu LuoCollege of Food Engineering and BiotechnologyGuozhen FangCollege of Food Engineering and BiotechnologyJifeng LiuCollege of Food Engineering and BiotechnologyShuo WangCollege of Food Engineering and Biotechnology
2020en
ABI
Аннотация
H NMR, FTIR, XPS and XRD were performed first to illustrate the sensing mechanism. In the presence of polar OCPs, the MAPB-QDs' capping ligands, oleic acid (OA) and oleylamine (OAm), were replaced with OCPs and then the chlorine element was adequately doped into QDs, resulting in the increase of the MAPB-QDs' bandgap. As result of the insufficient stability of MAPB-QDs in the presence of moisture, MAPB-QDs were mixed with PDMS and used as the colorimetric cards for fast detection of OCPs in real samples.
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