Preparation of CdTe Nanoparticles and Electron Transfer Mechanism with GSH

Abstract

Abstract: CdTe nanoparticles were prepared by co-precipitation reduction method with CdCl₂·2.5H₂O as cadmium source, TeO₂ as tellurium source and hydrazine hydrate as reducing agent. The morphology, structure and optical absorption properties of CdTe nanoparticles were characterized by scanning electron microscopy, X-ray diffractometer, Raman spectrometer, Fourier infrared spectrometer and solid ultraviolet-visible spectrometer. The results show that the CdTe prepared at water bath temperature of 80 ℃, water bath time of 6 h, sintering temperature of 400 ℃, sintering time of 2 h has high crystallinity and good light absorption. The fluorescence spectra show that the fluorescence intensity of CdTe solution increases with the increase of glutathione (GSH) concentration, and the detection limit (LOD) is 0.004 mmol/L in the range of 0.005~0.8 mmol/L. This study provides a new technology for the preparation of CdTe fluorescence detector and a theoretical basis for explaining the fluorescence response of GSH in CdTe solution.

Key words: co-precipitation reduction method, CdTe, electron transfer, fluorescence response, GSH, biofluorescence detector, photolectric material

CLC Number:

TQ132

LIN Yanhui, BIAN Liang, SONG Mianxin, DONG Faqin, CAO Qilong, LI Weimin, LI Hailong, LI Yu, LUO Weige, ZHANG Jinmei, ZHANG Qin, ZHANG Jiao, LUO Weihui, YANG Min. Preparation of CdTe Nanoparticles and Electron Transfer Mechanism with GSH[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(12): 4144-4150.

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