Sludges were used as substrate to prepared carbon quantum dots (CQDs).After high temperature carbonization of sludges,CQDs were prepared by HAc/H2O2 oxidation method.CQDs were characterized by photoluminescence spectra (PL) and UV-visible spectroscopy (UV-Vis).The results shown that the fluorescence intensity of CQDs was the highest with the excitation wavelength 320nm,reached 9999.It had UV-Vis spectrums at 320nm and 400nm,respectively.The fluorescence property of CQDs can rival that of traditional CQDs which prepared with graphite powder and carbon rods.The fourier transform infrared spectroscopy (FT-IR) results shown that there were some oxygen-containing functional groups on CQDs surface.That was conducive to the further functionalization of CQDs.This indicated that CQDs prepared with sludge had high application potential.It provided a new developing orientation on the resource utilization of sludge.
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基金资助
辽宁省教育厅高校基本科研项目(JQL201715403);工业生态与环境工程教育部重点实验室开放基金(KLIEEE-16-07)
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