Preparation of Oil Fume Ink with Specific Optical Properties by Adjusting thePrecursor
LIN Qing1,2, LI Lingling1,2, CHEN Wenyuan1,2, ZHANG Shuang1,2, WANG Wei1,2, ZHANG Xiaojuan1,2,HAO Lingyun1,2
1 School of Materials Engineering, Jinling Institute of Technology, Nanjing 211169; 2 Nanjing Key Laboratory of Optometric Materials and Technology, Jinling Institute of Technology, Nanjing 211169
Abstract: The oil fume ash with specific optical properties was successfully prepared by adjusting the raw material contents of the traditional ash-making precursor. The structure, morphology and optical properties of the oil fume ash were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible absorption spectroscopy (UV-Vis), infrared spectroscopy (FTIR) and fluorescence spectroscopy (PL). The results indicated that there was no significant difference between the ash prepared by the combustion of oil mixed with tetrabutyl titanate (Ti-ash) and the ordinary ash in their appearances and microscopics, and both ashes were nanoscale amorphous carbon. The specific surface area of Ti-ash was about 83.7 m2/g, and its grain size was about 20 nm. Ti-ash was negatively charged in aqueous solution and the zeta potential was about -18.7 mV. However, FTIR spectrum indicated that there was a characteristic absorption peak at 608 cm-1 for Ti-ash, and the PL spectrum suggested a characteristic luminescence peak at 480 nm. It indicated that adjusting precursor preparation of oil fume ash can endow specific optical properties to oil fume ash, and realized non-destructive testing. Non-destructive testing can be used not only in modern art creation, but also in anti-counterfeiting, repairing and testing processes. Adjusting the raw material contents of the traditional ink-making precursor enlarged the application field of ink and had potential artistic and cultural value.
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