tailieunhanh - Tunable surface adsorption and wettability of candle soot coated on ferroelectric ceramics

A ferroelectric (BCZTO) ceramic was prepared using a solid-state reaction route. A coating of candle soot was provided on poled and unpoled BCZTO samples. X-ray diffraction and Raman spectroscopy confirmed the presence of the graphite form of carbon in the candle soot. Scanning Kelvin probe microscopy determined that the highest surface potentials were 34 mV and V in the unpoled and poled BCZTO samples, respectively. The candle soot was found to adsorb 65%, 80%, and 90% of the methylene blue dye present in acidic, neutral, and basic media, respectively, within 3 h. In both the poled and unpoled cases, the BCZTO samples coated with candle soot showed greater adsorption capacities than the uncoated BCZTO sample. In the cases of poled samples coated with candle soot, the adsorption was found to be greater in the case of candle soot coated on a positively charged surface than that for candle soot coated on a negatively charged BCZTO surface in an acidic medium. In a basic medium, the adsorption was found to be greater in the case of candle soot coated on a negatively charged surface than that for candle soot coated on a positively charged BCZTO surface. The contact angle of the candle soot-coated BCZTO sample was found to be hydrophobic (149 ). | Tunable surface adsorption and wettability of candle soot coated on ferroelectric ceramics

• Vật lý
• Candle soot
• Tunable surface adsorption
• Wettability of candle soot coated
• Ferroelectric ceramics
• Carbon in the candle soot