Theoretical analysis for photophoresis of a microscale hydrophobic particle in liquids

摘要: In the present study, combining conventional photothermal analysis and concept of interaction solvent molecules in interfacial layer used for thermophoresis liquid, a theory photophoresis hydrophobic particle suspended liquids is developed. To characterize hydrophobicity micro-particle, slip length Navier’s formula as an index. Analytical expressions are derived parametric photophoretic velocity performed with emphasis on influences characteristics such size, optical properties, hydrophobicity, thermal conductivity. Heat source function corresponding asymmetry factor at various conditions evaluated to interpret mechanisms negative positive transition between them. The discloses that surface or fluid slippage particle-liquid interface may lead remarkable enhancement liquids. Higher conductivity larger size liquid both result weaker motion.