Folded graphene microsphere preparation and wettability modulation and its acetone sensing study

doi:10.19936/j.cnki.2096-8000.20240428.002

Abstract

Abstract: For the purpose of increasing the surface roughness to obtain superhydrophobic composites, this paper introduced a binary solvent of water-acetone to investigate GO dispersion and evaporation in the binary solvent. Later on, by spray frying method, FGO were obtained to investigate the effect of solvent components on the wettability. Finally, FGO was compounded with PDMS to make an acetone-sensitive superhydrophobic sensor. The results show that GO is well dispersed and has a good evaporation rate in a binary solvent with a 20% water fraction, and the obtained FGO has a contact angle of 149.1°. The prepared composites have good bonding and superhydrophobicity of 150.2°, as well as good sensing performance at acetone concentrations of 0.03~0.075 mol/L, with a sensitivity of 115 (mol/L)^-1.

Key words: acetone, folded graphene microspheres, composite materials, superhydrophobic sensors

CLC Number:

TB332

WANG Rui, MEI Qilin, DING Guomin, CHEN Shuhui, XU Jianrong, JIANG Duanyang. Folded graphene microsphere preparation and wettability modulation and its acetone sensing study[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(4): 14-19.

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