Yongwei ZHU
,
Feng XU
,
Jianliang SHEN
,
Baichun WANG
,
Xiangyang XU
,
Jianbin SHAO
材料科学技术（英）
Fourier transform infrared spectroscopy (FT-IR) and ζ-potential were introduced to study the effect of different modification parameters on the surface properties of nanodiamond (ND). Results showed that under stirring grinding conditions, ND hard aggregates were smashed and some active spots on them reacted with surfactant molecules, which led to the increase in its ³-potential and stability. Different models of surface modification were also given in this study.
关键词:
Surface modification
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null
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Yongwei ZHU
,
Xiangqian SHEN
,
Zhijing FENG
,
Xiangyang XU
,
Baichun WANG
材料科学技术（英）
Several factors affecting the ζ-potential of nanodiamonds were studied. The Chemical Mechanical Modification (CMM) of surface, different surfactants and its dosage, and inorganic ions on the ζ-potential of nanodiamond sample L were studied using ZETASIZER3000HS and Nexus470. Results show that the ζ-potential changes with its parameters of detonation synthesis and purification. Results also suggest that CMM and subsequent treatments employed can alter apparently the ζ-potential and that some anionic surfactants increase the absolute value of the ζ-potential in the alkaline surrounding.
关键词:
Nanodiamond
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null
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null
,
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