Menggang Lu, Xiaoguang Guo, Song Yuan, Zhuji Jin, R. Kang, D. Guo
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Abstract
Heat treatment of nano-diamond (ND) in air can alter the ND surface chemistry and improve its dispersion. The relationship between the heat treatment temperature and ND surface groups was studied and the effects of different heat treatment conditions on ND size distribution and Zeta potential were elucidated in this paper. The results showed that suitable heat treatment could increase the number of hydrophilic groups as well as the absolute value of Zeta potential on the ND surface, and improve the dispersion and dispersion stability of ND.
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