On the ζ-Potential of Nanodiamond in Aqueous Systems

J Mater Sci Technol ›› 2004, Vol. 20 ›› Issue (04): 469-471.

• Research Articles • Previous Articles Next Articles

On the ζ-Potential of Nanodiamond in Aqueous Systems

Yongwei ZHU, Xiangqian SHEN, Zhijing FENG, Xiangyang XU, Baichun WANG

Department of Precision Instruments & Mechanology, Tsinghua University, Beijing 100084, China;R&D Center, Changsha Research Institute of Mining and Metallurgy, Changsha 410012, China

Received:1900-01-01 Revised:1900-01-01 Online:2004-07-28 Published:2009-10-10
Contact: Yongwei ZHU

Abstract

Abstract: 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.

Key words: Nanodiamond, ζ-potential, Suspension, Surfactant

Yongwei ZHU, Xiangqian SHEN, Zhijing FENG, Xiangyang XU, Baichun WANG. On the ζ-Potential of Nanodiamond in Aqueous Systems[J]. J Mater Sci Technol, 2004, 20(04): 469-471.

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On the ζ-Potential of Nanodiamond in Aqueous Systems

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