Aggregation behavior of nanodiamonds and their functionalized analogs in an aqueous environment

被引：35

作者：

Desai, Chintal ^{[1
]}

Chen, Kun ^{[1
]}

Mitra, Somenath ^{[1
]}

机构：

[1] New Jersey Inst Technol, Dept Chem & Environm Sci, Newark, NJ 07102 USA

来源：

ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS | 2014年 / 16卷 / 03期

关键词：

WALLED CARBON NANOTUBES; FULLERENE C-60; PARTICLES; KINETICS;

D O I：

10.1039/c3em00378g

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The colloidal behavior of aqueous dispersions of detonation nanodiamonds (DNDs) and carboxylated nanodiamonds (DND-COOH) which were synthesized via a microwave process is presented. Both forms of DNDs were found to be relatively stable in aqueous solutions, but aggregated rapidly in the presence of mono and divalent salts. The critical coagulation concentration (CCC) values for DNDs and DND-COOH were estimated to be between 8 and 10 mM for NaCE and 7 and 8 mM for MgCl2. In general, the formation of carboxyl groups on the DND surface did not alter colloidal behavior as dramatically as it is known to do for other nanocarbons especially carbon nanotubes.

引用

页码：518 / 523

页数：6

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