Quantifying nanosheet graphene oxide using electrospray-differential mobility analysis

Analytical Chemistry
Jui-Ting TaiDe-Hao Tsai

Abstract

We report a high-resolution, traceable method to quantify number concentrations and dimensional properties of nanosheet graphene oxide (N-GO) colloids using electrospray-differential mobility analysis (ES-DMA). Transmission electron microscopy (TEM) was employed orthogonally to provide complementary data and imagery of N-GOs. Results show that the equivalent mobility sizes, size distributions, and number concentrations of N-GOs were able to be successfully measured by ES-DMA. Colloidal stability and filtration efficiency of N-GOs were shown to be effectively characterized based on the change of size distributions and number concentrations. Through the use of an analytical model, the DMA data were able to be converted into lateral size distributions, showing the average lateral size of N-GOs was ∼32 nm with an estimated thickness ∼0.8 nm. This prototype study demonstrates the proof of concept of using ES-DMA to quantitatively characterize N-GOs and provides traceability for applications involving the formulation of N-GOs.

References

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May 1, 2012·Advanced Materials·Zhiqiang NiuXiaodong Chen
Jan 23, 2013·Analytical and Bioanalytical Chemistry·Sherrie ElzeyVincent A Hackley
Aug 14, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·De-Hao TsaiVincent A Hackley
Mar 7, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·De-Hao TsaiVincent A Hackley
Apr 1, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Xiaoli ZhaoChao Gao
Apr 20, 2014·Science·Kostas Kostarelos, Kostya S Novoselov
Oct 9, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Jui-Ting TaiDe-Hao Tsai

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Citations

Feb 14, 2016·Journal of Colloid and Interface Science·Hsuan-Lan WangDe-Hao Tsai
Nov 14, 2015·Analytical Chemistry·Ian L Gunsolus, Christy L Haynes
May 31, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Yen-Chih LaiDe-Hao Tsai
Sep 1, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Wei-Chang ChangDe-Hao Tsai
Jan 20, 2019·Analytical and Bioanalytical Chemistry·Hung-Li WangDe-Hao Tsai

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