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Journal of Materials Science

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01-09-2011

Enlargement of diatom frustules pores by hydrofluoric acid etching at room temperature

Authors: Deyuan Zhang, Yu Wang, Wenqiang Zhang, Junfeng Pan, Jun Cai

Published in: Journal of Materials Science | Issue 17/2011

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Abstract

Based on the fact that SiO₂ can dissolve in HF solution, three kinds of diatom frustules were treated with 1% HF solution at room temperature. Given the proper reaction times (0–2 h for the diatoms Coscinodiscus and Navicula, and 0–3 h for the diatom Melosira), the size of the pores on the frustules gradually increased and the structures of the frustules remained. While HF treatment does not affect the composition, chemical bonds, or photoluminescence signature of the diatom frustules, the treatment reduces their surface areas. This method may be beneficial to diatom studies, diatom nanotechnology, and diatom device applications that make use of diatom pores.

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Title: Enlargement of diatom frustules pores by hydrofluoric acid etching at room temperature
Authors: Deyuan Zhang
Yu Wang
Wenqiang Zhang
Junfeng Pan
Jun Cai
Publication date: 01-09-2011
Publisher: Springer US
Published in: Journal of Materials Science / Issue 17/2011
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-011-5517-5

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