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Materials 2015, 8(12), 8624-8629; doi:10.3390/ma8125480

Drastic Dependence of the pH Sensitivity of Fe2O3-Bi2O3-B2O3 Hydrophobic Glasses with Composition

1
Division of Chemistry for Materials, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-Cho, Tsu City, Mie Prefecture 514-8507, Japan
2
HORIBA, Ltd., 2 Miyanohigasi, Kisshoin, Minami-Ku, Kyoto 601-8510, Japan
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Fernão D. Magalhães
Received: 24 November 2015 / Revised: 7 December 2015 / Accepted: 7 December 2015 / Published: 10 December 2015
(This article belongs to the Special Issue Self-Cleaning and Antimicrobial Surfaces)
View Full-Text   |   Download PDF [918 KB, uploaded 10 December 2015]   |  

Abstract

Fe2O3-Bi2O3-B2O3 (FeBiB) glasses were developed as novel pH responsive hydrophobic glasses. The influence of the glass composition on the pH sensitivity of FeBiB glasses was investigated. The pH sensitivity drastically decreased with decreasing B2O3 content. A moderate amount of Fe2O3 and a small amount of B2O3 respectively produces bulk electronic conduction and a pH response on glass surfaces. Because the remaining components of the glass can be selected freely, this discovery could prove very useful in developing novel pH glass electrodes that are self-cleaning and resist fouling. View Full-Text
Keywords: Fe2O3-Bi2O3-B2O3 glasses; pH electrodes; hydrophobicity Fe2O3-Bi2O3-B2O3 glasses; pH electrodes; hydrophobicity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Hashimoto, T.; Murayama, F.; Nakao, M.; Nasu, H.; Ishihara, A.; Nishio, Y. Drastic Dependence of the pH Sensitivity of Fe2O3-Bi2O3-B2O3 Hydrophobic Glasses with Composition. Materials 2015, 8, 8624-8629.

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