Drastic Dependence of the pH Sensitivity of Fe₂O₃-Bi₂O₃-B₂O₃ Hydrophobic Glasses with Composition.
作者信息
Hashimoto Tadanori, Murayama Fumiya, Nakao Masashi, Nasu Hiroyuki, Ishihara Atsushi, Nishio Yuji
机构信息
Division of Chemistry for Materials, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-Cho, Tsu City, Mie Prefecture 514-8507, Japan.
HORIBA, Ltd., 2 Miyanohigasi, Kisshoin, Minami-Ku, Kyoto 601-8510, Japan.
出版信息
Materials (Basel). 2015 Dec 10;8(12):8624-8629. doi: 10.3390/ma8125480.
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.
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