Development of Li-free self-cleaning glasses with quick pH response

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560823
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic materials/Physical properties
• Research Institution: Mie University
• Principal Investigator: HASHIMOTO Tadanori 三重大学, 工学(系)研究科(研究院), 准教授 (10271016)
• Co-Investigator(Kenkyū-buntansha): ISHIHARA Atsushi 三重大学, 大学院工学研究科, 教授 (60212908) ; NASU Hiroyuki 三重大学, 大学院工学研究科, 准教授 (20189179)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: pH応答ガラス / Liフリー / 電子伝導ガラス / メンテナンスフリー / 光触媒活性 / 光誘起親水性 / 撥水性

Outline of Final Research Achievements

Commercially available pH electrodes (Li2O-SiO2-based glasses) have fatal problem that pH response is deteriorated by the accumulation of stain easily. In order to solve this problem, we developed two types of maintenance-free pH responsive glasses. The first one is Ti3+-containing TiO2-P2O5 (TP) glasses with self-cleaning property (photocatalytic activity and photo-induced hydrophilicity). The second one is Fe2O3-Bi2O3-B2O3 (FeBiB) glasses with anti-fouling property (hydrophobicity). In addition, we found that TP and FeBiB glasses show the quick pH response based on the electronic conduction as well as the high pH sensitivity.

Free Research Field

工学