Simple evaluation of adsorption property of miicro-substances using gelled test solutions

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K00586
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Environmental engineering and reduction of environmental burden
• Research Institution: Toyo University
• Principal Investigator: SEIDA Yoshimi 東洋大学, 経済学部, 教授 (60216504)
• Co-Investigator(Kenkyū-buntansha): 鈴木 孝弘 東洋大学, 経済学部, 教授 (30192131)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 極微量物質 / 水晶振動子マイクロバランス / 吸着 / ゲル

Outline of Final Research Achievements

Quartz crystal microbalances (QCMs) with adsorbents immobilized on the QCM surface were examined. The QCM devices were contacted with a trace amount of VOC gas or gelled test solution with a trace amount of adsorbate. The applicability of the method as a data acquisition method of trace chemicals was examined. Although the gelation of test solutions had an effect on the QCM response, the influence of solvent gelation was small when the gel with high water content was used. When the amount of gelling solvent is small, the effects of solvent drying and gel deformation are not negligible. The influence was clarified from a surface thermography and QCM-A response. It was also clarified that VOC measurement can be available using the QCMs with gel membrane or nanoparticle adsorbent fixed on the QCM with high resolution. In the case of nanoparticle adsorbent, fixation method on the QCM greatly affects viscosity factor of QCM signal due to a fluctuation of the immobilized nanoparticles.

Free Research Field

環境化学工学