Monitoring iodine adsorption onto zeolitic-imidazolate framework-8 film using a separated-electrode piezoelectric sensor

作     者：Da-Zhong Shen Ting-Ting Cai Xi-Lei Zhu Xiao-Long Ma Ling-Qiang Kong Qi Kang 

作者机构：The Key Lab in Molecular and Nano-materials Probes of the Ministry of Education of China College of Chemistry Chemical Engineering and Materials ScienceShandong Normal University 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2015年第26卷第8期

页      面：1022-1025页

核心收录：

学科分类：081704[工学-应用化学] 080202[工学-机械电子工程] 08[工学] 0817[工学-化学工程与技术] 0802[工学-机械工程] 

基　　金：financial support by National Natural Science Foundation of China(Nos.21175084,21275091) the Opening Fund of Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research(Hunan Normal University),Ministry of Education(No.KLCBTCMR2001-01) Research Fund for the Doctoral Program of Higher Education of China(No.20113704110003) 

主　　题：piezoelectric separated iodine quartz naked impedance resonant adsorbed reserved operated 

摘      要：In this work, a separated-electrode piezoelectric sensor（SEPS）, constructed by a naked quartz crystal mounted between two electrodes, is reported for applications in a corrosive gaseous phase. The response of SEPS was measured by an impedance analysis method. It was shown that SEPS has an excellent frequency stability because its quality factor is in the order of 10^5. The SEPS can be operated even with the electrode gap in air larger than 1 cm. Compared with a conventional quartz crystal microbalance, the resonant frequency of the SEPS is independent of the mass change in the electrode. The SEPS was applied to monitor the adsorption of iodine on quartz surface and zeolitic-imidazolate framework-8（ZIF-8） film as well as in the transfer of iodine between two ZIF-8 films. The SEPS offers the advantages of easy preparation, corrosion-resistant and convenience in combination with mass and optical measurements.