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《Journal of Instrumental Analysis》 2008-07
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Study and Application of Photochemical Deposition of Silver on the Surface of TiO2 by Piezoelectric Quartz Crystal

ZHU De-rong1,SUN Hui2,PAN Wen-long3,CHEN Yong3(1.Faculty of Pharmacy,Guangdong Medical College,Guangzhou 510275,China;2.Department of Chemistry,Anshan Normal College,Anshan 114005,China;3.Guangdong Key Laboratory of Chemical Emergency Test,China National Analytical Centre(Guangzhou),Guangzhou 510070,China)  
Based on piezoelectric quartz crystal(PQC) technology,the photochemical deposition processes and the mechanism of Ag on TiO2 modified PQC electrode have been studied in detail.The PQC electrode was used for the determination of cyanide at trace levels in water.The freshly produced metallic Ag reacts with cyanide showing improved performance(strengthen the detection signal three times)as comparing to the bulk Ag-coating PQC.The frequencies shifts were measured with results showing a linear relationship within the cyanide concentrations from 0.1-10 μmol/L.The detection limit(2.2 μg/L)was found to be 1-2 orders of magnitude lower than the World Health Organization(WHO) guideline value for drinking water.Effects of various factors including nano-sized silver particle dimension and film thickness,background buffer,solution pH and potential interferents in environmental water samples were investigated.Factors affecting the photo-chemical deposition process of Ag on TiO2 were also studied.
【Fund】: 广东省科技厅重点资助项目(2003C102006 2004B30101007)
【CateGory Index】: TP212.2
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【References】
Chinese Journal Full-text Database 1 Hits
1 ZHOU Na1,ZHU Yan-tao2(1.Yunnan Environmental Radiation Supervision Station,Kunming Yunnan 650034 China);Application of Sensor in Water Quality Monitoring[J];Environmental Science Survey;2009-S1
【Co-citations】
Chinese Journal Full-text Database 4 Hits
1 QU Ling1,FU Wei-ling2(1.Department of Clinical Laboratory,Xijing Hospital,Fourth Military Medical University,Xi’an 710032,Shaanxi,China;2.Department of Clinical Laboratory,Southwest Hospital,Third Military Medical University,Chongqing 400038,China);Detection of blood plasma fibrinogen with piezoelectric quartz crystal sensor based fuzzy reasoning and decoupling control[J];Biomedical Engineering and Clinical Medicine;2009-03
2 TIAN Xiao-mei,HE Xiang,CHEN Yan(Plasma Research Institute,SCUFN,Wuhan Hubei 430074,China);Study on Degradating Methanol in Wines by Photic Catalysis[J];Journal of Wuhan University of Science and Engineering;2006-08
3 WEI Xiao-lan1,MO Zhi-hong2,LIANG Yu3(1.College of Environmental and Biological Engineering,Chongqing Technology and Business University,Chongqing 400067 China;2.The Chemisty & Chemical Engineering College of Chongqing University;Chongqing 400044,China;3.Mechanicas and Packing Engimeering School,Chongqing Technology and Business University,Chongqing 400067 China);Study on Adhesion of Hepatoma Cell and Extra Cellular Matrix by Quartz Crystal Resonator[J];Piezoelectrics & Acoustooptics;2007-03
4 WU Yong-qiang (Dept.of Material and Chemical Engineering,Sichuan Univercity of Sciences and Engineering,Zigong 643000,China);In-situ Study on the Electrode Surface of Piezoelectric Sensor with Physical Chemistry[J];Piezoelectrics & Acoustooptics;2008-06
【Co-references】
Chinese Journal Full-text Database 1 Hits
1 XUE Xiao-Kang, GUO Xing-Peng~*, YU Cheng-Ping(Department of Chemistry,Huazhong University of Science and Technology,Wuhan 430074);Preparation of a Potentiometric pH Sensor Based on Polypyrrole[J];Chinese Journal of Applied Chemistry;2005-04
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