Sol–Gel Chemistry for Ba2+ Sensors to Allow Oil Production Engineered Nanometrically |
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| Authors: | Lee Courtney Paul A. Sermon Jenny Towers Dost Halepoto Angela F. Danil de Namor Ian R. Collins |
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| Affiliation: | (1) Chemistry, School of Biomedical and Molecular Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK;(2) BP Exploration Operating Co. Ltd., Chertsey Road, Sunbury-on-Thames, TW16 7LN, UK |
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| Abstract: | Work on the development of a Ba2 +-sensitive sol–gel based optical fiber (OF) for use in oil wells is described. The optical fiber (OF) has on its surface a Ba2 + chelating ligand (L) immobilized at a 2–16 wt% loading immobilized in a porous SiO2 sol–gel host. The authors report sol–gel routes to these SiO2 and L/SiO2 nanocomposites and describe their characterization by XPS, fluorescence, NMR, UV-vis and BET methods. They also report on the sol–gel coating and its selectivity to Ba2 +(aq). |
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| Keywords: | silica sol– gels sensor Ba2 + ions crown ether picric acid calixarene |
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