Abstract
ZrO2 nanotube array films (ZNA) were prepared by anodisation method, and ZNA was modified with γ-aminopropyltriethoxysilane (APTES) to prepare amino-functionalized ZNA (ZNA-NH2). Through immobilizing Cu2+ ions and RB on ZNA and ZNA-NH2, the detection of Cu2+ ions could be realized by measuring the change of fluorescence intensity of RB, and the effects of APTES and RB concentrations on the detection performances were studied. The results show that the fluorescence detection performances of ZNA-NH2 carrier are significantly better than those of ZNA. The best detection performances for Cu2+ ions are achieved with the RB concentration of 10 mg/L and the APTES concentration of 0.4 M. The minimum detection limit is 0.68 nM (S/N = 3), and the linear range is from 1 × 10−3 to 3 × 102 μM under the optimal experimental conditions. The carriers can be regenerated and reused after being soaked in acetic acid solution. This work can be applied to the detection of Cu2+ ions in real seawater.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
