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Citation: XUE Ya-Feng, LIU Gen-Qi, GAO Min-Jun, CHEN Xiao-Juan, FAN Xiao-Dong. Molecularly Imprinted Photonic Crystal Hydrogel Sensor for Detection of 2, 4, 6-Trichlorophenol[J]. Chinese Journal of Analytical Chemistry, ;2016, 44(12): 1828-1833. doi: 10.11895/j.issn.0253-3820.160522 shu

Molecularly Imprinted Photonic Crystal Hydrogel Sensor for Detection of 2, 4, 6-Trichlorophenol

Shaanxi Key Laboratory of Macromolecular Science and Technology, Department of Applied Chemistry, College of Science, Northwestern Polytechnical University, Xi'an 710129, China

Received Date: 8 July 2016
Revised Date: 29 September 2016

A molecularly imprinted photonic crystal hydrogel sensor was developed with 2,4,6-trichlorophenol (2,4,6-TCP) as imprinting molecule, methanol as solvent, methacrylic acid as monomers and ethylene glycol dimethylacrylate as cross-linkers. The three-dimension silica colloidal crystal template was removed by 1% HF (V/V) and molecularly imprinted template was removed by 0.015 mol/L NaOH. The results showed that the maximum absorption peak red-shifted 31 nm when the concentration of 2,4,6-TCP changed from 0 to 6×10^-4 mol/L. Then, with further increasing 2,4,6-TCP concentration, the maximum absorption peak began to blue-shift. When the concentration of 2,4,6-TCP changed to 1×10^-3 mol/L, the maximum absorption peak blue-shifted 56 nm and the response time was just 30 min. This molecularly imprinted photonic crystal hydrogel sensor showed high sensitivity, high selectivity and easy operation, and was applied for the naked-eye detection of 2,4,6-trichlorophenol.
- Photonic crystal,
- Molecular imprinting,
- Hydrogel,
- 2,4,6-Trichlorophenol,
- Chemical sensor
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