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Photoresponsive hollow molecularly imprinted polymer for the determination of trace bisphenol A in water
- Source :
- Journal of colloid and interface science. 481
- Publication Year :
- 2016
-
Abstract
- A photoresponsive hollow molecularly imprinted polymer (PHMIP) was fabricated for photoresponsive recognition and determination of trace bisphenol A (BPA) in aqueous media using a water-soluble azo compound as the functional monomer. The PHMIP was prepared on sacrificial silica microspheres by surface imprinting and subsequent removal of the silica core. The PHMIP displayed photocontrolled recognition for BPA. SEM, TEM, FT-IR, TGA and N2 adsorption-desorption analyses confirmed successful formation of the hollow structure. The PHMIP displayed higher binding capacity, a larger specific area, and faster mass transfer rate than its corresponding surface molecularly imprinted polymer. The PHMIP was used to determine trace BPA in real samples with a limit of detection of 0.5ppm. For samples spiked at 0-10ppm, the BPA recoveries were in the range of 93.0%-99.0%. This PHMIP-based method provides convenient and inexpensive detection method for trace BPA in environmental samples. This method is especially suitable for determining materials that do not possess specific spectroscopic or luminescent properties.
- Subjects :
- Detection limit
endocrine system
Bisphenol A
Azo compound
Chromatography
Aqueous medium
Molecularly imprinted polymer
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Microsphere
Biomaterials
chemistry.chemical_compound
Functional monomer
Colloid and Surface Chemistry
chemistry
0210 nano-technology
Luminescence
Nuclear chemistry
Subjects
Details
- ISSN :
- 10957103
- Volume :
- 481
- Database :
- OpenAIRE
- Journal :
- Journal of colloid and interface science
- Accession number :
- edsair.doi.dedup.....a7ea0d1ee7cfe529367bf938a7378629