A recyclable, fluorescent, and colorimetric sensor for fluoride anion in water using a crosslinked polymer functionalized with hydroxyl quinolinium

作者：Tang, Qian; Nie, Hong-Mei; Gong, Cheng-Bin^*; Liu, Hua-Dong; Xiao, Kun

来源：RSC Advances, 2015, 5(5): 3888-3893.

DOI：10.1039/c4ra13277g

• ION-SELECTIVE ELECTRODE
• RAFT POLYMERIZATION
• SENSING PROPERTIES
• PROTON-TRANSFER
• F-ANION
• CHEMOSENSOR
• RECEPTOR
• PROBE
• COMPLEX
• ACETATE

This study aimed to develop a recyclable, fluorescent, and colorimetric sensor for fluoride anion (F-) in aqueous media with fast response, good selectivity, and high sensitivity. A crosslinked polymer CpA1T5 was designed and synthesized as a sensor using (E)-1-allyl-4-((4-hydroxylphenyl)vinyl) quinolinium bromide as functional monomer, trimethylolpropane trimethacrylate as crosslinker, and azobisisobutyronitrile as initiator. When F- was introduced to the CpA1T5 suspension in deionized water, a change in color from gray to yellow and fluorescence enhancement accompanied with a redshift from 531 nm to 540 nm of fluorescence emission were immediately observed. This F- sensor can be recycled many times, making it cost efficient and beneficial to the environment. Analytical application of CpA1T5 to measure F- concentration in two commercial mouthwash samples was explored with good accuracy.

• 出版日期2015
• 单位西南大学