Abstract
A new bipyrazole-based porous organic polymer, TMBPH, was constructed by a nucleophilic substitution polymerization reaction with π-electron-rich 3,3′,5,5′-tetramethyl-4,4′-bipyrazol (TMBP) and hexachlorocyclotriphosphazene (HCCP). Its Brunauer-Emmett-Teller (BET) and Langmuir surface area are 68.97 and 160.69 m2 g-1, respectively, and its pore volume is 0.0851 cm3 g-1. TMBPH has a good thermal stability and displays excellent guest uptake of 5.86 g g-1 in iodine vapor. Interestingly, TMBPH presents a liquid polyiodide complex because of its high iodine adsorption capacity and low pore volume. TMBPH can also adsorb iodine in the solution, and the absorbed iodine can be released at higher temperatures or in the solution. TMBPH as an adsorbent is recovered and reused easily. Furthermore, fluorescent study indicated that TMBPH exhibits high sensitivity to electron-deficient picric acid (PA) via fluorescence quenching. Thus TMBPH can become an ideal absorbent for I2 and fluorescent sensing material for PA to address environmental issues.
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.
