首页|A pyridinyl-phenanzine conjugated microporous polymer decorated with ultrafine Ag nanoparticles mediates the rapid reduction of nitrophenol
A pyridinyl-phenanzine conjugated microporous polymer decorated with ultrafine Ag nanoparticles mediates the rapid reduction of nitrophenol
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NSTL
Elsevier
? 2022 Elsevier Inc.In this study we used classical Suzuki polycondensation to prepare a pyridinyl-phenanzine (TPPQP) conjugated microporous polymer (CMP) that featured a spherical morphology with a large surface area (371 m2 g?1) and high thermal stability (Td10 = 625 °C; char yield = 81.7 wt%). The framework of the TPPQP CMP presented many dynamic pyridinic units could capture Ag+ ions from solution and facilitate their self-reduction to Ag nanoparticles, thereby forming Ag@TPPQP CMP nanocatalysts. The Ag@TPPQP CMP nanocatalysts were strong reducing agents for pollutant nitrophenols, converting them into safe amino forms at standard temperature and pressure with a high normalized rate of 19.4 mg?1 s?1. The pyridinic units in the TPPQP CMP structure played an important role in the catalytic reaction, interacting with the phenolic OH groups of p-nitrophenol to accelerate the reduction.
NSTL
Elsevier
