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- W4282834923 abstract "Polymeric carbon nitride (PCN) has great potential for peroxydisulfate (PDS) activation but still challenge due to the sluggish electron-hole pair dissociation and tardy charge transfer dynamics. Herein, a novel PCN-based donor-acceptor conjugated polymer (PCN/4-MI D-A) is synthesized by copolymerization of urea and 4-methoxyphenyl isothiocyanate. The obtained PCN/4-MI D-A exhibited significantly improved activity on PDS activation for nitenpyram (NTP) degradation under visible light. As a result, PDS+PCN/4-MI75 shows the highest kinetic constants (0.115 min−1), which is ~6.8 times as that of the pure PCN. Density functional theory (DFT) calculations indicated that 4-methoxyphenyl as an electron-donating group promotes the charge separation/transfer of PCN/4-MI D-A. In addition, the PCN/4-MI D-A is more conducive to the PDS adsorption at the position where the amino group linked with 4-MI. The PCN/4-MI D-A generated abundant electrons which were subsequently transferred to the PDS by tunneling effect. This study provides a new design concept for the highly efficient PDS activation by constructed PCN-based donor-acceptor conjugated polymers." @default.
- W4282834923 created "2022-06-15" @default.
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- W4282834923 date "2022-11-01" @default.
- W4282834923 modified "2023-10-17" @default.
- W4282834923 title "Rational design of donor-acceptor conjugated polymers with high performance on peroxydisulfate activation for pollutants degradation" @default.
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- W4282834923 doi "https://doi.org/10.1016/j.apcatb.2022.121611" @default.
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