Abstract
AbstractMelamine and cyanic acid were self‐assembled into the supramolecular precursor through hydrogen bonding, and the precursor was treated by adding different amounts of H2O2. A series of polymeric carbon nitrides by H2O2 were prepared by the high temperature calcination method, and these samples were characterized by various modern analysis methods. Taking Rhodamine B(RhB) as the pollutant, the effect of H2O2 addition on the photocatalytic performance of polymeric carbon nitride was investigated. The results show that the addition of H2O2 affected the structural composition of polymeric carbon nitride and enhanced its photocatalytic performance. The photocatalytic degradation of RhB by the polymeric carbon nitride with 30 mL H2O2 was the best, and the degradation time of RhB to 90 % by this polymeric carbon nitride was at least 10 min earlier than that of the sample without H2O2. The degradation of RhB by the polymeric carbon nitride with 30 mL H2O2 was 99.7 % within 30 min. This polymeric carbon nitride had good stability, and the degradation of RhB decreased slightly after cyclic experiment but the chemical groups remained unchanged.
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