精细与专用化学品

为解决传统光催化材料回收困难的问题，通过简单的聚合物稳定化技术成功制备了5-氨基四氮唑改性的氮化碳(CN-ATZ)光催化薄膜，并研究了其对污染物的光催化降解效率。实验结果表明，在波长范围为420～730nm的可见光源照射180min的条件下，该薄膜材料对亚甲基蓝(MB)降解率达到了98.10%,k值为0.0228min^-1,相比于纯CN膜(同等条件下降解率53%)表现出较高的降解活性；且循环使用4次后，MB降解率仍保持在90%以上。研究结果为构建可回收g-C_3N₄光催化膜处理有机废水提供了一条简便可行的途径。

To address the difficulty in recycling conventional photocatalytic materials, a 5-aminotetrazole-modified carbon nitride(CN-ATZ) photocatalytic film was successfully fabricated via a facile polymer-stabilization technique, and its photocatalytic degradation efficiency toward pollutants was investigated.Experimental results demonstrate that under visible-light irradiation(420～730nm) for 180min, the as-prepared film achieves a methylene blue(MB) degradation rate of 98.10% with a rate constant k of 0.0228min^-1.It exhibits superior degradation activity compared with the pure CN film(whose degradation rate is less than 53% under identical conditions).Moreover, the MB degradation efficiency remains above 90% after four consecutive recycling cycles.This research provides a facile and feasible strategy for constructing recyclable g-C_3N₄ photocatalytic films for organic wastewater treatment.