化工新型材料

化工新型材料 ›› 2025, Vol. 53 ›› Issue (2) : 272-275. DOI: 10.19817/j.cnki.issn1006-3536.2025.02.043

开发与应用

棒状C₃N₅负载微纤化纤维素复合体光催化降解盐酸四环素研究

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Photocatalytic degradation of tetracycline hydrochloride by rod-shaped C₃N₅-loaded microfibrillated cellulose composite

Zhang Ting^1,2, Feng Chengqi¹, Na Haining^1,2, Liu Fei^1,2, Zhu Jin¹

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Received
2024-01-25
Issue Date	Revised Date
2025-02-20	2024-01-25

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摘要

采用KBr作为软模板引导富氮前躯体3-氨基-1,2,4-三氮唑经热聚合得到具有高比表面积的棒状C₃N₅(R-C₃N₅)。利用R-C₃N₅上含氮官能团的作用将粘胶纤维转化制备成微纤化高长径比的纤维素(MFC)相互堆叠的稳定网络结构,进而将R-C₃N₅均匀负载嵌入到MFC堆叠的网络中组装成R-C₃N₅@MFC复合体。结果表明:在光照条件下,R-C₃N₅@MFC能够对盐酸四环素(TC)产生高效催化降解。经光照120min后,TC的降解率为89%,催化降解速率为0.0155min^-1。

Abstract

The rod-shaped C₃N₅ (R-C₃N₅) with high specific surface area was obtained by using KBr as a soft template to guide the thermal polymerization of the nitrogen-rich precursor 3-amino-1,2,4-triazole.The role of nitrogen-containing functional groups on R-C₃N₅ was utilized to convert viscose fibers into a stacked and stable network of microfibrillated cellulose (MFC) with a high ratio of length to diameter.Then,R-C₃N₅ was uniformly loaded and embedded into the stacked network of MFC to form the R-C₃N₅@MFC composite.The results demonstrated that under the condition of light exposure,the R-C₃N₅@MFC was able to produce efficient catalytic degradation of tetracycline hydrochloride (TC).After 120 min of light exposure,the degradation rate of TC was 89%,and the catalytic degradation rate was 0.0155min^-1.

关键词

棒状C₃N₅ / 比表面积 / 微纤化纤维素 / 光催化降解

Key words

rod-shaped C₃N₅ / specific surface area / microfibrillated cellulose / photocatalytic degradation

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棒状C₃N₅负载微纤化纤维素复合体光催化降解盐酸四环素研究[J]. 化工新型材料, 2025, 53(2): 272-275 DOI:10.19817/j.cnki.issn1006-3536.2025.02.043

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