棒状C_(3)N_(5)负载微纤化纤维素复合体光催化降解盐酸四环素研究  

Photocatalytic degradation of tetracycline hydrochloride by rod-shaped C_(3)N_(5)-loaded microfibrillated cellulose composite

作　　者：张婷[1,2] 冯成启 那海宁 刘斐[1,2] 朱锦 Zhang Ting;Feng Chengqi;Na Haining;Liu Fei;Zhu Jin(Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201;University of Chinese Academy of Sciences,Beijing 100049)

机构地区：[1]中国科学院宁波材料技术和工程研究所,浙江省生物基高分子材料技术与应用重点实验室,宁波315201 [2]中国科学院大学,北京100049

出　　处：《化工新型材料》2025年第2期272-275,共4页New Chemical Materials

基　　金：国家自然科学基金(21978310);中国科学院宁波材料技术与工程研究所所长基金重点项目(E30204QF21);2023海南省重点研发项目(ZDYF2023XDNY053);中科蚌埠技术转移专项项目(ZKBB202206)。

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C_(3)N_(5)(R-C_(3)N_(5))。利用R-C_(3)N_(5)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-C_(3)N_(5)均匀负载嵌入到MFC堆叠的网络中组装成R-C_(3)N_(5)@MFC复合体。结果表明:在光照条件下,R-C_(3)N_(5)@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)。The rod-shaped C_(3)N_(5)(R-C_(3)N_(5))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-C_(3)N_(5)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-C_(3)N_(5)was uniformly loaded and embedded into the stacked network of MFC to form the R-C_(3)N_(5)@MFC composite.The results demonstrated that under the condition of light exposure,the R-C_(3)N_(5)@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C_(3)N_(5) 比表面积 微纤化纤维素 光催化降解 

分 类 号：TS721[轻工技术与工程—制浆造纸工程]