氮掺杂碳材料降解苯酚的研究  

Research on the Degradation of Phenol by Nitrogen-doped Carbon Materials

作　　者：花娇娇 陈卫 张浩杰 刘成 李倩 余慧敏 王星烁 赵静怡 刘琦 郭磊磊 Hua Jiaojiao;Chen Wei;Zhang Haojie;Liu Cheng;Li Qian;Yu Huimin;Wang Xingshuo;Zhao Jingyi;Liu Qi;Guo Leilei(College of Pharmacy,Xinyang Agricultural and Forestry College,Xinyang Henan 464000,China)

机构地区：[1]信阳农林学院药学院,河南信阳464000

出　　处：《山西化工》2025年第3期7-9,13,共4页Shanxi Chemical Industry

基　　金：河南省科技攻关计划项目(232102320294,242102320266);信阳农林学院大别山特色中药活性成分与功效关联评价体系的研究科技创新团队(XNKJTD-008);信阳农林学院青年基金项目(QN2023029)。

摘　　要：采用热解法,以葡萄糖溶液、尿素、双氰胺为原材料制备氮掺杂碳材料CN-800,并对其降解苯酚的性能进行了分析。通过单因素实验考查了CN-800+过硫酸盐(PS)体系,催化剂CN-800的添加量,氧化剂过硫酸盐(PS)的浓度,初始pH值对降解效果的影响。结果表明,CN-800能有效活化过硫酸盐降解苯酚,当催化剂质量浓度为0.7 g/L,氧化剂浓度为3 mmol/L,初始pH为10时,苯酚降解率可达到97.8%。CN-800+PS体系降解苯酚的过程更符合准一级反应动力学方程,氮掺杂碳材料在PS体系中催化降解苯酚的效果较好。Nitrogen-doped carbon CN-800 was prepared using a pyrolysis method with glucose solution,urea and dicyandiamide,and its ability to degrade phenol was analyzed.The effects of CN-800+persulfate(PS)system,the amount of CN-800 catalyst,the concentration of oxidant persulfate(PS)and the initial pH value on the degradation effect were investigated by single factor experiment.The results show that CN-800 can effectively activate persulfate to degrade phenol.When the catalyst content is 0.7 g/L,the oxidant concentration is 3 mmol/L,and the initial pH is 10,the degradation rate of phenol can reach 97.8%.The degradation process of phenol in CN-800+PS system is more consistent with the quasi-first-order reaction kinetic equation,the catalytic degradation of phenol by nitrogen-doped carbon material in PS system was better.

关 键 词：氮掺杂碳材料 过硫酸盐 降解率 催化剂 苯酚 

分 类 号：X703[环境科学与工程—环境工程]