期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2022

48

3

319-325

10.13331/j.cnki.jhau.2022.03.011

湖南省自然科学基金项目（2018JJ2160）； 湖南省教育厅重点项目（17A091）；

本校为第一机构

以酵母菌为载体，废弃烟叶提取物为还原剂，制备酵母菌载纳米铁（TB–Fe/SC NPs），并探究其去除水中2， 4， 6–三氯酚（2， 4， 6–TCP）的性能。结果表明：负载在酵母菌上的纳米铁为粒径（77.6±16.1） nm的球形颗粒；TB–Fe/SC NPs去除2， 4， 6–TCP主要包括吸附和氧化降解2种途径，符合拟二级反应动力学模型；溶解氧和羟自由基在TB–Fe/SC NPs氧化降解2， 4， 6–TCP中起重要作用；TB–Fe/SC NPs对2， 4， 6–TCP的去除率随温度的升高而增大，随2， 4， 6–TCP初始浓度的增大而减少，而反应体系的pH值对TB–Fe/SC NPs去除2， 4， 6–TCP的影响较小；TB–Fe/SC NPs用量为1.0～3.0 g/L时，2...

Yeast supported iron nanoparticles(TB-Fe/SC NPs)was prepared by using yeast as carrier and waste tobacco leaf extract as reducing agent.The removal of 2,4,6-trichlorophenol(2,4,6-TCP)by the as-prepared TB-Fe/SC NPs in aqueous solutions was investigated.The results indicated that the iron nanoparticles loaded on the yeast was spherical with a particle size of(77.6±16.1)nm.The removal of 2,4,6-TCP by TB-Fe/SC NPs mainly consisted of two pathways of adsorption and oxidative degradation,and the 2,4,6-TCP removal well follows the pseudo-second orde...