摘要
目的:解决过氧化物酶催化降解过程中需要添加过氧化氢导致的系列问题。方法:采用光催化原位生成过氧化氢级联过氧化物酶催化策略,通过筛选催化剂晶型、反应体系pH值和温度,实现酚类化合物和偶氮染料的高效降解。结果:8种不同结构的有机污染物在40min内达到了良好的降解率。结论:与传统的有机污染物降解方法相比,试验建立的光酶级联策略具有绿色高效的特点,在环境安全和食品安全领域具有较好的应用潜力。
Objective:A strategy of degrading organic pollutants using aphoto-enzymatic cascade process was established,to avoid the problem caused by the use of H_(2)O_(2) as oxidant in peroxidasecatalyzed reaction.Methods:After screening of photosensitizer,reaction pH and temperature,phenols and azo dyes can be degraded efficiently herein,by a combination of photo-catalytic H_(2)O_(2) generation in situ and peroxidase-catalyzed oxidation.Results:8 organic pollutions in different structure can be degraded with good to excellent degradation rate within 40 minutes.Moreover,the mechanism of this degradation process was proposed.Conclusion:Compared with classic methods of degrading organic pollutants,this photo-enzymatic cascade process has an advantage of safety and efficiency,and has application potential in environmental and food safety.
作者
俞晓敏
潘戴清
龙青云
陈晓阳
YU Xiao-min;PAN Dai-qing;LONG Qing-yun;CHEN Xiao-yang(College of Biological,Chemical Science and Engineering,Jiaxing University,Jiaxing,Zhejiang 314001,China)
出处
《食品与机械》
北大核心
2022年第6期73-76,155,共5页
Food and Machinery
基金
浙江省自然科学基金(编号:LQ22B020006)
嘉兴市公益项目(编号:2021AY10047)。
关键词
有机污染物
光酶催化
过氧化物酶
降解
organic pollutions
photoenzymatic reaction
peroxidase
degradation
作者简介
俞晓敏,女,嘉兴学院在读本科生;通信作者:陈晓阳(1988-),男,嘉兴学院讲师,博士。E-mail:chenxychem@163.com。
