摘要
由于水体富营养化导致的蓝藻问题日益严重.用共沉淀法制备了4种水滑石铁氧化物,并将其用来杀藻.用XRD、FT-IR、SEM等表征分析其晶体结构、基团化学环境及其形貌,探讨其合成机理.比较了4种水滑石/铁氧化物杀藻能力,探究磁铁矿对H2O2的分解能力,并比较光暗条件下的杀藻情况.实验结果表明:在外加光和H2O2条件下,水滑石铁氧化物与之形成异相Fenton体系,对铜绿微囊藻的去除率高达90%以上.
The blue-green algae growing problem caused by eutrophication is becoming more and more serious,especially microcystis aeruginosanosa.Four kinds of hydroxide/iron oxide（magnetite FeHDL,hematite Fe-HDL,goethite Fe-HDL and specularite Fe-HDL）was prepared by coprecipitation and were used to remove the algae.The crystal structure,chemical groups and morphology of magnetite Fe-HDL was analyzed by XRD,FT-IR and SEM,and the synthetic mechanism was also discussed.Compared with the four different kinds of Fe-HDL on a removal of microcystis aeruginosanosa,and explored the magnetite decomposing capability of H2O2.We also compared the condition under light and the darkness to remove the algae.The experimental results showed that under the condition of coupled with light and H2O2,the Fe-HDL could form heterogeneous Fenton process with them,and the removal rate as high as 90% above.
出处
《湖北大学学报（自然科学版）》
CAS
2016年第1期79-84,共6页
Journal of Hubei University：Natural Science
基金
国家自然科学基金(51374157)
教育部新世纪优秀人才计划项目(NCET-12-0713)
湖北省自然科学基金(2013CFA106)
武汉工程大学研究生教育创新基金(CX2014111)资助
关键词
水滑石
铁矿
铜绿微囊藻
FENTON体系
光催化
hydrotalcite
magnetite
microcystis aeruginosanosa
Fenton system
photocatalytic
