中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 烟台海岸带研究所
  3. 中国科学院烟台海岸带研究所
  4. 中科院海岸带环境过程与生态修复重点实验室
  5. 近岸生态与环境实验室
Synthesis of magnetic core-shell Fe3O4@SiO2@Mg(OH)(2) composite using waste bischofite and its catalytic performance for ozonation of antibiotics

文献类型：期刊论文

作者Wu, Jun2,3,4; Sun, Qi1; Lu, Jian1
刊名JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
出版日期2020-10-01
卷号8期号:5页码:10
关键词Waste Bischofite Recycling Catalytic Ozonation Sulfathiazole Magnetic core-shell particles
DOI10.1016/j.jece.2020.104318
通讯作者Lu, Jian(jlu@yic.ac.cn)
英文摘要This study investigated the possibility of recycling bischofite which was discarded with a great quantity from salt industry as catalyst for ozonation of sulfathiazole. Bischofite was used to successfully synthesize nano-scaled magnetic core-shell Fe3O4@SiO2@Mg(OH)(2) which could be easily separated for reuse by an external magnetic field. Element mapping showed that this composite microsphere was composed of a Fe3O4 core, a SiO2 shell and a Mg(OH)(2) outer shell. Reaction rate, operation conditions, mineralization, and antibacterial activity of catalytic ozonation of sulfathiazole using Fe3O4@SiO2@Mg(OH)(2) were investigated. The reaction rate constant of Fe3O4@SiO2@Mg(OH)(2) treatment was almost twice that of single ozonation. Operation conditions including catalyst dosage of 0.15 g/L, pH of 7.0, and temperature of 25 degrees C were optimal for removal of sulfathiazole by catalytic ozonation. Over 99.0% of sulfathiazole could be removed within 10 min by catalytic ozonation with Fe3O4@SiO2@Mg(OH)(2). About 99.0% of sulfathiazole could be removed by catalytic ozonation with Fe3O4@SiO2@Mg(OH)(2) that was reused 4 times. About 40.1% of total organic carbon was removed within 60 min by catalytic ozonation with Fe3O4@SiO2@Mg(OH)(2) to exhibit good mineralization feature for sulfathiazole. Catalytic ozonation played important role in affecting antibacterial activity of sulfathiazole. Initial concentration of sulfathiazole and inorganic ions had negative effect on removal efficiency. Sulfathiazole was degraded through cleavage and oxidation processes during catalytic ozonation by Fe3O4@SiO2@Mg(OH)(2). This study provides a new core-shell magnetic material for antibiotic pollution control and a promising new application pathway for using waste bischofite.
WOS关键词PHOTOCATALYTIC DEGRADATION ; REMOVAL ; WATER ; SULFATHIAZOLE ; MICROSPHERES ; SULFONAMIDES ; HYDROXIDE ; OXIDATION ; TOXICITY ; PRODUCTS
资助项目National Natural Science Foundation of China[41877131] ; Taishan Scholars Program of Shandong Province[tsqn201812116] ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences[KFJ-STS-QYZX-114] ; Youth Innovation Team Project for Talent Introduction and Cultivation in Universities of Shandong Province
WOS研究方向Engineering
语种英语
WOS记录号WOS:000575531600019
资助机构National Natural Science Foundation of China ; Taishan Scholars Program of Shandong Province ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Youth Innovation Team Project for Talent Introduction and Cultivation in Universities of Shandong Province
源URL[http://ir.yic.ac.cn/handle/133337/28428]  
专题烟台海岸带研究所_近岸生态与环境实验室
烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Lu, Jian
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Shandong, Peoples R China
2.Harbin Engn Univ, Grad Sch, Yantai 265501, Shandong, Peoples R China
3.Harbin Engn Univ, Coll Mat & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China
4.Harbin Engn Univ, Yantai Res Inst, Yantai 265501, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Jun,Sun, Qi,Lu, Jian. Synthesis of magnetic core-shell Fe3O4@SiO2@Mg(OH)(2) composite using waste bischofite and its catalytic performance for ozonation of antibiotics[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2020,8(5):10.
APA Wu, Jun,Sun, Qi,&Lu, Jian.(2020).Synthesis of magnetic core-shell Fe3O4@SiO2@Mg(OH)(2) composite using waste bischofite and its catalytic performance for ozonation of antibiotics.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,8(5),10.
MLA Wu, Jun,et al."Synthesis of magnetic core-shell Fe3O4@SiO2@Mg(OH)(2) composite using waste bischofite and its catalytic performance for ozonation of antibiotics".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 8.5(2020):10.

入库方式： OAI收割

来源：烟台海岸带研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。