Lanzhou University of Technology Institutional Repository (LUT_IR)
Photocatalytic degradation kinetics and mechanism of antivirus drug-lamivudine in TiO2 dispersion | |
An, Taicheng1,2; An, Jibin1,2,3,5; Yang, Hai1,2,5; Li, Guiying1,2; Feng, Huixia3; Nie, Xiangping4 | |
2011-12-15 | |
发表期刊 | Journal of Hazardous Materials |
ISSN | 03043894 |
卷号 | 197页码:229-236 |
摘要 | Photocatalytic degradation kinetics of antivirus drug-lamivudine in aqueous TiO2 dispersions was systematically optimized by both single-variable-at-a-time and central composite design based on the response surface methodology. Three variables, TiO2 content, initial pH and lamivudine concentration, were selected to determine the dependence of degradation efficiencies of lamivudine on independent variables. Response surface methodology modeling results indicated that degradation efficiencies of lamivudine were highly affected by TiO2 content and initial lamivudine concentration. The highest degradation efficiency was achieved at suitable amount of TiO2 and with maintaining initial lamivudine concentration to a minimum. In addition, the contribution experiments of various primary reactive species produced during the photocatalysis were investigated with the addition of different scavengers and found that hydroxyl radicals was the major reactive species involved in lamivudine degradation in aqueous TiO2. Six degradation intermediates were identified using HPLC/MS/MS, and photocatalytic degradation mechanism of lamivudine was proposed by utilizing collective information from both experimental results of HPLC/MS/MS, ion chromatography as well as total organic carbon and theoretical data of frontier electron densities and point charges. © 2011 Elsevier B.V. |
关键词 | Computer viruses Dispersions Efficiency Enzyme kinetics Ion chromatography Kinetics Mechanisms Organic carbon Oxide minerals Surface properties Titanium dioxide Central composite designs Degradation efficiency Degradation intermediates Frontier electron densities Lamivudine Photo catalytic degradation Photocatalytic degradation mechanism Response surface methodology |
DOI | 10.1016/j.jhazmat.2011.09.077 |
收录类别 | EI ; SCIE |
语种 | 英语 |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
WOS类目 | Engineering, Environmental ; Environmental Sciences |
WOS记录号 | WOS:000298200400029 |
出版者 | Elsevier B.V., Netherlands |
EI入藏号 | 20114814568627 |
EI主题词 | Degradation |
EI分类号 | 482.2 Minerals ; 601.3 Mechanisms ; 801 Chemistry ; 802.2 Chemical Reactions ; 804.1 Organic Compounds ; 804.2 Inorganic Compounds ; 913.1 Production Engineering ; 931 Classical Physics ; Quantum Theory ; Relativity ; 951 Materials Science |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/150278 |
专题 | 教务处(创新创业学院) |
通讯作者 | An, Taicheng |
作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China; 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resources Utilizat & P, Guangzhou 510640, Guangdong, Peoples R China; 3.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China; 4.Jinan Univ, Inst Hydrobiol, Guangzhou 510632, Guangdong, Peoples R China; 5.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | An, Taicheng,An, Jibin,Yang, Hai,et al. Photocatalytic degradation kinetics and mechanism of antivirus drug-lamivudine in TiO2 dispersion[J]. Journal of Hazardous Materials,2011,197:229-236. |
APA | An, Taicheng,An, Jibin,Yang, Hai,Li, Guiying,Feng, Huixia,&Nie, Xiangping.(2011).Photocatalytic degradation kinetics and mechanism of antivirus drug-lamivudine in TiO2 dispersion.Journal of Hazardous Materials,197,229-236. |
MLA | An, Taicheng,et al."Photocatalytic degradation kinetics and mechanism of antivirus drug-lamivudine in TiO2 dispersion".Journal of Hazardous Materials 197(2011):229-236. |
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