Preparation of ZnO/SnO2 Composite Nanometer Photocatalyst and Photocatalytic Treatment of Marine Diesel Pollution

1st International Workshop on Materials Science and Mechanical Engineering

材料科学;机械制造

Zhang, J.^1 ; Yu, X.C.^1 ; Nie, Z.W.^1 ; Guo, M.C.^1 ; Liu, J.H.^1 ; Wang, L.P.^1

College of Ocean Technique and Environment Department, Dalian Ocean University, China^1

关键词: Average grain size;    Chemical precipitation method;    Degradation efficiency;    Degradation rate;    Initial concentration;    Marine diesel;    Marine diesel oil;    Photocatalytic treatment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/281/1/012015/pdf
DOI  :  10.1088/1757-899X/281/1/012015

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The ZnO/SnO2composite nanophotocatalyst studied in this paper was prepared by a chemical precipitation method, which were characterized by XRD and SEM. The results show that the prepared samples were rutile SnO2particles and the average grain size is 8.41 nm. In this paper, the factors for the degradation efficiency of marine diesel oil degraded by ZnO/SnO2composite nanophotocatalyst are the catalysts' doping ratio, the initial concentration of oil, the pH value of seawater, the dosage of catalyst and the dosage of hydrogen peroxide. The results show that the ZnO/SnO2composite nanophotocatalyst can effectively degrade seawater diesel oil under UV light. When the doping ratio of ZnO and SnO2is 0.35, the reaction time is 2.5 hours, the pH value of seawater with oil is 7, The concentration of diesel oil is 0.1g/L, the dosage of catalyst is 0.3g/L and the dosage of hydrogen peroxide is 0.1 g/L, the highest degradation rate is 91.54%.