Study on Preparation and Photocatalytic Properties of La-Cu2O/MgO Composites

4th Annual International Workshop on Materials Science and Engineering

Yuan, Chunhua^1

College of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology, Baotou

014010, China^1

关键词: Catalytic effects;    Composite photocatalysts;    Hydrazine hydrate;    Lanthanum nitrates;    Methyl orange solution;    Photocatalytic property;    Preparation method;    Tungsten filaments;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/381/1/012059/pdf
DOI  :  10.1088/1757-899X/381/1/012059

来源: IOP

【 摘 要 】

This paper studied the preparation methods of La-doped Cu2O/MgO composites. The method used MgO as a carrier, La as a sensitizer and hydrazine hydrate as a reducing agent. The photocatalytic properties of the composite were studied with methyl orange solution as a probe. The La-Cu2O/MgO composite photocatalyst with the best catalytic effect was prepared in the solution of 50mL 0.1mol/L Cu(NO3)2•3H2O, adding 10mL 1mol/L NaOH, reaction time 3 hours, hydrazine hydrate dosage 5mL, carrier Magnesium Oxide 1g and lanthanum nitrate doping amount 4%. Under the 40W tungsten filament light, the dosage of La-Cu2O/MgO composite was 0.2g/50mL, and the degradation rate of methyl orange solution with the concentration of 10mg/L may reach more than 90%.