Fabrication of translated metal doped TiO2 composites and its photocatalytic degradation toward the ammonia nitrogen compounds in farm wastewater

EasyChair Preprint no. 1577

Abstract

TiO₂ and TiO₂ doping translated metal composites, including Cu, Co, Ni, Ag, Au elements, were prepared by sol-gel method by using tetrabutyl titanate and different metal salts as raw materials. The TiO₂ and its composites were characterized by means of UV-vis, FTIR, and fluorescence spectrometry, etc. Furtherly, photocatalytic degradation properties of TiO₂, Cu/TiO₂, Co/TiO₂, Ni/TiO₂, Ag/TiO₂ and Au/TiO₂ on ammonia-nitrogen compounds in farm wastewater were studied under simulated sunlight. The results showed that the translated metal doped TiO₂ composites had higher photocatalytic degradation rate than pure TiO₂, among which, the degradation rate of Ag/TiO₂, Au/TiO₂ and Ni/TiO₂ reached to 30.3%, 29.9%, and 26.9%, respectively, and those of Cu/TiO₂ and Co/TiO₂ were 25.0% and 26.3%, respectively. Photocatalytic degradation conditions of ammonia nitrogen compounds were investigated by using Ag/TiO₂ as photocatalyst. It was found that the degradation rate of ammonia nitrogen compounds could reach 37.5% when the initial concentration was 0.07 g/L, the time was 180 min, and the dosage of catalyst was 0.10%. Additionally, in comparison with natural sun light as the light source, the degradation efficiency of the catalyst was still reach 32.6%, which indicated the perfect application prospect in the treatment of farm wastewater.

Keyphrases: Ammonia nitrogen compounds, Farm wastewater, Photocatalytic, TiO2

@Booklet{EasyChair:1577,
  author = {Qijie Xu and Hui Yin and Yang Zhang and Gaofeng Jin and Weiwei He and Ning Zhang},
  title = {Fabrication of translated metal doped TiO2 composites and its photocatalytic degradation toward the ammonia nitrogen compounds in farm wastewater},
  howpublished = {EasyChair Preprint no. 1577},

  year = {EasyChair, 2019}}