Photocatalytic Degradation of NH3-N in Aquaculture Wastewater by Using CaF2(Tm3+)/TiO2 under UV Light

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

2018

Abstract

The TiO2 doped with CaF2(Tm3+) photocatalyst is employed to degrade NH3-N in aquaculture wastewater under UV light. The photocatalyst was prepared by Sol-gel method and characterized by SEM, EDS and XRD analysis. The effects of doping ratio of CaF2(Tm3+), dosage, initial concentration of NH3-N, pH value, concentration of H2O2 and illumination time on NH3-N removal were investigated. The optimal conditions for the degradation of NH3-N were as follows: the catalyst doping ratio was 15%, the dosage was 0.2 g/L, the initial concentration of ammonia nitrogen was 80 mg/L, the concentration of hydrogen peroxide was 0.3 g/L, the pH value was 10 and the UV light irradiation time was 3 h. In this case, the removal rate of NH3-N can reach 68.34%. The results show that CaF2(Tm3+)/TiO2 photocatalyst can effectively remove NH3-N in aquaculture wastewater under UV light.

Paper Citation

in Harvard Style

Nie Z., Yu X., Liu J., Wang L. and Guo M. (2018). Photocatalytic Degradation of NH3-N in Aquaculture Wastewater by Using CaF2(Tm3+)/TiO2 under UV Light.In Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE, ISBN 978-989-758-344-5, pages 331-340. DOI: 10.5220/0007560603310340

in Bibtex Style

@conference{iwemse18,
author={Z. W. Nie and X. C. Yu and J. H. Liu and L. P. Wang and M. C. Guo},
title={Photocatalytic Degradation of NH3-N in Aquaculture Wastewater by Using CaF2(Tm3+)/TiO2 under UV Light},
booktitle={Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE,},
year={2018},
pages={331-340},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007560603310340},
isbn={978-989-758-344-5},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environmental Management, Science and Engineering - Volume 1: IWEMSE,
TI - Photocatalytic Degradation of NH3-N in Aquaculture Wastewater by Using CaF2(Tm3+)/TiO2 under UV Light
SN - 978-989-758-344-5
AU - Nie Z.
AU - Yu X.
AU - Liu J.
AU - Wang L.
AU - Guo M.
PY - 2018
SP - 331
EP - 340
DO - 10.5220/0007560603310340