Journal
APPLIED SURFACE SCIENCE
Volume 311, Issue -, Pages 851-857Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2014.05.195
Keywords
Ammonia; Photoelectrocatalysis; Oxidation; TiO2 nanotubes
Categories
Funding
- National Natural Science Foundation of China [21107010]
- China Postdoctoral Science Foundation [2012M520631]
- Committee of Science and Technology of Liaoning province of China [2011203005]
- Public Science and Technology Research Funds Projects of Ocean [2012418025]
- Open Foundation of Key Laboratory of Industrial Ecology and Environmental Engineering, China Ministry of Education [KLIEEE-13-04]
Ask authors/readers for more resources
The photoelectrocatalytic removal of ammonia in water was investigated using highly ordered TiO2 nanotube arrays as a photoanode. The results showed that the removal efficiency of total ammonia nitrogen (TAN) was closely related to the bias potential applied on TiO2 nanotube photoanode. Even without an adjustment of pH, over 99% of TAN (initial concentration 0.145 mM) was removed in 120 min with a bias potential of 1.0V. It is important to note that the TAN could be directly oxidized into N-2 and NO3--N without accumulation of an intermediate product of NO2--N. Meanwhile, the presence of the chemical scavengers revealed that photogenerated holes were the main oxidative species for the TAN oxidation. This work highlights the potential application of photoelectrocatalysis in the field of aqueous ammonia elimination. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
