Performance and Mechanism of UVImmobilized Cu-TiO2 System to Degradation Histidine
Joint Authors
Liu, Cheng
Wang, Jie
Chen, Wei
Sun, Zhehao
Cao, Zhen
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-07-25
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
More and more attention is paid to dissolved organic nitrogen (DON) and some specific categories of amino acids are considered to be the direct precursors of nitrogenous disinfection byproducts (N-DBPs).
Histidine was chosen to study the efficiency and mechanism of amino acid in UV/Cu-TiO2 system.
Moreover, the influences of pH, organics, and inorganic ion on the photocatalytic efficiency were also investigated.
The results show that the degradation rate of DON in the UV/Cu-TiO2 system was about 50% after 60 min, and it was much lower than that of histidine (72%), which indicated that a part of degraded histidine was oxidized to other N-containing organics.
The optimal pH value was 7.0 for the photodegradation of histidine, and the presence of organic compound and inorganic ion would decrease the degradation performance to some extent.
After 6 h irradiation, histidine was totally degraded into N H 4 + , and in the following 2 h, N H 4 + was oxidized to N O 3 - firstly and then N O 3 - was reduced to N2 and overflowed from water, which should be attributed to the doping of Cu in the TiO2 and provided a way to totally degrade the DON from the water.
American Psychological Association (APA)
Liu, Cheng& Wang, Jie& Chen, Wei& Sun, Zhehao& Cao, Zhen. 2016. Performance and Mechanism of UVImmobilized Cu-TiO2 System to Degradation Histidine. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1109470
Modern Language Association (MLA)
Liu, Cheng…[et al.]. Performance and Mechanism of UVImmobilized Cu-TiO2 System to Degradation Histidine. Journal of Nanomaterials No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1109470
American Medical Association (AMA)
Liu, Cheng& Wang, Jie& Chen, Wei& Sun, Zhehao& Cao, Zhen. Performance and Mechanism of UVImmobilized Cu-TiO2 System to Degradation Histidine. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1109470
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109470