Photoelectrocatalytic Performance of Benzoic Acid on TiO2 Nanotube Array Electrodes
The photoelectrocatalytic performance of benzoic acid on TiO2 nanotube array electrodes was investigated. A thin-cell was used to discuss the effect of the bias voltage, illumination intensity, and electrolyte concentration on the photoelectrocatalytic degradation efficiency of benzoic acid. The pho...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
|
| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/567426 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832552835908108288 |
|---|---|
| author | Hongchong Chen Jinhua Li Quanpeng Chen Di Li Baoxue Zhou |
| author_facet | Hongchong Chen Jinhua Li Quanpeng Chen Di Li Baoxue Zhou |
| author_sort | Hongchong Chen |
| collection | DOAJ |
| description | The photoelectrocatalytic performance of benzoic acid on TiO2 nanotube array electrodes was investigated. A thin-cell was used to discuss the effect of the bias voltage, illumination intensity, and electrolyte concentration on the photoelectrocatalytic degradation efficiency of benzoic acid. The photogenerated current-time (I-t) profiles were found to be related to the adsorption and the degradation process. The relationship between the initial concentration and the photocurrent peaks (I0ph) fits the Langmuir-type adsorption model, thus confirming that the adsorption of benzoic acid on TiO2 nanotube arrays (TNAs) was single monolayer adsorption. At low concentrations, the I-t profiles simply decay after the initial transient peak due to the sufficient holes on the TNAs which would oxidize the benzoic acid quickly. However, the I-t profiles varied with increasing benzoic acid concentrations because the rate of diffusion in the bulk solution and the degradation of the intermediate products affect the photoelectrocatalysis on the electrode surface. |
| format | Article |
| id | doaj-art-300f32bd70644966bcd3d2e34f303233 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-300f32bd70644966bcd3d2e34f3032332025-02-03T05:57:33ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/567426567426Photoelectrocatalytic Performance of Benzoic Acid on TiO2 Nanotube Array ElectrodesHongchong Chen0Jinhua Li1Quanpeng Chen2Di Li3Baoxue Zhou4School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaThe photoelectrocatalytic performance of benzoic acid on TiO2 nanotube array electrodes was investigated. A thin-cell was used to discuss the effect of the bias voltage, illumination intensity, and electrolyte concentration on the photoelectrocatalytic degradation efficiency of benzoic acid. The photogenerated current-time (I-t) profiles were found to be related to the adsorption and the degradation process. The relationship between the initial concentration and the photocurrent peaks (I0ph) fits the Langmuir-type adsorption model, thus confirming that the adsorption of benzoic acid on TiO2 nanotube arrays (TNAs) was single monolayer adsorption. At low concentrations, the I-t profiles simply decay after the initial transient peak due to the sufficient holes on the TNAs which would oxidize the benzoic acid quickly. However, the I-t profiles varied with increasing benzoic acid concentrations because the rate of diffusion in the bulk solution and the degradation of the intermediate products affect the photoelectrocatalysis on the electrode surface.http://dx.doi.org/10.1155/2013/567426 |
| spellingShingle | Hongchong Chen Jinhua Li Quanpeng Chen Di Li Baoxue Zhou Photoelectrocatalytic Performance of Benzoic Acid on TiO2 Nanotube Array Electrodes International Journal of Photoenergy |
| title | Photoelectrocatalytic Performance of Benzoic Acid on TiO2 Nanotube Array Electrodes |
| title_full | Photoelectrocatalytic Performance of Benzoic Acid on TiO2 Nanotube Array Electrodes |
| title_fullStr | Photoelectrocatalytic Performance of Benzoic Acid on TiO2 Nanotube Array Electrodes |
| title_full_unstemmed | Photoelectrocatalytic Performance of Benzoic Acid on TiO2 Nanotube Array Electrodes |
| title_short | Photoelectrocatalytic Performance of Benzoic Acid on TiO2 Nanotube Array Electrodes |
| title_sort | photoelectrocatalytic performance of benzoic acid on tio2 nanotube array electrodes |
| url | http://dx.doi.org/10.1155/2013/567426 |
| work_keys_str_mv | AT hongchongchen photoelectrocatalyticperformanceofbenzoicacidontio2nanotubearrayelectrodes AT jinhuali photoelectrocatalyticperformanceofbenzoicacidontio2nanotubearrayelectrodes AT quanpengchen photoelectrocatalyticperformanceofbenzoicacidontio2nanotubearrayelectrodes AT dili photoelectrocatalyticperformanceofbenzoicacidontio2nanotubearrayelectrodes AT baoxuezhou photoelectrocatalyticperformanceofbenzoicacidontio2nanotubearrayelectrodes |