Photoelectrochemical hydrogen production from water/methanol decomposition using Ag/TiO2 nanocomposite thin films |
| |
| Authors: | Naser Alenzi Wei-Ssu Liao Paul S Cremer Viviana Sanchez-Torres Thomas K Wood Christine Ehlig-Economides Zhengdong Cheng |
| |
| Affiliation: | 1. Harold Vance Department of Petroleum Engineering, Texas A&M University, College Station, TX 77843, USA;2. Department of Chemistry, Texas A&M University, College Station, TX 77843, USA;3. Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA;4. Department of Biology, Texas A & M University, College Station, TX 77843-3258, USA;5. Zachry Department of Civil and Environmental Engineering, Texas A & M University, College Station, TX 77843 3136, USA |
| |
| Abstract: | Though less frequently studied for solar-hydrogen production, films are more convenient to use than powders and can be easily recycled. Anatase TiO2 films decorated with Ag nanoparticles are synthesized by a rapid, simple, and inexpensive method. They are used to cleave water to produce H2 under UV light in the presence of methanol as a hole scavenger. A simple and sensitive method is established here to monitor the time course of hydrogen production for ultralow amounts of TiO2. The average hydrogen production rate of Ag/TiO2 anatase films is 147.9 ± 35.5 μmol/h/g. Without silver, it decreases dramatically to 4.65 ± 0.39 μmol/h/g for anatase TiO2 films and to 0.46 ± 0.66 μmol/h/g for amorphous TiO2 films fabricated at room temperature. Our method can be used as a high through-put screening process in search of high efficiency heterogeneous photocatalysts for solar-hydrogen production from water-splitting. |
| |
| Keywords: | Photoelectrochemical hydrogen production Ag/TiO2 nanocomposite thin film Solar energy Water-splitting Nanotechnology |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
