Abstract
A biological photoinduced fermentation process provides an alternative to traditional hydrogen productions. In this study, biohydrogen production was investigated at near IR region coupled to a near-field enhancement by silica-core gold-shell nanoparticles (NPs) over a range of acetate concentrations (5–40 mM) and light intensities (11–160 W/m2). The kinetic data were modeled using modified Monod equations containing light intensity effects. The yields of H2 and CO2 produced per acetate were determined as 2.31 mol-H2/mol-Ac and 0.83 mol-CO2/mol-Ac and increased to 4.38 mmol-H2/mmol-Ma and 2.62 mmol-CO2/mmol-Ma when malate was used. Maximum increases in H2 and CO2 productions by 115% and 113% were observed by adding NPs without affecting the bacterial growth rates (6.1–8.2 mg-DCM/L/hour) while the highest hydrogen production rate was determined as 0.81 mmol/L/hour. Model simulations showed that the energy conversion efficiency increased with NPs concentration but decreased with the intensity. Complete hydrogenation application was demonstrated with toxic 2-chlorobiphenyl using Pd catalysts.
| Original language | English |
|---|---|
| Pages (from-to) | 7821-7835 |
| Number of pages | 15 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 46 |
| Issue number | 11 |
| DOIs | |
| State | Published - Feb 11 2021 |
Bibliographical note
Publisher Copyright:© 2020 Hydrogen Energy Publications LLC
Funding
This material is based upon work supported by the National Science Foundation under Grant No. CBET-1700091 , by Southern Company , and by NIH - NIEHS SRP ( P42ES007380 ). This work was performed in part at the U.K. Center for Nanoscale Science and Engineering and the U.K. Electron Microscopy Center, members of the National Nanotechnology Coordinated Infrastructure (NNCI), which is supported by the National Science Foundation ( ECCS-1542164 ). We also thank Dr. Hongyi Wan for providing technical support in hydrogenation experiments. This material is based upon work supported by the National Science Foundation under Grant No. CBET-1700091, by Southern Company, and by NIH-NIEHS SRP (P42ES007380). This work was performed in part at the U.K. Center for Nanoscale Science and Engineering and the U.K. Electron Microscopy Center, members of the National Nanotechnology Coordinated Infrastructure (NNCI), which is supported by the National Science Foundation (ECCS-1542164). We also thank Dr. Hongyi Wan for providing technical support in hydrogenation experiments.
| Funders | Funder number |
|---|---|
| NIH-NIEHS SRP | |
| U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China | CBET-1700091 |
| U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China | |
| National Institutes of Health (NIH) | |
| National Institutes of Health/National Institute of Environmental Health Sciences | P42ES007380 |
| National Institutes of Health/National Institute of Environmental Health Sciences | |
| Southern Company | |
| Center for Nanoscale Science and Technology | ECCS-1542164 |
| Center for Nanoscale Science and Technology |
Keywords
- Biohydrogen
- Carbon dioxide
- Near-IR
- Near-field enhancement
- Photobacteria
- Silica-core gold-shell nanoparticle
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology