Photoelectrochemical hydrogen production by Halobacterium halobium

Sediroglu, V
Yucel, M
Gunduz, L
Turker, L
Aydemir, A
Eroğlu, İnci
A bio-photoelectrochemical reactor has been designed and constructed in order to understand the biocatalytic effect of Halobacterium halobium on the electrochemical production of hydrogen in salt solution. Photoelectrochemical studies were carried out at 25 degrees C in 20 % NaCl solution containing 0.68 mu M bacteriorhodopsin. The reactor was illuminated by a 1000 W projector lamp which was 50 cm apart.


Photoproduction of hydrogen from sugar refinery wastewater by Rhodobacter sphaeroides OU 001
Yetis, M; Gündüz, Ufuk; Eroglu, I; Yucel, M; Turker, L (2000-11-01)
Pretreated sugar refinery wastewater (SRWW) was used for the production of hydrogen by Rhodobacter sphaeroides O.U.001 in a 0.4 1 column photobioreactor. Hydrogen was produced at a rate of 0.001 1 hydrogen/h/l culture in 20% dilution of SRWW. To adjust the carbon concentration to 70 mM and nitrogen concentration to 2 mM, sucrose or l-malic acid was added as carbon source and sodium glutamate was added as nitrogen source to the 20% dilution of SRWW. By these adjustments, hydrogen production rate was increase...
Photofermentative hydrogen production from molasses in tubular photobioreactor with pH control
Oflaz, Fatma Betül; Koku, Harun; Department of Chemical Engineering (2019)
Biological hydrogen production has the potential to supply hydrogen from various wastes as feedstock and operation under ambient conditions. In order to obtain cost effective production, photobioreactors (PBRs) that can operate for long durations while utilizing waste are necessary. Two primary issues limiting the duration are decrease in pH and the non-optimal C/N ratio. The main aim of this study was to construct and operate a pH control system for a pilot scale photobioreactor (20 L) to achieve prolonged...
Photoelectrochemical cell using dye sensitized zinc oxide nanowires grown on carbon fibers
Ünalan, Hüsnü Emrah; Suzuki, Kenichi; Dalal, Sharvari; Hiralal, Pritesh; Matsumoto, Hidetoshi; Imaizumi, Shinji; Minagawa, Mie; Tanioka, Akihiko; Flewitt, Andrew J.; Milne, William I.; Amaratunga, Gehan A. J. (AIP Publishing, 2008-09-29)
Zinc oxide (ZnO) nanowires (NWs) grown on carbon fibers using a vapor transport and condensation approach are used as the cathode of a photoelectrochemical cell. The carbon fibers were obtained by electrospray deposition and take the form of a flexible carbon fabric. The ZnO NW on carbon fiber anode is combined with a "black dye" photoabsorber, an electrolyte, and a platinum (Pt) counterelectrode to complete the cell. The results show that ZnO NW and carbon fibers can be used for photoinduced charge separat...
Photocatalytic Conversion of Nitric Oxide on Titanium Dioxide: Cryotrapping of Reaction Products for Online Monitoring by Mass Spectrometry
Lu, Weigang; Olaitan, Abayomi D.; Brantley, Matthew R.; Zekavat, Behrooz; Altunöz Erdoğan, Deniz; Ozensoy, Emrah; Solouki, Touradj (American Chemical Society (ACS), 2016-04-21)
Details of coupling a catalytic reaction chamber to a liquid nitrogen-cooled cryofocuser/triple quadrupole mass spectrometer for online monitoring of nitric oxide (NO) photocatalytic reaction products are presented. Cryogenic trapping of catalytic reaction products, via cryofocusing prior to mass spectrometry analysis, allows unambiguous characterization of nitrous oxide (N2O) and nitrogen oxide species (i.e., NO and nitrogen dioxide (NO2)) at low concentrations. Results are presented, indicating that the m...
Photoproduction of hydrogen by Rhodobacter capsulatus from thermophilic fermentation effluent
Uyar, Basar; Schumacher, Matthias; Gebicki, Jakub; Modigell, Michael (2009-08-01)
Rhodobacter capsulatus was used for the phototrophic hydrogen production on effluent solution derived from the thermophilic fermentation of Miscanthus hydrolysate by Thermotoga neapolitana. Pretreatments such as centrifugation, dilution, buffer addition, pH adjustment and sterilization were suggested for the effluent before being fed to the photofermentation. Batch-wise experiments showed that R. capsulatus grows and produces hydrogen on the pretreated effluent solution. Moreover, it was found that the hydr...
Citation Formats
V. Sediroglu, M. Yucel, L. Gunduz, L. Turker, A. Aydemir, and İ. Eroğlu, “Photoelectrochemical hydrogen production by Halobacterium halobium,” 1996, Accessed: 00, 2020. [Online]. Available: