CO2 utilisation by photocatalytic conversion to methane and methanol

In this paper we intend to give a broad overview of natural and artificial photosynthesis systems. We point out seven orders of magnitude difference of the rates of water splitting between natural and state of the art artificial photosynthesis in favour of natural photosynthesis. We reviewed the open literature for photocatalytic water splitting, CO2 reduction and suggested routes for improvements in the low yields.


Coupled nutrient removal from the wastewater and CO2 biofixation from the flue gas of iron and steel manufacturing
Cayli, Direnis; Uludag-Demirer, Sibel; Demirer, Göksel Niyazi (Inderscience Publishers, 2018-01-01)
CO2 mitigation through photosynthesis has attracted attention as an alternative strategy over chemical methods because it is less costly and energy-consuming. When the microalgae are fed with wastewaters containing high nitrogen and phosphorus, they remove nitrogen and phosphorus from the wastewater. Moreover, the harvested biomass from microalgal reactors constitutes a raw material for the production of different high-value chemicals and bio-fuels. This study investigated the coupled removal of CO2 from th...
Geographic information systems (GIS) for the determination of inundation maps of Lake Mogan, Turkey
Merzi, N; Aktas, MT (Informa UK Limited, 2000-09-01)
The use of geographic information systems (GIS) allows for a very efficient analysis of spatial hydrologic data for water resources projects especially for water control studies. rn this respect, flood hydrographs for Mogan basin, Turkey for different durations and return periods are determined by using Soil Conservation Service (SCS) method. The basic parameter of the SCS method, curve number (CN), is evaluated by using GIS employing digital land use and hydrologic soil group data derived from analog maps....
CO2 emissions vs. CO2 responsibility: An input-output approach for the Turkish economy
Tunç, Gül İpek; Akbostancı Özkazanç, Elif (Elsevier BV, 2007-02-01)
Recently, global warming (greenhouse effect) and its effects have become one of the hottest topics in the world agenda. There have been several international attempts to reduce the negative effects of global warming. The Kyoto Protocol can be cited as the most important agreement which tries to limit the countries' emissions within a time horizon. For this reason, it becomes important to calculate the greenhouse gas emissions of countries. The aim of this study is to estimate the amount Of CO2-the most impo...
Degradation of decabromodiphenyl ether (BDE-209) in microcosms mimicking sediment environment subjected to comparative bioremediation strategies
Demirtepe, Hale; İmamoğlu, İpek (Elsevier BV, 2019-03-01)
The aim of this study was to examine bioremediation strategies for BDE-209 contaminated sediments. Sediment microcosms were established to observe anaerobic debromination of BDE-209 under conditions representing three bioremediadon strategies: biostimulation, bioaugmentation and natural attenuation. To simulate biostimulation, a defined mineral medium containing both a carbon source (sodium formate) and electron donor (ethanol) was added into sediments. Bioaugmentation was established by enrichment of the s...
CO2 hydrogenation to methanol and dimethyl ether at atmospheric pressure using Cu-Ho-Ga/gamma-Al2O3 and Cu-Ho-Ga/ZSM-5: Experimental study and thermodynamic analysis
Tuygun, Cansu; İpek Torun, Bahar (2021-01-01)
CO2 valorization through chemical reactions attracts significant attention due to the mitigation of greenhouse gas effects. This article covers the catalytic hydrogenation of CO2 to methanol and dimethyl ether using Cu-Ho-Ga containing ZSM-5 and gamma-Al2O3 at atmospheric pressure and at temperatures of 210 degrees C and 260 degrees C using a CO2:H-2 feed ratio of 1:3 and 1:9. In addition, the thermodynamic limitations of methanol and DME formation from CO2 was investigated at a temperature range of 100-400...
Citation Formats
D. Üner and B. İpek Torun, “CO2 utilisation by photocatalytic conversion to methane and methanol,” INTERNATIONAL JOURNAL OF GLOBAL WARMING, pp. 142–162, 2011, Accessed: 00, 2020. [Online]. Available: