what are the drawbacks of artificial photosynthesis?
Answers
Explanation:
major disadvantage of Artificial Photosynthesis is the Cost it is more efficient than photosynthesis inplant but if production of biofuel in plant algae turn out in more cost efficient it might have a advantage in a short run
Answer:
Explanation:
Artificial photosynthesis is a chemical process that biomimics the natural process of photosynthesis to convert sunlight, water, and carbon dioxide into carbohydrates and oxygen. The term artificial photosynthesis is commonly used to refer to any scheme for capturing and storing the energy from sunlight in the chemical bonds of a fuel (a solar fuel). Photocatalytic water splitting converts water into hydrogen and oxygen and is a major research topic of artificial photosynthesis. Light-driven carbon dioxide reduction is another process studied that replicates natural carbon fixation.
Research of this topic includes the design and assembly of devices for the direct production of solar fuels, photoelectrochemistry and its application in fuel cells, and the engineering of enzymes and photoautotrophic microorganisms for microbial biofuel and biohydrogen production from sunlight.
Disadvantages include:
Materials used for artificial photosynthesis often corrode in water, so they may be less stable than photovoltaics over long periods of time. Most hydrogen catalysts are very sensitive to oxygen, being inactivated or degraded in its presence; also, photodamage may occur over time.[9][76]
The cost is not (yet) advantageous enough to compete with fossil fuels as a commercially viable source of energy.[3]
A concern usually addressed in catalyst design is efficiency, in particular how much of the incident light can be used in a system in practice. This is comparable with photosynthetic efficiency, where light-to-chemical-energy conversion is measured. Photosynthetic organisms are able to collect about 50% of incident solar radiation, however the theoretical limit of photosynthetic efficiency is 4.6 and 6.0% for C3 and C4 plants respectively.[82] In reality, the efficiency of photosynthesis is much lower and is usually below 1%, with some exceptions such as sugarcane in tropical climate.[83] In contrast, the highest reported efficiency for artificial photosynthesis lab prototypes is 22.4%.[84] However, plants are efficient in using CO2 at atmospheric concentrations, something that artificial catalysts still cannot perform.[85]