2006
DOI: 10.1021/ie0505763
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Photocatalytic Process for CO2 Emission Reduction from Industrial Flue Gas Streams

Abstract: At present, carbon dioxide (CO 2 ) is the largest contributor among greenhouse gases. This article addresses the potential application of photocatalysis to the reduction of CO 2 emissions from industrial flue gas streams. Not only does this process remove CO 2 , but it can also convert CO 2 into other chemical commodities such as methane, methanol, and ethanol. In addition, the photocatalytic process can consume less energy than conventional methods by harnessing solar energy. Given these advantages, photocata… Show more

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Cited by 312 publications
(224 citation statements)
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“…The possible reactions that can occur in the reduction of CO 2 in aqueous medium are shown in Scheme 1 (Inoue et al, 1979;Sutin et al, 1997;Fujita 1999;Usubharatana et al, 2006;Indrakanti et al, 2009). It is apparent from Scheme 1 that CO 2 photoreduction involves multiple steps.…”
Section: Typical Mechanismsmentioning
confidence: 99%
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“…The possible reactions that can occur in the reduction of CO 2 in aqueous medium are shown in Scheme 1 (Inoue et al, 1979;Sutin et al, 1997;Fujita 1999;Usubharatana et al, 2006;Indrakanti et al, 2009). It is apparent from Scheme 1 that CO 2 photoreduction involves multiple steps.…”
Section: Typical Mechanismsmentioning
confidence: 99%
“…In the case of doping or coating metals, this can be explained by considering the metal dopants/islands as sinks for the excited TiO 2 electrons (Usubharatana et al, 2006). When the excited electron is injected into the conduction band of the TiO 2 and starts to travel across the TiO 2 crystal lattice, it becomes trapped by the metal dopants because of the relative lower energy state that it can obtain if it goes to the metal dopant.…”
Section: Tio 2 -Related Photocatalystsmentioning
confidence: 99%
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“…Photocatalytic reactions over TiO 2 play an essential role in many applications, such as the degradation of organic pollutants, water splitting, CO 2 reduction and solar cells [1,2]. A photocatalytic reaction is initiated by electron-hole pair generation upon band gap excitation.…”
Section: Introductionmentioning
confidence: 99%
“…A widely accepted method that is used to slow down the e --h + recombination rate is to deposit metal nanoparticles (NPs), such as platinum, copper, or iron, on semiconductor surfaces (Tseng et al, 2004;Usubharatana et al, 2006;Indrakanti et al, 2009;Wang et al, 2012a). These metal NPs serve as electron sinks and, thus, separate the e --h + pair to enhance the photoreduction efficiency.…”
mentioning
confidence: 99%