2014
DOI: 10.1039/c4mh00031e
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Strategies for improving the efficiency of semiconductor metal oxide photocatalysis

Abstract: Photocatalysis is of significant interest for a wide range of applications related to energy and environment, such as pollutant degradation and hydrogen production. We will provide a review of the relationship between photocatalyst properties and its photocatalytic performance, as well as the strategies for the enhancement of photocatalytic activity, in particular under solar/ambient/visible illumination. Common applications of photocatalysts will then be reviewed, and we will summarize existing problems and a… Show more

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Cited by 331 publications
(152 citation statements)
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“…The holes are created in the valence band and the electron from the donor molecule can move to this hole. At the same time, an electron from the valence band can be transferred to the acceptor [9,10]. For this reason, the photo catalyst can take the interaction with the molecules at the material surface.…”
Section: Introductionmentioning
confidence: 99%
“…The holes are created in the valence band and the electron from the donor molecule can move to this hole. At the same time, an electron from the valence band can be transferred to the acceptor [9,10]. For this reason, the photo catalyst can take the interaction with the molecules at the material surface.…”
Section: Introductionmentioning
confidence: 99%
“…Based on the fundamental principles of semiconductor photocatalysis, the recombination between the electron and the hole is detrimentalt ot he efficiency of as emiconductor photocatalyst.F or higherp hotocatalytic efficiency, the electron-holep airs should be efficientlys eparated, and chargess hould be rapidlyt ransferred across the surface/interface to restrain the recombination. [9,10] In addition, the potential success of semiconducting photocatalysts relies on the efficient absorption of photon energy from sunlight to create active chargec arries, which are capable of implementing the redox processes towardshydrogen generation or degradation of pollutants. As uitable semiconductor should possesst he band gap of at least 1.23 eV,w hich equals to wavelengths of 1000 nm, to fulfil the redox potentials of the H + /H 2 and O 2 /H 2 Op airs.…”
Section: Introductionmentioning
confidence: 99%
“…Reproduced from Ref. [155] with permission from The Royal Society of Chemistry ferroelectric materials, and (iii) electrostatic potentials in the surfaces as a function of charged adsorbate present on them [156][157][158]. Directed charge transport can also be facilitated by the electronic band bending present in the surface or near surface region of the photocatalysts.…”
Section: Materials and Electronic Properties Required For Photocatalystsmentioning
confidence: 99%
“…On the other hand, dye adsorption onto the photocatalyst surface is normally considered the second most essential component for photocatalytic dye degradation. One of the major factors that determines the dye adsorption onto the photocatalysts surfaces is the surface area [155].…”
Section: Materials and Electronic Properties Required For Photocatalystsmentioning
confidence: 99%