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Volumn 16, Issue 5, 2014, Pages 1788-1797

Revisiting the fundamental physical chemistry in heterogeneous photocatalysis: Its thermodynamics and kinetics

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EID: 84891764859     PISSN: 14639076     EISSN: None     Source Type: Journal    
DOI: 10.1039/c3cp53653j     Document Type: Review
Times cited : (151)

References (44)
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    • B. Ohtani, in Solar Photocatalysis, ed., H. Suib, Elsevier, Amsterdam, 2013, 121-144
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  • 7
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    • in, ed. R. van Eldik and G. Stochel, Elsevier, Amsterdam, 63, 395-430 The word "heterogeneous" in the term "heterogeneous photocatalysis" means that the systems are heterogeneous, i.e., solid photocatalysts are in gas or liquid phases, i.e., "heterogeneous" indicates the reaction conditions. Therefore, the expression "heterogeneous photocatalyst" does not make sense The term "semiconductor photocatalysis" is also substituted for the term "heterogeneous photocatalysis". Since semiconductors are always solid, the term "semiconductor photocatalysis" indicates almost the same phenomenon. However, the electronic structure of photocatalysts shown in Fig. 1 is representative not only of semiconductors but also insulators. The author thinks it is necessary to clarify how semiconducting properties, e.g., the presence of donor/acceptor levels, of photocatalysts influence their photocatalytic activity
    • B. Ohtani, in Advances in Inorganic Chemistry, ed., R. van Eldik, and, G. Stochel, Elsevier, Amsterdam, 2011, vol. 63, pp. 395-430
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    • Ohtani, B.1
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    • Many researchers in the field of photocatalysis may have examined the properties and photocatalytic activities of those exceptional mixed metal oxides, such as chromium niobate or chromium titanate, possessing relatively narrow band gaps and keeping a more cathodic CB-bottom position. However, unfortunately, those metal oxides seemed to be stable only at a limited pH as was discussed in the paper
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    • One of the authors, Professor Fujishima, showed almost the same potential-current curves in his account paper with a caption showing that an electrolyte solution contained potassium chloride at pH 4.7 buffered by acetate
    • A. Fujishima K. Honda S. Kikuchi Kogyo Kagaku Zasshi 1969 72 108 113
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    • (in Japanese) Professor Fujishima recently told this mistake is due to the lack of interpretation of this figure (ref. 19)
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    • The connection between titania and platinum is believed to be ohmic, and no barrier is expected between them, as shown in Fig. 4(c) and (d) Schottky barrier is defined as the potential barrier created between an n-SC and a metal with a work function lower (more anodic) than the Fermi level of the n-SC. A similar barrier is also made when n-SC is immersed in an electrolyte solution For example, our papers
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    • This is called "linear free-energy relationship" More than 800 papers, published since 1955, are found through Web-of-Science search using keywords "photocataly* AND Langmuir-Hinshelwood". Considering that more than 40000 papers are found with a keyword "photocataly* ", approximately one fifth of papers on photocatalysis have discussed the Langmuir-Hinshelwood mechanism. Papers discussing photocatalytic reaction kinetics with a Langmuir-Hinshelwood mechanism in the early stage of photocatalysis studies are
    • E. Hosono S. Fujihara H. Lmai I. Honma I. Masaki H. S. Zhou ACS Nano 2007 1 273 278
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    • The present author's comment on the use of the term "Langmuir- Hinshelwood mechanism", which is originally a mechanism of catalytic reactions of two kinds of surface-adsorbed substrates in a Langmuirian fashion and is used to differentiate from the Rideal-Eley mechanism, has been published in his recent critical review (ref. 3)
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    • Although there was no description about whether Φ shows quantum efficiency or apparent quantum efficiency calculated on the basis of absorbed and incident photons, respectively, it seems to be an apparent one, considering that there was also no description of the wavelength of irradiation and of the photoabsorption efficiency by single crystals
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    • unpublished results For example, the author's papers on photocatalysis through photoexcitation of organic compounds attached on solid surfaces
    • T. Torimoto, Y. Aburakawa, Y. Kawahara, S. Ikeda and B. Ohtani, unpublished results
    • Torimoto, T.1    Aburakawa, Y.2    Kawahara, Y.3    Ikeda, S.4    Ohtani, B.5
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    • in, ed. A. Fujishima, Wiley-VCH, submitted For the phenomenon of "photoinduced superhydrophilicity", an action-spectrum analysis has suggested that the chemical species that absorbs light to make a water contact angle below 10 degrees is not titania
    • B. Ohtani, in Self-cleaning Surfaces and Materials, ed., A. Fujishima, Wiley-VCH, 2014, submitted
    • (2014) Self-cleaning Surfaces and Materials
    • Ohtani, B.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.