TY - JOUR

T1 - Transient absorption studies on nanostructured materials and composites: Towards the development of new photocatalytic systems

AU - Haisch, C.

AU - Nunes, B.N.

AU - Schneider, J.

AU - Bahnemann, D.

AU - Patrocinio, A.O.T.

N1 - Funding information: Acknowledgments: This work was supported by Fundacão de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) and the german Federal Ministry of Education and Research (BMBF). A.O.T.P. is also thankful to Alexander von Humboldt Foundation for the fellowship in Germany.

PY - 2018/8/28

Y1 - 2018/8/28

N2 - Being part of the development of environmentally clean and safe sustainable technologies photocatalysis is attracting increasing attention. During the last decade, great attention has been paid to the synthesis of different photocatalysts possessing high photocatalytic activity, whereas fundamental studies concerning the underlying photocatalytic processes have rarely been executed. The knowledge of these processes is, however, of utmost importance for the understanding of the reaction mechanism and thus for a better design of photocatalytic systems. The transient absorption spectroscopy (TAS) is one widely used method to study such fundamental processes. The present review paper focuses on the application of TAS in the UV-Vis-IR regions to investigate the charge carrier dynamics in ultrafast and nano-to-millisecond time regime. Hereby, the photo induced processes occurring in different materials will be discussed. Moreover, further attention is also paid to nanocomposite-based systems, in which different materials are used concomitantly to promote more efficient photocatalytic processes.

AB - Being part of the development of environmentally clean and safe sustainable technologies photocatalysis is attracting increasing attention. During the last decade, great attention has been paid to the synthesis of different photocatalysts possessing high photocatalytic activity, whereas fundamental studies concerning the underlying photocatalytic processes have rarely been executed. The knowledge of these processes is, however, of utmost importance for the understanding of the reaction mechanism and thus for a better design of photocatalytic systems. The transient absorption spectroscopy (TAS) is one widely used method to study such fundamental processes. The present review paper focuses on the application of TAS in the UV-Vis-IR regions to investigate the charge carrier dynamics in ultrafast and nano-to-millisecond time regime. Hereby, the photo induced processes occurring in different materials will be discussed. Moreover, further attention is also paid to nanocomposite-based systems, in which different materials are used concomitantly to promote more efficient photocatalytic processes.

KW - charge carrier kinetics

KW - photocatalysis

KW - transient absorption spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=85049205196&partnerID=8YFLogxK

U2 - 10.1515/zpch-2018-1137

DO - 10.1515/zpch-2018-1137

M3 - Article

VL - 232

SP - 1469

EP - 1493

JO - Zeitschrift fur Physikalische Chemie

JF - Zeitschrift fur Physikalische Chemie

SN - 0044-3336

IS - 9-11

ER -