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Auflistung nach Autor/in "2968ff15-76ef-43b9-b025-a287bc70343b"

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Ag(I) ions working as a hole-transfer mediator in photoelectrocatalytic water oxidation on WO3 film

Jeon, Tae Hwa; Monllor–Satoca, Damián; Moon, Gun–hee; Kim, Wooyul; Kim, Hyoung–il; Bahnemann, Detlef W.; Park, Hyunwoong; Choi, Wonyong ([London] : Nature Publishing Group UK, 2020)

Ag(I) is commonly employed as an electron scavenger to promote water oxidation. In addition to its straightforward role as an electron acceptor, Ag(I) can also capture holes to generate the high-valent silver species. ...
Ag+, Fe3+ and Zn2+-intercalated cadmium(II)-metal-organic frameworks for enhanced daylight photocatalysis

Surib, Nur Atiqah; Sim, Lan Ching; Leong, Kah Hon; Kuila, Aneek; Saravanan, Pichiah; Lo, Kong Mun; Ibrahim, Shaliza; Bahnemann, Detlef W.; Jang, Min (Cambridge : Royal Society of Chemistry, 2017)

Design and synthesis of multi-dimensional metal-organic frameworks are fascinating because MOFs possess intriguing structures and unique properties and exhibit potential applications in photocatalysis. In the present study, ...
Ag/Ag2O as a Co-Catalyst in TiO2 Photocatalysis: Effect of the Co-Catalyst/Photocatalyst Mass Ratio

Akel, Soukaina; Dillert, Ralf; Balayeva, Narmina O.; Boughaled, Redouan; Koch, Julian; El Azzouzi, Mohammed; Bahnemann, Detlef W. (Basel : MDPI, 2018)

Mixtures and composites of Ag/Ag2O and TiO2 (P25) with varying mass ratios of Ag/Ag2O were prepared, employing two methods. Mechanical mixtures (TM) were obtained by the sonication of a suspension containing TiO2 and ...
Analysis methods for meso- and macroporous silicon etching baths

Nehmann, Julia B.; Kajari-Schröder, Sarah; Bahnemann, Detlef W. (New York : Springer, 2012-07-17)

Analysis methods for electrochemical etching baths consisting of various concentrations of hydrofluoric acid (HF) and an additional organic surface wetting agent are presented. These electrolytes are used for the formation ...
Application of EPR Spectroscopy in TiO2 and Nb2O5 Photocatalysis

Al-Madanat, Osama; Nunes, Barbara Nascimento; AlSalka, Yamen; Hakki, Amer; Curti, Mariano; Patrocinio, Antonio Otavio T.; Bahnemann, Detlef W. (Basel : MDPI, 2021)

The interaction of light with semiconducting materials becomes the center of a wide range of technologies, such as photocatalysis. This technology has recently attracted increasing attention due to its prospective uses in ...
Boosting the H2 Production Efficiency via Photocatalytic Organic Reforming: The Role of Additional Hole Scavenging System

AlSalka, Yamen; Al-Madanat, Osama; Hakki, Amer; Bahnemann, Detlef W. (Basel : MDPI, 2021)

The simultaneous photocatalytic H2 evolution with environmental remediation over sem-iconducting metal oxides is a fascinating process for sustainable fuel production. However, most of the previously reported photocatalytic ...
Brookite versus anatase TiO2 photocatalysts: Phase transformations and photocatalytic activities

Kandiel, Tarek A.; Robben, Lars; Alkaim, Ayad; Bahnemann, Detlef W. (Cambridge : Royal Society of Chemistry, 2013)

Titanium dioxide nanoparticles consisting of pure anatase, anatase-rich, brookite-rich, and pure brookite modifications were synthesized and characterized by X-ray diffraction, field emission-scanning electron microscopy ...
Characterization of a highly efficient N-doped TiO 2 photocatalyst prepared via factorial design

Borges, Karen A.; Santos, Lidiaine M.; Paniago, Roberto M.; Barbosa Neto, Newton M.; Schneider, Jenny; Bahnemann, Detlef W.; Patrocinio, Antonio Otavio T.; Machado, Antonio Eduardo H. (Cambridge : Royal Society of Chemistry, 2016)

The preparation of titanium dioxide nanoparticles doped with nitrogen for application as a photocatalyst in the decomposition of azo dyes was optimized by factorial planning. Five variables were evaluated and the results ...
Charge carrier dynamics and photocatalytic behavior of TiO2 nanopowders submitted to hydrothermal or conventional heat treatment

Patrocinio, Antonio Otavio T.; Schneider, J.; Franca, M.D.; Santos, Lidiaine M.; Caixeta, B.P.; Machado, Antonio Eduardo H.; Bahnemann, Detlef W. (Cambridge : Royal Society of Chemistry, 2015-08-12)

The sol–gel technique followed by conventional (TiO2-1) and hydrothermal (TiO2-2) thermal treatment was employed to prepare TiO2-based photocatalysts with distinct particle sizes and crystalline structures. The as prepared ...
Charge Carriers in Commercial Photocatalysts : Fractal Kinetics and Effect of “Inert” Additives

Günnemann, Carsten; Curti, Mariano; Sieland, Fabian; Bahnemann, Detlef W. (Dordrecht : Springer Science + Business Media, 2021)

High photon conversion efficiencies and low-cost materials are crucial for implementing photocatalytic solutions in large scale applications. To improve the conversion efficiencies, knowledge on the lifetime and dynamics ...
Cold sprayed WO3 and TiO2 electrodes for photoelectrochemical water and methanol oxidation in renewable energy applications

Haisch, Christoph; Schneider, Jenny; Fleisch, Manuel; Gutzmann, Henning; Klassen, Thomas; Bahnemann, Detlef W. (Cambridge : Royal Society of Chemistry, 2017)

Films prepared by cold spray have potential applications as photoanodes in electrochemical water splitting and waste water purification. In the present study cold sprayed photoelectrodes produced with WO3 (active under ...
Comparative photocatalytic activity of sol–gel derived rare earth metal (La, Nd, Sm and Dy)-doped ZnO photocatalysts for degradation of dyes

Alam, Umair; Khan, Azam; Ali, Danish; Bahnemann, Detlef W.; Muneer, M. (Cambridge : Royal Society of Chemistry, 2018)

Rare earth metal doping into semiconductor oxides is considered to be an effective approach to enhance photocatalytic activity due to its ability to retard the electron–hole pair recombination upon excitation. Herein, we ...
A comparative study of microcystin-LR degradation by UV-a, solar and visible light irradiation using bare and C/N/S-modified titania

Khedr, Tamer M.; El-Sheikh, Said M.; Abdeldayem, Hany M.; Ismail, Adel A.; Kowalska, Ewa; Bahnemann, Detlef W. (Basel : MDPI AG, 2019)

In an endeavor to tackle environmental problems, the photodegradation of microcystin- LR (MC-LR), one of the most common and toxic cyanotoxins, produced by the cyanobacteria blooms, was examined using nanostructured TiO2 ...
Comparison of the photoelectrochemical oxidation of methanol on rutile TiO 2 (001) and (100) single crystal faces studied by intensity modulated photocurrent spectroscopy

Ahmed, Amira Y.; Oekermann, Torsten; Lindner, Patrick; Bahnemann, Detlef W. (Cambridge : Royal Society of Chemistry, 2012)

The photooxidation of methanol as a model substance for pollutants on rutile TiO 2 (001) and (100) surfaces was investigated using intensity modulated photocurrent spectroscopy (IMPS). The results are analyzed in view of ...
Completely integrated wirelessly-powered photocatalyst-coated spheres as a novel means to perform heterogeneous photocatalytic reactions

Burek, B.O.; Sutor, A.; Bahnemann, Detlef W.; Bloh, Jonathan Z. (Cambridge : Royal Society of Chemistry, 2017)

Heterogeneous photocatalytic reactions can be efficiently driven by completely integrated photocatalyst-light emitter units which are wirelessly powered from outside the reaction vessel using resonant inductive coupling. ...
Cytotoxicity of titanium and silicon dioxide nanoparticles

Wagner, Stefanie; Münzer, Simon; Behrens, Peter; Scheper, Thomas; Bahnemann, Detlef W.; Kasper, Cornelia (Bristol : IOP Publishing Ltd., 2009)

Different TiO 2 and SiO 2 nanoparticles have been tested concerning their toxicity on selected mammalian cell lines. Various powders and suspensions, all of which consist of titanium or silicon dioxide nanoparticles have ...
Design and synthesis of TiO2/C nanosheets with a directional cascade carrier transfer

Wu, Si-Ming; Wang, Yi-Tian; Xiao, Shi-Tian; Zhang, Yan-Xiang; Tian, Ge; Chen, Jiang-Bo; Zhao, Xiao-Fang; Janiak, Christoph; Shalom, Menny; Bahnemann, Detlef W.; Wang, Li-Ying; Yang, Xiao-Yu (Cambridge : RSC, 2022)

Directed transfer of carriers, akin to excited charges in photosynthesis, in semiconductors by structural design is challenging. Here, TiO2 nanosheets with interlayered sp2 carbon and titanium vacancies are obtained by ...
Durability of Ag-TiO(2) Photocatalysts Assessed for the Degradation of Dichloroacetic Acid

Menendez-Flores, Victor M.; Friedmann, Donia; Bahnemann, Detlef W. (New York : Hindawi Publishing Corporation, 2008)

The stability of Ag-TiO(2) photocatalysts was examined for the photocatalytic degradation of dichloroacetic acid (DCA) as a function of the recycling times. The photocatalytic activity was investigated by measuring the ...
Dynamics of photogenerated charge carriers in TiO2 /MoO3, TiO2 /WO3 and TiO2 /V2O5 photocatalysts with mosaic structure

Kokorin, Alexander I.; Sviridova, Tatyana V.; Konstantinova, Elizaveta A.; Sviridov, Dmitry V.; Bahnemann, Detlef W. (Basel : Molecular Diversity Preservation International (MDPI), 2020)

Titania is a widely used photocatalytic material possessing such advantages as low cost and high reactivity under the ultraviolet light illumination. However, the fast recombination of photoexcited charge carriers limits ...
Editorial: Special Issue on Photocatalytic Nanocomposite Materials (PNMs)

Bahnemann, Detlef W.; Emeline, Alexei V.; Rudakova, Aida V.; Bulanin, Kirill M.; Mikhaylov, Ruslan V. (Basel : MDPI, 2021)

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