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Wang L, Carta M, Malpass-Evans R, McKeown NB, Fletcher PJ, Estrela P, Roldan A, Marken F. Artificial Formate Oxidase Reactivity with Nano-Palladium Embedded in Intrinsically Microporous Polyamine (Pd@PIM-EA-TB) Driving the H2O2 – 3,5,3’,5’-Tetramethylbenzidine (TMB) Colour Reaction. J Catal 2022. [DOI: 10.1016/j.jcat.2022.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Zhao Y, Wang L, Malpass-Evans R, McKeown NB, Carta M, Lowe JP, Lyall CL, Castaing R, Fletcher PJ, Kociok-Köhn G, Wenk J, Guo Z, Marken F. Effects of g-C 3N 4 Heterogenization into Intrinsically Microporous Polymers on the Photocatalytic Generation of Hydrogen Peroxide. ACS APPLIED MATERIALS & INTERFACES 2022; 14:19938-19948. [PMID: 35466666 PMCID: PMC9073839 DOI: 10.1021/acsami.1c23960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Graphitic carbon nitride (g-C3N4) is known to photogenerate hydrogen peroxide in the presence of hole quenchers in aqueous environments. Here, the g-C3N4 photocatalyst is embedded into a host polymer of intrinsic microporosity (PIM-1) to provide recoverable heterogenized photocatalysts without loss of activity. Different types of g-C3N4 (including Pt@g-C3N4, Pd@g-C3N4, and Au@g-C3N4) and different quenchers are investigated. Exploratory experiments yield data that suggest binding of the quencher either (i) directly by adsorption onto the g-C3N4 (as shown for α-glucose) or (ii) indirectly by absorption into the microporous polymer host environment (as shown for Triton X-100) enhances the overall photochemical H2O2 production process. The amphiphilic molecule Triton X-100 is shown to interact only weakly with g-C3N4 but strongly with PIM-1, resulting in accumulation and enhanced H2O2 production due to the microporous polymer host.
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Affiliation(s)
- Yuanzhu Zhao
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Lina Wang
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Richard Malpass-Evans
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, Scotland EH9 3JF, UK
| | - Neil B. McKeown
- EaStCHEM
School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster
Road, Edinburgh, Scotland EH9 3JF, UK
| | - Mariolino Carta
- Department
of Chemistry, Swansea University, College
of Science, Grove Building, Singleton Park, Swansea SA2 8PP, UK
| | - John P. Lowe
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Catherine L. Lyall
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Rémi Castaing
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Philip J. Fletcher
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Gabriele Kociok-Köhn
- University
of Bath, Materials & Chemical Characterisation
Facility, MC, Bath BA2 7AY, UK
| | - Jannis Wenk
- Department
of Chemical Engineering and Water Innovation Research Centre, WIRC, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Zhenyu Guo
- Department
of Chemical Engineering, Imperial College
London, South Kensington Campus, London, SW7 2AZ, UK
| | - Frank Marken
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
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Harris-Lee TR, Johnson SAL, Wang L, Fletcher PJ, Zhang J, Bentley C, Bowen CR, Marken F. TiO 2 nanocrystal rods on titanium microwires: growth, vacuum annealing, and photoelectrochemical oxygen evolution. NEW J CHEM 2022. [DOI: 10.1039/d2nj00045h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titania nanocrystal rods grown hydrothermally onto titanium microwire are mechanically robust and photoelectrochemically active.
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Affiliation(s)
- Thom R. Harris-Lee
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | | | - Lina Wang
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Philip J. Fletcher
- Materials and Chemical Characterisation Facility (MC2), University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Jie Zhang
- School of Chemistry, Monash University, Clayton, Vic 3800, Australia
| | - Cameron Bentley
- School of Chemistry, Monash University, Clayton, Vic 3800, Australia
| | - Christopher R. Bowen
- Department of Mechanical Engineering, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Frank Marken
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
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