Kinetics of electron–hole pair trapping via photoionization of biphenyl occluded in aluminium-rich ZSM-5 zeolites. Effects of extra-framework cations

Literature Information

Publication Date 2004-05-10
DOI 10.1039/B401816H
Impact Factor 3.676
Authors

Isabelle Gener, Alain Moissette, Claude Brémard


View Original

Abstract

The effects of the extraframework cations M+ = Li+, Na+, K+, Rb+, Cs+ of aluminium rich M6.6ZSM-5 zeolites on the long-lived photoproducts of occluded biphenyl (BP) have been investigated by conventional diffuse reflectance UV-visible (DRUVv) absorption and continuous wave electron paramagnetic resonance (CW-EPR). Many DRUVv and EPR spectra were recorded over two days after the UV laser photoionization (248 nm, 15 s, 30 mW cm−2) of dehydrated M6.6(AlO2)6.6(SiO2)89.4 samples loaded with 1 BP per unit cell. The application of EPR measurements provided evidence of durable BP˙+-electron moiety through well resolved seven line signal (BP˙+) superimposed on a broad overlapping feature (trapped electron). The EPR spectra recorded during the development of the irradiated samples at room temperature indicated the BP˙+ disappearance and the persistence of broad signal. These persistent structureless signals were assigned to very long-lived electron–hole pairs. The application of the SIMPLISMA approach to DRUVv data sets recorded after the photolysis resolved two pure absorption spectra assigned to BP˙+ and electron–hole pairs (420–500 nm) for all the irradiated samples. All the decays of corresponding concentrations were found to fit accurately a model of first order dispersed heterogeneous kinetics. The BP˙+ disappearance rate constants were found to increase with larger alkali metal cations (Li+ ∼ Na+ < K+ ∼ Rb+ ≪ Cs+) and correlated to the electron-donating ability of the framework. The electron abstraction by BP˙+ did not induce direct charge recombination but generated persistent electron–hole pair over at most 1 h (Li+) and at least 1 min (Cs+). The electron–hole pair recombination went to completion over more than two days (M = Li+) and less than 1 h (M = K+). The recombination rate was found to be in relation with the electron donor properties of framework but probably involved other parameters.

Related Literature

Fluorescent visual quantitation of cell-secreted sialoglycoconjugates by chemoselective recognition and hybridization chain reaction

Yingying Xiong, Yunlong Chen, Lin Ding, Xiaoqiang Liu, Huangxian Ju

2019-06-07 Paper

DOI: 10.1039/C9AN00572B

Proximity hybridization-regulated electrochemical stripping of silver nanoparticles via nanogold induced deposition for immunoassay

Jie Li, Jie Wu, Lin Cui, Mengmeng Liu, Feng Yan, Huangxian Ju

2015-10-20 Paper

DOI: 10.1039/C5AN01946J

Mass spectrometry of modified RNAs: recent developments

Collin Wetzel, Patrick A. Limbach

2015-10-21 Minireview

DOI: 10.1039/C5AN01797A

Visualization of biosensors using enhanced surface plasmon resonances in capped silver nanostructures

Kuang-Li Lee, Meng-Lin You, Cheng-Lin Tsai, Chia-Yu Hung, Shu-Yi Hsieh

2015-11-25 Paper

DOI: 10.1039/C5AN02063H

Correction: Biophysical separation of Staphylococcus epidermidis strains based on antibiotic resistance

Paul V. Jones, Shannon Huey Hilton, Paige E. Davis, Ryan Yanashima, Ryan McLemore, Alex McLaren, Mark A. Hayes

2015-12-02 Correction

DOI: 10.1039/C5AN90100F

Visual detection of serum asialohaptoglobin by plasmonic sandwich ELLSA – a new platform for cirrhosis diagnosis

Partha Pratim Bose, Gautam Mandal, Dharmendra Kumar, Ajay Duseja, Bishnu Pada Chatterjee

2015-11-03 Communication

DOI: 10.1039/C5AN02000J

Cancer biomarker discovery using DNA aptamers

Cheng Jin, Jin Li, Xiaobing Zhang

2015-10-30 Critical Review

DOI: 10.1039/C5AN01918D

Front cover

Cover

DOI: 10.1039/C9AN90065A

Real-time imaging of cancer cell chemotaxis in paper-based scaffolds

Rachael M. Kenney, Matthew W. Boyce, Andrew S. Truong, C. Robert Bagnell

2015-11-09 Paper

DOI: 10.1039/C5AN01787D

Aptamers: versatile molecular recognition probes for cancer detection

Hongguang Sun, Weihong Tan, Youli Zu

2015-11-18 Minireview

DOI: 10.1039/C5AN01995H

You might also like

Compound Q&A

How should waste containing (6-Bromo-2-naphthyl)oxy](dimethyl)(2-methyl-2-propanyl)silane be handled?

Waste containing (6-Bromo-2-naphthyl)oxy](dimethyl)(2-methyl-2-propanyl)silane (...

100751-65-3[(6-Bromo-2-naphthyl...
Compound Q&A

How is 7-Fluoro-4-isoquinolinecarboxylic acid (CAS: 1841081-40-0) typically synthesized?

7-Fluoro-4-isoquinolinecarboxylic acid can be synthesized via a multi-step proce...

1841081-40-07-Fluoro-4-isoquinol...
Compound Q&A

What are the physical and chemical properties of 2,3,5,6-Tetrabromothieno[3,2-b]thiophene (CAS: 124638-53-5)?

2,3,5,6-Tetrabromothieno[3,2-b]thiophene is a crystalline compound with a high m...

124638-53-52,3,5,6-Tetrabromoth...
Compound Q&A

Is 1-[4-(Benzylamino)-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-2-yl]-2-methyl-1H-indole-4-carboxamide (CAS: 1542705-92-9) safe?

1-[4-(Benzylamino)-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-2-yl]-2-methyl-1H-indol...

1542705-92-91-[4-(Benzylamino)-7...
Compound Q&A

What is the market or research trend for imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylic acid, 3,4-dihydro-3-methyl-4-oxo- (CAS: 113942-30-6)?

The market for imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylic acid, 3,4-dihydro-3...

113942-30-6Imidazo[5,1-d]-1,2,3...
Compound Q&A

What is 3-(Triisopropylsilyl)propiolaldehyde (CAS: 163271-80-5)?

3-(Triisopropylsilyl)propiolaldehyde is a synthetic organic compound with the CA...

163271-80-53-(Triisopropylsilyl...
Compound Q&A

What regulatory guidelines apply to 6-Nitro-2H-1,4-benzoxazin-3(4H)-one (CAS: 81721-87-1)?

6-Nitro-2H-1,4-benzoxazin-3(4H)-one (CAS: 81721-87-1) is subject to various regu...

81721-87-16-Nitro-2H-1,4-benzo...
Compound Q&A

How should waste containing (3-Fluorophenyl)(4-{[(2-methyl-2-propanyl)oxy]carbonyl}-1-piperazinyl)acetic acid (CAS: 885272-91-3) be handled?

Waste containing (3-Fluorophenyl)(4-{[(2-methyl-2-propanyl)oxy]carbonyl}-1-piper...

885272-91-3(3-Fluorophenyl)(4-{...
Compound Q&A

What are the physical and chemical properties of N,N'-4,4'-Biphenyldiyldiisonicotinamide (CAS: 55119-40-9)?

N,N'-4,4'-Biphenyldiyldiisonicotinamide is a white crystalline solid with a mole...

55119-40-9N,N'-4,4'-Biphenyldi...
Compound Q&A

What industries use 6-Bromo-8-fluoro-2-quinazolinol (CAS: 1036756-15-6)?

6-Bromo-8-fluoro-2-quinazolinol is primarily used in the pharmaceutical industry...

1036756-15-66-Bromo-8-fluoro-2-q...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.