The pH dependence of OH radical formation in photo-electrochemical water oxidation with rutile TiO2 single crystals
Literature Information
Yukihiro Nakabayashi, Yoshio Nosaka
It has been believed that photocatalytic oxidation in water proceeds with the reaction of OH radicals generated on the photocatalysts. To explore the actual contribution of OH radicals to photocatalytic oxidation, OH radicals were detected by fluorescence probe method in photoelectrolysis with rutile TiO2 of (100) and (110) facets. The effect of hydrogen peroxide on the OH radical formation at pH 6.7 was investigated to confirm the relevant intermediate which was suggested in our previous report for water oxidation. In alkaline solutions at pH 9.6 and 12.5, the current efficiencies of OH radical formation were 0.01–0.05%, which are far smaller than those at pH 6.7 (0.2–0.6%) due to the deprotonation of the reaction intermediate as confirmed by FT-IR measurements. These experimental results support a plausible reaction mechanism that the surface Ti–O–O–Ti structure is an intermediate of the water oxidation process, by which mechanism the O2 production becomes favorable in alkaline solution.
Related Literature
Diastereoselective construction of structurally diverse 2,3-dihydroquinolin-4-one scaffolds via redox neutral cascade [1,7]-hydride transfer/cyclization
Ronghao Xie, Shixiao Chen, Xianping Xiang, Xiangcong Yin, Lubin Xu, Shuai-Shuai Li, Liang Wang, Fengying Dong
DOI: 10.1039/D1QO01530C
Synthesis of protectin D1 analogs: novel pro-resolution and radiotracer agents
J. E. Tungen, M. Aursnes, S. Ramon, R. A. Colas, C. N. Serhan, S. Nuruddin, F. Willoch, T. V. Hansen
DOI: 10.1039/C8OB01232F
Structure-based protein engineering enables prenyl donor switching of a fungal aromatic prenyltransferase
Peter Mai, Georg Zocher, Thilo Stehle, Shu-Ming Li
DOI: 10.1039/C8OB02037J
Alkali-metal ion catalysis and inhibition in nucleophilic displacement reactions at carbon, phosphorus and sulfur centres. IX.p-Nitrophenyl diphenyl phosphate‡
Ruby Nagelkerke, Gregory R. J. Thatcher, Erwin Buncel
DOI: 10.1039/B208408B
Metal-free synthesis of N-sulfonylformamidines via skeletal reconstruction of sulfonyl oximonitriles
Feng Li, Ziyan Wu, Jingjing Wang, Siyuan Zhang, Jiaxin Yu, Zhen Yuan, Jingya Liu, Renzeng Shen, Yao Zhou
DOI: 10.1039/D1QO01665B
An effective preparation of both 1,3-diketones and nitriles from alkynones with oximes as hydroxide sources
Pei Chen, Qian-Qian Zhang, Jia Guo, Lu-Lu Chen, Yan-Bo Wang, Xiao Zhang
DOI: 10.1039/C8OB01861H
Synthesis of functionalized 3,2′-pyrrolidinyl spirooxindoles via domino 1,6-addition/annulation reactions of para-quinone methides and 3-chlorooxindoles
Xiaochen Tian, Yongxing Zhang
DOI: 10.1039/D1QO01605A
Eugenunilones A–H: rearranged sesquiterpenoids from Eugenia uniflora
Mu Chen, Jia-Qing Cao, Song Ang, Ting-Ni Zeng, Ni-Ping Li, Tang-Jia Yang, Jun-Shan Liu, Yan Wu, Wen-Cai Ye, Lei Wang
DOI: 10.1039/D1QO01629F
Preparation and characterization of pyrene modified uridine derivatives as potential electron donors in RNA
Jennifer Frommer, Beatrice Karg, Klaus Weisz, Sabine Müller
DOI: 10.1039/C8OB02246A
Ni(ii)-Catalyzed intermolecular selective Heck-type arylation of unactivated alkenes with arylboronic acids
Cong Lin, Sai Chen, Yihua Wang, Fei Gao, Liang Shen
DOI: 10.1039/D1QO01579F
You might also like
Is 6-(3-Fluorophenyl)picolinic acid (CAS: 887982-40-3) safe?
6-(3-Fluorophenyl)picolinic acid is generally considered safe for laboratory use...
What industries use (3R)-3-Pyrrolidinol (CAS: 2799-21-5)?
(3R)-3-Pyrrolidinol is used in the pharmaceutical industry as a precursor for dr...
What precautions should be taken when handling (4R,5R)-4,5-Diethoxycarbonyl-2,2-dimethyldioxolane (CAS: 59779-75-8)?
When handling (4R,5R)-4,5-Diethoxycarbonyl-2,2-dimethyldioxolane (CAS: 59779-75-...
How is 1-(6-Chloroimidazo[1,2-b]pyridazin-3-yl)ethanone (CAS: 90734-71-7) typically synthesized?
1-(6-Chloroimidazo[1,2-b]pyridazin-3-yl)ethanone is often synthesized via a mult...
What is the market or research trend for N-Ethyl-3,4-dimethylbenzylamine (CAS: 39180-83-1)?
The market for N-Ethyl-3,4-dimethylbenzylamine (CAS: 39180-83-1) remains steady,...
What is Tert-butyl 3-(pyrrolidin-1-yl)azetidine-1-carboxylate (CAS: 1019008-21-9)?
Tert-butyl 3-(pyrrolidin-1-yl)azetidine-1-carboxylate is a chemical compound wit...
What regulatory guidelines apply to 1-Bromo-3-chloro-2,4-dimethoxybenzene (CAS: 1228956-93-1)?
1-Bromo-3-chloro-2,4-dimethoxybenzene (CAS: 1228956-93-1) falls under the classi...
Is 8-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS: 1368622-07-4) safe?
The safety of 8-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS: 1368622-07...
Is Benzyl [(3S)-2,6-dioxo-3-piperidinyl]carbamate (CAS: 22785-43-9) safe?
Benzyl [(3S)-2,6-dioxo-3-piperidinyl]carbamate is generally safe when handled wi...
How should 1-{[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonyl}pyrrolidine (CAS: 928657-21-0) be stored?
1-{[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonyl}pyrrolidine s...
Source Journal
Physical Chemistry Chemical Physics

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.














![2-Methyl-2-propanyl [(2S)-1-hydroxy-3-(4-hydroxyphenyl)-2-propanyl]carbamate structure 2-Methyl-2-propanyl [(2S)-1-hydroxy-3-(4-hydroxyphenyl)-2-propanyl]carbamate structure](https://static.chemtradehub.com/structs/833/83345-46-4-eec2.webp)