ChemPhotoChem最新文献_第2页

Efficient Near-Infrared-Light-Driven H2 Production with Salts of a Diprotonated Saddle-Distorted Porphyrin as Photosensitizers 以双质子化鞍形扭曲卟啉盐为光敏剂的近红外光驱动制氢研究

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-04-14 DOI: 10.1002/cptc.202500009

Hiroaki Kotani, Takuya Miyazaki, Takumi Ehara, Yasutaka Kitahama, Hiroyuki Matsuzaki, Kiyoshi Miyata, Ken Onda, Hayato Sakai, Taku Hasobe, Yoshihito Shiota, Kazunari Yoshizawa, Takahiko Kojima

{"title":"Efficient Near-Infrared-Light-Driven H2 Production with Salts of a Diprotonated Saddle-Distorted Porphyrin as Photosensitizers","authors":"Hiroaki Kotani, Takuya Miyazaki, Takumi Ehara, Yasutaka Kitahama, Hiroyuki Matsuzaki, Kiyoshi Miyata, Ken Onda, Hayato Sakai, Taku Hasobe, Yoshihito Shiota, Kazunari Yoshizawa, Takahiko Kojima","doi":"10.1002/cptc.202500009","DOIUrl":"https://doi.org/10.1002/cptc.202500009","url":null,"abstract":"Development of near-infrared (NIR)-light-driven photocatalytic hydrogen (H2) production is indispensable for an efficient use of solar energy in a sustainable society. Herein, a strategy is reported for achieving higher quantum yields of NIR-light-driven photocatalytic H2 production using salts of diprotonated dodecaphenylporphyrin (H4DPP2+(X−)2), showing large saddle distortion as organic photosensitizers and platinum nanoparticles as catalysts. When a perchlorate ion (ClO4−) is employed as a counter ion (X−) of H4DPP2+(X−)2, the quantum yield of the photocatalytic H2 production reaches to 36% by excitation at 750 nm, which is the highest value among those of NIR-light-driven H2 production reported so far. Such a drastic enhancement of the quantum yield is achieved by selection of X− as an appropriate counter anion of H4DPP2+, judging from second-order rate constants of photoinduced electron transfer (ET) from electron donors to 3(H4DPP2+(X−)2)* and the reorganization energy of ET for H4DPP2+(X−)2.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cu0/Cu+-Modified Monoclinic TiO2(B) Nanoflowers with Oxygen Vacancies for Efficient Visible-Light-Driven Photocatalytic Reduction of CO2 具有氧空位的Cu0/Cu+修饰单斜型TiO2(B)纳米花在可见光驱动光催化还原CO2中的应用

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-04-10 DOI: 10.1002/cptc.202400305

Mengrong Zhang, Sha Ni, Zichao Yang, Min Zhang, Zhongjie Guan, Jianjun Yang

{"title":"Cu0/Cu+-Modified Monoclinic TiO2(B) Nanoflowers with Oxygen Vacancies for Efficient Visible-Light-Driven Photocatalytic Reduction of CO2","authors":"Mengrong Zhang, Sha Ni, Zichao Yang, Min Zhang, Zhongjie Guan, Jianjun Yang","doi":"10.1002/cptc.202400305","DOIUrl":"https://doi.org/10.1002/cptc.202400305","url":null,"abstract":"The photoreduction of CO2 has attracted extensive attention as a promising solution to global warming. In this study, Cu-modified TiO2(B) (CuTB) nanoflowers with oxygen vacancies (OVs) are designed and synthesized via hydrothermal treatment and photodeposition to promote the reactivity and selectivity of CO2 reduction to CO under visible light. The CO and CH4 yields of sample Cu1TB-1.5 under visible light are 5.72 and 0.02 μmol g−1 h−1, wherein the CO yield was 15.5 times that of sample TB; its selectivity is 99.6%, and the cycling stability is excellent. OVs can broaden the light absorption of TB to the visible light region, and Cu promotes photoinduced electron transfer from TB to the Cu species and act as an active center. The OVs and Cu can synergistically enhance charge separation, CO2 adsorption, and CO2 conversion. The Cu1TB-1.5 facilitates the formation of the intermediate COOH* during the photocatalytic process, thus improving the yield and selectivity of CO. This research provides a unique idea for the development of novel highly selective photocatalysts.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Expanding the Horizons of Phototherapy: A Review on the Superior Performance of Chalcogen-Based Photosensitizers and Photothermal Agents for Cancer Therapy 拓展光疗的视野：硫基光敏剂和光热剂在癌症治疗中的优越性能综述

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-04-10 DOI: 10.1002/cptc.202400415

Subhrakant Jena, Pranay Mohanty, Laxmipriya Dash, Himansu S. Biswal

{"title":"Expanding the Horizons of Phototherapy: A Review on the Superior Performance of Chalcogen-Based Photosensitizers and Photothermal Agents for Cancer Therapy","authors":"Subhrakant Jena, Pranay Mohanty, Laxmipriya Dash, Himansu S. Biswal","doi":"10.1002/cptc.202400415","DOIUrl":"https://doi.org/10.1002/cptc.202400415","url":null,"abstract":"Phototherapy, encompassing photodynamic therapy (PDT) and photothermal therapy (PTT), presents a promising cancer treatment strategy with high spatial specificity and minimal invasiveness. Optimizing these techniques hinges on the design of high-performance photosensitizers (PSs) and photothermal agents (PTAs). Single-atom chalcogen substitution, at both endocyclic and exocyclic positions in conventional organic chromophores, has proven to be a novel strategy for enhancing their photophysical and photochemical properties. Ideal PSs/PTAs exhibit high biocompatibility, visible-to-near-infrared (vis–NIR) absorption, efficient triplet state harvesting, and feasible heat and energy transfer efficiency. Moreover, chalcogen-based PSs/PTAs show promise for synergistic multimodal therapies, integrating imaging and treatment. This review comprehensively examines recent advancements (within the last five years) in utilizing chalcogen substitution to design robust PSs/PTAs for PDT/PTT. It provides a holistic perspective on spectroscopic characterization and computational analyses, singlet-oxygen/triplet quantum yields, heat generation efficiency, and in vitro/in vivo biological evaluations of chalcogen-substituted PSs/PTAs. It is anticipated that this review will stimulate further research endeavors in this promising area.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202400415","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Front Cover: (ChemPhotoChem 4/2025) 封面：（ChemPhotoChem 4/2025）

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-04-08 DOI: 10.1002/cptc.202580401

引用次数: 0

Anserine Radicals Formed in Photoinduced Reaction with 2,2′-Dipyridyl: Kinetics, Reduction by Aromatic Amino Acids, and Comparison with Methyl Histidine and Carnosine 与2,2 ' -二吡啶光诱导反应中形成的鹅胺自由基：动力学、芳香族氨基酸的还原以及与甲基组氨酸和肌肽的比较

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-03-21 DOI: 10.1002/cptc.202400309

Dr. Olga B. Morozova, Dr. Natalya N. Fishman, Dr. Alexandra V. Yurkovskaya

{"title":"Anserine Radicals Formed in Photoinduced Reaction with 2,2′-Dipyridyl: Kinetics, Reduction by Aromatic Amino Acids, and Comparison with Methyl Histidine and Carnosine","authors":"Dr. Olga B. Morozova, Dr. Natalya N. Fishman, Dr. Alexandra V. Yurkovskaya","doi":"10.1002/cptc.202400309","DOIUrl":"https://doi.org/10.1002/cptc.202400309","url":null,"abstract":"Selectively hyperpolarized NMR spectroscopy allows the indirect detection of optically silent methyl histidine radicals in the reversible photoinduced reactions of the dipeptide anserine (β-alanyl-1-methyl-histidine) with 2,2’-dipyridyl as photosensitizer using time-resolved chemically induced dynamic nuclear polarization (TR CIDNP) method. For comparison, experimental data were obtained for 1-methyl histidine, 3-methyl histidine and carnosine (β-alanyl-histidine). The CIDNP kinetics revealed the formation of the cationic radicals of the studied methyl histidine-containing compounds, resulting from their involvement in the reaction of degenerate electron exchange with the parent molecules, in contrast to the case of carnosine. This finding confirmed electron transfer as the mechanism of photo-induced oxidation of methyl histidine-containing compounds. TR CIDNP was also used to study the reduction of cation-radicals of anserine and methyl histidines by aromatic amino acids tryptophan and tyrosine. From the modeling of CIDNP kinetic data obtained for the three-component system containing photosensitizer, methyl histidine-containing compound, and reducing agent, we determine the rate constants of the reduction reaction. Our results highlight the utility of TR CIDNP to track reactions of histidine radicals at ambient conditions, providing a deeper understanding of the role of histidine-containing dipeptides in biochemical processes, including their potential antioxidant properties and impact on the management of oxidative stress.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Surface Hydroxyl Species Enabled Nb2O5 for the Photocatalytic Oxidation of 5-Hydroxymethylfurfural 表面羟基使能Nb2O5光催化氧化5-羟甲基糠醛

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-03-21 DOI: 10.1002/cptc.202500004

Neeraj Sharma, Rahul Gautam, Kanika Saini, Hu Li, Shunmugavel Saravanamurugan

{"title":"Surface Hydroxyl Species Enabled Nb2O5 for the Photocatalytic Oxidation of 5-Hydroxymethylfurfural","authors":"Neeraj Sharma, Rahul Gautam, Kanika Saini, Hu Li, Shunmugavel Saravanamurugan","doi":"10.1002/cptc.202500004","DOIUrl":"https://doi.org/10.1002/cptc.202500004","url":null,"abstract":"Niobium oxide (Nb2O5), an alternative to TiO2, has been recognized as a promising photocatalyst for the oxidation of 5-hydroxymethylfurfural (HMF) to 2, 5-diformylfuran (DFF). A series of Nb2O5 photocatalysts are prepared using a simple thermal approach, and their photocatalytic performance for HMF oxidation is tested. Nb2O5 treated at relatively lower temperatures (300–400 °C) possesses a higher surface area with abundant surface hydroxyl groups and adsorbed water species, which play a key role in the HMF oxidation, affording high DFF selectivity. In contrast, Nb2O5 treated at higher temperatures (500–600 °C) exhibits an adverse effect on the photocatalytic performance due to the substantial loss of surface hydroxyl groups and adsorbed water species. Various structural characterizations such as X-ray diffractometer, N2-sorption analyses, and thermogravimetric analyser Nb2O5 treated at different temperatures. At the same time, CO2-temperature programmed desorption (TPD), O2–TPD, and diffuse reflectance infrared Fourier transform spectra disclose the nature and distribution of active sites, especially strong basic sites, which is essential for comprehending the interaction between HMF and the surface of the catalyst.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights into the Structure–Property Relationship of Difluoro Boron Dipyridomethene Derivatives 二氟硼二吡啶甲基衍生物的构效关系研究

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-03-17 DOI: 10.1002/cptc.202400395

Camille Chériaux, Thomas V. Papineau, Pascal Retailleau, Carlotta Figliola, Denis Jacquemin, Gilles Ulrich

引用次数: 0

Double Click for Chirality: Chiral Dibenzo-cycloocta-bis-triazoles via Strain-Promoted Alkyne-Azide Cycloaddition 通过菌株促进的炔叠氮环加成的手性二苯并-环-双三唑

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-03-14 DOI: 10.1002/cptc.202500042

Sebastian Pim, Aaron D. G. Campbell, Dmitry Levshov, Wouter Herrebout, Gonzalo Durán-Sampedro, Michael J. Hall, Roly J. Armstrong, Donal F. O'Shea

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Conformation Dependent Room Temperature Phosphorescence in Organic Materials 有机材料中与构象相关的室温磷光

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-03-14 DOI: 10.1002/cptc.202400404

Dr. Andrea Fermi

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Purifying the Air with Photocatalysis: Developing Bismuth Oxybromide/ Copper Phthalocyanine Composite Photocatalyst Filters with Enhanced Activity for NOx Removal 光催化净化空气：开发氧溴化铋/酞菁铜复合光催化过滤器，提高NOx去除活性

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-03-13 DOI: 10.1002/cptc.202400346

Oyelusi Olaifa, Paransa Alimard, Ioanna Itskou, Flurin Eisner, Camille Petit, Silvia Díez-González, Andreas Kafizas

{"title":"Purifying the Air with Photocatalysis: Developing Bismuth Oxybromide/ Copper Phthalocyanine Composite Photocatalyst Filters with Enhanced Activity for NOx Removal","authors":"Oyelusi Olaifa, Paransa Alimard, Ioanna Itskou, Flurin Eisner, Camille Petit, Silvia Díez-González, Andreas Kafizas","doi":"10.1002/cptc.202400346","DOIUrl":"https://doi.org/10.1002/cptc.202400346","url":null,"abstract":"The utilization of photocatalysis is a promising new strategy for reducing the substantially high levels of nitrogen oxides (NOx) pollution in cities. In this work, we examine bismuth oxybromide (BiOBr) as a viable substitute due to its narrower band gap and high stability. Powders were synthesised using co-precipitation, solvothermal and hydrothermal synthesis methods, resulting in particles with various morphologies including microcubes, microspheres, microflowers, clusters and microsquares. Their photocatalytic activities being evaluated in accordance with ISO 22197–1 : 2016 protocol under UV and visible light. The samples exhibiting the highest performance were produced by co-precipitation, showing ~7 % NO and ~2 % NOx removal under visible light and ~19 % NO and ~10 % NOx removal under UV light. The activity was further enhanced, by incorporating copper(II) phthalocyanine (CuPc) through an impregnation method, where the optimal loading of 0.01 mol% surpassed the activity of the benchmark photocatalyst TiO2 P25, with ~22 % NO and ~9 % NOx removal under visible light and ~40 % NO and ~23 % NOx under UV light. We anticipate that these BiOBr/CuPc photocatalyst filters can be applied within air purification systems and powered using less energy intensive visible light sources to remedy air pollution.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202400346","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0