Journal of Photochemistry and Photobiology A-chemistry最新文献

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The new metal-free, zinc, magnesium, indium ball-type phthalocyanines and their hybrids with graphene oxide: Synthesis, investigation of photophysical, photochemical properties and theoretical studies 新型无金属锌、镁、铟球型酞菁及其与氧化石墨烯的混合物:合成、光物理、光化学性质调查和理论研究
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-11-07 DOI: 10.1016/j.jphotochem.2024.116138
Ketrin Zeki , Süeda Asrak , Fatma Nur Yabaş , Nergis Çevik , Ebru Yabaş , Samson Khene , Bekir Salih , Mevlüde Canlıca
{"title":"The new metal-free, zinc, magnesium, indium ball-type phthalocyanines and their hybrids with graphene oxide: Synthesis, investigation of photophysical, photochemical properties and theoretical studies","authors":"Ketrin Zeki ,&nbsp;Süeda Asrak ,&nbsp;Fatma Nur Yabaş ,&nbsp;Nergis Çevik ,&nbsp;Ebru Yabaş ,&nbsp;Samson Khene ,&nbsp;Bekir Salih ,&nbsp;Mevlüde Canlıca","doi":"10.1016/j.jphotochem.2024.116138","DOIUrl":"10.1016/j.jphotochem.2024.116138","url":null,"abstract":"<div><div>In this study, four ball-type phthalocyanines (<strong>BTPc-H<sub>2</sub>-4, BTPc-Zn-5, BTPc-Mg-6, BTPc-In-7</strong>) were synthesized from 3,3′,((3,5-di-<em>tert</em>-butyl-1,2-phenylene)bis(oxy)diphthalonitrile in a single reaction step. Non-covalent ball-type phthalocyanine (BTPc)-graphene oxide (GO) hybrids (BTPc-GO) were prepared by simple sonication method. The structures were confirmed by elemental analysis, ultraviolet–visible (UV–Vis), fourier-transform infrared (FT-IR), proton nuclear magnetic resonance (<sup>1</sup>H NMR), MALDI-TOF MS spectroscopies, elemental analysis and scanning electron microscope (SEM). The photophysical and photochemical properties of ball-type phthalocyanines were investigated in dimethyl sulfoxide (DMSO) and tetrahydrofuran (THF). In this way, the contribution of solution polarity to these properties was compared. The contribution of GO was examined by examining the singlet oxygen quantum yields of BTPc-GO hybrids in DMSO. In addition, the structural properties of ball-type phthalocyanines were examined through theoretical studies and the effect of structural properties on experimentally determined band gaps was examined. Interestingly, we also report that ball-type thalocyanines are both photostable and exhibit extremely high singlet oxygen quantum yields. In addition, we can state that hybrids of these compounds with GO also show the ability to increase the singlet oxygen quantum yield, depending on the degree of interaction.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"461 ","pages":"Article 116138"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A novel azo-triazolopyridine-based dual naked-eye chemosensor for the selective detection of CN− and Cu2+ ions 基于偶氮-三唑并吡啶的新型裸眼双化学传感器,用于选择性检测 CN- 和 Cu2+ 离子
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-11-07 DOI: 10.1016/j.jphotochem.2024.116140
Sarah Poormoradkhan Melal, Behzad Khalili, Nosrat O. Mahmoodi, Meysam Pasandideh Nadamani
{"title":"A novel azo-triazolopyridine-based dual naked-eye chemosensor for the selective detection of CN− and Cu2+ ions","authors":"Sarah Poormoradkhan Melal,&nbsp;Behzad Khalili,&nbsp;Nosrat O. Mahmoodi,&nbsp;Meysam Pasandideh Nadamani","doi":"10.1016/j.jphotochem.2024.116140","DOIUrl":"10.1016/j.jphotochem.2024.116140","url":null,"abstract":"<div><div>A new chemosensor incorporating a triazolopyridine and an azo chromophore was synthesized and employed as a colorimetric sensor. Visual investigations for detecting anions and cations revealed that the sensor acts as a highly sensitive and selective chromogenic detector for cyanide (CN<sup>−</sup>) and copper (Cu<sup>2+</sup>) ions. The observable color change from yellow to deep orange for Cu<sup>2+</sup> and from yellow to purple for CN<sup>−</sup> allows for detecting these ions without the need for advanced equipment, even with the naked eye. The sensor’s limit of detection (LOD) was determined to be 0.02 μM for CN<sup>−</sup> ions and 1.13 μM for Cu<sup>2+</sup> ions. The Job plot indicated that the sensor binds to CN<sup>−</sup> and Cu<sup>2+</sup> with a stoichiometric ratio of 1:1 and 2:1, respectively. The ability to accurately and selectively distinguish Cu<sup>2+</sup> and CN<sup>−</sup> ions makes this sensor valuable for various analytical applications, including environmental monitoring and chemical analysis. Its capacity to produce noticeable and distinct color changes enables the rapid and straightforward detection of these hazardous ions, making it a practical choice for real-world applications. The quantum yield of <strong>A-TAP</strong>/Cu<sup>2+</sup> was 54 % at a λ<sub>max</sub> (maximum absorbance) of 450 nm, while that of <strong>A-TAP</strong>/CN<sup>−</sup> was 62 % at 538 nm, using a reference sensor with a λ<sub>max</sub> of 380 nm.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"460 ","pages":"Article 116140"},"PeriodicalIF":4.1,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Fluorescent scaffold integrating 2-aryl-1,2,3-triazole and thiazole rings with tuneable optical properties. Fundamental aspects and application prospects 集成 2-芳基-1,2,3-三唑和噻唑环并具有可调光学特性的荧光支架。基础方面和应用前景
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-11-01 DOI: 10.1016/j.jphotochem.2024.116104
Vitalii A. Krasilnikov , Timur O. Fomin , Maria V. Vargina , Artem S. Minin , Pavel A. Slepukhin , Enrico Benassi , Nataliya P. Belskaya
{"title":"Fluorescent scaffold integrating 2-aryl-1,2,3-triazole and thiazole rings with tuneable optical properties. Fundamental aspects and application prospects","authors":"Vitalii A. Krasilnikov ,&nbsp;Timur O. Fomin ,&nbsp;Maria V. Vargina ,&nbsp;Artem S. Minin ,&nbsp;Pavel A. Slepukhin ,&nbsp;Enrico Benassi ,&nbsp;Nataliya P. Belskaya","doi":"10.1016/j.jphotochem.2024.116104","DOIUrl":"10.1016/j.jphotochem.2024.116104","url":null,"abstract":"<div><div>A fluorescent scaffold was designed and synthesised by the conjugating of the 1,2,3-triazole ring with aryl- or diarylthiazole systems. As a result, two series of thiazole-1,2,3-triazole fluorophores were prepared by the Hantzsch reaction and Suzuki-Miyaura coupling, namely 4-aryl-2-(2-aryl-2<em>H</em>-1,2,3-triazol-4-yl)thiazole (DATTs) and 4,5-diaryl-2-(2-aryl-2<em>H</em>-1,2,3-triazol-4-yl)thiazole (TATTs). Their structures were investigated by XRD and quantum mechanical calculations at DFT level. All the novel compounds were studied under different conditions by UV–vis absorption and fluorescent spectroscopy and TD-DFT calculations. Strong solvato(fluoro)chromism was registered, resulting in a two- or three colour fluorescence depending on solvent polarity, accompanied by an increase in emission intensity when solvent polarity increases. Concentration dependent emissions were found, and DATTs and TATTs exhibited red-shifted absorption and emission compared to the parent triazoles and sensitivity to polar media. Biological tests demonstrated the biocompatibility of the synthesised fluorophores and their low or null toxicity. Multicolour fluorescence of DATTs and TATTs as a function of the excitation wavelength and dye localisation was demonstrated in cell experiments.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"460 ","pages":"Article 116104"},"PeriodicalIF":4.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Photoelectrodegradation and sensing of pentachlorophenol using In and Mn metalated porphyrins in the presence of TiO2 nanoparticles 在 TiO2 纳米粒子存在下使用 In 和 Mn 金属化卟啉对五氯苯酚进行光电降解和传感
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-11-01 DOI: 10.1016/j.jphotochem.2024.116118
Mbulelo Jokazi, Sixolile Centane, Philani Mashazi, Tebello Nyokong
{"title":"Photoelectrodegradation and sensing of pentachlorophenol using In and Mn metalated porphyrins in the presence of TiO2 nanoparticles","authors":"Mbulelo Jokazi,&nbsp;Sixolile Centane,&nbsp;Philani Mashazi,&nbsp;Tebello Nyokong","doi":"10.1016/j.jphotochem.2024.116118","DOIUrl":"10.1016/j.jphotochem.2024.116118","url":null,"abstract":"<div><div>This work reports on the study of electrochemical sensing, photodegradation and photoelectrodegradation of pentachlorophenol (PCP). Pentachlorophenol is a toxic compound that is used in the pharmaceutical industries and agriculture. It contaminates water through highly improper disposals and is carcinogenic. Electrochemical sensing was carried out using cyclic voltammetry to detect PCP using indium and manganese metalated porphyrins, TiO<sub>2</sub> nanoparticles and TiO<sub>2</sub>-metalloporphyrin composite as catalysts. A conductive indium tin oxide (ITO) was used as a semiconductor. The TiO<sub>2</sub>-metalloporphyrin complexes showed the best catalytic activity in both sensing and degradation. Photoelectrodegradation resulted in high efficiency compared to photodegradation and the introduction of H<sub>2</sub>O<sub>2</sub> resulted in complete degradation of PCP.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"460 ","pages":"Article 116118"},"PeriodicalIF":4.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Three multifunctional difluoroboron fluorescent dyes with five member N-heterocyclic ring for mechanofluorochromic behaviors, the ink-free writing and latent fingerprints imaging 三种具有五个 N-杂环的多功能二氟硼荧光染料,可用于机械氟变色行为、无墨书写和潜在指纹成像
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-11-01 DOI: 10.1016/j.jphotochem.2024.116125
Chunlin Chen , Jiazhuang Tian , Shan Li , Shulin Gao , Yanhua Yang , Xiangguang Li , Jin Zhang
{"title":"Three multifunctional difluoroboron fluorescent dyes with five member N-heterocyclic ring for mechanofluorochromic behaviors, the ink-free writing and latent fingerprints imaging","authors":"Chunlin Chen ,&nbsp;Jiazhuang Tian ,&nbsp;Shan Li ,&nbsp;Shulin Gao ,&nbsp;Yanhua Yang ,&nbsp;Xiangguang Li ,&nbsp;Jin Zhang","doi":"10.1016/j.jphotochem.2024.116125","DOIUrl":"10.1016/j.jphotochem.2024.116125","url":null,"abstract":"<div><div>To further advance the development of multifunctional fluorescent dyes, three difluoroboron compounds (<strong>F-1</strong>, <strong>F-2</strong>, and <strong>F-3</strong>) containing five-membered <em>N</em>-heterocyclic ring moieties that act as the electron-withdrawing units were synthesized. It was observed that compound <strong>F-1</strong>, which incorporated a 1,2,4-triazole segment, and compound <strong>F-3</strong> with 1,2,3-triazole portion exhibited aggregation-induced emission activities suitable for latent fingerprints imaging. In contrast, compound <strong>F-2</strong> featuring a pyrazole unit demonstrated an aggregation-caused quenching phenomenon. Additionally, all three compounds displayed mechanofluorochromic behaviors. Specifically, the emission spectra of compound <strong>F-1</strong> in the solid state experienced only a slight shift of approximately 5 nm upon grinding, however, compound <strong>F-2</strong> underwent a red shift from 475 to 501 nm while compound <strong>F-3</strong> shifted from 482 to 507 nm. Furthermore, both compounds <strong>F-2</strong> and <strong>F-3</strong> could be utilized in ink-free writing applications. Notably, the safety paper prepared using compound <strong>F-2</strong> was designed for single-use due to its irreversible mechanofluorochromic behavior, conversely, the safety paper derived from compound <strong>F-3</strong> was rewritable owing to its reversible mechanofluorochromic behavior. It provided a foundation for exploration the application of multifunctional difluoroboron compounds with 1,2,3-triazole moiety.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"460 ","pages":"Article 116125"},"PeriodicalIF":4.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The role of process parameters on photooxidative degradation of 2,4-D herbicide using TiO2 nanoparticles: Kinetic and mechanistic study 使用 TiO2 纳米粒子的过程参数对 2,4-D 除草剂光氧化降解的作用:动力学和机理研究
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-31 DOI: 10.1016/j.jphotochem.2024.116120
Lenka Belháčová , Taťána Supiňková , Darina Smržová , Vlastimil Fíla
{"title":"The role of process parameters on photooxidative degradation of 2,4-D herbicide using TiO2 nanoparticles: Kinetic and mechanistic study","authors":"Lenka Belháčová ,&nbsp;Taťána Supiňková ,&nbsp;Darina Smržová ,&nbsp;Vlastimil Fíla","doi":"10.1016/j.jphotochem.2024.116120","DOIUrl":"10.1016/j.jphotochem.2024.116120","url":null,"abstract":"<div><div>This systematic study investigates the effect of a wide range of TiO<sub>2</sub> nanoparticles on the kinetics and mechanism of photocatalytic degradation of the herbicide 2,4-D (2,4-dichlorophenoxyacetic acid). Changes in degradation rate, mineralization, and transformation pathways of 2,4-D correlated with nanoparticle physicochemical properties such as phase composition, size, and total pore volume. Primary intermediates, including hydroxylated chlorophenoxyacetic acids and 2,4-dichlorochlorophenoxy derivatives, were identified and their formation yields linked to the acid-base behaviour of 2,4-D. A comparison with homogeneous UV/H<sub>2</sub>O<sub>2</sub>-assisted degradation showed similar distribution of hydroxylated aromatic degradation intermediates as with large anatase nanoparticles (70 nm), while smaller particles facilitated pathways leading to the direct 2,4-D mineralization. DFT calculations supported experimental findings, and a scheme of the oxidative degradation of 2,4-D was proposed. Our results demonstrate that monitoring not only pollutant degradation but also overall mineralization is essential for evaluating photocatalysis efficiency and potential for practical applications.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"460 ","pages":"Article 116120"},"PeriodicalIF":4.1,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Insight into solvation-regulated emission: Dissecting the switchable ESIPT/ESPT mechanisms in HNT molecule 洞察溶解调节发射:剖析 HNT 分子中可切换的 ESIPT/ESPT 机制
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-30 DOI: 10.1016/j.jphotochem.2024.116124
Wentian Zhang, Hang Yin, Chunyue Yu, Jie Guo, Ying Shi
{"title":"Insight into solvation-regulated emission: Dissecting the switchable ESIPT/ESPT mechanisms in HNT molecule","authors":"Wentian Zhang,&nbsp;Hang Yin,&nbsp;Chunyue Yu,&nbsp;Jie Guo,&nbsp;Ying Shi","doi":"10.1016/j.jphotochem.2024.116124","DOIUrl":"10.1016/j.jphotochem.2024.116124","url":null,"abstract":"<div><div>As a crucial physical and chemical process, excited-state proton transfer has garnered significant interest among researchers due to its broad applications in photobiology. Recently, Wu et al. synthesized 3-(benzo[d]thiazol-2-yl) naphthalene-2-ol (HNT) molecule that exhibits excited-state intramolecular proton transfer (ESIPT) characteristic in THF while undergoes excited-state intermolecular proton transfer (ESPT) in aqueous solvent, which induce its solvent-regulated emission nature [Dyes and Pigments 182 (2020) 108665]. However, the dynamic interactions between the proton transfer mechanisms and the emission properties of the HNT molecule are yet to be fully elucidated. Specifically, the role of solvation effects in regulating inter- and intramolecular proton transfer, which leads to modifications in fluorescence properties, should be in-depth considered. In the present work, we delved into the ESIPT dynamics of the HNT molecule in aprotic THF, and examined the ESPT in protic aqueous solvent. Our findings indicate that the ESIPT process promotes the intersystem crossing process, which diminishes Keto* emission in THF solvent. Furthermore, the ESPT process within the HNT-water cluster accounts for the observed dual-fluorescence in aqueous solvent. This research illuminates the role of solute–solvent interactions in affecting the ESIPT/ESPT pathways, thereby clarifying the nature of HNT emission and providing an advantageous methodology for engineering novel dyes with customizable fluorescence characteristics.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"460 ","pages":"Article 116124"},"PeriodicalIF":4.1,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Study of factors impacting the light-driven removal of ciprofloxacin (Ciprocinal®) and identification of degradation products using LC–ESI–MS2 研究影响光驱去除环丙沙星(Ciprocinal®)的因素,并利用 LC-ESI-MS2 鉴定降解产物
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-29 DOI: 10.1016/j.jphotochem.2024.116119
Dušica Jovanović, Dejan Orčić, Daniela Šojić Merkulov, Vesna Despotović, Nina Finčur
{"title":"Study of factors impacting the light-driven removal of ciprofloxacin (Ciprocinal®) and identification of degradation products using LC–ESI–MS2","authors":"Dušica Jovanović,&nbsp;Dejan Orčić,&nbsp;Daniela Šojić Merkulov,&nbsp;Vesna Despotović,&nbsp;Nina Finčur","doi":"10.1016/j.jphotochem.2024.116119","DOIUrl":"10.1016/j.jphotochem.2024.116119","url":null,"abstract":"<div><div>This study aimed to assess the photocatalytic removal efficiency of the fluoroquinolone antibiotic ciprofloxacin (CIP), a pharmaceutically active compound of Ciprocinal®, from the aquatic environment. It focused on evaluating how various influencing factors – radiation type, catalyst loading, initial substrate concentration, CIP source, the introduction of different electron acceptors and scavengers of reactive species, water matrix, as well as photoreactor design – influence the photodegradation efficiency of the antibiotic. Namely, CIP photolytic removal efficiency was enhanced in the presence of H<sub>2</sub>O<sub>2</sub>, (NH<sub>4</sub>)<sub>2</sub>S<sub>2</sub>O<sub>8</sub>, and KBrO<sub>3</sub>. The highest reaction rate was achieved with a ZnO loading of 1.0 mg/mL, while the degradation rate of CIP increased with the initial concentration across the studied concentration range (0.0025–0.05 mmol/L). Molecular O<sub>2</sub> has the best electron acceptor properties in CIP photocatalytic experiments, whereas central role in the degradation mechanism belongs to <span><math><msubsup><mtext>HO</mtext><mrow><mtext>ads</mtext></mrow><mo>∙</mo></msubsup></math></span>, <em>h</em><sup>+</sup>, and <span><math><msubsup><mtext>O</mtext><mrow><mtext>2</mtext></mrow><mrow><mo>∙</mo><mo>-</mo></mrow></msubsup></math></span>. Next, CIP present in a commercial formulation was more prone to removal than the analytical standard, and its photocatalytic degradation occurs in natural water, however with a reduced removal efficiency compared to ultrapure water. Moreover, reaction intermediates formed during photocatalytic degradation were studied in detail by employing LC–ESI–MS<sup>2</sup> technique, whereby the formation of nine degradation intermediates was revealed, and possible CIP degradation patways were proposed. Lastly, ECOSAR model predicted that these intermediates do not pose acute or chronic toxicity towards the aquatic organisms.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"460 ","pages":"Article 116119"},"PeriodicalIF":4.1,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Construction of direct Z-scheme Sn3O4/WO3 heterostructure photocatalyst for enhanced Congo red degradation and Cr(Ⅵ) reduction performance 构建直接 Z 型 Sn3O4/WO3 异质结构光催化剂以提高刚果红降解和 Cr(Ⅵ)还原性能
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-29 DOI: 10.1016/j.jphotochem.2024.116122
Lina Zhang , Xiaotong Yin , Xinyu Liu , Wei Zhang , Yuxin Tian , Xiaodong Li , Boxin Li , Shi Su
{"title":"Construction of direct Z-scheme Sn3O4/WO3 heterostructure photocatalyst for enhanced Congo red degradation and Cr(Ⅵ) reduction performance","authors":"Lina Zhang ,&nbsp;Xiaotong Yin ,&nbsp;Xinyu Liu ,&nbsp;Wei Zhang ,&nbsp;Yuxin Tian ,&nbsp;Xiaodong Li ,&nbsp;Boxin Li ,&nbsp;Shi Su","doi":"10.1016/j.jphotochem.2024.116122","DOIUrl":"10.1016/j.jphotochem.2024.116122","url":null,"abstract":"<div><div>The development of well-designed architectures is crucial in accelerating the transport of photon-generated carriers in composite photocatalysts. In this study, a direct Z-scheme Sn<sub>3</sub>O<sub>4</sub>/WO<sub>3</sub> (SW) photocatalyst was successfully fabricated utilizing a straightforward hydro/solvothermal approach, where Sn<sub>3</sub>O<sub>4</sub> nanosheets (NSs) grew in-situ onto WO<sub>3</sub> nanorods (NRs) uniformly. The optimal SW-2 composite exhibits a remarkable reduction rate of 93.5 % for Congo Red (CR) within 40 min, with a rate constant (<em>k</em>) of 0.075 min<sup>−1</sup>. This performance surpasses that of pristine Sn<sub>3</sub>O<sub>4</sub> and WO<sub>3</sub>, which have rate constants of 0.027 min<sup>−1</sup> and 0.018 min<sup>−1</sup>, respectively. Additionally, the SW-2 composite effectively removes 89.2 % of Cr(VI) over 100 min, achieving a <em>k</em> value of 0.019 min<sup>−1</sup>, which is higher than that of Sn<sub>3</sub>O<sub>4</sub> (0.013 min<sup>−1</sup>) and WO<sub>3</sub> (0.001 min<sup>−1</sup>). Furthermore, the photocatalytic degradation performance of the recovered samples retains their photocatalytic degradation performance after five consecutive experimental cycles, indicating excellent durability. The enhanced photocatalytic performance can be attributed to the construction of a direct Z-scheme heterostructure, which not only broadens the spectral response range, bur also ensures efficient separation of photoexcited carriers and fosters robust photo-redox capacity within the composite. This study is expected to provide some valuable insights into the design and synthesis of Z-scheme heterojunction photocatalysts, aimed at addressing pressing environmental pollution challenges.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"460 ","pages":"Article 116122"},"PeriodicalIF":4.1,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Enhanced photocatalytic phenol production from benzene on polymers with coordinatively unsaturated Fe centers 在具有配位不饱和铁中心的聚合物上增强苯的光催化苯酚生产
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-29 DOI: 10.1016/j.jphotochem.2024.116123
Bo Wang , Peng Li , Zongbo Xie , Zhanggao Le
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