Journal of Photochemistry and Photobiology A-chemistry最新文献

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Far-red active squaraine dye-sensitized photoanode for dye-sensitized solar cells with a copper (II/I) electrolyte 用于铜 (II/I) 电解质染料敏化太阳能电池的远红活性方碱染料敏化光阳极
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-12 DOI: 10.1016/j.jphotochem.2024.116086
Indrajeet S. Nawghare , Shivdeep Suresh Deshmukh , Krati Joshi , Sailaja Krishnamurty , Kothandam Krishnamoorthy , Jayaraj Nithyanandhan
{"title":"Far-red active squaraine dye-sensitized photoanode for dye-sensitized solar cells with a copper (II/I) electrolyte","authors":"Indrajeet S. Nawghare ,&nbsp;Shivdeep Suresh Deshmukh ,&nbsp;Krati Joshi ,&nbsp;Sailaja Krishnamurty ,&nbsp;Kothandam Krishnamoorthy ,&nbsp;Jayaraj Nithyanandhan","doi":"10.1016/j.jphotochem.2024.116086","DOIUrl":"10.1016/j.jphotochem.2024.116086","url":null,"abstract":"<div><div>In dye-sensitized solar cells (DSSC), controlling the dye-aggregation on TiO<sub>2</sub> and charge recombination between electrons present in TiO<sub>2</sub> and electrolyte can be achieved by wrapping the long alkyl groups around the dye structure and further introducing bulky donor on the dye is a potential approach to enhance both the open-circuit potential and short-circuit current parameters. Additionally, bulky donor containing dye structures modulates the photophysical and electrochemical properties of the sensitizer which helps reducing the over potentials required for the dye regeneration process by utilizing a multidentate ligand containing [Cu(tme)]<sup>2+/+</sup> and I<sup>−</sup>/I<sub>3</sub><sup>−</sup> redox electrolytes. Hagfeldt donor appended far-red NIR active unsymmetrical squaraine dye (<strong>SQ-HF</strong>) has been designed, synthesized, and characterized. <strong>SQ-HF</strong> dye showed an intense absorption at 676 nm (ε 1.7 × 10<sup>5</sup> M<sup>−1</sup>cm<sup>−1</sup>). Photophysical and electrochemical studies indicated that the LUMO and HOMO energy levels of the <strong>SQ-HF</strong> dye were suited for charge injection (from the LUMO of the dye to the conduction band of TiO<sub>2</sub>) and dye-regeneration processes, respectively. The DSSC device efficiency of 5.15 % (<em>J</em><sub>SC</sub> of 10.83 mA/cm<sup>2</sup> and <em>V</em><sub>OC</sub> of 0.690 V) has been achieved for <strong>SQ-HF</strong> dye by utilizing a literature reported [Cu(tme)]<sup>2+/+</sup> and 4.11 % (<em>J</em><sub>SC</sub> of 8.74 mA/cm<sup>2</sup> and <em>V</em><sub>OC</sub> of 0.702 V) in I<sup>−</sup>/I<sub>3</sub><sup>−</sup> redox shuttles, respectively.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116086"},"PeriodicalIF":4.1,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539806","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
Thionation of conjugated porphyrin with enhanced photodynamic and photothermal effects for cancer therapy 硫离子化共轭卟啉,增强癌症治疗的光动力和光热效应
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-12 DOI: 10.1016/j.jphotochem.2024.116085
Simiao Tong , Yifan Cheng , Hongjie Liu , Yudong Pang , Xiao Lin , Zhiyuan Hu , Fengshou Wu
{"title":"Thionation of conjugated porphyrin with enhanced photodynamic and photothermal effects for cancer therapy","authors":"Simiao Tong ,&nbsp;Yifan Cheng ,&nbsp;Hongjie Liu ,&nbsp;Yudong Pang ,&nbsp;Xiao Lin ,&nbsp;Zhiyuan Hu ,&nbsp;Fengshou Wu","doi":"10.1016/j.jphotochem.2024.116085","DOIUrl":"10.1016/j.jphotochem.2024.116085","url":null,"abstract":"<div><div>Phototherapy has emerged as a promising modality for cancer treatment in recent years, owing to its precise temporal control and minimally invasive nature. Here, two new organic porphyrin molecules, denoted as ONP and SNP, were designed and synthesized with an acceptor–donor–acceptor (A-D-A) architecture. The donor–acceptor (D-A) pairs in molecules facilitated the intermolecular charge transfer (ICT), thereby amplifying near-infrared (NIR) absorbance and promoting nonradiative heat generation. Notably, the substitution of oxygen atoms with sulfur in naphthalimides (NI) led to significant change of their photophysical and photochemical properties. Specifically, the sulfur atoms exhibited pronounced spin–orbit coupling (SOC) effect, leading to efficient photoinduced intersystem crossing (ISC) processes, thus facilitating the generation of reactive oxygen species (ROS). Upon self-assembly, the formed nanomaterials (ONP NPs and SNP NPs) exhibited spherical morphology with average size about 150 nm. The biocompatibility and photocytotoxicity of nanoparticles against Hepa1-6 cells were evaluated using the CCK-8 assay. Additionally, the synergistic effects (photodynamic therapy and photothermal therapy) of SNP NPs were confirmed through diverse in vitro experiment under 690 nm laser irradiation. The generation of intracellular ROS by SNP NPs was confirmed with DCFH-DA as probe. This study provides an ingenious strategy for developing organic nanomaterials with high treatment efficiency through synergistic photodynamic/photothermal effects.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116085"},"PeriodicalIF":4.1,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438434","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 merocyanine photoacid for visible light-controlled pH modulation 用于可见光控制 pH 值调节的新型美拉尼光酸
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-12 DOI: 10.1016/j.jphotochem.2024.116081
Rajib Choudhury , Trevor Martin , Natalie Buie , Brian Walker , Jocelyn Dong
{"title":"A novel merocyanine photoacid for visible light-controlled pH modulation","authors":"Rajib Choudhury ,&nbsp;Trevor Martin ,&nbsp;Natalie Buie ,&nbsp;Brian Walker ,&nbsp;Jocelyn Dong","doi":"10.1016/j.jphotochem.2024.116081","DOIUrl":"10.1016/j.jphotochem.2024.116081","url":null,"abstract":"<div><div>Merocyanine-based photoacids generate high proton concentrations under visible light irradiation. In the past decade, it has been established that these photoacids offer significant advantages over photoacid generators (PAGs) and hydroxyaryl photoacids, enabling better spatiotemporal control of proton transfer reactions in bulk media. In this study, we modified the core structure of the first generation of meroyanine photoacids. We developed a novel photoacid with color tuning capabilities and high solubility in polar organic solvents. Specifically, by incorporating a cationic benzoindolium moiety as an acceptor, we have altered the photoacid’s light absorption properties. Unlike the first generation of indolium-based merocyanine photoacids, this photoacid can now be activated with green light (λ<sub>max</sub> = 525 nm) as well as blue (λ<sub>max</sub> = 450 nm) and ultraviolet (λ<sub>max</sub> = 365 nm) lights. Furthermore, the novel photoacid exhibits high photo stability, photo-acidity (Π = 3.28 ± 0.08) and moderate reverse reaction rate (k = 1.08 × 10<sup>−3</sup> ± 0.00017 s<sup>−1</sup>) in solution. We envision that with improved color tuning capabilities, this class of photoacids will be a more versatile tool for controlling proton-induced reactions in different systems, including biological reactions.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116081"},"PeriodicalIF":4.1,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432051","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
Exploring nitro-Tröger’s bases for ct-DNA and HSA sensing: An experimental and theoretical study 探索硝基特罗格碱基的ct-DNA和HSA传感:实验和理论研究
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-11 DOI: 10.1016/j.jphotochem.2024.116082
Eduam Oliveira Boeira , Victória Goulart Isoppo , Bruno Bercini de Araújo , Isadora Tisoco , Lilian Camargo da Luz , Otávio Augusto Chaves , Paulo Fernando Bruno Gonçalves , Bernardo Almeida Iglesias , Angélica Venturini Moro , Fabiano Severo Rodembusch
{"title":"Exploring nitro-Tröger’s bases for ct-DNA and HSA sensing: An experimental and theoretical study","authors":"Eduam Oliveira Boeira ,&nbsp;Victória Goulart Isoppo ,&nbsp;Bruno Bercini de Araújo ,&nbsp;Isadora Tisoco ,&nbsp;Lilian Camargo da Luz ,&nbsp;Otávio Augusto Chaves ,&nbsp;Paulo Fernando Bruno Gonçalves ,&nbsp;Bernardo Almeida Iglesias ,&nbsp;Angélica Venturini Moro ,&nbsp;Fabiano Severo Rodembusch","doi":"10.1016/j.jphotochem.2024.116082","DOIUrl":"10.1016/j.jphotochem.2024.116082","url":null,"abstract":"<div><div>In this study, we present Tröger’s base analogs synthesized through condensation between <em>p</em>-formaldehyde and methyl-nitro-anilines in good yields. Tröger’s bases exhibit absorption peaks around 350 nm attributed to allowed ππ* electronic transitions. The fluorescence emission at 380 nm showed no correlation with the position of the nitro group. Spectroscopic analyses employing UV–Vis absorption, steady-state fluorescence emission, and molecular docking calculations revealed that these Tröger’s bases interact effectively with ct-DNA and human serum albumin (HSA). These findings suggest that this class of compounds might serve as promising optical sensors for biomacromolecules.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116082"},"PeriodicalIF":4.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142539843","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 degradation of Bisphenol A under visible light by Cr-TiO2 nanoparticles Cr-TiO2 纳米粒子在可见光下增强双酚 A 的光催化降解能力
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-10 DOI: 10.1016/j.jphotochem.2024.116079
Angeles Mantilla , Enrique Samaniego Benitez , Isaac Montes Valenzuela , Guadalupe Romero Ortiz , Sandra Cipagauta Díaz , Luis Lartundo Rojas , Francisco Javier Tzompantzi Morales , Michelle Navarrete Magaña
{"title":"Enhanced photocatalytic degradation of Bisphenol A under visible light by Cr-TiO2 nanoparticles","authors":"Angeles Mantilla ,&nbsp;Enrique Samaniego Benitez ,&nbsp;Isaac Montes Valenzuela ,&nbsp;Guadalupe Romero Ortiz ,&nbsp;Sandra Cipagauta Díaz ,&nbsp;Luis Lartundo Rojas ,&nbsp;Francisco Javier Tzompantzi Morales ,&nbsp;Michelle Navarrete Magaña","doi":"10.1016/j.jphotochem.2024.116079","DOIUrl":"10.1016/j.jphotochem.2024.116079","url":null,"abstract":"<div><div>In this study, Cr-TiO<sub>2</sub> nanoparticles were synthesized using the sol–gel method, with TiO<sub>2</sub> photocatalyst doped varying Cr concentration. The photocatalysts were assessed for their efficacy in degrading Bisphenol-A under visible light (40 W, 3000 lm, and λ = 400–700 nm, with two maximum peaks at 450 and 545 nm). Optical, morphological, and structural characterization were conducted. TiO<sub>2</sub> doped with 1 % Cr exhibited a remarkable 99 % reduction in BPA degradation within 4 h, compared to the 51.5 % degradation observed with bare TiO<sub>2</sub>. This enhancement can be attributed to synergistic effects arising from increased surface area, reduced particle size, and the semi-spherical, uniform morphology of the nanoparticles. Photoluminescence analysis revealed that Cr ion incorporation slowed the recombination processes between photogenerated electron/hole pairs. XPS and Eg data facilitated the calculation of VB and CB values, indicating that the photocatalysts predominantly oxidize the BPA molecule through superoxide (<span><math><mrow><msubsup><mi>O</mi><mrow><mn>2</mn></mrow><mrow><mo>∙</mo><mo>-</mo></mrow></msubsup></mrow></math></span>) and hydroxyl (<span><math><mrow><msup><mrow><mi>HO</mi></mrow><mo>∙</mo></msup></mrow></math></span>) radicals.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116079"},"PeriodicalIF":4.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441359","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
Photocatalytic H2 evolution over MnCoSe2 decorated red phosphorus with S-scheme charge transfer route 用 S 型电荷转移路线在 MnCoSe2 装饰的红磷上光催化 H2 演化
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-10 DOI: 10.1016/j.jphotochem.2024.116051
Jiale Wang , Jingzhuo Tian , Jun Fan , Haipeng Teng , Enzhou Liu
{"title":"Photocatalytic H2 evolution over MnCoSe2 decorated red phosphorus with S-scheme charge transfer route","authors":"Jiale Wang ,&nbsp;Jingzhuo Tian ,&nbsp;Jun Fan ,&nbsp;Haipeng Teng ,&nbsp;Enzhou Liu","doi":"10.1016/j.jphotochem.2024.116051","DOIUrl":"10.1016/j.jphotochem.2024.116051","url":null,"abstract":"<div><div>The improvement of charge separation and utilization efficiency plays a vital role in attaining efficient photocatalytic conversion processes. In this study, MnCoSe<sub>2</sub>/RP heterojunctions were synthesized using the hydrothermal method and solvent evaporation method. The investigation indicates that the H<sub>2</sub> evolution rate (r<sub>H2</sub>) of 3 wt% MnCoSe<sub>2</sub>/RP can reach up to 2223.9 μmol·g<sup>−1</sup>·h<sup>−1</sup> in 0.35 M Na<sub>2</sub>S/0.25 M Na<sub>2</sub>SO<sub>3</sub> solution, which is 9.3 and 19.5 times higher than those of the RP (214.8 μmol·g<sup>−1</sup>·h<sup>−1</sup>) and MnCoSe<sub>2</sub> (108.4 μmol·g<sup>−1</sup>·h<sup>−1</sup>), respectively, as well as better than that of 3 wt% MnSe<sub>2</sub>/RP and 3 wt% CoSe<sub>2</sub>/RP prepared under similar conditions. This enhancement is ascribed to the synergistic promoting effect exerted by Co and Mn, leading to fast photoelectric response, low charge transfer resistance, efficient electron-hole separation capability, and suitable H<sub>2</sub> evolution overpotential. Besides, it is found that the charge transfer between MnCoSe<sub>2</sub> and RP follow S-scheme route, which can maintain the active electrons and holes with good redox properties. Furthermore, the r<sub>H2</sub> can be further improved by adding appropriate amount of (NH<sub>4</sub>)<sub>2</sub>HPO<sub>4</sub>, which can induce more H<sup>+</sup> for H<sub>2</sub> evolution by HPO<sub>4</sub><sup>−</sup> dissociation. Overall, this work shows that transition metal selenide can be a good candidate to form RP-based S-scheme photocatalyst for solar photocatalysis.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116051"},"PeriodicalIF":4.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142432050","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 colorimetric-fluorometric probe for detectation of hydrogen sulfide and bisulfite 用于检测硫化氢和亚硫酸氢的新型比色-荧光探针
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-10 DOI: 10.1016/j.jphotochem.2024.116074
Jiajia Chen, Mengyao Yuan, Yanjin Wang, Miaoyu Wang, Kuoxi Xu
{"title":"A novel colorimetric-fluorometric probe for detectation of hydrogen sulfide and bisulfite","authors":"Jiajia Chen,&nbsp;Mengyao Yuan,&nbsp;Yanjin Wang,&nbsp;Miaoyu Wang,&nbsp;Kuoxi Xu","doi":"10.1016/j.jphotochem.2024.116074","DOIUrl":"10.1016/j.jphotochem.2024.116074","url":null,"abstract":"<div><div>A novel fluorescent probe was developed for simultaneously detection of hydrogen sulfide and bisulfite. The probe underwent remarkable turn on fluorescence response and significantly different UV–vis spectral changes in the presence of hydrogen sulfide or bisulfite with different response rates. As a result, this probe could be a potential candidate for imaging of hydrogen sulfide and bisulfite in <em>vivo</em>.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116074"},"PeriodicalIF":4.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418241","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 “turn on” fluorescent and colorimetric ICT-based sensor for the detection of fluoride and cyanide ions 基于信息和通信技术的新型 "开启式 "荧光比色传感器,用于检测氟离子和氰离子
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-10 DOI: 10.1016/j.jphotochem.2024.116069
Xiu-Mei Song , Hai-Fei Ye , Jiang-Li Song , Yan-Jie Xi , Yancheng Wu
{"title":"A novel “turn on” fluorescent and colorimetric ICT-based sensor for the detection of fluoride and cyanide ions","authors":"Xiu-Mei Song ,&nbsp;Hai-Fei Ye ,&nbsp;Jiang-Li Song ,&nbsp;Yan-Jie Xi ,&nbsp;Yancheng Wu","doi":"10.1016/j.jphotochem.2024.116069","DOIUrl":"10.1016/j.jphotochem.2024.116069","url":null,"abstract":"<div><div>A novel sensor (Sensor <strong>2</strong>) containing a fluorescent core of aromatic naphthalene and a binding site of aminothiourea group has been synthesized and systematically investigated with regard to anions recognition. The results indicate that Sensor <strong>2</strong> shows fast response, high selectivity and sensitivity and reversibility to detect fluoride (F<sup>−</sup>) and cyanide (CN<sup>−</sup>). Adding F<sup>−</sup>/CN<sup>−</sup> into DMSO solution of Sensor <strong>2</strong> induces a distinct color change from colorless to yellow under ambient light and from blue to greenish-blue under 365 nm UV light. Besides, Sensor <strong>2</strong> can distinguish F<sup>−</sup> from CN<sup>−</sup> by fluorescent spectra based on the different sensitivities of Sensor <strong>2</strong> to F<sup>−</sup> and CN<sup>−</sup>, as well as “turn on” at the different emission wavelengths. The sensing mechanism has been proposed and verified by ESI-MS, <sup>1</sup>H NMR titration, DFT and TD-DFT calculations, which refers to the interaction of Sensor <strong>2</strong> with F<sup>−</sup> and CN<sup>−</sup> <em>via</em> forming hydrogen bond and subsequent deprotonation. The reversibility of Sensor <strong>2</strong> was also studied, confirming that it is a reusable sensor. In addition, the preliminary application of Sensor <strong>2</strong> for the detection of fluoride in toothpaste was successful.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116069"},"PeriodicalIF":4.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418728","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
Photocatalytic degradation of propranolol hydrochloride in aqueous medium employing bentonite-TiO2 nanocomposites 利用膨润土-二氧化钛纳米复合材料光催化降解水介质中的盐酸普萘洛尔
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-10 DOI: 10.1016/j.jphotochem.2024.116080
Tamires Pereira Rosa , Gustavo Lopes Colpani , Márcio Antônio Fiori , Noemi Raquel Checca Huaman , Giane Gonçalves Lenzi , Michel Zampieri Fidelis , Onelia Aparecida Andreo dos Santos , Rodrigo Brackmann
{"title":"Photocatalytic degradation of propranolol hydrochloride in aqueous medium employing bentonite-TiO2 nanocomposites","authors":"Tamires Pereira Rosa ,&nbsp;Gustavo Lopes Colpani ,&nbsp;Márcio Antônio Fiori ,&nbsp;Noemi Raquel Checca Huaman ,&nbsp;Giane Gonçalves Lenzi ,&nbsp;Michel Zampieri Fidelis ,&nbsp;Onelia Aparecida Andreo dos Santos ,&nbsp;Rodrigo Brackmann","doi":"10.1016/j.jphotochem.2024.116080","DOIUrl":"10.1016/j.jphotochem.2024.116080","url":null,"abstract":"<div><div>Propranolol hydrochloride, a widely used medication, contaminates water bodies as it’s not fully metabolized by humans. Conventional water treatment methods are ineffective against it, necessitating more advanced approaches like heterogeneous photocatalysis. TiO<sub>2</sub>, often used as a photocatalyst, is typically combined with other materials to form nanocomposites, enhancing its activity. This study evaluated TiO<sub>2</sub> synthesized via sol–gel method with organophilized bentonite for propranolol removal. Composites were prepared through solvothermal treatment, and an experimental design assessed the TiO<sub>2</sub>/bentonite ratio, time, and temperature of the solvothermal treatment effects on photocatalytic activity. Increasing these parameters led to a nanocomposite capable of removing over 99 % of propranolol in water after 60 min of adsorption followed by 150 min of photocatalysis. The nanocomposite remained active after four treatment cycles. Characterization revealed TiO<sub>2</sub> (anatase) nanoparticles with a size range of 6–13 nm dispersed in bentonite’s fine tubular structures. This research underscores the potential of TiO<sub>2</sub>-based nanocomposites in addressing pharmaceutical contamination in water bodies efficiently.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":"459 ","pages":"Article 116080"},"PeriodicalIF":4.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142418729","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
Photodynamic surfaces coated with porphyrin-derived polymers to eradicate Staphylococcus aureus biofilms 涂有卟啉衍生聚合物的光动力表面可消除金黄色葡萄球菌生物膜
IF 4.1 3区 化学
Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-10 DOI: 10.1016/j.jphotochem.2024.116083
María B. Ballatore , Javier E. Durantini , Claudia Solis , Milena B. Boarini , Miguel Gervaldo , Luis Otero , María E. Milanesio , Edgardo N. Durantini
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