Luminescence最新文献_第8页

Transient Photocurrent Responses of Sr1-xCexTiO3 Perovskites Under Visible Light Illumination for Photovoltaic Applications 用于光伏应用的 Sr1-xCexTiO3 Perovskites 在可见光照射下的瞬态光电流响应。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-12 DOI: 10.1002/bio.4918

S. Vinod Kumar, D. Prakash Babu, S. Ponkumar, R. Uthrakumar, K. Kaviyarasu, A. Nivetha, Muhammad Sheraz Ahmad, Mir Waqas Alam

{"title":"Transient Photocurrent Responses of Sr1-xCexTiO3 Perovskites Under Visible Light Illumination for Photovoltaic Applications","authors":"S. Vinod Kumar, D. Prakash Babu, S. Ponkumar, R. Uthrakumar, K. Kaviyarasu, A. Nivetha, Muhammad Sheraz Ahmad, Mir Waqas Alam","doi":"10.1002/bio.4918","DOIUrl":"10.1002/bio.4918","url":null,"abstract":"<div>\u0000 \u0000 The objective of this study was to synthesize strontium titanate (Sr1-xCexTiO3) doped with Ce3+ by solid state method. Its crystalline structure is Sr1-xCexTiO3, and its bandgap ranges from ~3.3 to ~2.7 eV. In the photoluminescence of samples excited at 288 nm, the maximum emission of blue light was observed at 380 and 390 nm. Photocatalytic results show that dye molecules have a high absorbance, whereas their surface area is large. According to a line sweep voltammetric plot (LSV), illumination increases the current density by 0.4 μA cm−2 compared with dark conditions. It was demonstrated that the material changed from n-type to p-type under doping. Chronoamperometry spectra were obtained for sample Sr1-xCexTiO3 (x = 0, 0.005, 0.01, 0.03, 0.05) when an electrical voltage of 0.8 V was applied versus NHE. The plots indicate an increase in the current density under “light ON” conditions and a decrease under “light OFF” conditions. As Ce3+ concentration increases, the photocurrent increases until about 3 mol%, after which it decreases abruptly.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 11","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631460","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

Strong Red Luminescence in Europium Complexes Solution for Anti-Counterfeiting Applications 用于防伪应用的铕络合物溶液中的强红色发光。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-12 DOI: 10.1002/bio.70012

Xue Yang, Dangli Gao, Jia Yu, Xiangyu Zhang, Qing Pang, Ruipeng Chai, Sining Yun

{"title":"Strong Red Luminescence in Europium Complexes Solution for Anti-Counterfeiting Applications","authors":"Xue Yang, Dangli Gao, Jia Yu, Xiangyu Zhang, Qing Pang, Ruipeng Chai, Sining Yun","doi":"10.1002/bio.70012","DOIUrl":"10.1002/bio.70012","url":null,"abstract":"<div>\u0000 \u0000 Eu3+-activated phosphors with distinct photoluminescence properties are well-suited for diverse applications, including lighting, sensing, and imaging. Despite their potential, the large-scale and energy-efficient production of Eu3+-doped phosphors remains a significant challenge for industrial applications. This research delves into the luminescent performance of Eu3+ ions in nitrate solutions at room temperature by employing detailed spectroscopic characterization. Results reveal vibrant red luminescence at 594 nm and 616 nm in europium nitrate solutions, irrespective of concentration or solvent. We proposed a luminescent mechanism based on the formation of coordination complexes in nitrate solution. Furthermore, the investigation highlights the superior performance of NH2- over CH2-ligands in mitigating the deactivation of Eu3+ emissive state induced by OH− oscillators in H2O solvent, leading to enhanced photoluminescence. Particularly, europium nitrate solutions without lengthy preparation exhibit ligand-dependent luminescent feature, showcasing potential applications in anti-counterfeiting and coordination group structure detection. This study here not only enhances our understanding of rare earth luminescence mechanisms, but also broadens the range of rare earth luminescent materials.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 11","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631453","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

Investigation of CuO/ITO Photoelectrode Fabricated by PVD for Efficient Photoelectrochemical Water Splitting and Hydrogen Evolution 研究用 PVD 法制造的 CuO/ITO 光电极用于高效光电化学水分离和氢气转化。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-12 DOI: 10.1002/bio.70020

Muhammad Junaid, Noor-ul-Ain, Mohamed Sharaf, Mohammad El-Meligy, Nazir Ahmad

{"title":"Investigation of CuO/ITO Photoelectrode Fabricated by PVD for Efficient Photoelectrochemical Water Splitting and Hydrogen Evolution","authors":"Muhammad Junaid,  Noor-ul-Ain, Mohamed Sharaf, Mohammad El-Meligy, Nazir Ahmad","doi":"10.1002/bio.70020","DOIUrl":"10.1002/bio.70020","url":null,"abstract":"<div>\u0000 \u0000 Hydrogen and renewable fuels were generated using cost-effective and efficient electrocatalysts for water splitting. In this work, a CuO-based photocathode is used for the water splitting to generate hydrogen energy by PVD technique. The XRD analysis reveals the deposition of CuO thin film on ITO substrates, which is monoclinic. The XRD and LSV analysis of CuO confirmed the type of semiconductor and observed to be P-type semiconductor. SEM study of CuO confirmed the shape, morphology to be a circular and regular shape. The grain size of deposited CuO thin film was found to be 18 nm. The absorption and transmission of CuO thin film were observed through UV spectroscopy analysis and were found to be better photocatalyst in visible range 415–425 nm. The transmittance of the prepared thin film was noted to be maximum 7.6% in the UV range (280–300 nm). The band gap was also measured employing the Tauc plot and found to be 2.98 eV, which is most favorable for water splitting application. FTIR study showed the stretching, vibration, and the functional group of the deposited CuO thin film; the broad band of stretching of Cu-O in monoclinic CuO was observed at the range of 500–700 cm−1, and further peaks were also noted at the range of 1500–1600 cm−1. The linear sweep voltammetry (LSV) of CuO thin film was calculated in the absence of solar spectra and the presence of solar spectra and observed to be enhanced in current under solar spectra. The solar light to hydrogen emission percentage (STH %) of CuO through LSV was observed to be 2.04% under solar spectra. The low Nyquist curve of blank ITO and CuO-coated ITO substrate via electrochemical impedance spectroscopy (EIS) analysis was observed, which confirmed the enhancement of EIS of CuO-coated ITO. The hydrogen generation rate was also calculated by electrochemical cell and observed to be 5325.21 mol g−1 for 6 h.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 11","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631394","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

Schiff Base Mediated Synthesis of Novel Imidazolidine-4-One Derivatives for Potential Antimicrobial and Anthelmintic Activities 希夫碱介导的新型咪唑烷-4-酮衍生物的合成，用于潜在的抗菌和驱虫活性。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-11 DOI: 10.1002/bio.70026

Naresh Babu Chilamakuru, Triveni Singirisetty, Anoop Bodapati, Sudha Divya Madhuri Kallam, Vinod Kumar Nelson, Punna Rao Suryadevara, Selvankumar Thangaswamy

{"title":"Schiff Base Mediated Synthesis of Novel Imidazolidine-4-One Derivatives for Potential Antimicrobial and Anthelmintic Activities","authors":"Naresh Babu Chilamakuru, Triveni Singirisetty, Anoop Bodapati, Sudha Divya Madhuri Kallam, Vinod Kumar Nelson, Punna Rao Suryadevara, Selvankumar Thangaswamy","doi":"10.1002/bio.70026","DOIUrl":"10.1002/bio.70026","url":null,"abstract":"<div>\u0000 \u0000 This study focuses on developing novel antimicrobials to combat drug-resistant pathogens, addressing compounds failing clinical trials due to inadequate physicochemical properties. Sixteen imidazolidine-4-one derivatives were synthesized by extensive evaluation using molecular docking, absorption, distribution, metabolism, excretion (ADME) predictions, and antimicrobial testing. Molecular docking studies conducted with Schrödinger's Glide revealed that compounds S4 and G8 exhibited superior docking scores of −7.839 and −7.776, respectively. The G series outperformed the S series in scores. ADME analysis confirmed all compounds adhered to Lipinski's rule of five. In addition, IR and NMR provided details about the structure of the compounds. Antimicrobial activity was assessed against Escherichia coli, Staphylococcus aureus, and Candida albicans, with compounds G2 and S2 showing exceptional minimum inhibitory concentration (MIC) values of 6.25 μg/mL against E. coli. S2 also demonstrated impressive activity against S. aureus (MIC 3.12 μg/mL), and S4 exhibited potent activity against C. albicans (MIC 0.8 μg/mL) than fluconazole (1.6 μg/mL). Additionally, antihelmintic activity was evaluated, with G1, G3, G8, S2, S4, S7, and S8 showing effective paralysis and death time 20 min and below at 50 mg/mL concentration. These results underscore the potential of new imidazolidine-4-one derivatives as suitable sources to develop a drug candidate to treat resistant infections.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 11","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631450","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

Advanced Polymer Composites for Effective Removal of Perfluorooctanoic Acid (PFOA) Pollutants From Aqueous Solutions 有效去除水溶液中全氟辛酸 (PFOA) 污染物的先进聚合物复合材料。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-11 DOI: 10.1002/bio.70006

Vijayalakshmi Rajadurai, Umaiyambika Neduvel Annal, Duraisamy Elango, Vivek Mariappan Santhi, Sandhanasamy Devanesan, Saurav Dixit, Nikolai Ivanovich Vatin, Huang-Mu Lo

{"title":"Advanced Polymer Composites for Effective Removal of Perfluorooctanoic Acid (PFOA) Pollutants From Aqueous Solutions","authors":"Vijayalakshmi Rajadurai, Umaiyambika Neduvel Annal, Duraisamy Elango, Vivek Mariappan Santhi, Sandhanasamy Devanesan, Saurav Dixit, Nikolai Ivanovich Vatin, Huang-Mu Lo","doi":"10.1002/bio.70006","DOIUrl":"10.1002/bio.70006","url":null,"abstract":"<div>\u0000 \u0000 Perfluorooctanoic acid (PFOA) is extensively utilized in industrial applications, posing significant environmental and health risks because of its persistence and toxicity. Effective elimination methods are vital to mitigate its adverse effects on ecosystems and human health. In this study, we investigate the potential of biomass-derived polymer composite for PFOA adsorption in aqueous solution. Due to its unique surface interaction and porosity, the polymer-based composite derived from sustainable biomass sources exhibits favorable adsorption characteristics. The physicochemical properties of polymer composites were characterized using FTIR, XRD, SEM-EDS, XPS, and BET analysis. The polymer composites reached a maximum PFOA adsorption efficiency about 93.3% under optimized conditions determined by Box Behnken Design. The Langmuir isotherm model revealed and provided an adsorption capacity of PFOA about 13.98 mg g−1. Moreover, the polymer-based composites demonstrated reusability, with removal rates of PFOA ranging from 93.3% to 52% over the course of four cycles after desorption. Our findings underscore the possibility of biomass-derived polymer composites as long-term and effective adsorbents for PFOA removal from aqueous environments.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 11","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631392","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

A “Turn-On” Fluorescent Probe for the Visual Detection of Total Iron in Wine 用于目测葡萄酒中总铁含量的 "开启式 "荧光探针。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-10 DOI: 10.1002/bio.70021

Ning Duan, Leyuan Ding, Shaoxiang Yang, Hongyu Tian, Baoguo Sun

引用次数: 0

Luminescent Silver Nanoparticles Biosynthesis Using Couroupita guianensis Flower Extract: Antibacterial and Anticancer Potential 利用Couroupita guianensis花提取物生物合成发光银纳米粒子：抗菌和抗癌潜力

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-10 DOI: 10.1002/bio.70005

P. Saritha, S. Arunprakash, P. Srinivasan, Mysoon M. Al-Ansari, Subhav Singh, Saurav Dixit

{"title":"Luminescent Silver Nanoparticles Biosynthesis Using Couroupita guianensis Flower Extract: Antibacterial and Anticancer Potential","authors":"P. Saritha, S. Arunprakash, P. Srinivasan, Mysoon M. Al-Ansari, Subhav Singh, Saurav Dixit","doi":"10.1002/bio.70005","DOIUrl":"10.1002/bio.70005","url":null,"abstract":"<div>\u0000 \u0000 Green synthesis of nanoparticles has become a significant area of research, driven by the demand for sustainable, economical, and environmentally friendly processes, particularly in biomedical applications. In this study, silver nanoparticles (AgNPs) were produced using 10 g of Couroupita guianensis flower extract through a straightforward and environmentally friendly method. The biosynthesized AgNPs were characterized using UV–Vis spectroscopy, XRD, FTIR, SEM, and EDS techniques, confirming their successful formation and structural properties. The antibacterial efficacy of the AgNPs was assessed against Escherichia coli and Listeria monocytogenes, achieving 99.5% inactivation for E. coli and 99.3% inactivation for L. monocytogenes after 120 min of visible light exposure. Additionally, the AgNPs showed notable anticancer effects against breast cancer cells (MDA-MB-231), displaying a dose-dependent decrease in cell viability, with reductions of 15%, 30%, 72%, and 86% observed at concentrations of 25, 50, 75, and 100 μg/mL, respectively. The spherical morphology of the synthesized AgNPs contributed to enhanced interactions with bacterial and cancer cells, underpinning their effectiveness. Furthermore, the mechanisms underlying these antibacterial and anticancer effects were analyzed, highlighting the unique phytochemical properties of the extract that assist in biosynthesis and activity enhancement. These findings suggest that green-synthesized AgNPs derived from C. guianensis flower extract hold significant potential for use in biomedical applications, particularly in antibacterial and anticancer therapies.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 11","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142631411","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

Fruit Extract Mediated Formation of Luminescent Titanium Dioxide Nanometer-Sized Particles: An Innovative Strategy in Domain of Photodecomposition and Germicidal Properties 水果提取物介导的纳米级二氧化钛发光粒子的形成：光分解和杀菌性能领域的创新战略。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-08 DOI: 10.1002/bio.70025

G. Monikadevi, S. Vijayakumar, P. Vanathi, S. Prathipkumar, Mohammad Khalid Al-Sadoon, P. Srinivasan, E. Vidhya

{"title":"Fruit Extract Mediated Formation of Luminescent Titanium Dioxide Nanometer-Sized Particles: An Innovative Strategy in Domain of Photodecomposition and Germicidal Properties","authors":"G. Monikadevi, S. Vijayakumar, P. Vanathi, S. Prathipkumar, Mohammad Khalid Al-Sadoon, P. Srinivasan, E. Vidhya","doi":"10.1002/bio.70025","DOIUrl":"10.1002/bio.70025","url":null,"abstract":"<div>\u0000 \u0000 Discoveries in nanotechnologies are placing a great deal of attention on greener strategies that use harmless substances and moderated reactions to promote healthy development. This work used a straightforward, innovative, and cost-effective sustainable approach to produce bio-augmented TiO2 nanometer-sized particles (NMSP) by applying a water-based extract of the star fruit as a stabilization and reduction agent. A variety of techniques, comprising UV–Vis, XRD, FT-IR, FE-SEM with EDAX, and TEM, have been employed to investigate the formed TiO2 NMSP. The germicidal properties of formed TiO2 NMSP towards germs have been investigated by implementing an agar-based pore plate technique. Congo red and methylene blue dyes have been applied to assess photodecomposition activity. The TiO2 NMSP exhibited significant germicidal efficacy versus many pathogenic microbes. The maximum degradation percentages of Congo red and methylene blue were 89.2% and 83.7%, achieved after 60 and 70 min, respectively. Consequently, it is determined that the selected NMSP composition enhanced germicidal and photodecomposition capabilities. The combined effort may serve as an effective method for eliminating color degradation concerning effluent and could potentially be employed in the field of medicine to address antibiotic resistance.\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 11","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142607262","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

A Sensitive and Quick Fluorescent Sensor for the “Turn-On” Detection and Imaging of Glutathione Based on Sulfur Quantum Dots and MnO2 Nanosheets 基于硫量子点和二氧化锰纳米片的谷胱甘肽 "开启 "检测和成像的灵敏快速荧光传感器。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-07 DOI: 10.1002/bio.4929

Zhenlin Hu, Min Cheng, Yuanyan Zhang, Leyao Zhang, Huifeng Xu, Xi Zhu

引用次数: 0

A Hemicyanine-Based Highly Sensitive and Selective Near-Infrared Fluorescent Probe for Fe3+ in Aqueous Media 一种基于半氰基的高灵敏度和选择性近红外荧光探针，用于检测水介质中的 Fe3+。

IF 3.2 4区化学

Luminescence Pub Date : 2024-11-07 DOI: 10.1002/bio.70024

Jia-Hai Ye, Yingming Zhang, Qiang Zhu, Zhijian Chang, Weijiang He

{"title":"A Hemicyanine-Based Highly Sensitive and Selective Near-Infrared Fluorescent Probe for Fe3+ in Aqueous Media","authors":"Jia-Hai Ye, Yingming Zhang, Qiang Zhu, Zhijian Chang, Weijiang He","doi":"10.1002/bio.70024","DOIUrl":"10.1002/bio.70024","url":null,"abstract":"<div>\u0000 \u0000 Ferric ion is widely distributed in human cells and an important component of hemoglobin, which can promote the transportation of blood in the human body. Its ability to bind with oxygen is essential for participating in oxidation reactions and enzymatic reactions. Deficiency of iron (III) and excessive accumulation of iron in the blood can cause many health problems in the body, such as anemia, loss of appetite, fibrosis, reduced work routines, and decreased immunity. As a fluorescent dye, cyanine has the advantages of high fluorescence quantum yield, good optical and chemical stability, excitation and emission wavelengths in the near-infrared region, high molar extinction coefficient, and small influence on pH variation. It is a fluorescent dye that modern scholars choose more. A new near-IR hemicyanine derivative bearing 1,3-dithiane moiety was developed as an efficient fluorescence probe 1 for the detection of Fe3+ in aqueous medium (THF/H2O, 1:1, v:v). This near-IR fluorescence probe 1 exhibits high sensitivity and selectivity toward Fe3+ sensing with detection limit of 0.5 μM under lager scope of pH value (pH = 2–12).\u0000 </div>","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 11","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142607260","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