Luminescence最新文献_第7页

Luminescence properties of Sr2Ga2GeO7:Bi3+ phosphors and temperature sensing characteristics of co-doped Sm3+ Sr2Ga2GeO7:Bi3+ 荧光粉的发光特性和共掺杂 Sm3 的温度传感特性。

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-30 DOI: 10.1002/bio.4907

Jiangyun Wan, Haoyi Wu, Yanmei Li, Yonglin Chen, Chaoyue Peng, Geng Chen, Yihua Hu

{"title":"Luminescence properties of Sr2Ga2GeO7:Bi3+ phosphors and temperature sensing characteristics of co-doped Sm3+","authors":"Jiangyun Wan, Haoyi Wu, Yanmei Li, Yonglin Chen, Chaoyue Peng, Geng Chen, Yihua Hu","doi":"10.1002/bio.4907","DOIUrl":"10.1002/bio.4907","url":null,"abstract":"As one of the fundamental physical quantities, temperature is extremely important in various fields. In order to study the temperature sensing characteristics of dual-emitting center phosphors, Bi3+-doped and Bi3+/Sm3+-doped Sr2Ga2GeO7 phosphors were synthesized by high-temperature solid-phase method. Under 312 nm excitation, the Sr2Ga2GeO7:Bi3+ phosphor exhibits a blue broadband emission corresponding to the 3P1 → 1S0 transition of Bi3+ ions. By testing the temperature change spectrum of phosphors, it was found that Bi3+ exhibited strong thermal sensitivity. However, due to the fact that single ion doped phosphors are easily affected by other factors when applied to the field of temperature sensing, based on the thermal sensitivity of Bi3+, Sm3+ with low temperature sensitivity was selected as the co-doped ion, and it was found that the two ions had different thermal quenching characteristics when the temperature change spectrum was tested. Using the temperature detection method based on the fluorescence intensity ratio (FIR) of the dual emission centers, it was found that the best absolute sensitivity Sa was 3.125% K−1 and the maximum relative sensitivity Sr was 1.275% K−1 in the range of 303–423 K. These results show that Sr2Ga2GeO7:Bi3+/Sm3+ phosphors have broad application prospects in the field of optical temperature sensing.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 10","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142331243","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 mixed Ce/Eu metal–organic framework for ratiometric detection of Al3+ ion 用于按比率检测 Al3+ 离子的 Ce/Eu 混合金属有机框架。

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-29 DOI: 10.1002/bio.4909

Dong Chen, Yating Wan, Yanping Li, Bowen Qin, Bing Zhang, Mengyao Wang, Yarui Cai, Yanxia Li, Weidong Li, Zhenling Wang

引用次数: 0

Investigation of red-emitting CaMoO4: Eu3+ phosphor by partitioning of substitutional PO43− ions via solid-state reaction method 通过固态反应方法研究取代型 PO43- 离子分区的红色发光 CaMoO4: Eu3+ 荧光粉

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-25 DOI: 10.1002/bio.4905

Machaba L. A. Letswalo, Leelakrishna Reddy, Avula Balakrishna, Hendrik C. Swart, Odireleng M. Ntwaeaborwa

{"title":"Investigation of red-emitting CaMoO4: Eu3+ phosphor by partitioning of substitutional PO43− ions via solid-state reaction method","authors":"Machaba L. A. Letswalo, Leelakrishna Reddy, Avula Balakrishna, Hendrik C. Swart, Odireleng M. Ntwaeaborwa","doi":"10.1002/bio.4905","DOIUrl":"https://doi.org/10.1002/bio.4905","url":null,"abstract":"To investigate the impact of PO43− anionic groups, the trivalent europium ion-doped calcium molybdate (CaMoO3-PO4:xEu3+, where x = 0.5, 1.0, 1.5, 2.0, and 2.5 mol%) phosphors were synthesized using the solid-state reaction method. The detailed study of the phosphor materials was carried out by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), optical diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. The XRD results indicate that the substitution of PO43− anion and Eu3+ dopant ion did not affect the crystal structures of the CaMoO4 phosphors. Ultraviolet–visible (UV–vis) absorption analysis revealed the change of absorption edge of both un-doped and Eu3+-doped CaMoO4-PO4 phosphors. Under the 394 nm UV-excitation, the recorded PL spectra showed an intense peak at 615 nm corresponding to the Eu3+: 5D0 → 7F2 transition. The results of the Commission Internationale de l'Eclairage (CIE) diagram reported that the color of the emissions lies in the red color zone and there is no change in the CIE coordinates of the overall emission for Eu3+-doped CaMoO4-PO4 as Eu concentration changes. Thus, these observations led to finding the best red components for white light-emitting diode applications.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 9","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bio.4905","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320761","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

Fluorescence capturing behaviour of cyanobacterial resilience: Insights into UV-exposed ecosystems and its environmental applications 蓝藻复原力的荧光捕获行为：紫外线暴露生态系统及其环境应用的启示

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-25 DOI: 10.1002/bio.4898

Prathima R., Kanthesh M Basalingappa, Sai Kavya D., Arjun K. R., Girish Kanavi K., Suresh J., Karthikeyan Murugesan, Anjuna Radhakrishnan, Deepa Kandaswamy, Bedanta Roy, Selvankumar Thangaswamy, Bharath Selvaraj, Jaganathan R, Maghimaa M

{"title":"Fluorescence capturing behaviour of cyanobacterial resilience: Insights into UV-exposed ecosystems and its environmental applications","authors":"Prathima R., Kanthesh M Basalingappa, Sai Kavya D., Arjun K. R., Girish Kanavi K., Suresh J., Karthikeyan Murugesan, Anjuna Radhakrishnan, Deepa Kandaswamy, Bedanta Roy, Selvankumar Thangaswamy, Bharath Selvaraj, Jaganathan R, Maghimaa M","doi":"10.1002/bio.4898","DOIUrl":"https://doi.org/10.1002/bio.4898","url":null,"abstract":"Cyanobacteria are resilient microorganisms and thrive in environments exposed to UV radiation, ranging from ocean surfaces to scorching hot springs and dry expanses. ‘Cyanobacterial Resilience’ refers to their ability to withstand UV radiation, revealing intricate genomic secrets and adaptive mechanisms ensuring survival. These mechanisms include metabolic adaptations, robust DNA repair systems and UV-protective compounds such as Scytonemin and Mycosporine, vital for shielding against UV radiation survival. Cyanobacteria are crucial pioneers in UV-exposed ecosystems, highlighting their resilience and adaptability. Some cyanobacteria exhibit luminescence, emitting blue-green light due to phycobiliproteins, while bioluminescence in cyanobacteria, if it occurs, involves different compounds rather than luciferins and luciferase enzymes. This luminescence holds promise for various biotechnological applications, such as biosensors, imaging probes and carbon sequestration, for participating in photocatalytic processes for water purification and CO2 conversion, and contributes to solar simulation studies to advance photosynthesis and renewable energy technologies. The versatile applications of these materials highlight their ecological importance and potential in addressing global challenges. In conclusion, ‘Cyanobacterial Resilience’ highlights the remarkable adaptation strategies of cyanobacteria in UV-exposed environments. It emphasises their role as pioneers and innovators in biological and technological domains, providing insights into their enduring impact on ecosystems and scientific advancement.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 9","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320692","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

Visible-light enhanced tetracycline degradation via SnO2/TiO2-Ni@rGO ternary heterostructures 通过 SnO2/TiO2-Ni@rGO 三元异质结构实现可见光增强型四环素降解

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-25 DOI: 10.1002/bio.4906

Johnrose Arul Hency Sheela, Chaitanya Kumar Kunapalli, P. Saravanan, Kothalam Radhakrishnan, Ayyar Dinesh, Mohammad Ahmad Wadaan, L. Praburaman, M. Sherlin Nivetha

{"title":"Visible-light enhanced tetracycline degradation via SnO2/TiO2-Ni@rGO ternary heterostructures","authors":"Johnrose Arul Hency Sheela, Chaitanya Kumar Kunapalli, P. Saravanan, Kothalam Radhakrishnan, Ayyar Dinesh, Mohammad Ahmad Wadaan, L. Praburaman, M. Sherlin Nivetha","doi":"10.1002/bio.4906","DOIUrl":"https://doi.org/10.1002/bio.4906","url":null,"abstract":"This study explores the synthesis, characterization, and photocatalytic performance of a SnO2/TiO2-Ni@rGO nanocomposite for tetracycline (TC) degradation under visible light irradiation. The nanocomposite was precisely designed to enhance structural stability, charge transfer efficiency, and catalytic activity. X-ray diffraction (XRD) analysis confirmed the structural integrity of the SnO2/TiO2-Ni@rGO composite, demonstrating excellent reusability and resistance to photo-corrosion after multiple cycles. Photocatalytic experiments revealed that the SnO2/TiO2-Ni@rGO nanocomposite significantly outperformed individual SnO2/TiO2-Ni and rGO catalysts, achieving a remarkable 94.6% degradation of TC within 60 min. The degradation process followed pseudo-first-order kinetics, with a rate constant (k) of 0.046 min−1. The Z-scheme charge transfer mechanism facilitated efficient separation and migration of photogenerated charge carriers, generating reactive oxygen species such as superoxide (•O2−) and hydroxyl (•OH) radicals crucial for the oxidation of TC. Radical scavenger studies confirmed that superoxide and hydroxyl radicals were the primary active species. The SnO2/TiO2-Ni@rGO composite also exhibited excellent reusability, maintaining high catalytic performance over four consecutive cycles. These findings suggest that the SnO2/TiO2-Ni@rGO nanocomposite is a promising candidate for the efficient and sustainable photocatalytic degradation of persistent organic pollutants like TC, offering significant potential for environmental remediation applications.","PeriodicalId":49902,"journal":{"name":"Luminescence","volume":"39 9","pages":""},"PeriodicalIF":3.2,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142316925","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 novel coumarin–naphthalimide-based ratiometric fluorescent probe for efficiently monitoring of hydrazine in environmental water 基于香豆素-萘二甲酰亚胺的新型比率荧光探针，用于有效监测环境水体中的肼。

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-24 DOI: 10.1002/bio.4908

Zhong Luo, Changchun Yuan, Zhichun Li, Wenbing Ma

引用次数: 0

Fabrication of one-dimensional Zn-doped Bi2S3 nanorods for photodiode applications 制备用于光电二极管的一维掺锌 Bi2S3 纳米棒。

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-24 DOI: 10.1002/bio.4901

Jayachandhiran Arumugam, Amal George, P. Saravanan, Subramani Rahul, Alphonse Dhayal Raj, Mohammed F. Albeshr, Savarenathan Johnsundaram, Thangaswamy Selvankumar, Duraisamy Karthika, Jothi Vinoth Kumar

引用次数: 0

An imidazole-copper(I) metallacycle complex exhibiting thermochromic fluorescence 显示热致变色荧光的咪唑-铜（I）金属环复合物

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-17 DOI: 10.1002/bio.4902

Zongsu Yu, Dayu Wu

引用次数: 0

Sandwiched naphthyl carbazole: Inversion Circularly Polarized Luminescence based on a pull-push electron valve strategy 夹层萘基咔唑：基于拉推电子阀策略的反转环形偏振光

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-16 DOI: 10.1002/bio.4880

Qi Qi, Li Junfeng, Sun Yueming

引用次数: 0

A highly specific red-emitting fluorescent probe for monitoring of Cu2+ in living cells and zebrafish 用于监测活细胞和斑马鱼体内 Cu2+ 的高特异性红色发光荧光探针

IF 3.2 4区化学

Luminescence Pub Date : 2024-09-16 DOI: 10.1002/bio.4886

Shuai Kong, Yan Zhang, Lianke Xie, Guodong Qi, Yanping Li, Haitao Dai, Qiubo Qi, Yimin Chen

引用次数: 0