1
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Albalawi MA. Modification of wood lignin and integration with multifunctional polyester nanocomposite. Int J Biol Macromol 2024; 267:131466. [PMID: 38599420 DOI: 10.1016/j.ijbiomac.2024.131466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/25/2024] [Accepted: 04/06/2024] [Indexed: 04/12/2024]
Abstract
A simple strategy was introduced to develop fluorescent wood with the ability to alter its color when exposed to both visible and ultraviolet lights. Injecting a combination of europium and dysprosium doped aluminate (EDA; 7-12 nm) nanoparticles and polyester resin (PET) into a lignin-modified wood (LMW) produced a translucent smart wooden window with fluorescence and afterglow emission properties. In order to prevent formation of aggregates and improve the preparation process of transparent woods, EDA must be properly disseminated in the polyester matrix. We analyzed the fluorescent wood samples using a variety of spectroscopic and microscopic methods, including energy-dispersive X-ray (EDX), scanning electron microscopy (SEM), photoluminescence spectra, and hardness tests. We found that the photoluminescent woods had an excitation peak at 365 nm and emission peaks at 437 nm and 517 nm. The translucent luminous woods showed rapid and reversible emission response to ultraviolet light. Fluorescence emission was detected for samples with lower EDA content, and afterglow emission was detected for wood samples with higher EDA content. Increases in EDA content were associated with improvements in water resistance and ultraviolet radiation protection in the EDA@PET-infiltrated wood.
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Affiliation(s)
- Marzough Aziz Albalawi
- Department of Chemistry, Alwajh College, University of Tabuk, Tabuk 71421, Saudi Arabia.
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2
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Abdu MT, Khattab TA, Abdelrahman MS. Development of Photoluminescent and Photochromic Polyester Nanocomposite Reinforced with Electrospun Glass Nanofibers. Polymers (Basel) 2023; 15:polym15030761. [PMID: 36772063 PMCID: PMC9922016 DOI: 10.3390/polym15030761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
A polyester resin was strengthened with electrospun glass nanofibers to create long-lasting photochromic and photoluminescent products, such as smart windows and concrete, as well as anti-counterfeiting patterns. A transparent glass@polyester (GLS@PET) sheet was created by physically immobilizing lanthanide-doped aluminate (LA) nanoparticles (NPs). The spectral analysis using the CIE Lab and luminescence revealed that the transparent GLS@PET samples turned green under ultraviolet light and greenish-yellow in the dark. The detected photochromism can be quickly reversed in the photoluminescent GLS@PET hybrids at low concentrations of LANPs. Conversely, the GLS@PET substrates with the highest phosphor concentrations exhibited sustained luminosity with slow reversibility. Transmission electron microscopic analysis (TEM) and scanning electron microscopy (SEM) were utilized to examine the morphological features of lanthanide-doped aluminate nanoparticles (LANPs) and glass nanofibers to display diameters of 7-15 nm and 90-140 nm, respectively. SEM, energy-dispersive X-ray spectroscopy (EDXA), and X-ray fluorescence (XRF) were used to analyze the luminous GLS@PET substrates for their morphology and elemental composition. The glass nanofibers were reinforced into the polyester resin as a roughening agent to improve its mechanical properties. Scratch resistance was found to be significantly increased in the created photoluminescent GLS@PET substrates when compared with the LANPs-free substrate. When excited at 368 nm, the observed photoluminescence spectra showed an emission peak at 518 nm. The results demonstrated improved hydrophobicity and UV blocking properties in the luminescent colorless GLS@PET hybrids.
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Affiliation(s)
- Mahmoud T. Abdu
- Metallurgical Engineering Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt
- Mechanical Engineering Department, College of Engineering, University of Bisha, P.O. Box 421, Bisha 61922, Saudi Arabia
| | - Tawfik A. Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt
- Correspondence: or
| | - Maiada S. Abdelrahman
- Metallurgical Engineering Department, Faculty of Engineering, Cairo University, Giza 12613, Egypt
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3
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Alenazi DA. Development of color-tunable photoluminescent polycarbonate smart window immobilized with silica-coated lanthanide-activated strontium aluminum oxide nanoparticles. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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4
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Alatawi NM, Alkhamis KM, Munshi AM, Althagafi I, El‐Metwaly NM. Dual mode stimuli‐responsive color‐tunable transparent photoluminescent anticounterfeiting polycarbonate electrospun nanofibers embedded with lanthanide‐doped aluminate. J Appl Polym Sci 2023. [DOI: 10.1002/app.53634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Nada M. Alatawi
- Department of Chemistry College of Science, University of Tabuk Tabuk Saudi Arabia
| | - Kholood M. Alkhamis
- Department of Chemistry College of Science, University of Tabuk Tabuk Saudi Arabia
| | - Alaa M. Munshi
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Ismail Althagafi
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
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5
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Ullah F, Ullah S, Khan MFA, Mustaqeem M, Paracha RN, Rehman MFU, Kanwal F, Hassan SSU, Bungau S. Fluorescent and Phosphorescent Nitrogen-Containing Heterocycles and Crown Ethers: Biological and Pharmaceutical Applications. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196631. [PMID: 36235167 PMCID: PMC9573242 DOI: 10.3390/molecules27196631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/01/2022] [Accepted: 10/03/2022] [Indexed: 11/29/2022]
Abstract
Fluorescent molecules absorb photons of specific wavelengths and emit a longer wavelength photon within nanoseconds. Recently, fluorescent materials have been widely used in the life and material sciences. Fluorescently labelled heterocyclic compounds are useful in bioanalytical applications, including in vivo imaging, high throughput screening, diagnostics, and light-emitting diodes. These compounds have various therapeutic properties, including antifungal, antitumor, antimalarial, anti-inflammatory, and analgesic activities. Different neutral fluorescent markers containing nitrogen heterocycles (quinolones, azafluoranthenes, pyrazoloquinolines, etc.) have several electrochemical, biological, and nonlinear optic applications. Photodynamic therapy (PDT), which destroys tumors and keeps normal tissues safe, works in the presence of molecular oxygen with light and a photosensitizing drugs (dye) to obtain a therapeutic effect. These compounds can potentially be effective templates for producing devices used in biological research. Blending crown compounds with fluorescent residues to create sensors has been frequently investigated. Florescent heterocyclic compounds (crown ether) increase metal solubility in non-aqueous fluids, broadening the application window. Fluorescent supramolecular polymers have widespread use in fluorescent materials, fluorescence probing, data storage, bio-imaging, drug administration, reproduction, biocatalysis, and cancer treatment. The employment of fluorophores, including organic chromophores and crown ethers, which have high selectivity, sensitivity, and stability constants, opens up new avenues for research. Fluorescent organic compounds are gaining importance in the biological world daily because of their diverse functionality with remarkable structural features and positive properties in the fields of medicine, photochemistry, and spectroscopy.
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Affiliation(s)
- Faiz Ullah
- Department of Chemistry, Quaid I Azam University, Islamabad 45320, Pakistan
- Correspondence: (F.U.); (S.S.u.H.); (S.B.)
| | - Sami Ullah
- Department of Zoology, Government College University, Faisalabad 38000, Pakistan
| | - Muhammad Farhan Ali Khan
- Faculty of Pharmacy, Capital University of Science and Technology, Islamabad Expressway, Islamabad 44000, Pakistan
| | - Muhammad Mustaqeem
- Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan
| | - Rizwan Nasir Paracha
- Department of Chemistry, Sub Campus, University of Sargodha, Bhakkar 30000, Pakistan
| | | | - Fariha Kanwal
- School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Hua Shan Road, Shanghai 200030, China
| | - Syed Shams ul Hassan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Natural Product Chemistry, School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
- Correspondence: (F.U.); (S.S.u.H.); (S.B.)
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
- Correspondence: (F.U.); (S.S.u.H.); (S.B.)
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6
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Maļeckis A, Avotiņa L, Ķizāne G, Pučkins A, Osipovs S, Kirilova E. New Fluorescent Heterocyclic Compounds Derived From 3-Cyanobenzanthrone. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.1939068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Armands Maļeckis
- Institute of Life Sciences and Technology, Daugavpils University, Daugavpils University, Daugavpils, Latvia
| | - Līga Avotiņa
- Institute of Chemical Physics, University of Latvia, Riga, Latvia
| | - Gunta Ķizāne
- Institute of Chemical Physics, University of Latvia, Riga, Latvia
| | - Aleksandrs Pučkins
- Institute of Life Sciences and Technology, Daugavpils University, Daugavpils University, Daugavpils, Latvia
| | - Sergejs Osipovs
- Institute of Life Sciences and Technology, Daugavpils University, Daugavpils University, Daugavpils, Latvia
| | - Elena Kirilova
- Institute of Life Sciences and Technology, Daugavpils University, Daugavpils University, Daugavpils, Latvia
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7
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Al-Nami SY, Al-Qahtani SD, Snari RM, Ibarhiam SF, Alfi AA, Aldawsari AM, El-Metwaly NM. Preparation of photoluminescent and anticorrosive epoxy paints immobilized with nanoscale graphene from sugarcane bagasse agricultural waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:60173-60188. [PMID: 35419683 DOI: 10.1007/s11356-022-20111-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/02/2022] [Indexed: 06/14/2023]
Abstract
Sugarcane bagasse agricultural waste has been one of the most common solid pollutants worldwide. Thus, introducing a simple method to convert sugarcane bagasse into value-added materials has been highly significant. Herein, we develop a simple and green strategy to reprocess sugarcane bagasse as a starting material for the preparation of graphene oxide nanosheets toward the preparation of novel photoluminescent, hydrophobic, and anticorrosive epoxy nanocomposite coatings integrated with lanthanide-doped aluminate nanoparticles. Environmentally friendly graphene oxide (GO) nanostructures were provided by a single-step preparation procedure from sugarcane bagasse (SCB) agricultural waste using ferrocene-based oxidation under muffled conditions. The oxidized SCB nanostructures were applied as a drier, anticorrosion, and crosslinking agent for epoxy coatings. Different concentrations of pigment phosphor were applied onto the epoxy coating. The generated epoxy-graphene-aluminate (EGA) paints were then coated onto mild steel. The hydrophobic properties and hardness as well as resistance to scratch of the EGA paints were examined. The transparency and colorimetric screening of the EGA nanocomposite paints were determined by the absorption spectral analysis and CIE Lab parameters. The luminescent translucent paints demonstrated a bright green emission at 520 nm when excited at 372 nm. The anticorrosion properties of the painted steel submerged in NaCl(aq) were inspected by the electrochemical impedance spectral (EIS) method. The EGA paints with phosphor (11% w/w) exhibited the most distinct anti-corrosion properties and long-persistent luminescence. The produced paints displayed high durability and photostability.
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Affiliation(s)
- Samar Y Al-Nami
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Salhah D Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Razan M Snari
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Saham F Ibarhiam
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Afrah M Aldawsari
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, 21955, Saudi Arabia
- King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia
| | - Nashwa M El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, 21955, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura, 35516, Egypt.
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8
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Elsawy H, Sedky A, Abou Taleb MF, El-Newehy MH. Color-switchable and photoluminescent poly (vinyl chloride) for multifunctional smart applications. LUMINESCENCE 2022; 37:1504-1513. [PMID: 35801362 DOI: 10.1002/bio.4324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 11/09/2022]
Abstract
Recycled poly (vinyl chloride) (PVC) waste was used to prepare transparent material with long-lasting phosphorescence, photochromic activity, hydrophobicity, strong optical transmission, ultraviolet (UV) protection, and stiffness. Lanthanide-activated aluminate (LaA) microparticles were prepared via the high temperature solid state procedure, which were subjected to the top-down grinding technology to afford LaA nanoparticles (LaAN). Laminated poly (vinyl chloride) bottles were shredded into a transparent plastic matrix, which was combined with LaAN and drop-casted to produce smart materials for a variety of applications. Smart window and photochromic film for smart packaging can be made from recycled poly (vinyl chloride) waste by immobilizing it with various ratios of LaAN. Long-lasting phosphorescent translucent poly (vinyl chloride) smart window and films need LaAN to be evenly dispersed in PVC without clumping. Different analytical methods were employed to assess the materials' morphological structure and chemical composition. Photoluminescence and decay spectra were all employed to investigate the luminescence characteristics. In addition, the mechanical performance was studied. According to CIE Lab (Commission Internationale de L'éclairage) color measurements, this transparent PVC smart material becomes a bright green under UV rays and turns a greenish-yellow in the dark. The PVC luminescence was observed to exhibit an apparent emission bands at 429 and 513 nm when excited at 367 nm. Improvements have been monitored in the UV shielding and hydrophobicity with increasing the phosphor concentration. LaAN-immobilized PVC exhibited reversible photochromism. The present approach can be applied for a variety of applications, such as anticounterfeiting films for smart packaging, smart window, and warning lightening marks.
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Affiliation(s)
- Hany Elsawy
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia.,Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Azza Sedky
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia.,Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Manal F Abou Taleb
- Department of Chemistry, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, Al-kharj, Saudi Arabia.,Department of Polymer Chemistry, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Nasr City, Cairo, Egypt
| | - Mohamed H El-Newehy
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt.,Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
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9
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Al-Qahtani S, Alkhamis K, Alfi AA, Alhasani M, El-Morsy MHE, Sedayo AA, El-Metwaly NM. Simple Preparation of Multifunctional Luminescent Textile for Smart Packaging. ACS OMEGA 2022; 7:19454-19464. [PMID: 35721986 PMCID: PMC9202256 DOI: 10.1021/acsomega.2c01161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 05/20/2022] [Indexed: 05/25/2023]
Abstract
Linen has been a significant material for textile packaging. Thus, the application of the simple spray-coating method to coat linen fibers with a flame-retardant, antimicrobial, hydrophobic, and anticounterfeiting luminescent nanocomposite is an innovative technique. In this new approach, the ecologically benign room-temperature vulcanizing (RTV) silicone rubber was employed to immobilize the environmentally friendly Exolit AP 422 (Ex) and lanthanide-doped strontium aluminum oxide (RESAO) nanoscale particles onto the linen fibrous surface. Both morphological properties and elemental compositions of RESAO and treated fabrics were examined by transmission electron microscopy (TEM), scanning electron microscopy (SEM), wavelength-dispersive X-ray fluorescence (WD-XRF), Fourier transform infrared (FTIR) spectroscopy, and energy-dispersive X-ray spectroscopy (EDX). In the fire resistance test, the treated linen fabrics produced a char layer, giving them the property of self-extinguishing. Furthermore, the coated linen samples' fire-retardant efficacy remained intact after 35 washing cycles. As the concentration of RESAO increased, so did the treated linen superhydrophobicity. Upon excitation at 366 nm, an emission band of 519 nm was generated from a colorless luminescent film deposited onto the linen surface. The coated linen displayed a luminescent activity by changing color from off-white beneath daylight to green beneath UV source, which was proved by CIE Lab parameters and photoluminescence spectral analysis. The photoluminescence effect was identified in the treated linen as reported by emission, excitation, and decay time spectral analysis. The comfort properties of coated linen fabrics were measured to assess their mechanical and comfort features. The treated linen exhibited excellent UV shielding and improved antimicrobial performance. The current simple strategy could be useful for large-scale production of multifunctional smart textiles such as packaging textiles.
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Affiliation(s)
- Salhah
D. Al-Qahtani
- Department
of Chemistry, College of Science, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Kholood Alkhamis
- Department
of Chemistry, College of Science, University
of Tabuk, Tabuk 71474, Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 24230, Saudi Arabia
| | - Mona Alhasani
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 24230, Saudi Arabia
| | - Mohamed H. E. El-Morsy
- Deanship
of Scientific Research, Umm Al-Qura University, Makkah 24382, Saudi Arabia
- Plant
Ecology and Range Management Department, Desert Research, Center, Cairo 11753, Egypt
| | - Anas Abdulhamid Sedayo
- Department
of Medical Physics, Maternity and Children Hospital Makkah, Ministry of Health, Riyadh 12613, Saudi Arabia
| | - Nashwa M. El-Metwaly
- Department
of Chemistry, Faculty of Applied Science, Umm Al Qura University, Makkah 24230, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Mansoura
University, El-Gomhoria
Street, Dakahlia Governorate 35516, Egypt
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10
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Long Persistent Luminescent HDPE Composites with Strontium Aluminate and Their Phosphorescence, Thermal, Mechanical, and Rheological Characteristics. MATERIALS 2022; 15:ma15031142. [PMID: 35161084 PMCID: PMC8838302 DOI: 10.3390/ma15031142] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 02/04/2023]
Abstract
In this work, HDPE/strontium aluminate-based auto glowing composites (SrAl2O4: Eu, Dy (AG1) and Sr4Al14O25: Eu, Dy (AG2)) were prepared, and their phosphorescence studies were conducted. In HDPE/AG1 composites, the green emission was observed at ~500 nm after the UV excitation at 320 nm. The HDPE/AG2 has a blue emission at ~490 nm and, in both cases, the intensity of emission is proportional to the AG1 and AG2 content. The DSC data show that the total crystallinity of both the composites was decreased but with a more decreasing effect with the bulky AG2 filler. The melting and crystallization temperatures were intact, which shows the absence of any chemical modification during high shear and temperature processing. This observation is further supported by the ATR-FTIR studies where no new peaks appeared or disappeared from the HDPE peaks. The tensile strength and modulus of HDPE, HDPE/AG1, and HDPE/AG2 composites were improved with the AG1 and AG2 fillers. The rheological studies show the improvement in the complex viscosity and accordingly the storage modulus of the studied phosphorescent HDPE composites. The SEM images indicate better filler dispersion and filler–matrix adhesion, which improves the mechanical characteristics of the studied HDPE composites. The ageing studies in the glowing composites show that there is a decrease in the intensity of phosphorescence emission on exposure to drastic atmospheric conditions for a longer period and the composites become more brittle.
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Abou-Melha K. Preparation of photoluminescent nanocomposite ink toward dual-mode secure anti-counterfeiting stamps. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103604] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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12
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Alhasani M, Al‐Qahtani SD, Hameed A, Snari RM, Shah R, Alfi AA, El‐Metwaly NM. Preparation of transparent photoluminescence smart window by integration of rare‐earth aluminate nanoparticles into recycled polyethylene waste. LUMINESCENCE 2022; 37:622-632. [DOI: 10.1002/bio.4202] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/22/2022] [Accepted: 01/25/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Mona Alhasani
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Salhah D. Al‐Qahtani
- Department of Chemistry College of Science, Princess Nourah bint Abdulrahman University Riyadh Saudi Arabia
| | - Ahmed Hameed
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Razan M. Snari
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Reem Shah
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry, Faculty of Science Mansoura University El‐Gomhoria Street Egypt
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13
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Al-Qahtani SD, Snari RM, Alkhamis K, Alatawi NM, Alhasani M, Al-Nami SY, El-Metwaly NM. Development of silica-coated rare-earth doped strontium aluminate toward superhydrophobic, anti-corrosive and long-persistent photoluminescent epoxy coating. LUMINESCENCE 2022; 37:479-489. [PMID: 35043557 DOI: 10.1002/bio.4198] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 11/05/2022]
Abstract
Long-persistent phosphorescent smart paints have the ability to continue glowing in the dark for a prolonged time period to function as energy-saving products. Herein, new epoxy/silica nanocomposite paints were prepared with different concentrations of lanthanide-doped aluminate nanoparticles (LAN; SrAl2 O4 : Eu2+ , Dy3+ ). The LAN pigment was firstly coated with SiO2 utilizing the heterogeneous precipitation technique to provide LAN-encapsulated between SiO2 nanoparticles (LAN@SiO2 ). The epoxy/silica/lanthanide-doped aluminate nanoparticles (ESLAN) nanocomposite paints were coated on steel. The prepared ESLAN paints were studied by transmission electron microscope (TEM), infrared spectra (FTIR), scanning electron microscope (SEM), X-ray fluorescence analysis (XRF), and energy-dispersive X-ray spectra (EDS). The transparency and coloration properties of the nanocomposite coated films were explored by CIE Lab parameters and photoluminescence spectra. The ultraviolet-induced luminescence properties of the transparent coated films demonstrated greenish phosphorescence at 518 nm upon excitation at 368 nm. Both hardness and hydrophobic activities were investigated. The anticorrosion activity of the nanocomposite films coated onto mild steel substrates immersed in NaCl(aq) (3.5%) was studied by the electrochemical impedance spectral (EIS) analysis. The silica-containing coatings were monitored to exhibit anticorrosion properties. Additionally, the nanocomposite films with LAN@SiO2 (25%) exhibited the optimized long-lasting luminescence properties in the dark for 90 minutes. The nanocomposite films showed highly reversible and durable long-lived phosphorescence.
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Affiliation(s)
- Salhah D Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Razan M Snari
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Kholood Alkhamis
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Nada M Alatawi
- Department of Chemistry, College of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Mona Alhasani
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Samar Y Al-Nami
- Department of Chemistry, Faculty of Science, King Khalid University, Saudi Arabia, Abha
| | - Nashwa M El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia.,Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Egypt
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14
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Maddalena F, Witkowski ME, Makowski M, Bachiri A, Mahler B, Wong YC, Chua CYE, Lee JX, Drozdowski W, Springham SV, Dujardin C, Birowosuto MD, Dang C. Stable and Bright Commercial CsPbBr 3 Quantum Dot-Resin Layers for Apparent X-ray Imaging Screen. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59450-59459. [PMID: 34855346 DOI: 10.1021/acsami.1c16171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
CsPbBr3 quantum dots (QDs) have recently gained much interest due to their excellent optical and scintillation properties and their potential for X-ray imaging applications. In this study, we blended CsPbBr3 QDs with resin at different QD concentrations to achieve thick films and to protect the CsPbBr3 QDs from environmental moisture. Then, their scintillation properties are investigated and compared to the traditional commercial scintillators, CsI:Tl microcolumns, and Gadox layers. The CsPbBr3 QD-resin sheets show a high light yield of up to 21 500 photons/MeV at room temperature and a relatively small variation in light yield across a wide temperature range. In addition, the CsPbBr3 QD-resin sheets feature a small scintillation afterglow. The CsPbBr3 QD-resin sheets show a negligible trap density for the concentration below 50% weight, indicating that traps might arise from the aggregation of the QDs. The CsPbBr3 QD-resin sheets are also very stable at low irradiation intensities and relatively stable at higher intensities, with higher CsPbBr3 QD concentrations being more stable. Gamma-ray-excited-time-resolved emission measurements at 662 keV showed that the CsPbBr3 QD-resin sheets have an average scintillation decay time between 108 and 176 ns, which are still 10 000 and 6000 times faster than CsI:Tl and Gadox, respectively. Imaging tests show that the CsPbBr3 QD-resin sheets have a mean transfer function of 50% at 2 lp/mm and 20% at 4 lp/mm, comparable to that of commercial Gadox layers. This feature makes CsPbBr3 QD-resin sheets a good candidate for the low-cost, flexible X-ray imaging screens and γ-ray applications.
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Affiliation(s)
- Francesco Maddalena
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
- CINTRA UMI CNRS/NTU/THALES 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, 637553 Singapore
| | - Marcin E Witkowski
- Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University in Torun, ul. Grudziadzka 5, 87-100 Torun, Poland
| | - Michal Makowski
- Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University in Torun, ul. Grudziadzka 5, 87-100 Torun, Poland
| | - Abdellah Bachiri
- Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University in Torun, ul. Grudziadzka 5, 87-100 Torun, Poland
| | - Benoit Mahler
- Universitéé de Lyon, Université Claude Bernard, Lyon 1, CNRS, Institut Lumière Matière UMR5306, Villeurbanne F-69622, France
| | - Ying-Chieh Wong
- Nanolumi, 22 Boon Lay Way #01-61, Tradehub 21, 609968 Singapore
| | | | - Jia Xing Lee
- Nanolumi, 22 Boon Lay Way #01-61, Tradehub 21, 609968 Singapore
| | - Winicjusz Drozdowski
- Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University in Torun, ul. Grudziadzka 5, 87-100 Torun, Poland
| | - Stuart Victor Springham
- Natural Sciences and Science Education, National Institute of Education, 1 Nanyang Walk, 637616 Singapore
| | - Christophe Dujardin
- Universitéé de Lyon, Université Claude Bernard, Lyon 1, CNRS, Institut Lumière Matière UMR5306, Villeurbanne F-69622, France
| | - Muhammad Danang Birowosuto
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
- CINTRA UMI CNRS/NTU/THALES 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, 637553 Singapore
| | - Cuong Dang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
- CINTRA UMI CNRS/NTU/THALES 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, Level 6, 637553 Singapore
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15
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El-Naggar ME, Aldalbahi A, Khattab TA, Hossain M. Facile production of smart superhydrophobic nanocomposite for wood coating towards long-lasting glow-in-the-dark photoluminescence. LUMINESCENCE 2021; 36:2004-2013. [PMID: 34453772 DOI: 10.1002/bio.4137] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/22/2021] [Accepted: 08/24/2021] [Indexed: 01/23/2023]
Abstract
A smart photoluminescent nanocomposite surface coating was prepared for simple industrial production of long-persisting phosphorescence and superhydrophobic wood. The photoluminescent nanocomposite coatings were capable of continuing to emit light in the dark for prolonged time periods that could reach 1.5 h. Lanthanide-doped aluminium strontium oxide (LASO) nanoparticles at different ratios were immobilized in polystyrene (PS) and developed as a nanocomposite coating for wood substrates. To produce transparency in the prepared nanocomposite coating, LASO was efficiently dispersed in the form of nanoscaled particles to ensure homogeneous dispersion without agglomeration in the PS matrix. The coated wood showed an absorption band at 374 nm and two emission bands at 434 nm and 518 nm. The luminescence spectra showed both long-persisting phosphorescence as well as photochromic fluorescence relying on the LASO ratio. The improved superhydrophobicity and resistance to scratching of the coated wood could be attributed to the LASO NPs incorporated in the polystyrene matrix. Compared with the uncoated wood substrate, the coated LASO-PS nanocomposite film also displayed photostability and high durability. The current study demonstrated the potential high-scale manufacturing of smart wood for some applications such as safety directional signs in buildings, household products, and smart windows.
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Affiliation(s)
- Mehrez E El-Naggar
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Ali Aldalbahi
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Tawfik A Khattab
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Mokarram Hossain
- Zienkiewicz Centre for Computational Engineering, College of Engineering, Swansea University, UK
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16
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Aldalbahi A, El-Naggar ME, Khattab TA, Hossain M. Preparation of flame-retardant, hydrophobic, ultraviolet protective, and luminescent transparent wood. LUMINESCENCE 2021; 36:1922-1932. [PMID: 34323352 DOI: 10.1002/bio.4126] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/15/2021] [Accepted: 07/23/2021] [Indexed: 01/08/2023]
Abstract
Transparent wood with multifunctional properties has recently attracted more attention as an efficient building product. Here, we describe the development of transparent wood with long-persistent phosphorescence, tough surface, high durability, photostability, and reversibility without fatigue, and with ultraviolet shielding, superhydrophobicity, and flame-retardant activity. This long-persistent phosphorescent, or glow-in-the-dark, smart wood exhibited an ability to continue emitting light for prolonged periods of time. The photoluminescent translucent wooden substrate was prepared by immobilizing lignin-modulated wooden bulk with an admixture of methylmethacrylate (MMA), ammonium polyphosphate (APP), and lanthanide-doped strontium aluminate (LSA; SrAl2 O4 :Eu2+ ,Dy3+ ) phosphor nanoparticles. The photoluminescent transparent wood displayed a colour switch from colourless to bright white beneath ultraviolet (UV) light and greenish-yellow in the dark as reported by Commission Internationale de l'Éclairage laboratory colorimetric space coordinates. The generated phosphorescent wooden substrates demonstrated an absorbance band at 365 nm and an emission band at 516 nm. The phosphorescent transparent wood was improved flame-retardant properties, ultraviolet shielding, and superhydrophobic properties, as well as a reversible long-persistent phosphorescent responsiveness to UV light without fatigue. The current approach demonstrated a potential large-scale production strategy for multifunctional transparent wooden substrates for a range of applications such as smart windows, gentle indoor and outdoor lighting, and safety directional signs in buildings.
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Affiliation(s)
- Ali Aldalbahi
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mehrez E El-Naggar
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Tawfik A Khattab
- Textile Research Division, National Research Center (Affiliation ID: 60014618), Dokki, Cairo, Egypt
| | - Mokarram Hossain
- Zienkiewicz Centre for Computational Engineering, College of Engineering, Swansea University, UK
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17
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Mokhtar OM, Attia YA, Wassel AR, Khattab TA. Production of photochromic nanocomposite film via spray-coating of rare-earth strontium aluminate for anti-counterfeit applications. LUMINESCENCE 2021; 36:1933-1944. [PMID: 34323370 DOI: 10.1002/bio.4127] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/16/2021] [Accepted: 07/23/2021] [Indexed: 12/25/2022]
Abstract
New photochromic film was developed toward the preparation of anti-counterfeiting documents utilizing inorganic/organic nanocomposite enclosing a photoluminescent inorganic pigment and a polyacrylic binder polymer. To generate a translucent film from pigment/polyacrylic nanocomposite, the phosphorescent strontium aluminum oxide pigment should be well-dispersed in the solution of the polyacrylic-based binder without agglomeration. The photochromic nanocomposite was applied efficiently onto commercial cellulose paper documents utilizing the effective and economical spray-coating technology followed with thermofixation. A homogeneous photochromic film was immobilized onto cellulose paper surface to introduce a transparent film changing to greenish-yellow upon exposure to ultraviolet light as depicted by CIE coloration measurements. The photochromic effect was monitored at lowest pigment concentration (0.25 wt%). The spray-coated paper documents exhibit two absorbance bands at 256 and 358 nm, and two fluorescence peaks at 433 and 511 nm. The morphologies of the spray-coated documents were explored. The spray-coated paper sheets showed a reversible photochromic effect without fatigue under ultraviolet irradiation. The rheology of the produced photochromic composites as well as the mechanical properties and photostability of the spray-coated documents were studied.
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Affiliation(s)
- Omnia M Mokhtar
- Department of Laser in Meteorology, Photochemistry and Agriculture, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt
| | - Yasser A Attia
- Department of Laser in Meteorology, Photochemistry and Agriculture, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt
| | - Ahmed R Wassel
- Electron Microscope and Thin Film Department, Physics Research Division National Research Centre, Giza, Egypt
| | - Tawfik A Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo, Egypt
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18
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Hameed A, Aljuhani E, Bawazeer TM, Almehmadi SJ, Alfi AA, Abumelha HM, Mersal GAM, El-Metwaly N. Preparation of multifunctional long-persistent photoluminescence cellulose fibres. LUMINESCENCE 2021; 36:1781-1792. [PMID: 34309162 DOI: 10.1002/bio.4123] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/14/2021] [Accepted: 07/20/2021] [Indexed: 12/23/2022]
Abstract
Simple preparation of flame-retardant, photoluminescent, and superhydrophobic smart nanocomposite coating was developed and applied onto cotton fibres using the simple pad-dry-cure technique. This novel strategy involved the immobilization of rare-earth-doped aluminium strontium oxide (ASO; SrAl2 O4 :Eu+2 ,Dy+3 ) nanoparticles, environmentally friendly room temperature vulcanizing silicone rubber (RTV) and environmentally friendly Exolet AP422 (Ex). The fabrics were also able to produce a char film in the fire-resistant assessment, providing fibres with a self-extinguishing characteristic. Furthermore, the fire-retardant performance of the coated cotton samples remained resistant to washing over 35 laundry cycles. The superhydrophobicity of the treated fabrics was monitored to improve by increasing the photoluminescent phosphor nanoparticles. The produced transparent photoluminescent film displayed an absorption at 360 nm and an emission at 526 nm. The photoluminescent fabrics were observed to generate different colorimetric shades, including white, green-yellow and bright white as monitored by Commission Internationale de l'Éclairage laboratory colorimetric coordinates. Slow emissions were detected for the treated cotton fabrics as monitored by emission, ultraviolet-visible light absorption, lifetime, and decay time spectral profiles to indicate glow in the dark phosphorescence effect. Both comfort and mechanical properties of the coated fibres were evaluated by measuring their bending length and air permeability.
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Affiliation(s)
- Ahmed Hameed
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Enas Aljuhani
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Tahani M Bawazeer
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Samar J Almehmadi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Alia Abdulaziz Alfi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia
| | - Hana M Abumelha
- Department of Chemistry, Faculty of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Gaber A M Mersal
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, Saudi Arabia
| | - Nashwa El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah, Saudi Arabia.,Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Egypt
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19
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Khattab TA, Tolba E, Gaffer H, Kamel S. Development of Electrospun Nanofibrous-Walled Tubes for Potential Production of Photoluminescent Endoscopes. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01519] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tawfik A. Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt
| | - Emad Tolba
- Polymers and Pigments Department, National Research Centre, Cairo 12622, Egypt
| | - Hatem Gaffer
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt
| | - Samir Kamel
- Cellulose and Papers Department, National Research Centre, Cairo 12622, Egypt
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20
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Radwan AS, Makhlouf MM. Synthesis, characterization, and self-assembly of fluorescent fluorine-containing liquid crystals. LUMINESCENCE 2021; 36:1751-1760. [PMID: 34235848 DOI: 10.1002/bio.4117] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/27/2021] [Accepted: 07/04/2021] [Indexed: 01/04/2023]
Abstract
SN Ar has been used to synthesize various functionalized derivatives of pentafluorobenzenes which are highly specific at the para position; and consequently are ideal for building calamitic (rod-like) liquid crystalline molecular systems. Here, we display the effectiveness of SN Ar chemistry as a convenient method toward the synthesis of fluorescent liquid crystalline perfluorinated comprising ethers and thioethers in excellent yields and high purity. In the current work, we describe the synthesis, self-assembly, and mesogenic properties of new perfluorinated para-terphenyls bearing various para-substituted alkoxy and thioalkoxy chains. The terphenyl core was prepared using Cu(I) (or Cu(I)/phenanthroline)-catalyzed decarboxylative carbon-carbon (or carbon-oxygen [sulfur]) cross-coupling from the analogous aromatic iodide and fluorobenzoate potassium salt. The molecular structures of the prepared perfluorinated terphenyls were demonstrated with 1 H, 13 C, and 19 F NMR, as well as FT-IR and X-ray crystallography. The liquid crystalline properties and mesogenic phases were characterized with differential scanning calorimetry and high-resolution polarized optical microscope. Both UV-visible absorbance and emission spectra demonstrated solvatochromism. Supramolecular self-assembly of the generated perfluorinated para-terphenyls was monitored by van der Waals and π-π stacking interaction forces. The creation of nanofibrous architectures was monitored by scanning electron microscopy.
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Affiliation(s)
- Ahmed S Radwan
- Department of Sciences and Technology, Ranyah University Collage, Taif University, P.O. Box 11099, Taif, Saudi Arabia
| | - Mohamed M Makhlouf
- Department of Sciences and Technology, Ranyah University Collage, Taif University, P.O. Box 11099, Taif, Saudi Arabia
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21
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Feng Y, Su Y, Liu R, Lv Y. Engineering activatable nanoprobes based on time-resolved luminescence for chemo/biosensing. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116283] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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22
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Al-Qahtani S, Aljuhani E, Felaly R, Alkhamis K, Alkabli J, Munshi A, El-Metwaly N. Development of Photoluminescent Translucent Wood toward Photochromic Smart Window Applications. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01603] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Salhah Al-Qahtani
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11564, Saudi Arabia
| | - Enas Aljuhani
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
| | - Rasha Felaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
| | - Kholood Alkhamis
- Department of Chemistry, College of Science, University of Tabuk, Tabuk 47711, Saudi Arabia
| | - Jafar Alkabli
- Department of Chemistry, College of Science and Arts-Alkamil, University of Jeddah, Jeddah 23218, Saudi Arabia
| | - Alaa Munshi
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
| | - Nashwa El-Metwaly
- Department of Chemistry, Faculty of Applied Science, Umm-Al-Qura University, Makkah 24230, Saudi Arabia
- Department of Chemistry, Faculty of Science, Mansoura University, El-Gomhoria Street, Mansoura 35516, Egypt
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23
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Altoom NG. Synthesis and characterization of novel fluoroterphenyls: self-assembly of low-molecular-weight fluorescent organogel. LUMINESCENCE 2021; 36:1285-1299. [PMID: 33855788 DOI: 10.1002/bio.4055] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/10/2021] [Accepted: 04/11/2021] [Indexed: 12/11/2022]
Abstract
Nucleophilic aromatic substitution has been highly para selective on a range of functionalized pentafluorobenzenes. Here, we demonstrate the utility of nucleophilic aromatic substitution chemistry for the preparation of fluorinated fluorescent low-molecular-weight organogels. The molecular design, synthesis and photophysical performance of a new class of thermoreversible and fluorescent low-molecular-weight organogels from para-alkoxy-functionalized fluorinated terphenyls are described. Both CuI-catalyzed decarboxylative cross-coupling and nucleophilic aromatic substitution chemistry were used for the preparation of those highly fluorinated gelators in high yields and excellent purity via simple filtration, from the corresponding potassium fluorobenzoate salts and aryl iodides. Various fluorinated symmetrical and asymmetrical para terphenyls were prepared with various para terminal alkoxy tails. Those fluorinated terphenyls were characterized using X-ray crystallography, differential scanning calorimetry, Fourier-transform infrared spectroscopy, as well as 1 H, 13 C, and 19 F nuclear magnetic resonance. UV-visible light absorbance and emission spectra of those new materials displayed a solvatochromic and solvatofluorochromic behaviour, respectively. Self-assembly of the produced fluorinated terphenyls occurred via cooperative π-π stacking and van der Waals interactions, which resulted in gelating various organic solvents. Scanning electron microscopy displayed the formation of fibre-like nanostructures. The cytotoxicity of some selected fluorinated symmetrical and asymmetrical para terphenyls was explored.
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Affiliation(s)
- Naif Ghazi Altoom
- Department of Biology, King Khalid Military Academy, P.O. Box 22140, Riyadh, Saudi Arabia
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24
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Jaiswal VV, Haranath D. Fabrication and luminescent studies of near-spherical phosphor embedded epoxy-resin nanocomposite beads. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01851-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Abumelha HM. Simple production of photoluminescent polyester coating using lanthanide‐doped pigment. LUMINESCENCE 2021; 36:1024-1031. [DOI: 10.1002/bio.4030] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/02/2021] [Accepted: 02/08/2021] [Indexed: 02/06/2023]
Affiliation(s)
- Hanna M. Abumelha
- Chemistry Department, Faculty of Science Princess Nourah Bint Abdulrahman University Riyadh Saudi Arabia
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26
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Alzahrani HK, Munshi AM, Aldawsari AM, Keshk AA, Asghar BH, Osman HE, Khalifa ME, El‐Metwaly NM. Development of photoluminescent, superhydrophobic, and electrically conductive cotton fibres. LUMINESCENCE 2021; 36:964-976. [DOI: 10.1002/bio.4024] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 01/12/2023]
Affiliation(s)
- Hanan K. Alzahrani
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Alaa M. Munshi
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Afrah M. Aldawsari
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
- Petrochemical Research Institute King Abdulaziz City for Science and Technology P. O. Box 6086 Riyadh Saudi Arabia
| | - Ali A. Keshk
- Department of Chemistry, College of Science University of Tabuk Saudi Arabia
| | - Basim H. Asghar
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Hanan E. Osman
- Department of Biology, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Mohamed E. Khalifa
- Department of Chemistry, College of Science Taif University P.O. Box 11099 Taif Saudi Arabia
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry, Faculty of Science Mansoura University El‐Gomhoria Street Egypt
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27
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Abdelhameed MM, Attia YA, Abdelrahman MS, Khattab TA. Photochromic and fluorescent ink using photoluminescent strontium aluminate pigment and screen printing towards anticounterfeiting documents. LUMINESCENCE 2020; 36:865-874. [DOI: 10.1002/bio.3987] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Marwa M. Abdelhameed
- Department of Laser in Meteorology, Photochemistry & Agriculture, National Institute of Laser Enhanced Sciences Cairo University Giza Egypt
| | - Yasser A. Attia
- Department of Laser in Meteorology, Photochemistry & Agriculture, National Institute of Laser Enhanced Sciences Cairo University Giza Egypt
| | - Meram S. Abdelrahman
- Dyeing, Printing and Auxiliaries Department, National Research Centre Cairo Egypt
| | - Tawfik A. Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre Cairo Egypt
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28
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Khattab TA, El‐Naggar ME, Abdelrahman MS, Aldalbahi A, Hatshan MR. Facile development of photochromic cellulose acetate transparent nanocomposite film immobilized with lanthanide‐doped pigment: ultraviolet blocking, superhydrophobic, and antimicrobial activity. LUMINESCENCE 2020; 36:543-555. [DOI: 10.1002/bio.3974] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 12/11/2022]
Affiliation(s)
| | | | | | - Ali Aldalbahi
- Department of Chemistry, College of Science King Saud University Riyadh Saudi Arabia
| | - Mohammad Rafe Hatshan
- Department of Chemistry, College of Science King Saud University Riyadh Saudi Arabia
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29
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Li J, Lu YM, Yang QH, Yang CF, Chen CC, Houng MP. Effect of different temperatures to remove reduction gas on the photoluminescence properties of Eu-doped Li 2 (Ba 1-x Sr x )SiO 4 phosphors. LUMINESCENCE 2020; 36:20-27. [PMID: 32602601 DOI: 10.1002/bio.3910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/14/2020] [Accepted: 06/26/2020] [Indexed: 01/09/2023]
Abstract
In this study, Eu-doped Li2 (Ba1-x Srx )SiO4 powders (x = 0, 0.2, 0.4, and 0.6) were synthesized at 850°C in a reduction atmosphere (5% H2 + 95% N2 ) for a duration of 1 h using a solid-state reaction method. The reduction atmosphere was infused as the synthesis temperature reached 850°C, and was removed as the temperature dropped to 800-500°C. Li2 (Ba1-x Srx )SiO4 (or Li2 BaSiO4 ), (Ba,Sr)2 SiO4 (or BaSiO4 ), and Li4 SiO4 phases co-existed in the synthesized Eu-doped Li2 (Ba1-x Srx )SiO4 powders. A new finding was that the reduction atmosphere removing (RAR) temperature of the Li2 (Ba1-x Srx )SiO4 phosphors had a large effect on their photoluminescence excitation (PLE) and PL properties. Except for the 800°C-RAR-treated Li2 BaSiO4 phosphor, PLE spectra of all other Li2 (Ba1-x Srx )SiO4 phosphors had one broad emission band with two emission peaks centred at ~242 and ~283 nm; these PL spectra had one broad emission band with one emission peak centred at 502-514 nm. We showed that the 800°C-RAR-treated Li2 BaSiO4 phosphor emitted a red light and all other Li2 (Ba1-x Srx )SiO4 phosphors emitted a green light. Reasons for these results are discussed thoroughly.
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Affiliation(s)
- Jie Li
- Department of Electrical Engineering, National University of Tainan, Tainan City, Taiwan
| | - Yang-Ming Lu
- Department of Electrical Engineering, National University of Tainan, Tainan City, Taiwan
| | - Qing-Hao Yang
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, Taiwan
| | - Cheng-Fu Yang
- Department of Chemical and Materials Engineering, National University of Kaohsiung, Kaohsiung, Taiwan.,Department of Aeronautical Engineering, Chaoyang University of Technology, Taichung, Taiwan
| | - Chih-Cheng Chen
- Department of Aeronautical Engineering, Chaoyang University of Technology, Taichung, Taiwan
| | - Mau-Phon Houng
- Institute of Microelectronics, Department of Electrical Engineering, National Cheng Kung University, Tainan City, Taiwan
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