State-of-the-art luminescent materials based on wood veneer with superior strength, transparency, and water resistance

Wang, Ming; Liu, Hongchen; Feng, Xiao; Wang, Xijun; Shen, Kaiyuan; Hu, Qi; Rojas, Orlando J.

doi:10.1016/j.cej.2022.140225

Cited by 12 publications

(3 citation statements)

References 45 publications

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“…As shown in Figure S3a, Supporting Information, the carbon signals in the solid-state 13 C-NMR spectroscopy of the films at ≈204 ppm, ≈168 ppm, 55-110 ppm, ≈48 ppm, and ≈30 ppm corresponded to keto carbonyl, acetoacetate ester, cellulose backbone, methylene and methyl of acetoacetyl moieties, respectively. [23] Meanwhile, the DHPs ring structure was confirmed by the signals of olefin car-bon (≈109 ppm, ≈148 ppm), tertiary carbon (≈40 ppm), and aromatic ring carbon (120-140 ppm) (Figure S3b, Supporting Information). Compared with the XPS spectra of the cellulose and CAA, all CAA-DHPs derivative films appeared with new N1s peaks (Figure S4, Supporting Information).…”

Section: Synthesis and Excitation-dependent Rtp Propertiesmentioning

confidence: 93%

Color‐Tunable, Excitation‐Dependent, and Water Stimulus‐Responsive Room‐Temperature Phosphorescence Cellulose for Versatile Applications

et al. 2023

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Smart‐response materials with ultralong room temperature phosphorescence (RTP) are highly desirable, but they have rarely been described, especially those originating from sustainable polymers. Herein, a variety of cellulose derivatives with 1,4 dihydropyridines (DHPs) rings were synthesized through the Hantzsch reaction, giving impressive RTP with a long lifetime of up to 1251 ms. Specifically, the introduction of acetoacetyl groups and DHPs rings promotes the spin‐orbit coupling (SOC) and intersystem crossing (ISC) process, and multiple interactions between cellulose induce clustering and inhibit the nonradiative transitions, boosting long‐live RTP. Furthermore, the resulting transparent and flexible cellulose films also exhibit excitation‐dependent and color‐tunable afterglows by introducing different extended aromatic groups. More interestingly, the RTP performance of these films is sensitive to water and can be repeated in response to wet/dry stimuli. Inspired by these advantages, the RTP cellulose demonstrates advanced applications in information encryption and anti‐counterfeiting. This work not only enriches the photophysical properties of cellulose but also provides a versatile platform for the development of sustainable afterglows.This article is protected by copyright. All rights reserved

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Section: Synthesis and Excitation-dependent Rtp Propertiesmentioning

confidence: 93%

Color‐Tunable, Excitation‐Dependent, and Water Stimulus‐Responsive Room‐Temperature Phosphorescence Cellulose for Versatile Applications

et al. 2023

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“…Luminescent TW has been prepared by dispersing luminescent nanoparticles, quantum dots, or carbon dots into the infiltrating polymer. [34][35][36] The functionalization of TW to produce luminescent transparent building materials for potential applications in gas detection, furniture for general lighting, LED lighting equipment, magnetic switches, and so forth has been widely illustrated. 37 In this context, the objective of the present work is to develop a simple method of preparation of luminescent TW using a treating lignin modified woody cellulose framework with an OB-a commercially available lowcost fabric brightener known as Ranipal ® .…”

Section: Introductionmentioning

confidence: 99%

Luminescent transparent wood from a woody cellulosic template treated with an optical brightener

Chathoth

Rao

Nair

et al. 2023

J of Applied Polymer Sci

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Transparent wood (TW) has attracted tremendous research interest due to its numerous adaptive features and applications as a sustainable material. The present study unveils a novel and simple method of preparing luminescent transparent wood (LTW) with good optical properties and UV-blocking nature. LTW was prepared by pre-treatment of lignin-modified wood (LMW) with a commercial fabric brightener/optical brightener (Ranipal ® ) prior to polymer infiltration. The resultant LTW showed unique bluish photoluminescence upon UV light irradiation. Under normal light illumination, the LTW exhibited a brilliant bright/white appearance compared to untreated TW samples. LTW fabricated using 1 mm thick silver oak wood veneer exhibited high transparency (82%) and high haze (90%) with enhanced UV blocking property. The novel LTW fabrication method using a readily available and low-cost fabric brightener has significantly reduced the overall process complexity of LTW preparation. The treatment with optical brightener had no adverse effect on the material quality. The fabricated LTW with good optical features can be an excellent bio-based input material to the multifunctional smart material category.

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“…[56][57][58][59][60][61][62][63][64][65][66][67][68][69][70][71][72] fluorescent particles (CFP, Figure S1, Supporting Information) has a remarkable shielding effect on UV light, but it has large particle size and insolubility in various polar solvents, such as acetone, chloroform, and tetrahydrofuran, which greatly limits its practical application. [16,18,19] Therefore, we proposed and designed by incorporating some inorganic nanoparticles (e.g., ZnO, Bi 2 O 3 ) to plug the protection gap caused by the CFP to build a protective composite with a dense and porous structure.…”

Section: Introductionmentioning

confidence: 99%

Electrospun Multifunctional Radiation Shielding Nanofibrous Membrane for Daily Human Protection

Chen

Wang

Liao

et al. 2023

Adv Materials Technologies

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With the widespread utilization of many radiation instruments, people are inadvertently suffering from radiation damage. But nowadays, there is still a lack of a lightweight, comfortable, and efficient wearable radiation‐proof multifunctional composite fibrous membranes in people's lives. To solve this problem, a green and efficient radiation‐resistant nanofibrous membrane consisting of cellulose fluorescent particles (CFP), ZnO‐Bi2O3 nanoparticles, and polyacrylonitrile (PAN) solution is prepared by an electrospinning technology. The microscopic characterization shows that the nanoparticles are uniformly dispersed on the surface of the nanofibrous membrane, forming a dense fibrous structure. The PAN/CFP/ZnO‐Bi2O3 nanofibrous membrane exhibits not only an excellent ultraviolet(UV) interception with an ultraviolet protection factor value of 337.99 ± 83.67, but also a strong shielding effect on low‐energy X‐rays. Simultaneously, it can not only photocatalytically degrade 88.17% of methylene blue solution within 150 min, but also remove 94.16 ± 0.96% of Escherichia coli and 99.07 ± 0.59% of Staphylococcus aureus within 3 h under dark incubation and kill all bacteria within 3 h under light. The adhesion, growth, and proliferation of bone marrow mesenchymal stem cells on the PAN/CFP/ZnO‐Bi2O3 nanofibrous membranes confirm its low cytotoxicity and good biosafety. Thus, it could be expected to be used in daily life products such as UV and X‐rays radiation protective clothing.

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State-of-the-art luminescent materials based on wood veneer with superior strength, transparency, and water resistance

Cited by 12 publications

References 45 publications

Color‐Tunable, Excitation‐Dependent, and Water Stimulus‐Responsive Room‐Temperature Phosphorescence Cellulose for Versatile Applications

Color‐Tunable, Excitation‐Dependent, and Water Stimulus‐Responsive Room‐Temperature Phosphorescence Cellulose for Versatile Applications

Luminescent transparent wood from a woody cellulosic template treated with an optical brightener

Electrospun Multifunctional Radiation Shielding Nanofibrous Membrane for Daily Human Protection

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