SENSORS
·
2025
·Vol. 25
·期 6
·1670
·
IF 3.5
Yujie Niu,Jinxin Wang,Zhongxing Zhang,Ting Liu
Gaseous oxygen detection is essential in numerous production and manufacturing sectors. To meet the varying oxygen detection requirements across different fields, techniques that offer a wide oxygen detection range should be developed. In this study, a wood-based oxygen sensing material was designed using balsa wood as the supporting matrix and gadolinium hemoporphyrin monomethyl ether (Gd-HMME) as the oxygen-sensitive indicator. The wood-based Gd-HMME exhibits a cellular porous structure, which not only facilitates the loading of a substantial number of indicator molecules but also enables the rapid interaction between indicators and oxygen molecules.OPis defined as the ratio of the phosphorescence intensity of the oxygen-sensing material in the anaerobic and aerobic environment. A linear relationship betweenOPand oxygen partial pressure ([O2]) was obtained within the whole range of [O2] (0–100 kPa). The wood-based Gd-HMME exhibited excellent resistance to photobleaching, along with a rapid response time (3.9 s) and recovery time (4.4 s). It was demonstrated that the measurement results obtained using wood-based Gd-HMME were not influenced by other gaseous components present in the air. An automatic oxygen detection system was developed using LabVIEW for practical use, and the limit of detection was determined to be 0.01 kPa.
研究领域:
材料科学
·
光学传感
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2024
·
IF 10.7
Xi Wang,Xiao Meng,Tongtong Cui,Qian Hu,Bowen Jin,Yisheng He,Xingjun Zhu,Chunhong Ye
Room temperature phosphorescence (RTP) materials with wood as framework are highly desirable due to their extended afterglow , high haze and good mechanical properties, which is highly desired in lighting materials. However, it remains challenging to obtain wood-based RTP materials that possess on-demand afterglow colors while maintaining high transparency across the entire visible spectrum. In this study, long-persistent phosphorescent transparent composite with tunable afterglow color is fabricated by infiltrating delignified wood with phosphors (including carbazole , naphthalene , and pyrene) doped polymethyl methacrylate (PMMA). Such RTP woods indicate remarkable transparency, over 70 %, and an extended afterglow duration of up to 8 s. Here, PMMA serves as rigid surrounding to suppress the non-radiative transition of phosphors to ensure phosphorescence, and to fulfill in the wood lumen to match the refractive index of cellulose for transparency. By formulating phosphors with different types and concentration ratios, transparent woods with diverse phosphorescence colors, and white emission, are successfully achieved. Furthermore, the RTP woods demonstrate dynamically tunable afterglow colors over time based on the varied phosphorescent lifetimes. Characterized by their high transparency and tunable colors, these natural wood-based RTP materials have great potentials for application in the fields of LED materials, optics, and building materials.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Biomimetics
·
2025
·Vol. 10
·期 5
·334
·
IF 3.9
Zebin Zhao,Wenxuan Wang,Zhichen Ba,Yuze Zhang,Hongbo Xu,Daxin Liang
An efficient solar water evaporator is an important strategy for addressing the problem of water shortage. Constructing high-performance solar interfacial evaporators through bionic design has become a crucial approach for performance enhancement. Through the study of zebra patterns, it has been found that the black-and-white alternating patterns generate vortices on the surface of the zebra’s skin, thereby reducing the temperature. By utilizing the vortices brought about by the temperature difference, the design of a solar water evaporator is created based on the bionic zebra pattern, so as to improve its water evaporation performance. In this work, green and sustainable wood is used as the base of the evaporator, and the bionic design of zebra stripes is adopted. Meanwhile, the following research is conducted: The wood is cut into thin slices with dimensions of 30 × 30 × 5 mm3, and a delignification treatment is performed. Tannic acid-Fe ions are used as the photothermal material for functionalization. A series of stable patterned water evaporators based on delignification wood loaded with tannic acid-Fe ion complex (TA-Fe3+) are successfully prepared. Among them, the wood-based solar water evaporator with 3 mm zebra stripes exhibits excellent photothermal water evaporation performance, achieving a water evaporation rate of 1.44 kg·m−2·h−1under the illumination intensity of one sun. Its water evaporation performance is significantly superior to that of other coating patterns, proving that the bionic design of zebra patterns is effective and can improve water evaporation efficiency. This work provides new insights into the development of safe and environmentally friendly solar interfacial water evaporation materials through bionic design.
研究领域:
材料科学
·
环境科学
·
仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Haohang Fang,Qianqian Yu,Di Xie,Yiyan Cai,Jianping Sun,Boxi Chen,Houkai Huang,Xin Li,Siyang Dai,Shaohong Shi,Yiqiang Wu,Fangchao Cheng
Membrane filtration technology demonstrates excellent continuous processing capability in organic wastewater treated processes, which is usually applied in continuous industrial processes. However, it still faces a contradiction between membrane flux and treatment efficiency. In this study, a flexible wood-based photocatalytic membrane with high membrane flux and exceptional photofenton performance was developed via partial fragment wood components and uniform loading of multi-metal oxide nanocatalysts, which breaks mentioned contradiction. The homogeneous and efficient wood-based dual-function water filtration/photofenton system was established by leveraging the directional porous structure of wood in conjunction with the nanocatalysts while adjusting their ratios, enabling effective purification of highly concentrated mixed organic wastewater. Under one solar intensity and negative pressure filtration (0.03 MPa), the system treated a mixed solution containing Rhodamine B, phenol , and tetracycline at a concentration of 280 mg L −1 with the removal efficiencies of 100 %, 93.4 %, and 90.2 %, respectively, and the membrane flux could up to 315.3 Lm −2 h −1 within one hour. The membrane showed a good recycling performance, and the decay rates were all below 5 % after five cycles. This wood-based dual-function water filtration/photo-Fenton system provides a new approach for the continuous dynamic treatment of high-concentration organic wastewater on an industrial scale.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Cell Reports Physical Science
·
2021
·
IF 0
Jingwen Yuan,Yingxiang Zhai,Keliang Wan,Shouxin Liu,Jian Li,Shujun Li,Zhijun Chen,Tony D. James
Sustainable organic afterglow room-temperature phosphorescence (RTP) is a particularly attractive phenomenon but remains difficult to achieve. Herein, inspired by the afterglow RTP of natural basswood, we prepare a series of sustainable afterglow RTP materials by confining lignin within a 3D poly(acrylic acid) network that mimics the wood matrix. The RTP emission of these materials could be finely tuned either by varying the drying temperature or the crosslinking density. Afterglow RTP emission could also be produced by embedding different types of lignin in a variety of 3D polymeric networks, thus demonstrating the generality of our strategy for preparing sustainable lignin-based RTP materials. As an illustration of potential applications, the lignin-based RTP materials are used to coat cotton fibers, which are then incorporated into luminescent textiles.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Zhiyuan Yin,Xinran Yin,Yingxuan Feng,Sili Huang,Runzhi Zhang,Xujun Zhang,Xiubing Du,Suqin Yu,Yingying Li,Yiqiang Wu
Recently, there has been growing interest in utilizing wood-based composites for electromagnetic interference (EMI) shielding due to their unique porous and sustainability. This study investigates the potential of using wood as a matrix material to enhance EMI shielding performance by incorporating function materials into its natural channels. Specifically, we developed a novel wood-based composite by in situ incorporation of NiFe 2 O 4 spinel ferrite into the wood’s porous structure, resulting in an innovative EMI shielding material with tailored magnetic and structural properties. A detailed evaluation of the composites’ structural, morphological, magnetic, and electromagnetic characteristic, as well as their thermal stability, was conducted. The wood@NiFe 2 O 4 composite, with a thickness of only 1 mm, demonstrate an excellent EMI shielding effectiveness of 30.4 dB in the X-band. This work not only advances the development of sustainable, biomass-derived EMI shielding materials but also paves the way for reducing reliance on conventional, non-renewable, and costly materials for electromagnetic protection, offering a more enviromentally friendly and cost-effective solution.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2022
·
IF 6.449
Linhan He,Mingjie Wang,Songwu Chen,Xiaoling Liu,Ruiqing Ren,Liuliu Wang,Guidan Chen,Yao Chen
It is vital to effectively retain the high latent heat of phase change material (PCM) when it is encapsulated in package matrix. Natural Wood has been considered as a potential matrix for PCM package as its micro-pore and nano-pore structures and rich in active groups. However, the influence of the wood pore structure on the latent heat of PCM is still unclear. In this study, paraffin wax was encapsulated with delignified balsa wood, and the influence of the pore structure of delignified balsa wood on the latent heat of PCM was investigated. The obtained results showed that the melting latent heat of the wood-based phase change material (WCPCM) with delignification treatment increased from 135.7 J/g to 175.1 J/g. This was attributed to the lower effect of the spatial confinement on the cell wall with the opening of pits and the improvement of permeability, due to the increase of the number of pores that are larger than 10 nm. The pores that are smaller than 10 nm on the cell wall were closed due to hydrogen bonding, which caused the shrinking of the wood cell wall and the increase of porosity. A superhydrophobic surface with photothermal function was constructed on WCPCM by spraying polydimethylsiloxane (PDMS) and depositing candle soot (CS). The composites can be heated from room temperature to 64.9 °C within 150 s under simulated sunlight. The efficiency of the light-thermal conversion is 87.9%. PDMS acted as an intermediate bridge to increase the stability of CS coating and gave a self-cleaning ability to the photothermal conversion coating. The composites with photothermal and self-cleaning functional coat can be used outdoor for the energy conservation of buildings.
研究领域:
材料科学
·
能源工程
✓ 已验证
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2024
·
IF 8.1
Shuang Wu,Ting-yu Zhu,Zhu Zeng,De-xiang Sun,Jing-hui Yang,Xiao-dong Qi,Yong Wang
As electronic devices become more integrated into daily life, concerns about electromagnetic radiation pollution become more severe, despite the increased portability they offer. Designing a lightweight and multifunctional material that is environmentally friendly, thermally conductive, and electromagnetically shielded is urgently needed. In this work, novel composites were fabricated by incorporating Ag@MXene hybrid particles into the wood-based aerogel. Compared with the aerogels containing only Ag nanoparticles (AgNPs) or MXene , the Ag@MXene/W aerogel exhibited more homogeneous dispersion of unfolded MXene nanosheets and more AgNPs but higher porosity (97.1 %) and smaller density (0.047 g cm −3 ). Consequently, the Ag@MXene/W aerogel exhibited high compressibility and low energy dissipation, remarkable strain sensitivity, impressive electrical conductivity (33.9 S m −1 ) and specific electromagnetic shielding efficiency (5765.96 dB cm 2 g −1 ), and high thermal conductivity (0.81 W m −1 K −1 ). The excellent comprehensive performances ensure that the aerogel has wide applications in various fields, including electromagnetic pollution protection, strain detecting, and thermal management, etc.
研究领域:
材料科学
·
环境科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
CELLULOSE
·
2021
·Vol. 29
·期 1
·223-232
·
IF 5.044
Huang Wei,Li Hongqiang,Lai Xuejun,Chen Zhonghua,Zheng Longzhu,Zhong Yu,Zeng Xingrong
With the increasing importance of electronic devices in modern industry, considerable efforts have been devoted to solving the problem that the electronic devices fail to work normally in a cold environment. Herein, we designed and fabricated a graphene wrapped wood-based phase change composite with electro-thermal conversion and energy storage capabilities by delignification of natural wood, coverage and reduction of graphene oxide (GO), impregnation of 1-tetradecanol (TD) and package of epoxy resin. The phase change composite exhibited large latent heat of fusion (218.5 J/g), excellent shape stability with high TD packing content of 88.4% and favorable reliability even after 50 heating–cooling cycles. More importantly, the Joule heat conversed by the rGO layer under voltage was able to quickly transfer to the surrounded TD, leading to the increase of the overall temperature of the composite and the efficient storage of energy. The findings conceivably stand out a sustainable strategy to fabricate an electrically driven wood-based phase change composite for preheating and heat preservation of electronics.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
BIOMACROMOLECULES
·
2021
·
IF 6.988
Chuchu Chen,Yiren Wang,Tong Zhou,Zhangmin Wan,Quanling Yang,Zhaoyang Xu,Dagang Li,Yongcan Jin
The purpose of this research is to develop strong and tough wood-based hydrogels, which are reinforced by an aligned cellulosic wood skeleton. The hypothesis is that improved interfacial interaction between the wood cell wall and a polymer is of great importance for improving the mechanical performance. To this end, a facile and green approach, called ultraviolet (UV) grafting, was performed on the polyacrylamide (PAM)-infiltrated wood skeleton without using initiators. An important finding was that PAM-grafted cellulose nanofiber (CNF) architectures formed in the obtained hydrogels under UV irradiation, where CNFs themselves serve as both initiators and cross-linkers. Moreover, an alkali swelling treatment was utilized to improve the accessibility of the wood cell wall before UV irradiation and thus facilitate grafting efficiency. The resulting alkali-treated Wood-g-PAM hydrogels exhibited significantly higher tensile properties than those of the Wood/PAM hydrogel and were further assembled into conductive devices for sensor applications. We believe that this UV grafting strategy may facilitate the development of strong wood-based composites with interesting features.
研究领域:
材料科学
·
生物工程
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 12
·期 3
·1642-1653
·
IF 11.9
Qingtao Zeng,Xuejun Lai,Hongqiang Li,Zhonghua Chen,Xingrong Zeng,Liqun Zhang
The trade-off between the safety and electrochemical performance of electrolytes for electrochemical energy-storage devices is a key and urgent issue to be solved. Herein, a wood-based self-protection electrolyte (DW@SPE) was fabricated by delignified wood (DW), polyethylene oxide-block-polypropylene oxide-block-polyethylene oxide (PEO–PPO–PEO) and lithium chloride (LiCl) via vacuum soaking. DW@SPE displayed excellent electrochemical performance with high ionic conductivity and specific capacitance of 1.09 S m−1 and 112.1 F g−1, respectively. Interestingly, owing to the reversible phase transition characteristic of SPE and the unique channel structure of DW, DW@SPE had an anisotropic electrochemical thermal response. As the temperature increased to the phase transition point, the ionic conductivity of DW@SPE fell sharply when parallel to the through-channel direction of DW, showing the capability of smart thermal-shutdown self-protection. Contrarily, the ionic conductivity increased gradually as the temperature rose when perpendicular to the through-channel direction of DW, thereby exhibiting accurate temperature-sensing and sensitive fire-warning performance (2.6 s). DW@SPE self-extinguished rapidly after fire removal, and its limiting oxygen index reached 61.5%, demonstrating outstanding flame retardancy. Our work provides new insights into the fabrication and application of high-efficiency and high-safety electrolytes with natural renewable material, which is beneficial to promote the sustainable development of energy-storage devices.
研究领域:
材料科学
·
能源存储技术
·
可持续发展
✓ 已验证
产品关联
DOI
高影响因子
CELLULOSE
·
2023
·Vol. 30
·期 10
·6601-6619
·
IF 5.7
Shan Zhiqiang,Jia Xiaohua,Tian Rui,Yang Jin,Wang Sizhe,Li Yong,Shao Dan,Feng Lei,Song Haojie
Shifting of the preparation strategy of paper-based friction materials from unsustainable to green, environmentally friendly, and recyclable constitutes an important part of low-carbon manufacturing. Herein, a solvent encapsulation strategy involving wood dissolution in a deep eutectic solvent and lignin–cellulose structural reorganization was adopted to obtain a recyclable wood-based slurry from poplar powder. Lignin–cellulose film (LCF) was obtained by vacuum filtration and followed by removal of moisture from slurry. Micro-nanocellulose was used as a reinforcement, which interacted with the lignin binder through hydrogen bonding. The average tensile strength and flexibility of LCF reached 68.7 MPa and 3.06 MJ m −3 respectively. With a minimum coefficient of friction of 0.19 and a minimum wear rate of 6.9 × 10 −3 mm 3 (N m) −1 , LCF could maintain long-lasting frictional stability in a stable condition. Moreover, the wood-based slurry could be easily recycled through convenient experimental treatments, or degraded by microorganisms in the natural environment within 40 days. This sustainable wood-based material obtained via a green and recyclable production strategy provides a promising alternative method to that of traditional paper-based friction materials. Graphical abstract Herein, a solvent encapsulation strategy which involved wood dissolution in deep eutectic solvent (DES) and lignin–cellulose structural reorganization was adopted to obtain recyclable wood-based films from poplar wood, which shows high mechanical strength, excellent flexibility, water stability, and high wear resistance.
研究领域:
材料科学
·
环境科学
·
林业工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）