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] [What about the content of this article? (0)] [Affiliation(s)] [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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Li Z, Zhang JH, Li J, Wang S, Zhang L, He CY, Lin P, Melhi S, Yang T, Yamauchi Y, Xu X. Dynamical Janus-Like Behavior Excited by Passive Cold-Heat Modulation in the Earth-Sun/Universe System: Opportunities and Challenges. Small 2024:e2309397. [PMID: 38644343 DOI: 10.1002/smll.202309397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 03/02/2024] [Indexed: 04/23/2024]
Abstract
The utilization of solar-thermal energy and universal cold energy has led to many innovative designs that achieve effective temperature regulation in different application scenarios. Numerous studies on passive solar heating and radiation cooling often operate independently (or actively control the conversion) and lack a cohesive framework for deep connections. This work provides a concise overview of the recent breakthroughs in solar heating and radiation cooling by employing a mechanism material in the application model. Furthermore, the utilization of dynamic Janus-like behavior serves as a novel nexus to elucidate the relationship between solar heating and radiation cooling, allowing for the analysis of dynamic conversion strategies across various applications. Additionally, special discussions are provided to address specific requirements in diverse applications, such as optimizing light transmission for clothing or window glass. Finally, the challenges and opportunities associated with the development of solar heating and radiation cooling applications are underscored, which hold immense potential for substantial carbon emission reduction and environmental preservation. This work aims to ignite interest and lay a solid foundation for researchers to conduct in-depth studies on effective and self-adaptive regulation of cooling and heating.
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Affiliation(s)
- Zhengtong Li
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, China
| | - Jia-Han Zhang
- School of Electronic Information Engineering, Inner Mongolia University, Hohhot, 010021, China
- Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, China
| | - Jiaoyang Li
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, China
| | - Song Wang
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, China
| | - Lvfei Zhang
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, China
| | - Cheng-Yu He
- Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Peng Lin
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, China
| | - Saad Melhi
- Department of Chemistry, College of Science, University of Bisha, Bisha, 61922, Saudi Arabia
| | - Tao Yang
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Yangtze Institute for Conservation and Development, Hohai University, Nanjing, 210098, China
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland, 4072, Australia
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
| | - Xingtao Xu
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya, 464-8603, Japan
- Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022, China
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3
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Al-Qahtani SD, Al-Senani GM. Immobilization of rare-earth doped aluminate nanoparticles encapsulated with silica into polylactic acid-based color-tunable smart plastic window. Int J Biol Macromol 2024; 264:130766. [PMID: 38462101 DOI: 10.1016/j.ijbiomac.2024.130766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/04/2024] [Accepted: 03/07/2024] [Indexed: 03/12/2024]
Abstract
An inorganic/organic nanocomposite was used to develop an afterglow and color-tunable smart window. A combination of polylactic acid (PLA) plastic waste as an environmentally-friendly hosting agent, and lanthanide-activated strontium aluminum oxide nanoparticles (SAON) encapsulated with silica nanoparticles (SAON@Silica) as a photoluminescent efficient agent resulted in a smart organic/inorganic nanocomposite. In order to prepare SAON-encapsulated silica nanoparticles (SAON@Silica), the SAON nanoparticles were coated with silica using the heterogeneous precipitation method. By using transmission electron microscopy (TEM), SAON showed a diameter range of 5-12 nm, while the SAON@Silica nanoparticles showed a diameter range of 50-100 nm. In order to ensure the development of a colorless plastic film, a homogeneous dispersion of the phosphorescent Phosphor@Silica nanoparticles throughout the plastic bulk was confirmed. CIE Lab coordinates and luminescence spectra were used to study the color shift characteristics. Under visible light conditions, the plastic films were transparent. The photoluminescent films emitted green light at 525 nm when excited at 375 nm. The hydrophobicity and ultraviolet protection were enhanced without altering the fundamental physico-mechanical performance of the plastic sheet. The current color-tunable plastic can be used in many potential applications, such as warning signs, anti-counterfeiting barcodes, smart windows, and protective apparel.
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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
| | - Ghadah M Al-Senani
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
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4
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Yu Z, Ma Y, Mao L, Lian Y, Xiao Y, Chen Z, Zhang Y. Bidirectional optical response hydrogel with adjustable human comfort temperature for smart windows. Mater Horiz 2024; 11:207-216. [PMID: 37888540 DOI: 10.1039/d3mh01376f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Smart windows are effective in reducing the energy consumption of air conditioning and lighting systems, while contributing to maintaining the comfort zone of temperature in the indoor environment. Currently used smart windows mainly rely on traditional single-phase thermochromic material in which only one abrupt optical change occurs during temperature changes, and their inherent characteristics may not be suited for a practical balance of energy saving and privacy protection. Here, we developed a novel bidirectional optically responsive smart window (BSW) with unique bidirectional optical response features by introducing sodium dodecyl sulfate (SDS)/potassium tartrate (PTH) micelles into PNIPAM hydrogel to form a composite hydrogel, which was encapsulated in two glass panels. The upper critical solution temperature (UCST) and lowest critical solution temperature (LCST) of the material can be individually adjusted and are capable of matching the human comfort zone of temperature. In addition, the smart window exhibits remarkable transparency (92.5%), visible light transmission ratio (Tlum = 91.31%), and excellent solar modulation (ΔTsol,UCST = 76.34%, ΔTsol,LCST = 76.75%). Moreover, it possesses selectivity in transmitting light in the infrared band of solar radiation and can complete the "transparent-opaque" transition in a very narrow temperature range (<1 °C). When at comfortable temperatures, the highly transparent smart windows facilitate interior light and appreciation of the view. At low temperatures, SDS/PTH micelles aggregate to form large micelles, blocking the transmission of light and protecting customer privacy. At high temperatures, PNIPAM can undergo a "sol-gel" transition, thus blocking incident solar radiation. Taken together, these proposed materials with bidirectional optical response characteristics would be harnessed as a promising platform for building energy conservation, anti-counterfeiting, information encryption, and temperature monitoring.
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Affiliation(s)
- Zhenkun Yu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Provincial Engineering Center of Performance Chemicals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
| | - Yulin Ma
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Provincial Engineering Center of Performance Chemicals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
| | - Linhan Mao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Provincial Engineering Center of Performance Chemicals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
| | - Yue Lian
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Provincial Engineering Center of Performance Chemicals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
| | - Yanwen Xiao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Provincial Engineering Center of Performance Chemicals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
| | - Zhaoxia Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Provincial Engineering Center of Performance Chemicals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
| | - Yuhong Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Provincial Engineering Center of Performance Chemicals, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
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5
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Wang K, Zhang L, Jiang X. Freezing-resistant poly(N-isopropylacrylamide)-based hydrogel for thermochromic smart window with solar and thermal radiation regulation. J Colloid Interface Sci 2023; 652:663-672. [PMID: 37482487 DOI: 10.1016/j.jcis.2023.07.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/04/2023] [Accepted: 07/18/2023] [Indexed: 07/25/2023]
Abstract
Adaptive regulation of solar and thermal radiation by windows in diverse (hot and cold) climates is essential to reduce building energy consumption. However, conventional hydrogel-based thermochromic smart windows lack thermal radiation regulation, and have difficulty to combine high solar regulation with excellent freezing resistance. It is challenging to integrate the above performance into one hydrogel-based thermochromic window. Here, we firstly prepared poly(N-isopropylacrylamide-co-N, N-dimethylacrylamide)/ethylene glycol (PNDE) hydrogels with tunable and excellent freezing resistance (below -100 °C) by adding the anti-freezing agent ethylene glycol, and assembled PNDE hydrogels, polyvinylidene fluoride and polymethyl methacrylate-silver nanowires panels into a freezing-resistant smart window with solar and thermal radiation regulation (STR). PNDE hydrogels had an excellent thermochromic performance with luminous transmittance (Tlum) of 89.3 %, solar regulation performance (ΔTsol) of 80.7 % and tunable phase change temperature (τc, 22-44 °C). The assembled STR window showed high Tlum of 68.2 %, high ΔTsol of 62.6 %, suitable τc of ∼30 °C and freezing resistance to low temperature of -27 °C. Moreover, the different thermal emissivity (0.94 and 0.68) of the two sides of the STR window gave it the ability of radiative cooling in hot climates and warm-keeping in cold climates. Compared to the conventional thermochromic windows, the STR window promotes heat dissipation in hot conditions while reduces heat loss in cold conditions and is applicable to diverse climates, which is a promising energy-saving device for reducing building energy consumption.
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Affiliation(s)
- Kai Wang
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
| | - Lei Zhang
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
| | - Xiancai Jiang
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, China; Qingyuan Innovation Laboratory, Quanzhou 362114, China.
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6
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Xie L, Wang X, Zou X, Bai Z, Liang S, Wei C, Zha S, Zheng M, Zhou Y, Yue O, Liu X. Engineering Self-Adaptive Multi-Response Thermochromic Hydrogel for Energy-Saving Smart Windows and Wearable Temperature-Sensing. Small 2023; 19:e2304321. [PMID: 37658503 DOI: 10.1002/smll.202304321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/21/2023] [Indexed: 09/03/2023]
Abstract
Buildings account for ≈40% of the total energy consumption. In addition, it is challenging to control the indoor temperature in extreme weather. Therefore, energy-saving smart windows with light regulation have gained increasing attention. However, most emerging base materials for smart windows have disadvantages, including low transparency at low temperatures, ultra-high phase transition temperature, and scarce applications. Herein, a self-adaptive multi-response thermochromic hydrogel (PHC-Gel) with dual temperature and pH response is engineered through "one-pot" integration tactics. The PHC-Gel exhibits excellent mechanical, adhesion, and electrical conductivity properties. Notably, the low critical solubility temperature (LCST) of PHC-Gel can be regulated over a wide temperature range (20-35 °C). The outdoor practical testing reveals that PHC-Gel has excellent light transmittance at low temperatures and radiation cooling performances at high temperatures, indicating that PHC-Gel can be used for developing energy-saving windows. Actually, PHC-Gel-based thermochromic windows show remarkable visible light transparency (Tlum ≈ 95.2%) and solar modulation (△Tsol ≈ 57.2%). Interestingly, PHC-Gel has superior electrical conductivity, suggesting that PHC-Gel can be utilized to fabricate wearable signal-response and temperature sensors. In summary, PHC-Gel has broad application prospects in energy-saving smart windows, smart wearable sensors, temperature monitors, infant temperature detection, and thermal management.
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Affiliation(s)
- Long Xie
- College of Chemistry and Chemical Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Xuechuan Wang
- College of Chemistry and Chemical Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Xiaoliang Zou
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Zhongxue Bai
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Shuang Liang
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Chao Wei
- College of Chemistry and Chemical Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Siyu Zha
- College of Chemistry and Chemical Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Manhui Zheng
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Yi Zhou
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Ouyang Yue
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
| | - Xinhua Liu
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China
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7
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Li G, Chen J, Yan Z, Wang S, Ke Y, Luo W, Ma H, Guan J, Long Y. Physical crosslinked hydrogel-derived smart windows: anti-freezing and fast thermal responsive performance. Mater Horiz 2023; 10:2004-2012. [PMID: 37000535 DOI: 10.1039/d3mh00057e] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Thermochromic hydrogels are versatile smart materials that have many applications, including in smart windows, sensing, camouflage, etc. The previous reports of hydrogel smart windows have been based on covalent crosslinking, requiring multistep processing, and complicated preparation. Moreover, most research studies focused on enhancing the luminous transmittance (Tlum) and modulating ability (ΔTsol), while the structural integrity and antifreezing ability, which are essential in practical applications, have been compromised and rarely investigated. Herein, we develop a new physical (noncovalent crosslinked) hydrogel-derived smart window by introducing an in situ free radical polymerization (FRP) of N-isopropylacrylamide (NIPAM) in a glycerol-water (GW) binary solvent system. The noncovalent crosslinked PNIPAM GW solutions are facilely synthesized, giving outstanding freezing tolerance (∼-18 °C), a comparably high Tlum of 90%, and ΔTsol of 60.8%, together with added advantages of fast response time (∼10 s) and good structural integrity before and after phase transition. This work could provide a new strategy to design and fabricate heat stimulated smart hydrogels not limited to energy saving smart windows.
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Affiliation(s)
- Gang Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Jiwei Chen
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Zhaonan Yan
- Institute of Nanoscience and Nanotechnology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Shancheng Wang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Yujie Ke
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Wei Luo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Huiru Ma
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Jianguo Guan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Yi Long
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- Department of Electronic Engineering, The Chinese University of Hong Kong, New Territories, Hong Kong SAR, China.
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Zhang Z, Zhang L, Zhou Y, Cui Y, Chen Z, Liu Y, Li J, Long Y, Gao Y. Thermochromic Energy Efficient Windows: Fundamentals, Recent Advances, and Perspectives. Chem Rev 2023. [PMID: 37053573 DOI: 10.1021/acs.chemrev.2c00762] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Thermochromic energy efficient windows represent an important protocol technology for advanced architectural windows with energy-saving capabilities through the intelligent regulation of indoor solar irradiation and the modulation of window optical properties in response to real-time temperature stimuli. In this review, recent progress in some promising thermochromic systems is summarized from the aspects of structures, the micro-/mesoscale regulation of thermochromic properties, and integration with other emerging energy techniques. Furthermore, the challenges and opportunities in thermochromic energy-efficient windows are outlined to promote future scientific investigations and practical applications in building energy conservation.
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Affiliation(s)
- Zongtao Zhang
- School of Materials Science and Engineering, Zhengzhou University, Kexue Avenue 100, Zhengzhou 450001, China
| | - Liangmiao Zhang
- School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 200444, China
| | - Yang Zhou
- State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China
| | - Yuanyuan Cui
- School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 200444, China
| | - Zhang Chen
- School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 200444, China
| | - Yinping Liu
- State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China
| | - Jin Li
- School of Materials Science and Engineering, Zhengzhou University, Kexue Avenue 100, Zhengzhou 450001, China
| | - Yi Long
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
- Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 999077, China
| | - Yanfeng Gao
- School of Materials Science and Engineering, Shanghai University, Shangda Road 99, Shanghai 200444, China
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Tian J, Jin C, Wu X, Liao C, Xie J, Luo Y. Synthesis of temperature- and humidity-induced dual stimulation film PU-PNIPAm n and its independent film formation as a smart window application. RSC Adv 2023; 13:8923-8933. [PMID: 36936840 PMCID: PMC10020989 DOI: 10.1039/d2ra08052d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 02/01/2023] [Indexed: 03/19/2023] Open
Abstract
Dynamic windows, which switch between transparent and opaque states as the temperature changes, can be applied in buildings to reduce building energy consumption. Poly(N-isopropylacrylamide) (PNIPAm) is the most studied thermochromic hydrogel for climate-resilient smart window applications. In addition to its poor mechanical properties and low reaction rate, the PNIPAm hydrogel must be sandwiched between two pieces of glass to form an interlayer in practical applications. Here, durable PU-PNIPAm n copolymers for smart windows were synthesized by reacting the synthesized poly-NIPAm diols with isocyanate (-NCO) monomer, which greatly improved the mechanical properties of the hydrogel and it was able to form a film alone. These temperature-sensitive films can switch between transparent (>80% transmittance) and opaque (<5% transmittance) states in less than 10 minutes, with no degradation in optical contrast, switching speed, or uniformity after at least 100 switching cycles.
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Affiliation(s)
- Jing Tian
- Department of Materials and Chemical Engineering, Yibin University Yibin 644007 PR China
| | - Chengguo Jin
- Department of Materials and Chemical Engineering, Yibin University Yibin 644007 PR China
| | - Xudong Wu
- Department of Materials and Chemical Engineering, Yibin University Yibin 644007 PR China
| | - Cong Liao
- Department of Materials and Chemical Engineering, Yibin University Yibin 644007 PR China
| | - Jiangping Xie
- Department of Materials and Chemical Engineering, Yibin University Yibin 644007 PR China
| | - Yajun Luo
- Department of Materials and Chemical Engineering, Yibin University Yibin 644007 PR China
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10
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Feng Y, Ma W, Li H, Yang M, Yu Y, Liu S, Zeng X, Huang F, Yang Y, Li Z. Phase-Changing Polymer Film for Smart Windows with Highly Adaptive Solar Modulation. ACS Appl Mater Interfaces 2023; 15:5836-5844. [PMID: 36688968 DOI: 10.1021/acsami.2c19237] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Adjusting sunlight and thermal radiation from windows is important in efficient energy-saving applications. A high solar modulation (ΔTsol) capability as well as a high luminous transmittance (Tlum) are the ultimate aim of smart windows. In this study, hydroxypropyl cellulose (HPC), W-doped VO2, and poly-N-iso-propylacrylamide (PNIPAm) composite hydrogel films were produced. The sample was prepared between two glasses to constitute a smart window with a sandwich construction structure, which exhibits a high Tlum of 87.16%, a ΔTsol of 65.71%, and a lower critical solution temperature (LCST) of 29 °C. The practical applications of conventional PNIPAm hydrogels are limited by the volume contraction of phase transition. Here, this challenge is addressed by the simple method of combining with HPC. The PNIPAm-2.5 wt % HPC hydrogels possess thermo-responsive contractility with a volume shrinkage rate of 8.5%. Even after 100 high- and low-temperature cyclic durability tests, the smart windows still exhibit a high solar modulation capability.
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Affiliation(s)
- Yuqin Feng
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Wenxia Ma
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Haibo Li
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Ming Yang
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Yunzi Yu
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Shuming Liu
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Xianglong Zeng
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Fang Huang
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Yongsheng Yang
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
| | - Zehao Li
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Fingshing, Wuhan Textile University, Wuhan 43003, China
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11
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Shi H, Yang Y, Huang Y, Li X, Shi Y. Anisotropic Single-Domain Hydrogel with Stimulus Response to Temperature and Ionic Strength. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c01963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Haidong Shi
- School of Physical Science and Technology, Ningbo University, No. 818 Fenghua Road, Jiangbei District, Ningbo, Zhejiang 315211, China
| | - Yanling Yang
- School of Physical Science and Technology, Ningbo University, No. 818 Fenghua Road, Jiangbei District, Ningbo, Zhejiang 315211, China
| | - Yanping Huang
- Institute of High Pressure Physics, School of Physical Science and Technology, Ningbo University, No. 818 Fenghua Road, Jiangbei District, Ningbo, Zhejiang 315211, China
| | - Xuke Li
- Ningbo Key Laboratory of Specialty Polymers, School of Materials Science and Chemical Engineering, Ningbo University, No. 818 Fenghua Road, Jiangbei District, Ningbo, Zhejiang 315211, China
| | - Yue Shi
- School of Physical Science and Technology, Ningbo University, No. 818 Fenghua Road, Jiangbei District, Ningbo, Zhejiang 315211, China
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12
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Yan Z, Wang Y, Li T, Xu P, Huang J, Jiang J, Zhang X, Xia B, Wang S, Dong W. Dual-functional NIR/UV-shielding poly(lactic acid) nanocomposite films through CWO@PDA core–shell nanoparticles. NEW J CHEM 2022. [DOI: 10.1039/d2nj02520e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fabrication of dual-functional NIR/UV-shielding PLA nanocomposite films by constructing interfacial stereocomplex crystallites.
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Affiliation(s)
- Zhendong Yan
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Yang Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Ting Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Pengwu Xu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Jing Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Jie Jiang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Xuhui Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Bihua Xia
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Shibo Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Weifu Dong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
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