1
|
Zhu J, Wang J, Liu Q, Yu J, Liu J, Chen R, Song D, Li R, Wang J. Advanced MXene-based materials for efficient extraction of uranium from seawater and wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 942:173755. [PMID: 38851336 DOI: 10.1016/j.scitotenv.2024.173755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/02/2024] [Accepted: 06/02/2024] [Indexed: 06/10/2024]
Abstract
In order to realize the low-carbon development policy, the large-scale development and utilization of nuclear energy is very essential. Uranium is the key resource for nuclear industry. The extracting and recycling uranium from seawater and nuclear wastewater is necessary for secure uranium reserves, ensure energy security, control pollution and protect the environment. The novel nanomaterial MXene possesses the layered structure, high specific surface area, and modifiable surface terminal groups, which allowed it to enrich uranium. In addition, good photovoltaic and photothermal properties improves the ability to adsorb uranium. The excellent radiation resistance of the MAX phase strongly indicates the potential use of MXene as an effective uranium adsorbent. However, there are relatively few reviews on its application in uranium extraction and recovery. This review focuses on the recent advances in the use of MXene-based materials as highly efficient adsorbents for the recovery of uranium from seawater and nuclear wastewater. First, the structural, synthetic and characterization aspects of MXene materials are introduced. Subsequently, the adsorptive properties of MXene-based materials are evaluated in terms of uranium extraction recovery capability, selectivity, and reproducibility. Furthermore, the interaction mechanisms between uranium and MXene absorbers are discussed. Finally, the challenges for MXene materials in uranium adsorption applications are proposed for better design of new types of MXene-based adsorbents.
Collapse
Affiliation(s)
- Jiahui Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China
| | - Jing Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China
| | - Qi Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Hainan Harbin Institute of Technology Innovation Research Institute Co., Ltd., Hainan 572427, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China
| | - Jing Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China.
| | - Jingyuan Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China
| | - Rongrong Chen
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China
| | - Dalei Song
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China
| | - Rumin Li
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China
| | - Jun Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Marine Special Materials, Ministry of Industry and Information Technology, China.
| |
Collapse
|
2
|
Song X, Xu C, Wei H, Li Y, Sun R, Wang C, Dong J, Feng X. Preparation and Thermal Properties of Magnetic PW@CaCO 3@Fe 3O 4 Phase-Change Microcapsules and Their Application to Textile Fabrics. Molecules 2024; 29:4151. [PMID: 39274999 PMCID: PMC11397394 DOI: 10.3390/molecules29174151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 08/16/2024] [Accepted: 08/27/2024] [Indexed: 09/16/2024] Open
Abstract
Multifunctional thermal regulation materials with good thermal properties, efficient magnetic performance, and satisfactory interface bonding on fabrics are highly desirable for protective fabrics, building winter protection materials, medical thermal regulation materials, and special-environment work clothing. Herein, a new class of magnetic phase-change PW@CaCO3@Fe3O4 microcapsules was successfully produced by controlling the content of magnetic Fe3O4 through a self-assembly method. The microstructure, chemical composition, phase-change behavior, and magnetic properties of the products were sequentially characterized and analyzed. The findings revealed that the obtained microcapsules possessed regular spherical structure with uniform size and excellent thermal properties. Furthermore, PW@CaCO3 with Fe3O4 (i.e., 8% mass fraction) showed the highest thermal regulation and magnetic properties and reached an enthalpy value of 94.25 J·g-1, which is clearly superior to the value of 77.51 J·g-1 for PW@CaCO3 microcapsules. At the same time, the encapsulation efficiency of 38.7% and saturation magnetization of 2.50 emu·g-1 were the best among the four given samples. Therefore, the good paramagnetic feature had a significant synergistic effect on the thermal properties of the PW@CaCO3 microcapsules under study. More importantly, multifunctional fabrics loaded with PW@CaCO3@Fe3O4 microcapsules still showed an enthalpy value of 25.81 J·g-1 after several washes and have the potential to be used widely in the field of temperature control. The thermal regulation fabrics in this study exhibited excellent thermal properties and fastness, which contribute to their practical applications in advancing multifunctional textiles and high-technology modern fabrics.
Collapse
Affiliation(s)
- Xiaolei Song
- Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, China
| | - Congzhu Xu
- Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, China
- College of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, China
| | - Hong Wei
- Hangzhou Jingsha Information Technology Co., Ltd., Hangzhou 311200, China
| | - Yonggui Li
- Faculty of Clothing and Design, Minjiang University, Fuzhou 350108, China
- College of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, China
| | - Runjun Sun
- College of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, China
| | - Chunxia Wang
- School of Textile and Clothing, Yancheng Institute of Technology, Yancheng 224051, China
| | - Jie Dong
- College of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, China
| | - Xinqun Feng
- College of Fashion and Design, Donghua University, Shanghai 201620, China
| |
Collapse
|
3
|
Lam DV, Dung DT, Nguyen UNT, Kang HS, Bae BS, Kim HD, Lim M, Kim D, Kim JH, Lee SM. Metal-Organic Frameworks as a Thermal Emitter for High-Performance Passive Radiative Cooling. SMALL METHODS 2024:e2401141. [PMID: 39149767 DOI: 10.1002/smtd.202401141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Indexed: 08/17/2024]
Abstract
Passive radiative cooling represents a transformative approach to achieving sustainable cooling on Earth without relying on energy consumption. In this research, the optical characteristics of five readily accessible metal-organic frameworks (MOFs): ZIF-67(Co), MOF-74(Ni), HKUST-1(Cu), MOF-801(Zr), and UiO-66(Zr) are meticulously explored. The objective is to identify the pivotal factors that influence their ability to facilitate radiative cooling. Through an in-depth analysis encompassing spectroscopic features, surface texture, and porosity, it is found that the MOFs' cooling efficacy is largely influenced by their optical bandgaps and functional groups, although other factors like chemical composition and structural characteristics remain to be considered. Notably, UiO-66(Zr) emerged as the standout performer, boasting an impressive solar reflectance of 91% and a mid-infrared emissivity of 96.8%. Remarkably, a fabric treated with UiO-66(Zr) achieved a substantial sub-ambient cooling effect, lowering temperatures by up to 5 °C and delivering a cooling power of 26 W m-2 at 300 K. The findings underscore the vast potential of MOFs in offering new opportunities to advance passive radiative cooling technologies, paving the way for their extensive application in this field.
Collapse
Affiliation(s)
- Do Van Lam
- National Creative Research Initiative Center for Functionally Antagonistic Nano-Engineering, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Dao Thi Dung
- Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, South Korea
- University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, South Korea
| | - Uyen Nhat Trieu Nguyen
- Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, South Korea
- University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, South Korea
| | - Hyun Seok Kang
- Wearable Platform Materials Technology Center (WMC), Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Byeong-Soo Bae
- Wearable Platform Materials Technology Center (WMC), Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea
| | - Hyeon-Don Kim
- Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, South Korea
| | - Mikyung Lim
- Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, South Korea
| | - Duckjong Kim
- School of Mechanical and Aerospace Engineering, Gyeongsang National University, 501 Jinju-daero, Jinju, Gyeongnam, 52828, South Korea
| | - Jae-Hyun Kim
- Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, South Korea
- University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, South Korea
| | - Seung-Mo Lee
- Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, South Korea
- University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, South Korea
| |
Collapse
|
4
|
Hu W, Zhang F, Tan X, Tu Y, Nie S. Antibacterial PVDF Coral-Like Hierarchical Structure Composite Film Fabrication for Self-Cleaning and Radiative Cooling Effect. ACS APPLIED MATERIALS & INTERFACES 2024; 16:19828-19837. [PMID: 38567790 DOI: 10.1021/acsami.4c01926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Passive radiative cooling (PRC) is a zero-energy-consumption technology that reflects sunlight and radiates heat to cold outer space. In this work, a porous poly(vinylidene fluoride)-poly(methyl methacrylate) (PVDF-PMMA) composite film is fabricated by decorating zinc-imidazolate metal-organic framework (MOF) (ZIF-8) particles obtained by phase inversion. Due to the competent scattering via the coral-like hierarchical structures and the vibration excitations of specific functional groups, the prepared film exhibits good solar reflectance (92.6%) and intermediate infrared emittance (99.1%), with an average sub-ambient cooling of 10.4 °C under a solar radiation intensity of 0.6 AM1.5. Additionally, poly(vinylidene fluoride) has a low surface energy, while the ZIF-8 particles and coral-like hierarchical structures enhance the surface roughness, endowing the surface with significant superhydrophobicity characterized by a water contact angle (WCA) of 157.5° and a sliding angle (SA) of 2°. These films exhibit excellent antibacterial properties. When the content of ZIF-8 particles in the film is 300 mg·L-1, the antibacterial rate reaches 100% after 1 h of treatment. Thus, the ZIF-8 porous poly(vinylidene fluoride)-poly(methyl methacrylate) composite (ZPPP) film has potential application prospects in areas with high health and environmental requirements, such as cold chain transportation and public spaces.
Collapse
Affiliation(s)
- Weiwei Hu
- College of Science and College of Materials and Chemical Engineering, Solar Energy High Value Utilization and Green Conversion Hubei Provincial Engineering Research Center, China Three Gorges University, Hubei, Yichang 443000, China
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials (CTGU), China Three Gorges University, Hubei, Yichang 443000, China
| | - Fatao Zhang
- College of Science and College of Materials and Chemical Engineering, Solar Energy High Value Utilization and Green Conversion Hubei Provincial Engineering Research Center, China Three Gorges University, Hubei, Yichang 443000, China
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials (CTGU), China Three Gorges University, Hubei, Yichang 443000, China
| | - Xinyu Tan
- College of Science and College of Materials and Chemical Engineering, Solar Energy High Value Utilization and Green Conversion Hubei Provincial Engineering Research Center, China Three Gorges University, Hubei, Yichang 443000, China
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials (CTGU), China Three Gorges University, Hubei, Yichang 443000, China
| | - Yiteng Tu
- State Grid Yichang Electric Power Supply Company, Yichang 443000, China
| | - Shijin Nie
- Laboratory of Fundamental Science on Ergonomics and Environmental Control, School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
| |
Collapse
|
5
|
Lan C, Meng J, Pan C, Jia L, Pu X. Hierarchical porous dual-mode thermal management fabrics achieved by regulating solar and body radiations. MATERIALS HORIZONS 2024; 11:1760-1768. [PMID: 38305088 DOI: 10.1039/d3mh01938a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Personal thermal management (PTM) of fabrics is vital for human health; the ever-changing location of the human body poses a big challenge for fabrics to maintain a favorable metabolic temperature. Herein, a dual-mode thermal management fabric is designed to achieve both cooling and heating functions by regulating simultaneously solar and body radiations. The cooling or heating mode can be exchanged by flipping the fabric without an external energy supply. The passive cooling side consists of an electrospun polyacrylonitrile (PAN) fabric with a hierarchical porous structure, exhibiting high sunlight reflectance (91.42%) and an ∼14 °C temperature decrease under direct sunlight irradiation. The co-existence of nanoscale and microscale pores is proven to be essential for improved cooling performances. The other heating side, coated with an MXene layer, shows high photothermal conversion efficiency (37.5%) and outstanding heating capability outdoors. Furthermore, the contrary mid-infrared emissivity of the two sides (high emissivity of the cooling side while low emissivity of the heating side) leads to the dual-mode passive regulation of body thermal energy. Besides, this fabric demonstrates satisfactory wearability and excellent stability. Our work proposes an energy-saving and cost-effective approach for PTM fabrics potentially suitable for various scenarios (e.g., indoors/outdoors, summer/winter, low/high latitude areas).
Collapse
Affiliation(s)
- Chuntao Lan
- CAS Center for Excellent in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China.
| | - Jia Meng
- CAS Center for Excellent in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China.
| | - Chongxiang Pan
- CAS Center for Excellent in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China.
| | - Luyao Jia
- CAS Center for Excellent in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China.
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiong Pu
- CAS Center for Excellent in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China.
- School of Nanoscience and Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
6
|
Geng A, Han Y, Cao J, Cai C. Strong double networked hybrid cellulosic foam for passive cooling. Int J Biol Macromol 2024; 264:130676. [PMID: 38453107 DOI: 10.1016/j.ijbiomac.2024.130676] [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: 12/18/2023] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
Up to now, energy conservation, emission reduction, and environmental protection are still the goals that humanity continuously pursues. Passive radiative cooling is a zero-consumption cooling technology, which gains more and more attention. However, the contraction between mechanical strength and cooling performance of traditional radiative cooling materials still limits their scalable production. In this work, we developed a strong double-networked hybrid cellulosic foam via crosslinking recyclable CNF and PVA with a silane coupling agent in the freeze-drying process. Meanwhile, nano zinc oxide and MOF were added to improve the mechanical and solar scattering of foam. Benefiting from the synergistic solar scattering of ZnO and MOF and the stable double crosslinking network, the as-prepared hybrid cellulosic foam exhibits high solar reflectivity of 0.965, high IR emissivity of 0.94, ultrahigh mechanical strength of and low thermal conductivity. Based on above results, the hybrid cellulosic foam shows high-performance daytime cooling efficiency of 7.5 °C under direct sunlight in the hot region (Nanjing, China), which can serve as outdoor thermal-regulation materials. This work demonstrates that biomass materials possess the enormous potential of in thermal regulating materials, and also provides great possibilities for their applications in energy conservation, environmental protection and green building materials.
Collapse
Affiliation(s)
- Aobo Geng
- Research Institute of Wood Industry, Chinese Academy of Forestry, Key Laboratory of Wood Science and Technology, National Forestry and Grassland Administration, Beijing 100091, China.
| | - Yanming Han
- Research Institute of Wood Industry, Chinese Academy of Forestry, Key Laboratory of Wood Science and Technology, National Forestry and Grassland Administration, Beijing 100091, China
| | - Jingyun Cao
- Research Institute of Wood Industry, Chinese Academy of Forestry, Key Laboratory of Wood Science and Technology, National Forestry and Grassland Administration, Beijing 100091, China
| | - Chenyang Cai
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China.
| |
Collapse
|
7
|
Cheng H, Newton MAA, Rajib M, Zhang Q, Gao W, Lu Z, Zheng Y, Dai Z, Zhu J. A ZIF-8-encapsulated interpenetrated hydrogel/nanofiber composite patch for chronic wound treatment. J Mater Chem B 2024; 12:2042-2053. [PMID: 38315081 DOI: 10.1039/d3tb02683c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Designing wound dressings necessitates the crucial considerations of maintaining a moist environment and implementing effective bacterial control. Furthermore, developing a three-dimensional framework emulating the extracellular matrix (ECM) confers advantages in fostering cellular migration and proliferation. Inspired by this, hydrogel/nanofiber composites have been demonstrated as promising materials for wound dressings. The composites also overcome the disadvantages of poor mechanical properties and rapid release of traditional pure hydrogels. In this study, we constructed a calcium alginate hydrogel/polylactic acid nanofiber (CAH/PLANF) composite with an interpenetrated network. Additionally, the synthesis of zeolitic imidazolate framework-8 (ZIF-8) incorporated into the composite system endowed the system with enhanced mechanical properties and photodynamic antibacterial attributes. The obtained composite patch (ZIF-8@CAH/PLANF) exhibited excellent swelling, strong mechanical properties, low cytotoxicity, and durable photodynamic antibacterial effect with an antibacterial efficacy of higher than 99.99%. Finally, bacterial infection and wound healing properties were investigated in vivo, and the ZIF-8@CAH/PLANF patch was proven to have the ability to fight infection and accelerate wound healing.
Collapse
Affiliation(s)
- Hongju Cheng
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Md All Amin Newton
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Mia Rajib
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Qinchen Zhang
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Weihong Gao
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Zan Lu
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Yuansheng Zheng
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Zijian Dai
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China.
| | - Jie Zhu
- School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China.
| |
Collapse
|
8
|
Li L, Liu G, Zhang Q, Zhao H, Shi R, Wang C, Li Z, Zhou B, Zhang Y. Porous Structure of Polymer Films Optimized by Rationally Tuning Phase Separation for Passive All-Day Radiative Cooling. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6504-6512. [PMID: 38267401 DOI: 10.1021/acsami.3c19173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Passive all-day radiative cooling (PARC) films with porous structures prepared via nonsolvent-induced phase separation (NIPS) have attracted considerable attention owing to their cost-effectiveness and wide applicability. The PARC performances of the films correlate with their porous structures. However, the porous structure formed using the NIPS process cannot be finely regulated. In this study, we prepared polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) films with porous structures optimized by rationally tuning the phase separation, which was achieved by adjusting the proportions of two good solvents with varying solubility parameters. The optimized PVDF-HFP film with a hierarchically porous structure exhibited a high solar reflectance of 97.7% and an infrared emissivity of 96.7%. The film with excellent durability achieved an average subambient cooling temperature of approximately 5.4 °C under a solar irradiance of 945 W·m-2 as well as a temperature of 11.2 °C at nighttime, thus demonstrating all-day radiative cooling. The results indicate that the proposed films present a promising platform for large-scale applications in green building cooling and achieving carbon neutrality.
Collapse
Affiliation(s)
- Linhu Li
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| | - Guimin Liu
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| | - Qing Zhang
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| | - Haichao Zhao
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| | - Ruidong Shi
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| | - Changlin Wang
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| | - Zihao Li
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| | - Boyi Zhou
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| | - Yong Zhang
- Department of Equipment Maintenance and Remanufacturing Engineering, Academy of Army Armored Forces, Beijing 100072, China
| |
Collapse
|
9
|
Gu B, Xu Q, Wang H, Pan H, Zhao D. A Hierarchically Nanofibrous Self-Cleaning Textile for Efficient Personal Thermal Management in Severe Hot and Cold Environments. ACS NANO 2023; 17:18308-18317. [PMID: 37703206 DOI: 10.1021/acsnano.3c05460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Climate change has recently caused more and more severe temperatures, inducing a growing demand for personal thermal management at outdoors. However, designing textiles that can achieve personal thermoregulation without energy consumption in severely hot and cold environments remains a huge challenge. Herein, a hierarchically nanofibrous (HNF) textile with improved thermal insulation and radiative thermal management functions is fabricated for efficient personal thermal management in severe temperatures. The textile consists of a radiative cooling layer, an intermediate thermal insulation layer, and a radiative heating layer, wherein the porous lignocellulose aerogel membrane (LCAM) as intermediate layer has low thermal conductivity (0.0366 W·m-1·K-1), ensuring less heat loss in cold weather and blocking external heat in hot weather. The introduction of polydimethylsiloxane (PDMS) increases the thermal emissivity (90.4%) of the radiative cooling layer in the atmospheric window and also endows it with a perfect self-cleaning performance. Solar absorptivity (80.1%) of the radiative heating layer is dramatically increased by adding only 0.05 wt% of carbon nanotubes (CNTs) into polyacrylonitrile. An outdoor test demonstrates that the HNF textile can achieve a temperature drop of 7.2 °C compared with white cotton in a hot environment and can be as high as 12.2 °C warmer than black cotton in a cold environment. In addition, the HNF textile possesses excellent moisture permeability, breathability, and directional perspiration performances, making it promising for personal thermal management in severely hot and cold environments.
Collapse
Affiliation(s)
- Bin Gu
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Qihao Xu
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Hongkui Wang
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Haodan Pan
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Dongliang Zhao
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
- Institute of Science and Technology for Carbon Neutrality, Southeast University, Nanjing, Jiangsu 210096, China
- Engineering Research Center of Building Equipment, Energy, and Environment, Ministry of Education, Nanjing, Jiangsu 210096, China
| |
Collapse
|