Applied Materials Today
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2021
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IF 10.041
Yue Hu,Zhou Fang,Xu Ma,Xinyi Wan,Shilin Wang,Shuaikang Fan,Zhizhen Ye,Xinsheng Peng
Harvesting water from atmosphere is emerging as a potential strategy to solve the problem of water scarcity. In this work, CaCl 2 encapsulated Fe-ferrocene MOFs hollow microspheres (CaCl 2 @Fe-Fc-HCPs) were successfully fabricated. CaCl 2 plays as water sorbent and Fe-Fc-HCPs act as photothermal components for rapidly water release. In CaCl 2 @Fe-Fc-HCPs composites, the dissolving CaCl 2 in the adsorbed water are effectively prevented, while the water adsorption capacity of the encapsulated CaCl 2 is improved. The amount of water adsorbed by CaCl 2 @Fe-Fc-HCPs (80% RH, 15 °C) is 2.685 g H2O /g CaCl2 , 2.23 times as that adsorbed by pristine CaCl 2 powder. Furthermore, the hollow structure Fe-Fc-HCPs MOFs favorable for loading CaCl 2 nanoparticles and facilitating mass transport. The adsorbed water can be easily released by a simulated solar light (one sun) due to the high efficient photothermal property of Fe-Fc-HCPs. The performance shows no degradation after 5 cycles, indicating its nice stability. This may provide a promising and cost-effective way to harvest water from air only powered by natural sunlight and offer new insights to combine photothermal MOFs with traditional adsorbents to design high-efficiency water generators.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Haolun Li,Mingxin Lyu,Yanhua Lai,Xingxing Cheng,Zhen Dong
Spinel oxides are widely used to enhance photoanodes’ photoelectrochemical (PEC) water oxidation performance. In this paper, we demonstrate that a p-type photothermal MnCo2O4 layer, inserted between BiVO4 and FeOOH cocatalysts, can significantly enhance PEC performance. On the one hand, the charge recombination is greatly suppressed since p-type MnCo2O4 can form a p–n heterojunction with n-type BiVO4. On the other hand, upon near-infrared (NIR) light irradiation, the deposited MnCo2O4 shows excellent photothermal conversion performance that can further facilitate charge transfer and accelerate the water oxidation process by elevating the operating temperature. In addition, the FeOOH cocatalyst is introduced to fully utilize the holes reaching the surface and further enhance the surface oxygen evolution kinetics. Consequently, the carefully constructed BiVO4/MnCo2O4/FeOOH photoanode shows excellent photocurrent (4.71 mA cm–2) at 1.23 V vs RHE (VRHE) and superior applied bias photon-to-current efficiency (1.62%) at 0.6 VRHE. The photocurrent density maintains more than 90% of the initial photocurrent after 4 h of combined solar and NIR light irradiation. Enhancing the PEC catalytic activity of photoelectrodes using photothermal materials is a simple and effective strategy, which can be used to explore PEC activity enhancement in other photoelectrodes.
研究领域:
材料科学
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能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2021
·
IF 17.881
Nannan Wang,Yange Feng,Youbin Zheng,Feng Zhou,Daoai Wang
The tribocharges generated by the friction of the polymer material are temporarily stored on the interface, which allows the triboelectric nanogenerators (TENGs) to generate electrical output or produce electrostatic discharge on the polymer surface . Therefore, tribocharge regulation on the material surface is of considerable significance to improve the electrical output of TENGs or design new anti-static materials. A new method with universal applicability to control the triboelectrification of interface by photothermal materials is proposed in this study. In this method, the near-infrared (NIR) irradiation will cause the thermo electron emission of Fe 3 O 4 , thereby changing the charge amount on the PDMS surface. Results show that the surface potential of Fe 3 O 4 @PDMS is reduced by 76.8% after NIR excitation when the PDMS surface is positively charged. In addition, the surface potential increases by 42.9% when the surface of Fe 3 O 4 is negatively charged, showing the opposite trend. Moreover, the friction coefficient of the polymer can be adjusted by modifying the surface triboelectricity to change its motion state. This strategy has many interesting applications, such as reducing the friction resistance of skis by reducing the surface charges or increasing the friction resistance by raising the charges on the surface of a car tire, thereby reducing the gliding distance during emergency braking.
研究领域:
材料科学
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纳米技术
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物理学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Penglin Lu,Shangru Cheng,Shanshan Guan
Solar-driven interface evaporation has emerged as an attractive technology for addressing the pressing issue of water scarcity. Herein, from the perspective of utilizing and managing ocean resources, we have developed a comprehensive evaporator based on ocean biomass for efficient solar-driven interfacial evaporation, aiming to sustainably harness marine resources. The construction of a biomass-based evaporator was achieved using three-dimensional melanin nanoparticles (MNPs)@carboxymethyl chitosan (CMCS)/polydimethylsiloxane (PDMS) porous sponge, which exhibits highly hydrophilic and porous properties. In this study, MNPs functioned as the photothermal material and the CMCS-hydrophilic modified PDMS sponge was utilized as the supportive material. Owing to its outstanding photothermal conversion capability and ingeniously designed columnar shape with cold evaporation surface, the MCP sponge-based evaporator achieves a water evaporation rate of 2.04 kg·m −2 ·h −1 and an evaporation efficiency of 85% under 1sun illumination. In addition, the MCP sponge-based evaporator exhibits an outstanding desalination performance (93% salt rejection) and purification efficiency for dyes with natural sunlight. This groundbreaking study presents an innovative method by utilizing marine biomass-derived CMCS and MNPs as raw materials to construct a high-performance solar-driven interface evaporator, thereby tackling clean water generation and promoting the sustainability of marine ecosystems.
研究领域:
材料科学
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环境科学
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可持续发展
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Jiyan Li,Min Qiao,Shuo Gao,Tao Zhou,Rui Jiao,Fei Wang,Hanxue Sun,An Li
Solar-driven interfacial evaporation (SDIE) has shown great potential for seawater desalination and wastewater treatment. In this context, we report the development of a composite aerogel material, termed BCAM, which is synthesized from bacterial cellulose, agar powder, and glutaraldehyde, with the addition of MXene as a photothermal material. The two active aldehyde groups (-CHO) of glutaraldehyde undergo a condensation reaction with the hydroxyl groups (-OH) in bacterial cellulose and agar powder, promoting crosslinking between the molecular chains and forming a composite material with directional channel structures. This material exhibits a rich porous structure, excellent mechanical properties, and superhydrophilic characteristics, and is shaped using a gradient cooling method. The incorporation of MXene enhances the light absorption of BCAM (up to 95.6 %), resulting in an evaporation rate of 1.78 kg·m −2 ·h −1 , while the evaporation rate of 3D BCAM reaches 3.43 kg·m −2 ·h −1 . After seawater desalination, BCAM achieved a removal efficiency of over 99 % for major ions in seawater. Furthermore, in practical industrial wastewater, the evaporation rate of the 3D BCAM evaporator reaches 2.8 kg·m −2 ·h −1 , and BCAM maintains its structural integrity after being immersed for 24 h under various acidic conditions (pH:1–5). Overall, these findings demonstrate the substantial practical application potential of BCAM in SDIE technologies.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Shichong Guo,Limei Dong,Junfeng Li,Zhenzong Lu,Yanshuo Li,Mutai Bao,Yiming Li
Crude oil spills in marine ecosystems have been a global environmental problem. Photothermal oil-adsorbing materials have shown enormous potential in cleaning up viscous crude oil spills, yet challenging to achieve efficient adsorption under insufficient light. Herein, a simple Pickering emulsion route was used to encapsulate phase change materials (PCMs) in photothermal cellulose-based aerogels (Pa@SCCA) for efficiently utilizing solar energy and remediating viscous crude oil spills. Pa@SCCA demonstrates excellent shape stability, thermal stability and importantly it shows outstanding hydrophobicity and compressibility due to methyltrimethoxysilane (MTMS) modification, thus enabling it to selectively adsorb and recover viscous crude oil. Carbon nanotubes (CNTs) was doped in the Pa@SCCA to allow the efficient conversion from solar energy to heat, and PCMs with thermal-storage ability can continuously reduce the viscosity of crude oil even under insufficient light by releasing thermal energy. Significantly, the preheated Pa@SCCA can remove viscous crude oil spills from cryogenic seawater (10 ℃) without light assistance. The introduction of PCMs improves overall solar energy utilization efficiency and the adsorption capacity for viscous crude oil under unstable light. The coupling of photothermal porous materials with PCMs offers significant advantages over conventional photothermal adsorbents.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
TRENDS IN BIOTECHNOLOGY
·
2025
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IF 14.9
Shangsong Li,Luxuan Li,Zhengyu Tao,Song Lin,Xin Huang
Cleaner, lower carbon energy is needed for more sustainable development. Algal production of hydrogen directly from water and sunlight is a promising route toward such sustainable energy. However, algae can only produce hydrogen continuously in weak light. We developed a hybrid system using a designed thermosensitive material, poly( N -isopropylacrylamide)- co -poly(butyl acrylate) (PNIPAM-BA), and a photothermal material, graphene oxide (GO), to dynamically sense light intensity. This system regulates the entry of incident light to protect the activity of algal hydrogenase, which enables algae to efficiently produce hydrogen through photosynthesis across a range of light intensities (100–2000 μmol photons·m –2 ·s –1 ). Even under the standard maximum solar intensity of 2000 μmol photons·m –2 ·s –1 , we achieved continuous hydrogen production over 25 days with an average hydrogen production rate of 17.53 μmol H 2 (mg chlorophyll) –1 h –1 . Thus, this study addresses the challenge of continuous hydrogen production by algae under high light intensity, greatly advancing prospects for large-scale outdoor hydrogen production.
研究领域:
植物学
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可再生能源
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生物工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Advances
·
2021
·Vol. 2
·期 9
·3088-3098
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IF 0
Jia-Yun Wang,Xiao-Xiao Guo,Jun Chen,Shi-Chang Hou,Hui-Juan Li,Abdul Haleem,Sheng-Qi Chen,Wei-Dong He
Photothermal water evaporation, benefiting from solar energy, is one hot topic concerning seawater desalination, sewage treatment, and water recovery. Commonly, the photothermal evaporation system consists of photothermal material supported by certain matrices with fundamental necessities. Poly(acrylic acid) (PAAc) cryogels, prepared at the temperature below the freezing point of polymerization mixture, are hierarchically macro-porous and highly hydrophilic with rapid water uptake, speedy water transport, and low thermal conductivity. Moreover, PAAc has the acid-doping ability for polyaniline and polypyrrole (PPy), which faciliates the good incorporation of photothermal materials in a cryogel matrix. Thus, the PAAc cryogel is an excellent platform for photothermal water evaporation. In this research, we prepared PAAc cryogels, incorporated different photothermal materials, and constructed the modular water evaporation systems. The photothermal evaporation rate of pure water with the PAAc-PPy cryogel system reached as high as 1.819 kg m−2 h−1 while its apparent efficiency surprisingly exceeded 100%. These modular systems exhibited excellent long-term and recyclable utility. As for the photothermal evaporation of salty water, the precipitated salt solid could be spontaneously dissolved during the light turnoff due to the quick water transport, maintaining the high water-to-vapor conversion. This study represents an ideal matrix platform, PAAc cryogel, for photothermal evaporation and opens up a new route to improve the photothermal evaporation technique for water purification and seawater desalination.
研究领域:
材料科学
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环境科学
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能源研究
✓ 已验证
产品关联
DOI
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2020
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IF 6.984
Fang Liu,Weidong Liang,Chengjun Wang,Jingxian He,Chaohu Xiao,Zhaoqi Zhu,Hanxue Sun,An Li
Solar-driven water evaporation is emerging as a promising strategy to utilize solar energy for the desalination and water purification . In this work, two kinds of monoliths based on hypercrosslinked polymers (HCPs) nanotubes , which were synthesized using inexpensive and conventional chemicals, i.e. benzene and methylbenzene as building blocks via Friedel-Crafts reaction, have been created as photothermal materials through a superhydrophilic modification followed by the coating of polypyrrole as light absorption layer . The as-synthesized HCPs possess large specific surface area (up to 773 m 2 g -1 ) and low apparent density (0.011 g cm -3 ), which endow them very low thermal conductivity (0.029 W m -1 k -1 ). After modification with sodium alginate and polypyrrole, the resulting HCPs (named as PPy-M-HCPs) show surface superhydrophilicity (water contact angle ~0°), stronger light absorption (ca. 95%) and better mechanical properties . Taking advantages of these unique physicochemical properties mentioned above, the PPy-M-HCPs exhibit outstanding light-to-heat conversion performance with a high solar conversion efficiency of ca. 87% achieved under 1 kW m -2 irradiation. In addition, the PPy-M-HCPs also show excellent salt-resistant performance, e.g. a high energy conversion efficiency of more than 85% obtained in 20 wt% NaCl solution, due to their loosely porous structure coupling with their superhydrophilic wettability . Based on the merits of simple fabrication process, excellent stability and high solar conversion efficiency, the PPy-M-HCPs may have great potentials as efficient photothermal materials for real applications.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2022
·Vol. 15
·期 3
·929
·
IF 3.748
Yawei Yang,Yan Han,Jianqiu Zhao,Wenxiu Que
Solar vapor generation through evaporation using photothermal materials is a promising candidate for seawater desalination. The Ti3C2MXene membrane has exhibited photothermal behavior in solar water evaporation. However, dense packed two-dimensional (2D) MXene membrane with high reflection loss and insufficient vapor escape channels limited its solar evaporation performance. In this work, one-dimensional (1D) multi-walled carbon nanotubes (MWCNT) were added into 2D Ti3C2nanosheets as the holder to form a 2D/1D hybrid photothermal membrane. Owing to the 2D/1D hybrid structure, more effective broadband solar absorption, water transportation and vapor escape were achieved.
研究领域:
材料科学
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能源工程
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环境科学
✓ 已验证
DOI
高影响因子
TEXTILE RESEARCH JOURNAL
·
2024
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IF 1.6
Jiugang Li,Mengzhe Bao,Xinpeng Jin,Wenlu Zhang,JiaHao He,Chong He,Wenbin Li
Fiber-based photothermal materials for seawater desalination usage have garnered significant attention owing to their outstanding properties. However, traditional monolayer fabrics are prone to possess inherent inefficiencies such as high thermal dissipation and salt crystallization within the evaporation zone, especially reducing the evaporation efficiency during the long-term seawater desalination. Herein, a novel three-layered three-dimensional (3D) spacer carbon/polyester cotton spacer woven fabric (SWF) evaporator is designed. This SWF material was delineated into three distinct layers: an upper evaporate layer, a foundational water absorption layer, and a central water dedicated to water transition, thermal insulation, and salt crystallization. The rational three-layered 3D architecture guarantees the swift aqueous transition within SWF evaporator, simultaneously curtailing thermal losses from the top layer. The evaporation rate of 3D SWF, with 6 mm interval space, registered at 1.6721 kg · m−2·h−1 under a solar intensity of 1 kW · m−2. Furthermore, under conditions with a solar power of 1 kW · m−2 and a wind velocity of 2 m · s−1, the evaporation efficiency of liquid water from SWF, with a central layer height of 12 mm, culminated at 3.9742 kg · m−2·h−1, which validated its adeptness for the seawater desalination applications. The results of our research are helping to provide for efficient and stable methods of wastewater treatment, desalination, and drinking water collection.
研究领域:
材料科学
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环境科学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 21
·16257-16265
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IF 4.6
Guangyao Zhang,Deqi Fan,Zongze Li,Yingying Li,Yi Lu
Solar-driven interfacial evaporation has emerged as a sustainable solution to address global freshwater scarcity by converting solar energy into thermal energy for efficient water purification. To achieve rapid and energy-efficient steam generation, the development of advanced photothermal materials with optimized light absorption and water activation remains critical. Here, we present a three-dimensional polyvinyl alcohol/chitosan/Nb2C MXene (PCN) hydrogel engineered for high-performance solar evaporation. The composite integrates Nb2C MXene nanosheets into a hydrophilic polymer matrix through hydrogen bonding and electrostatic interactions, forming interconnected microchannels that enable broadband solar absorption (93% across 300–2500 nm) via MXene's plasmonic effects and light-trapping architecture. The synergistic combination of rapid water transport and weakened hydrogen bonding within the hydrated network significantly reduces the evaporation enthalpy to 1426 J g−1. This design achieves an exceptional evaporation rate of 2.72 kg m−2 h−1 and a solar-to-vapor conversion efficiency of 93.2% under 1 sun irradiation, surpassing conventional hydrophilic polymer-based systems. The hydrogel's hierarchical porous structure facilitates effective thermal localization and sustains stable evaporation across varying solar intensities (1–5 sun), demonstrating adaptability for scalable applications. This work provides a rational strategy to design MXene-enhanced hydrogels for practical solar desalination and wastewater purification technologies.
研究领域:
材料科学
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能源技术
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）