The Experts below are selected from a list of 106545 Experts worldwide ranked by ideXlab platform
Zhen-lin Guo - One of the best experts on this subject based on the ideXlab platform.
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melt electrospun reduced tungsten oxide polylactic acid fiber membranes as a photothermal material for light driven interfacial Water Evaporation
ACS Applied Materials & Interfaces, 2018Co-Authors: Tolesa Fita Chala, Min-hui Chou, Zhen-lin GuoAbstract:The development of efficient photothermal materials is the most important issue in solar Water Evaporation. In this work, melt electrospun reduced tungsten oxide/polylactic acid (WO2.72/PLA) fiber membranes were successfully prepared with improved near-infrared (NIR) photothermal conversion properties owing to strong NIR photoabsorption by the metal oxide. WO2.72 powder nanoparticles were incorporated into PLA matrix by melt processing, following which the composites were extruded into wires using a single screw extruder. Subsequently, fiber membranes were prepared from the extruded wire of the WO2.72/PLA composite by melt electrospinning, which is a cost-effective technique that can produce fiber membranes without the addition of environmentally unfriendly chemicals. The melt electrospun WO2.72/PLA fiber membranes, floatable on Water due to surface hydrophobicity, were systematically designed for, and applied to, vapor generation based on the interfacial concept of solar heating. With the photothermal WO2.72/PLA fiber membrane containing 7 wt % WO2.72 nanoparticles, the Water Evaporation efficiency was reached 81.39%, which is higher than that for the pure PLA fiber membrane and bulk Water. Thus, this work contributes to the development of novel photothermal fiber membranes in order to enhance light-driven Water Evaporation performance for potential applications in the fields of Water treatment and desalination.
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Melt Electrospun Reduced Tungsten Oxide /Polylactic Acid Fiber Membranes as a Photothermal Material for Light-Driven Interfacial Water Evaporation
2018Co-Authors: Tolesa Fita Chala, Min-hui Chou, Zhen-lin GuoAbstract:The development of efficient photothermal materials is the most important issue in solar Water Evaporation. In this work, melt electrospun reduced tungsten oxide/polylactic acid (WO2.72/PLA) fiber membranes were successfully prepared with improved near-infrared (NIR) photothermal conversion properties owing to strong NIR photoabsorption by the metal oxide. WO2.72 powder nanoparticles were incorporated into PLA matrix by melt processing, following which the composites were extruded into wires using a single screw extruder. Subsequently, fiber membranes were prepared from the extruded wire of the WO2.72/PLA composite by melt electrospinning, which is a cost-effective technique that can produce fiber membranes without the addition of environmentally unfriendly chemicals. The melt electrospun WO2.72/PLA fiber membranes, floatable on Water due to surface hydrophobicity, were systematically designed for, and applied to, vapor generation based on the interfacial concept of solar heating. With the photothermal WO2.72/PLA fiber membrane containing 7 wt % WO2.72 nanoparticles, the Water Evaporation efficiency was reached 81.39%, which is higher than that for the pure PLA fiber membrane and bulk Water. Thus, this work contributes to the development of novel photothermal fiber membranes in order to enhance light-driven Water Evaporation performance for potential applications in the fields of Water treatment and desalination
Peng Wang - One of the best experts on this subject based on the ideXlab platform.
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Multi-functional 3D honeycomb ceramic plate for clean Water production by heterogeneous photo-Fenton reaction and solar-driven Water Evaporation
Nano Energy, 2019Co-Authors: Le Shi, Yusuf Shi, Yara Aldrees, Sara Aleid, Chenlin Zhang, Sifei Zhuo, Peng WangAbstract:Abstract The application of solar-driven Water Evaporation process in clean Water production via solar distillation is recently intensively investigated. The phase change and mass transfer processes during the solar-driven Water Evaporation process can directly leave behind the salts, heavy metals, organic dyes, etc and simultaneously produce the clean Water vapor. However, if the Water source is contaminated by volatile organic compounds (VOCs), solar-driven Water Evaporation may accelerate VOCs volatile and enrich them in the condensate. In this work, the enrichment of VOCs in distillate Water was first demonstrated and a multi-functional honeycomb ceramic plate was fabricated by coating a layer of CuFeMnO4 on the surface of a cordierite honeycomb ceramic substrate. The honeycomb structure was beneficial for light trapping and energy recycling and thus to improve the solar-to-Water Evaporation efficiency. The CuFeMnO4 coating layer acted as both the photothermal material for solar-driven Water Evaporation process and the catalyst for VOCs removal via heterogeneous photon-Fenton reaction. With the integration of photo-Fenton reaction into the solar distillation process, the clean distillate Water was produced with efficient removal of the potential VOCs from the contaminated Water sources.
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emerging investigator series the rise of nano enabled photothermal materials for Water Evaporation and clean Water production by sunlight
Environmental science. Nano, 2018Co-Authors: Peng WangAbstract:Solar driven Water Evaporation and distillation is an ancient technology, but has been rejuvenated by nano-enabled photothermal materials in the past 4 years. The nano-enabled state-of-the-art photothermal materials are able to harvest a full solar spectrum and convert it to heat with extremely high efficiency. Moreover, photothermal structures with heat loss management have evolved in parallel. These together have led to the steadily and significantly improved energy efficiency of solar Evaporation and distillation in the past 4 years. Some unprecedented clean Water production rates have been reported in small-scale and fully solar-driven devices. This frontier presents a timely and systematic review of the impressive developments in photothermal nanomaterial discovery, selection, optimization, and photothermal structural designs along with their applications especially in clean Water production. The current challenges and future perspectives are provided. This article helps inspire more research efforts from environmental nano communities to push forward practical solar-driven clean Water production.
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rational design of a bi layered reduced graphene oxide film on polystyrene foam for solar driven interfacial Water Evaporation
Journal of Materials Chemistry, 2017Co-Authors: Yuchao Wang, Lianbin Zhang, Peng WangAbstract:Solar-driven Water Evaporation has been emerging as a highly efficient way for utilizing solar energy for clean Water production and wasteWater treatment. Here we rationally designed and fabricated a bi-layered photothermal membrane with a porous film of reduced graphene oxide (rGO) on the top and polystyrene (PS) foam at the bottom. The top porous rGO layer acts as a light absorber to harvest and convert light efficiently to thermal energy and the bottom PS layer, which purposefully disintegrates Water transport channels, acts as an excellent thermal barrier to minimize heat transfer to the nonevaporative bulk Water. The optimized bi-layered membrane was able to produce Water Evaporation rate as high as 1.31 kg m−2 h−1 with light to Evaporation conversion efficiency as high as 83%, which makes it a promising photothermal material in the literature. Furthermore, the experiments and theoretical simulation were both conducted to examine the relationship between the overall energy efficiency and the depth of the photothermal material underWater and the experimental and simulations results coincided with each other. Therefore, this work provides systematic evidence in support of the concept of the interfacial heating and shines important light on practical applications of solar-driven processes for clean Water production.
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self floating carbon nanotube membrane on macroporous silica substrate for highly efficient solar driven interfacial Water Evaporation
ACS Sustainable Chemistry & Engineering, 2016Co-Authors: Yuchao Wang, Lianbin Zhang, Peng WangAbstract:Given the emerging energy and Water challenges facing mankind, solar-driven Water Evaporation has been gaining renewed research attention from both academia and industry as an energy-efficient means of wasteWater treatment and clean Water production. In this project, a bilayered material, consisting of a top self-floating hydrophobic CNT membrane and a bottom hydrophilic macroporous silica substrate, was logically designed and fabricated for highly energy-efficient solar-driven Water Evaporation based on the concept of interfacial heating. The top thin CNT membrane with excellent light adsorption capability acted as photothermal component, which harvested and converted almost the entire incident light to heat for exclusive heating of interfacial Water. On the other hand, the macroporous silica substrate provided multifunctions toward further improvement of operation stability and Water Evaporation performance of the material, including Water pumping, mechanical support, and heat barriers. The silica subst...
Tolesa Fita Chala - One of the best experts on this subject based on the ideXlab platform.
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melt electrospun reduced tungsten oxide polylactic acid fiber membranes as a photothermal material for light driven interfacial Water Evaporation
ACS Applied Materials & Interfaces, 2018Co-Authors: Tolesa Fita Chala, Min-hui Chou, Zhen-lin GuoAbstract:The development of efficient photothermal materials is the most important issue in solar Water Evaporation. In this work, melt electrospun reduced tungsten oxide/polylactic acid (WO2.72/PLA) fiber membranes were successfully prepared with improved near-infrared (NIR) photothermal conversion properties owing to strong NIR photoabsorption by the metal oxide. WO2.72 powder nanoparticles were incorporated into PLA matrix by melt processing, following which the composites were extruded into wires using a single screw extruder. Subsequently, fiber membranes were prepared from the extruded wire of the WO2.72/PLA composite by melt electrospinning, which is a cost-effective technique that can produce fiber membranes without the addition of environmentally unfriendly chemicals. The melt electrospun WO2.72/PLA fiber membranes, floatable on Water due to surface hydrophobicity, were systematically designed for, and applied to, vapor generation based on the interfacial concept of solar heating. With the photothermal WO2.72/PLA fiber membrane containing 7 wt % WO2.72 nanoparticles, the Water Evaporation efficiency was reached 81.39%, which is higher than that for the pure PLA fiber membrane and bulk Water. Thus, this work contributes to the development of novel photothermal fiber membranes in order to enhance light-driven Water Evaporation performance for potential applications in the fields of Water treatment and desalination.
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Melt Electrospun Reduced Tungsten Oxide /Polylactic Acid Fiber Membranes as a Photothermal Material for Light-Driven Interfacial Water Evaporation
2018Co-Authors: Tolesa Fita Chala, Min-hui Chou, Zhen-lin GuoAbstract:The development of efficient photothermal materials is the most important issue in solar Water Evaporation. In this work, melt electrospun reduced tungsten oxide/polylactic acid (WO2.72/PLA) fiber membranes were successfully prepared with improved near-infrared (NIR) photothermal conversion properties owing to strong NIR photoabsorption by the metal oxide. WO2.72 powder nanoparticles were incorporated into PLA matrix by melt processing, following which the composites were extruded into wires using a single screw extruder. Subsequently, fiber membranes were prepared from the extruded wire of the WO2.72/PLA composite by melt electrospinning, which is a cost-effective technique that can produce fiber membranes without the addition of environmentally unfriendly chemicals. The melt electrospun WO2.72/PLA fiber membranes, floatable on Water due to surface hydrophobicity, were systematically designed for, and applied to, vapor generation based on the interfacial concept of solar heating. With the photothermal WO2.72/PLA fiber membrane containing 7 wt % WO2.72 nanoparticles, the Water Evaporation efficiency was reached 81.39%, which is higher than that for the pure PLA fiber membrane and bulk Water. Thus, this work contributes to the development of novel photothermal fiber membranes in order to enhance light-driven Water Evaporation performance for potential applications in the fields of Water treatment and desalination
Min-hui Chou - One of the best experts on this subject based on the ideXlab platform.
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melt electrospun reduced tungsten oxide polylactic acid fiber membranes as a photothermal material for light driven interfacial Water Evaporation
ACS Applied Materials & Interfaces, 2018Co-Authors: Tolesa Fita Chala, Min-hui Chou, Zhen-lin GuoAbstract:The development of efficient photothermal materials is the most important issue in solar Water Evaporation. In this work, melt electrospun reduced tungsten oxide/polylactic acid (WO2.72/PLA) fiber membranes were successfully prepared with improved near-infrared (NIR) photothermal conversion properties owing to strong NIR photoabsorption by the metal oxide. WO2.72 powder nanoparticles were incorporated into PLA matrix by melt processing, following which the composites were extruded into wires using a single screw extruder. Subsequently, fiber membranes were prepared from the extruded wire of the WO2.72/PLA composite by melt electrospinning, which is a cost-effective technique that can produce fiber membranes without the addition of environmentally unfriendly chemicals. The melt electrospun WO2.72/PLA fiber membranes, floatable on Water due to surface hydrophobicity, were systematically designed for, and applied to, vapor generation based on the interfacial concept of solar heating. With the photothermal WO2.72/PLA fiber membrane containing 7 wt % WO2.72 nanoparticles, the Water Evaporation efficiency was reached 81.39%, which is higher than that for the pure PLA fiber membrane and bulk Water. Thus, this work contributes to the development of novel photothermal fiber membranes in order to enhance light-driven Water Evaporation performance for potential applications in the fields of Water treatment and desalination.
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Melt Electrospun Reduced Tungsten Oxide /Polylactic Acid Fiber Membranes as a Photothermal Material for Light-Driven Interfacial Water Evaporation
2018Co-Authors: Tolesa Fita Chala, Min-hui Chou, Zhen-lin GuoAbstract:The development of efficient photothermal materials is the most important issue in solar Water Evaporation. In this work, melt electrospun reduced tungsten oxide/polylactic acid (WO2.72/PLA) fiber membranes were successfully prepared with improved near-infrared (NIR) photothermal conversion properties owing to strong NIR photoabsorption by the metal oxide. WO2.72 powder nanoparticles were incorporated into PLA matrix by melt processing, following which the composites were extruded into wires using a single screw extruder. Subsequently, fiber membranes were prepared from the extruded wire of the WO2.72/PLA composite by melt electrospinning, which is a cost-effective technique that can produce fiber membranes without the addition of environmentally unfriendly chemicals. The melt electrospun WO2.72/PLA fiber membranes, floatable on Water due to surface hydrophobicity, were systematically designed for, and applied to, vapor generation based on the interfacial concept of solar heating. With the photothermal WO2.72/PLA fiber membrane containing 7 wt % WO2.72 nanoparticles, the Water Evaporation efficiency was reached 81.39%, which is higher than that for the pure PLA fiber membrane and bulk Water. Thus, this work contributes to the development of novel photothermal fiber membranes in order to enhance light-driven Water Evaporation performance for potential applications in the fields of Water treatment and desalination
Petri Murto - One of the best experts on this subject based on the ideXlab platform.
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high performance semitransparent polymer solar cells floating on Water rational analysis of power generation Water Evaporation and algal growth
Nano Energy, 2020Co-Authors: Nan Zhang, Tong Jiang, Lifang Qiao, Cui Guo, Luqi Yin, Petri MurtoAbstract:Abstract Compared to conventional ground-mounted photovoltaic (PV) cells, floating photovoltaic (FPV) cells open new opportunities for scaling-up solar power generation, especially in highly populated countries that may have competing uses for the available land. Large-scale FPV projects normally deploy old-fashioned crystalline silicon panels that are brittle and difficult to integrate. Polymer solar cells (PSCs) are regarded as a newer and more versatile concept that make quite a splash today. High absorption coefficients, thin active layers and tunable absorption spectra through a synergy of molecular and device engineering promote extensive research on the integration of semitransparent polymer solar cells (ST-PSCs) with smart architecture to deliver both practical and aesthetic benefits. In this work, we propose a new concept of extending ST-PSCs to the field of FPV cells and explore the potential of regulating aquatic environments and organisms. Three groups of high-performance ST-PSCs are fabricated. Maximum efficiency of 13% and average visible transmittance over 20% deliver an optimum trade-off between power generation and transparency among the best-performing ST-PSCs. We develop new experimental approaches and propose a feasibility study on the Water Evaporation and algal growth by placing the large-area ST-PSCs on bodies of Water. To the best of our knowledge, we demonstrate for the first time that the specific transmittance windows with controlled light intensities generated by the ST-PSCs are capable of regulating Water Evaporation and algal growth, which provides insight into responsible scale-up of FPVs instead of simply blocking the sunlight. The new functions of ST-PSCs pave an intriguing prospect of developing ST-PSCs for practical FPV applications in the near future.
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high performance semitransparent polymer solar cells floating on Water rational analysis of power generation Water Evaporation and algal growth
Nano Energy, 2020Co-Authors: Nan Zhang, Tong Jiang, Lifang Qiao, Qing Ji, Liangmin Yu, Petri Murto, Xiaofeng XuAbstract:Abstract Compared to conventional ground-mounted photovoltaic (PV) cells, floating photovoltaic (FPV) cells open new opportunities for scaling-up solar power generation, especially in highly populated countries that may have competing uses for the available land. Large-scale FPV projects normally deploy old-fashioned crystalline silicon panels that are brittle and difficult to integrate. Polymer solar cells (PSCs) are regarded as a newer and more versatile concept that make quite a splash nowadays. High absorption coefficients, thin active layers and tunable absorption spectra through a synergy of molecular and device engineering promote extensive research on integrating semitransparent polymer solar cells (ST-PSCs) with smart architecture to deliver both practical and aesthetic benefits. In this work, we propose a new concept of extending ST-PSCs to the field of FPV cells and explore the potential of regulating aquatic environments and organisms. Three groups of high-performance ST-PSCs are fabricated. Maximum efficiency of 13% and average visible transmittance over 20% deliver an optimum trade-off between power generation and transparency among the best-performing ST-PSCs. We develop new experimental approaches and propose a feasibility study on the Water Evaporation and algal growth by placing the large-area ST-PSCs on bodies of Water. To the best of our knowledge, we demonstrate for the first time that the specific transmittance windows with controlled light intensities generated by the ST-PSCs are capable of regulating Water Evaporation and algal growth, which provides insight into responsible scale-up of FPVs instead of simply blocking the sunlight. The new functions of ST-PSCs pave an intriguing prospect of developing ST-PSCs for practical FPV applications in the near future.
