CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Qiao Li,Dairong Chen,Xiuling Jiao
In recent years, solar-driven interfacial evaporation materials for seawater desalination and wastewater treatment have garnered significant interest. Hydrogels are considered promising candidates due to their high evaporation rates. However, traditional hydrogel-based solar evaporators are limited by the poor salt resistance and deteriorated mechanical properties. This work successfully constructed a Janus PSPH@CP double-layer solar evaporator with excellent comprehensive performance. It consists of a hydrophobic C/PDMS (CP) coating and a hydrophilic PSPH substrate using polyurethane foam (PU) as skeleton, with its pores filled with the SA/PVA hydrogel and hollow SiO 2 micro-spheres. The superhydrophobic carbon-containing upper coating provides robust light absorption capacity (97 %) and effective salt resistance, while the lower PU foam provides the solar evaporator a solid porous framework with excellent mechanical property. The SP hydrogel, which wraps the inner wall of the PU, is used as a water transport medium due to its superhydrophilic network. Finally, the hollow SiO 2 micro-spheres are embedded in the pores to enhance thermal insulation and optimize thermal management. The integration of the hydrogel and hollow SiO 2 microspheres optimized evaporation enthalpy and thermal management, resulting in an evaporation rate as high as 2.72 kg m -2 h −1 . Meanwhile, the asymmetric wetting characteristics of the solar evaporator’s enable strong salt resistance. As a result, an optimal between the evaporation efficiency and salt resistance is obtained in the fabricated PSPH@CP solar evaporator. The efficient water evaporation, excellent salt resistance, straightforward large-area preparation, and low-cost raw materials suggest that the Janus PSPH@CP solar evaporator has broad prospects for practical applications.
研究领域:
材料科学
·
能源技术
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2022
·
IF 11.211
Haoran Li,Shiming Wang,Xinzhi Wang,Xiaojuan Niu,Yan Li
Interfacial photothermal water evaporation technology has shown great potentials in the fields of water resource exploitation and solar energy utilization. The trade-off between rapid evaporation and salt accumulation has been continuously explored in recent years. Herein, a two-stage evaporator (TSE) that synchronously manages the water and heat transportation is introduced. The TSE is designed to improve the evaporation rate by harvesting the dissipated heat including the radiative and convective heat losses on the surface of the solar absorber together with the conductive heat loss to the insulator . The surface temperature of the upper solar absorber is lower than that of a conventional single-stage evaporator (SSE) with a thermal insulator because energy from the upper evaporation surface is partially transferred to the secondary evaporation surface. Importantly, the typical TSE configuration improves the evaporation rate of the traditional SSE from 1.39 to 1.57 kg m −2 h −1 , which excludes the contribution of the ambient energy-assisted heating to evaporation. Importantly, by introducing a unilateral water supply channel, the TSE maintains a high evaporation flux of 1.48 kg m −2 h −1 in saline water with a concentration of up to 20% ( w /w). The synchronous scheme of water and heat management provides an effective way to overcome the contradiction between rapid evaporation and salt accumulation.
研究领域:
能源材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Energy Technology
·
2024
·
IF 3.6
Lingxue Kong,Ye Jia,Ke Zeng,Yuping Wang,Tengdi Zhang,Anmin Liu,Liguo Gao,Tingli Ma
Solar-driven interfacial evaporation is one of the most promising technologies to address global freshwater shortages. Compared with the integrated structure, monolithic system with asymmetric wettability can be used alone to reduce the structural complexity without sacrificing the localized management of heat. Herein, a monolithic structure of Janus Fe 3 O 4 @IF evaporator with asymmetric wettability has been fabricated via a simple in situ hydrothermal method. The low-cost Janus Fe 3 O 4 @IF evaporator can be self-floating with a sizable surface area, high porosity, and low density, which presents excellent light absorption features of 98.1% within a broadband wavelength range of 200–2500 nm. Due to the strong capillarity action and Janus wettability, the evaporation is efficient (1.64 kg m −2 h −1 ) and stable even treating with highly concentrated brine of 20 wt%. This work demonstrates an effective strategy for achieving high-performance solar-driven interfacial evaporation and superior salt rejection capability, which can be potentially utilized in seawater desalination.
研究领域:
材料科学
·
环境科学
·
能源技术
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Xiaoke Li,Jinchi Li,Lie Zou,Mengshan Chen,Hao Wang,Liu Yang,Rui Yang,He Zhang,Yingtang Zhou
Interfacial solar steam generation (ISSG) has emerged as a promising and eco-friendly desalination technology for producing fresh water from diverse sources, offering a sustainable solution to global water scarcity. However, practical applications face a significant bottleneck: as the evaporation surface area increases, the evaporation rate decreases, limiting large-scale implementation. In this study, a hydrogel evaporator with a donut-shaped structure is developed using 3D-printed molds to address this issue by enhancing thermal convection and reducing evaporation dead zones. Simulations reveal that optimized structural designs improve heat distribution and air convection, leading to a significant improvement in evaporation performance. Experimental results further confirm an impressive evaporation rate of 3.47 kg m −2 h −1 , representing a 66% improvement compared to conventional designs. This work highlights the potential of structural design in hydrogel evaporators to optimize thermal management and enhance evaporation efficiency. By achieving higher evaporation rates while minimizing material usage, this approach provides a scalable strategy for efficient solar desalination.
研究领域:
材料科学
·
环境科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2024
·
IF 10.7
Rongtai Yu,Jianchao Xie,Fangfen Jin,Weiwei Lu,Mingzhu Jin,Xinyang He,Ashok K. Nanjundan,Chengzhong Yu,Xiaodan Huang
Solar-driven interfacial evaporation systems hold great potential for addressing clean water scarcity and wastewater purification challenges. However, low water yield and the presence of contaminants in wastewater remain significant obstacles. This study introduces wide light-absorbing hydrophilic aminophenol–formaldehyde (APF) resin particles with π-conjugated and π-stacked benzenoid–quinoid donor–acceptor couples as light absorbers to enhance solar-to-vapor conversion efficiency. The incorporation of hydrophilic amine groups led to a 30% increase in the evaporation rate and a 32% reduction in the evaporation enthalpy. The carbonized APF-based evaporator achieved a high evaporation rate of 2.89 kg m−2 h−1 and 3.07 kg m−2 h−1 from sewage and simulated seawater, respectively, under natural solar irradiance (0.7 suns). Furthermore, solar vapor generation rates reached 16.22 kg m−2 h−1 and 13.98 kg m−2 h−1 from sewage and simulated seawater under 3.9 suns. The APF-based evaporator also demonstrated exceptional stability and durability in solar-to-vapor conversion.
研究领域:
材料科学
·
环境科学
·
能源研究
✓ 已验证
产品关联
DOI
高影响因子
ENERGY
·
2017
·
IF 4.52
Haoran Li,Yurong He,Ziyu Liu,Baocheng Jiang,Yimin Huang
Harvesting solar energy for steam generation has been widely applied in processes, such as sterilization, water purification , sea water desalination , and electricity generation . It has been found that a nanoparticle-modified membrane (NPM) can directly convert incoming solar energy into thermal energy in a short time period. In this work, broadband core–shell Ag@TiO 2 nanoparticles (NPs) having significant larger absorbance were synthesized. Flexible membranes using the deposition of the synthesized NPs were fabricated and floated on the surface of water to enhance the water evaporation. The effects of the density of deposited NPs and the solar irradiance on the evaporation performance were systematically investigated. Results showed that under 5 sun (1 sun = 1 kW/m 2 ) irradiation, the NPM obtained the highest evaporation capacity together with a considerable evaporation efficiency (52.7%) for NPs deposition of 1.0 g/m 2 . In addition, an evaporative efficiency of up to 68.6% was attained under the solar irradiance of 1 sun. On the other hand, most of the heat lost was transferred into the bulk water and gave rise to the enhancement of sensible heat energy, which can be further used in a volumetric absorption type solar collector.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
·
2022
·Vol. 46
·期 11
·15043-15053
·
IF 4.672
Ming Li,Zhenning Zhang,Fan Yang,Weiming Wang,Shuai Peng,Xixian Yang,Jun Xiong,Xue Min
Summary Interface solar evaporator has been recognized as a potential device for extracting freshwater from non-potable water. Biomass like daikon is an excellent candidate for fabricating solar evaporators because of its good hydrophilia and porous structure, which facilitates water transfer and vapor release. Besides, polymers like polydopamine and polypyrrole (abbreviated as PDA and PPy, respectively) possessing wide spectrum absorption are fascinating candidates for efficient solar evaporators. Herein, PDA-decorated daikon and PPy-decorated daikon (abbreviated as PDA-DK and PPy-DK, respectively) solar evaporators have been developed for vapor production. Due to polyethylene foam can effectively concentrate the heat on the photothermal materials, under 1-solar intensity, the water vaporization rates of PDA-DK and PPy-DK are enhanced to 1.50 and 1.60 kg m −2 h −1 , and the relative solar thermal efficiencies are improved by about 40%, from 49.51% and 58.65% to 89.01% and 98.97%, respectively. Thanks to the super hydrophilicity and high water storage capacity, the PPy-DK has the self-cleaning ability and can effectively desalinate seawater with a desalination rate of around 1.6 kg m −2 h −1 . Moreover, both solar evaporators exhibit considerable stability in evaporation rate, with no significant changes within 15 cycles. Outdoor experiments demonstrate that these two solar evaporators are capable of desalinating saltwater and cleaning dye wastewater.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 12
·6248-6257
·
IF 11.9
Jiaming Sun,Rui Teng,Jia Tan,Mingcong Xu,Chunhui Ma,Wei Li,Shouxin Liu
Optimizing the structural design of solar-powered evaporators is an effective way to improve evaporation performance, but simplifying their design remains challenging. The balance between continuous water supply and thermal conductivity aggravated by hydrophilicity also needs to be solved. This work details an integrated cellulose aerogel based on a hierarchical coordinated control strategy. The Fe3O4-decorated photothermal conversion layer provides a solar radiation absorbance of 97%, while hollow hydrophobic glass bubbles (GBs) anchored in the insulation layer prevent the intrusion of water and provide the aerogel in wet state with a low thermal conductivity of 0.1008 W m−1 K−1. A hydrophilic polyvinyl alcohol/cellulose skeleton ensures uninterrupted water transport while preventing salt accumulation. The synergistic effect obtained by increasing the depinning force at the contact line from GB-anchored heterogeneous vessel walls, adjusting the water states in the hydrophilic skeleton, and confining bulk water in a porous structure greatly reduces the enthalpy of evaporation to 949 J g−1. The integration of all these functions provides a single-module evaporator with a high evaporation rate of 3.17 kg h−1 m−2. The combination of improved thermal management, reduced enthalpy of vaporization and excellent salt resistance provides an effective water purification system with facile fabrication and low cost of maintenance.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zihao Wo,Xiuyue Sun,Haowen Sun,Ni Yang,Xiwen Zhang
Interfacial solar evaporation has drawn widespread attention as a green and sustainable approach toward fresh water scarcity. However, the conflict between high evaporation rate and strong salt resistance has become a fundamental challenge limiting the applications of 3D evaporators. Herein, inspired by Avicennia marina , a rectangular 3D wood evaporator with deliberate device architecture of its water supply paths is developed for simultaneous high-efficiency water evaporation and good salt resistance via non-photothermal interfacial salt accumulation. Owing to the outstanding optical property and water activation ability of photothermal materials, as well as optimized water supply design, the resulting 3D evaporator achieves an impressive evaporation rate of 3.43 kg·m −2 ·h −1 for pure water under 1 sun irradiation. High and stable evaporation performances are also demonstrated for high-concentration brine (3.13 kg·m −2 ·h −1 , 15 wt% for 9 h) and long-term solar desalination (3.33 kg·m −2 ·h −1 , 3.5 wt% for 24 h), without salt accumulation on the evaporation interface. This work provides a contribution to promoting the salt resistance of 3D evaporators via novel water supply design for potential applications.
研究领域:
环境科学
·
材料科学
·
仿生工程
·
能源工程
·
水资源管理
·
可持续技术
✓ 已验证
产品关联
DOI
高影响因子
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
·
2024
·
IF 2.4
Yang Huan,Meng Chaosong,Wei Xiaohui,Xiong Heng,Kong Xiangfeng,Yang Bin,Xu Baoqiang,Dong Zhaowang,He Yuhong
Lead sulfide (PbS) has substantial potential for applications in many fields, such as optical devices and solar cells. Although PbS can be obtained from complex lead-antimony sulfide ores by vacuum distillation, the evaporation mechanism of PbS under vacuum is still unclear. Herein, the evaporation kinetics of PbS at 973 K to 1173 K and 5 to 1000 Pa were investigated using a vacuum thermogravimetric furnace. The practical evaporation rate of PbS was obtained through linear and nonlinear fitting of the experimental data compared with the original theoretical evaporation rate and corrected for the Langmuir maximum evaporation coefficient. The evaporation coefficients and critical pressures of PbS at 973 K, 1023 K, 1073 K, 1123 K, and 1173 K were 0.5225, 0.4056, 0.2080, 0.1995, and 0.1007 as well as 12.49, 16.67, 20.83, 24.19, and 30.15 Pa, respectively. Experimental results indicate that the evaporation rate conforms to the logistic nonlinear model, and the critical pressure is positively correlated with temperature. This paper provides a kinetic data base for PbS vacuum evaporation and also provides a reference for improving the process conditions and production equipment parameters of PbS vacuum distillation. Meanwhile, it improves and develops the theory and practice of vacuum distillation for the preparation of high-purity sulfides and fills the gap of basic kinetic data of nonferrous sulfides.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ENERGY CONVERSION AND MANAGEMENT
·
2017
·
IF 5.589
Lei Shi,Yurong He,Yimin Huang,Baocheng Jiang
Solar power, as an important source of renewable energy during the recent years, holds a great potential to produce vapor. Solar-assisted evaporation systems usually rely on the concentration of nanofluids and the intensity of solar illumination. However, the nanofluids used in these systems can cause secondary pollution. These issues severely limit large-scale application of the solar evaporation technology. In this study, we developed a solar thermal evaporation system based on carbon nanotubes (CNTs) decorated with magnetic Fe 3 O 4 nanoparticles (Fe 3 O 4 @CNT), which could be separated from water under the action of a magnetic force. The two components (with different ratios) of these Fe 3 O 4 @CNT differed in their magnetic and thermal properties. A high evaporation efficiency (60.3%) was obtained with a 0.5 g/L Fe 3 O 4 @CNT nanofluid under a solar illumination power of 10 sun (1 sun = 1 kW·m −2 ), which was achieved by heating the nanofluid locally rather than by increasing the temperature in bulk. A thermal receiver efficiency of 88.7% was obtained with a 0.5 g/L Fe 3 O 4 @CNT nanofluid under a solar illumination power of 1 sun achieved by a bulk temperature increase. The Fe 3 O 4 @CNT nanoparticles could be separated from water at a rate faster than that of the Fe 3 O 4 nanoparticles. The recovery rate of the Fe 3 O 4 nanoparticles and Fe 3 O 4 @CNT ranged from 97.9% to 98.7%. The Fe 3 O 4 nanoparticles in Fe 3 O 4 @CNT enhance their ability to absorb the solar energy, thus making it higher than that of CNTs. The recovery rate and efficiency could be controlled by adjusting the magnetic field strength and the ratio of Fe 3 O 4 and CNTs. Thus, this system study provides an approach to not only significantly reduce the material consumption in the design of solar evaporators, but also to realize broad solar energy applications such as seawater desalination and vapor generation.
研究领域:
材料科学
·
能源工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Mantang He,Hongyu Dai,Huijie Liu,Qirong Cai,Ye Liu,Liming Wang,Xiaohong Qin,Jianyong Yu
Due to the abundance and easy availability of solar energy resources, solar-driven water evaporation provides a sustainable way to obtain clean water from wastewater and seawater. However, achieving a high evaporation rate with excellent light absorption remains a critical challenge in the structural regulation of evaporators. Herein, inspired by the natural transpiration process in plants (blue spruce), we designed a three-dimensional (3D) cone-shaped solar steam generator based on vertical polypyrrole nanowires-coated fabric (VPPyNWs-fabric). The microstructure design of polypyrrole (PPy) increases the solar energy absorption of the incident light through multiple reflections between the VPPyNWs, while the macrostructure design of the 3D evaporator possesses an enlarged surface area for energy harvesting, wide path for water supply, and open structure for vapor diffusion. As a proof of concept, the as-obtained 3D VPPyNWs-fabric-based solar steam generator demonstrates a fast water evaporation rate of 2.32 kg m–2 h–1 with high solar absorption of 97% and solar-to-vapor conversion efficiency of 98.56% at 1 kW m–2 energy density. In addition, the solar steam generator can be steadily applied in various water conditions, e.g., seawater, dye wastewater, and acidic and alkaline wastewater. This high-performance evaporator via 3D macro- and microstructure design offers a new avenue for better utilization of solar energy.
研究领域:
材料科学
·
能源技术
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）