SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Long Cheng,Chengping Li,Xingqiao Wu,Ziyi Wang,Liuting Zhang,Wei Kong,Liang Wang,Petr Senin,Arkadii Proskurin,Ting Bian
As a promising and sustainable way for freshwater production, interfacial solar vapor generation technology often encounters harsh conditions such as fluctuating illumination, high salinity, bacterial growth, and acid/alkali corrosion, which can reduce its conversion efficiency and lifespan. Here, to address these challenges, an environmentally adaptive hierarchical structure incorporating plasmonic Ag nanoparticles, MoS 2 nanoflowers, and polydopamine (PDA) (MoS 2 @PDA/Ag) within a hybrid hydrogel matrix was designed as the functional solar evaporator. By systematically adjusting the volume ratio of cellulose nanofibers (CNF) and polyvinyl alcohol (PVA) skeletons, high evaporation efficiencies can be achieved in hypersaline conditions. Further, the cooperation of multi-photothermal materials endows the evaporator with a broad light absorption spectrum, superior photothermal conversion efficiency, and strong antimicrobial capabilities. The evaporator demonstrates a high evaporation rate of 2.79 kg m -2 h −1 under 1 sun irradiation and maintains sustainable evaporation for 8 h without salt deposition in 20 % NaCl solution. After being immersed in an acidic and alkaline seawater environment for 30 days, the evaporator shows no change in appearance, with only a slight decrease in performance. This work presents a promising platform for the development of solar evaporators with practical applications in various environmental conditions.
研究领域:
材料科学
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环境科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2023
·
IF 11.1
Xin Zhong,Yuming Wu,Pu Zhang,Yibing Chen,Yongshuang Cai,Weiming Wang,Xue Min,Jun Xiong,Ming Li
Interfacial solar steam production (ISSP) is an attractive technique for extracting freshwater from seawater. However, significant efforts have been focused on designing solar evaporators with delicate structures to achieve excellent evaporation rates and steady desalination performance, which result in sophisticated processes and high costs that inhibit their practical application. Here, a cost-effective turnover polypyrrole decorated cotton fabric (PPy-CF) based solar evaporator was designed by sewing two identical pieces of PPy-CF photothermal material to the top and bottom of polyethylene foam (PF). The polyester fiber pillar (PFP) inserted into the PF incorporates vertical water-transporting channels to pump water into the PPy-CF efficiently. The heat dissipation of the PPy-CF was minimized by adjusting the number of PFP. The appropriate water supplied by the PFP water transporter enables the PPy-CF-based solar evaporator to attain an excellent evaporation rate of 1.56 kg m −2 h −1 and a remarkable photothermal efficiency of 90.45% under 1-solar intensity. Notably, the sufficient water provided by the PFP water transporter allows the PPy-CF-based solar evaporator to achieve a steady desalination performance of 8 h, and the evaporation rate maintains around 1.31 kg m −2 h −1 . Moreover, this solar evaporator can be self-cleaning by turning it over. Outdoor cycle experiments demonstrated that a 1 m 2 PPy-CF-based solar evaporator could produce approximately 6 kg of freshwater within 10 h. Designing a 1 m 2 this turnover solar evaporator costs about 1 dollar. The cost-effectiveness, simplicity in design, self-cleaning ability, and steady desalination performance make the turnover PPy-CF-based solar evaporator a promising solution to alleviate freshwater shortages.
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
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
·
2022
·Vol. 46
·期 11
·15043-15053
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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
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 14
·6220-6236
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IF 4.5
Qu Mengnan,Yan Jufeng,Ge Jianwei,Zhao Yue,Xue Yuyu,Liu Xiaofeng,Liu Hui,Yan Min,He Jinmei
Interfacial solar evaporation technology is considered as one of the most promising green ways to solve the problems of freshwater scarcity and sewage treatment. Herein, we prepared a low-cost, easy-to-fabricate, and excellent performance polyaniline (PANI)-wood solar evaporator using a simple surface self-assembly technique. The evaporator achieves an evaporation rate of 1.66 kg m −2 h −1 under 1 sun and a photothermal conversion efficiency of 86.9%. In the process of seawater desalination, the purification rate of four ions in seawater reaches at least 99%. And water purified by evaporator meets the drinking water standard of the World Health Organization (WHO). In the experiment of evaporating organic dye aqueous solution, the light transmittance of the purified water is similar to that of deionized water. These performances are higher than those of most reported wood-based solar evaporators. Therefore, the efficient solar evaporation system has great potential in addressing desalination and water purification. Graphical abstract
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
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2024
·
IF 6.3
Xisheng Sun,Xiaohua Jia,Hengkang Weng,Jin Yang,Sizhe Wang,Haojie Song
Solar-driven interfacial evaporation (SIE) has been receiving more and more attention on the stage called “Sustainable Development”. However, pursuing a rational coexistence of steady-state evaporation, endogenous resource recovery, and water decontamination in solar evaporators is still a great challenge. To address this problem, a one-dimensional water transport pathway chitosan-based multiphase evaporator (OCHE) was fabricated for simultaneous Marangoni-driven salt mitigation and dye adsorption while solar vapor generation. Due to the efficient energy utilization and water supply, OCHE achieves a water evaporation rate of 1.767 kg m −2 h −1 with an energy efficiency of 96.87% under one sun illumination. More importantly, the 1D water pathway induces directional solute capillary convection and thermocapillary convection in evaporator when OCHE is working in high-salinity brine, leading to localized salt harvesting driven by Marangoni-driven liquid transport. Moreover, OCHE exhibits the good adsorption capacity for methylene blue (MB) and methyl orange (MO). This versatile multiphase evaporator provides a new insight into the design of next-generation eco-friendly, salt-resistant, and in-depth water purification solar evaporators.
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
DESALINATION
·
2020
·
IF 7.098
Qingmiao Wang,Feifei Jia,Anhua Huang,Yi Qin,Shaoxian Song,Yanmei Li,Mario Alberto Corona Arroyo
A novel three-dimensional (3D) MoS 2 -based evaporator (MPU-PPU) was constructed for solar desalination in this work. This evaporator provided a typical design of double layer structure (DLS): the top layer which was formed via embedding nanoscale MoS 2 onto frameworks of 3D porous polyurethane (PU) sponge, played the role of solar absorbing and photothermal conversion , while the bottom layer which was originated from PU sponge with the hydrophilic PDA coating, functioned as the thermal insulation layer and water pump. With low cost, facile construction pathway and good mechanical flexibility, the MPU-PPU evaporator simultaneously exhibited high evaporation efficiency of 85% under a low illumination of 1.0 kW m −2 and superhigh evaporation efficiencies over 90% under higher solar illumination (1.5–2.5 kW m −2 ), which outperformed many other reported advanced materials for solar desalination . The four factors: (1) high photothermal efficiency, (2) localized heating effect, (3) hydrophilic bottom layer to leverage capillary forces and promote fluid flow to the hot region, together with (4) the porous structure which enabled efficient water supply and vapor channel, mainly accounted for the high-efficiency solar desalination. Besides, the MPU-PPU evaporator exhibited the outstanding desalination efficiency and excellent recyclability , providing great potential in its commercial use for solar desalination.
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
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2021
·
IF 7.267
Linjiang Zhang,Xiaohui Xu,Jie Feng,Bo Bai,Na Hu,Honglun Wang
Solar steam generation as a green and sustainable technology has recently attracted significant interest for relieving the longstanding challenge of clean water resources. However, the large-scale preparation of low cost photothermal materials for solar steam generators is highly desired yet still challenging. Herein, semi-coke (SC), a solid byproduct of coal industrial, was first demonstrated as an efficient photothermal material and successfully applied in solar steam generation system by depositing SC on melamine sponge with the assistance of polydopamine. Then, the modified melamine sponge was functionalized by hydrophobic methyl trichlorosilane to fabricate the self-floating semi-coke/polydopamine@photothermal melamine sponge (SPMS). Based on their outstanding light absorption, good wettability , and effective thermal location, the SPMS performs a high evaporation rate of 1.41 kg m −2 h −1 with a solar thermal conversion efficiency of 90.56% under 1 sun irradiation. Meanwhile, the SPMS has remarkable cycle stability and water purification abilities for seawater , dyeing wastewater and heavy metal solution. By turning “waste” to “wealth”, the SPMS shows great potential for sustainable applications in synergetic solar clean water production.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 9
·期 27
·15482-15492
·
IF 12.732
Yu Chen,Jin Yang,Lin Zhu,Xiaohua Jia,Sizhe Wang,Yong Li,Haojie Song
Solar-driven water evaporation is an effective approach for using solar energy to purify seawater and wastewater. However, the high energy requirements of bulk water evaporation fundamentally restrict the practicality of solar freshwater production. Herein, we demonstrate an efficient hierarchical solar evaporator by combining polydopamine (PDA) and Ti3C2Tx MXene (MX) with a cellulose network skeleton of delignified wood (DW). By integrating activated water in a hydrated cellulose network and the synergistic photothermal effect between PDA and MX, the obtained PDMX@DW evaporator achieved a high evaporation rate of 2.08 kg m−2 h−1 and energy efficiency of 93.6% under 1 sun illumination. Differential scanning calorimetry and dark evaporation experiments indicated that the water in PDMX@DW exhibited a lower vaporization enthalpy (1915 J g−1) than bulk water (2440 J g−1). Raman spectral analysis and density functional theory calculations were used to investigate the structure of water molecules in the cellulose network, and it turns out that high contents of weakly hydrogen-bonded intermediate water were the most likely origin of the reduced vaporization enthalpy. More importantly, due to the interactive cellulose network structure and increased water supply rate, PDMX@DW exhibited excellent salt resistance and long-term stability in high-concentration brine. This work provides an effective method for breaking the evaporation limitation of the traditional wood-based evaporator and improving its salt resistance.
研究领域:
材料科学
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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
Solar RRL
·
2023
·Vol. 7
·期 24
·2300548
·
IF 7.9
Yang Jin,Xiaole Gong,Yujian He,Hen Wang,Shaoxiang Li,Jingquan Liu
Solar steam generation to generate steam through solar light-driven surface evaporation can be an attractive methodology that utilizes green and inexhaustible solar energy to generate water steam and fresh water with superior efficiency. However, some drawbacks of the current photothermal conversion materials such as complicated fabrication process, high cost, and low salt tolerance often heavily restrict their wide applications. Herein, a green and low-cost method is designed and developed for constructing a free-standing, elastic, and highly tough 3D network of carbon nanotubes (CNTs) and MXene through an efficient “egg-box” coordination mechanism in only one step for high-efficiency water evaporation. When the mass ratios of MXene and CNTs are designed at 1:1.5 and cross-linked with sodium alginate and CaCl 2 , the obtained MCS-3 shows the most excellent light absorption and hydrophilicity, leading to the best evaporation rate of 1.644 kg m −2 h −1 , and the highest photothermal conversion efficiency of 96%. Moreover, subject to different harsh environments and durability tests, MCS-3 also shows desired structural stability and evaporation performance. As demonstrated by its extraordinary photothermal evaporation properties, MCS-3 can envision a wide range of commercial applications covering wastewater purification, brine seawater, desalination, etc.
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
RARE METALS
·
2025
·
IF 11
Yang Hui-Ying,Zhao Yu,Huang Ke-Lei,Meng Xiang-Chao
Combining interfacial solar evaporation with a three-phase photocatalytic system can theoretically improve the production efficiency of ammonia. Herein, we designed a simple solar evaporator via in situ growth of TiO 2 onto hydrophilic carbon paper using a fast Joule heating method. This system had porous channels for high water evaporation rates, wide light-responsive wavelength range, effective light absorption, and potentially high catalytic activity. The lattice disorder and oxygen vacancies created by the rapid heating and cooling process could be reaction sites for nitrogen adsorption and activation. The ammonia yield in the three-phase system was up to 360.37 mol·g −1 ·h −1 , which was higher than the two-phase system (17.14 μmol·g −1 ·h −1 ). Additionally, the ammonia yield rate was 73.65 μmol·g −1 ·h −1 in an outdoor test, demonstrating the potential for large-scale solar nitrogen reduction reaction (NRR). As detected, the activation energy for N 2 reduction to NH 3 was reduced to 26.3 kJ·mol −1 , indicating that this process was facilitated by the design of the photothermal–photocatalytic system. Furthermore, density functional theory (DFT) calculations confirmed the roles of oxygen vacancies as active sites in promoting the NRR. This work provided a new approach to applying solar evaporators for the highly efficient ammonia production by the synergistic effects of photothermal and photocatalytic processes. Graphical abstract
研究领域:
化学
·
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）