SEPARATION AND PURIFICATION TECHNOLOGY
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2024
·
IF 8.1
Tan Li,Wenbo Sun,Xianzhong Wang,Yan Li,Minggang Lin,Yangyi Chen,Chuyang Zhang,Huan Qi
Solar-powered desalination is considered a promising and sustainable method for producing clean water to alleviate freshwater shortages. However, most solar evaporators have drawbacks such as high costs, complicated processes and lack of durability. Here, we present solar evaporators modified with polyethyleneimine and gallic acid, decorated with carbon black nonwovens, for desalination to produce clean water. The carbon black photothermal nonwovens were produced by treating ES hot air nonwovens with a spray of carbon black solution. Utilizing the light-absorbing heat generation of carbon black and the skin-core structural characteristics of ES(PE/PET) nonwoven, the carbon black is firmly embedded in the PE skin layer of the nonwoven fabric. Subsequently, mussel chemistry inspired the formation of polyethyleneimine and gallic acid coatings on the surface of the carbon black-loaded nonwoven. By combining carbon black with mussel coatings, the photothermal nonwovens demonstrated improved hydrophilicity, excellent photothermal water evaporation performance, and enhanced light conversion efficiency. The modified interfacial evaporator exhibited a high evaporation rate of 1.22 kg m −2 ·h −1 and had high cost-effectiveness of 332.4 g·h −1 ·$ −1 . In addition, reusing, desalination, and outdoor experiments were conducted to showcase the potential of the evaporator for practical desalination. This work demonstrates the significant potential of photothermal ES nonwovens for efficient solar-driven clean water production to tackle global freshwater shortages.
研究领域:
材料科学
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环境科学
·
能源科学
✓ 已验证
DOI
高影响因子
DESALINATION
·
2024
·
IF 8.3
Xushuai Chen,Panpan Zhang,Xi Chen,Chunjia Luo,Min Chao,Luke Yan
Solar interfacial evaporation represents a highly promising approach for generating potable water from seawater utilizing clean, abundant, and sustainable solar energy. MXene-based materials exhibit outstanding photothermal conversion in desalination applications but face challenges in water transport and salt removal. Here, we introduce an effective MXene-charge gradient hydrogel (MCGH) evaporator that leverages the Donnan effect for salt rejection and internal osmotic pressure for water conveyance. The MCGH evaporator achieved 3.1 kg m −2 h −1 evaporation rate in 3.5 wt% NaCl under 1 sun irradiation. It also operates effectively in concentrated brines, reaching a notable 2.1 kg m −2 h −1 evaporation rate in 20 wt% NaCl solutions. This work introduces a new approach for salt-tolerant MXene photothermal evaporators, holding great promise for sustainable solar desalination applications.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Water Process Engineering
·
2025
·
IF 6.7
Yuxiao Ran,Lang Liu,Yanqiong Bao
To address the challenges of salt interference and resource utilization difficulties in seawater desalination processes, there is an increasing demand for efficient separation of NaCl and Na₂SO₄. Inspired by the salt secretion mechanisms of mangrove ecosystems, we developed a cost-effective biomimetic system for salt separation and collection that synergistically integrates photothermal evaporation with ion-sieving processes and crystallization control mechanisms. This novel design achieves simultaneous separation and collection of NaCl at a single interface. The system demonstrates superior separation performance under high-salinity conditions, achieving a remarkable salt crystallization rate of 72 g m −2 h −1 in 20 wt% saline solution with a separation factor of 2.72 at a NaCl/Na₂SO₄ ratio of 3. The system maintained high-efficiency and stable operation during prolonged cycling experiments. By synergistically combining salt separation/collection with interfacial evaporation on a unified platform, this study presents an efficient and sustainable approach for salt fractionation that significantly advances the field of brine resource recovery.
研究领域:
环境科学
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材料科学
·
水处理技术
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2025
·
IF 9.8
Yi Lu,Xiang Wang,Xiaofeng Xu,Pan Wu,Zongze Li,Guangyao Zhang
The increasing global demand for freshwater and clean energy necessitates innovative solutions that address both resource scarcity and environmental challenges. Herein, we present a 2D sandwich-like hybrid membrane, composed of bacterial cellulose (BC) and calcined CoAl-LDH nanosheets (CAL-T), fabricated via a layer-by-layer deposition strategy. This multifunctional membrane synergistically integrates photothermal evaporation and photocatalytic CO 2 reduction, leveraging the porous structure and narrow bandgap (1.37 eV) of CAL-T to enhance solar absorption and energy conversion. Furthermore, the BC matrix facilitates efficient water transport and mechanical stability, ensuring long-term operational performance. Under 1 kW ∙ m −2 solar irradiance, the BC/CAL-650 membrane achieves a water evaporation rate of 1.36 kg ∙ m −2 ∙ h −1 , surpassing most reported 2D evaporators, and a CO evolution rate of 8.78 μmol ∙ g −1 ∙ h −1 , significantly outperforming conventional photocatalysts. Furthermore, the BC matrix facilitates efficient water transport and mechanical robustness, ensuring long-term operational performance. These dual-functional capabilities, coupled with low-cost fabrication (~$0.0041 per membrane), demonstrate the membrane's superiority and practical potential in integrated solar-driven water purification and solar-to-fuel conversion. This work establishes a versatile platform for advancing next-generation hybrid materials to mitigate water scarcity and climate change challenges.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Minjie Hou,Hui Xu,Xu Li
Lightweight and robust foams with multifunctionality are highly desirable to meet the demands of resource conservation and the development of an environmentally friendly society. Here, we demonstrate a sustainable and recyclable composite foam made from abundant resources of kapok cellulose and graphene as raw materials, produced through ionic (Cu 2+ ) crosslinking and directional freezing techniques. The resulting composite foam exhibits a low density of 18.6 mg cm −3 , a high compression modulus of 12.5 MPa, and exceptional thermal insulation performance of 0.02 W m −1 K −1 . An interpenetrating network formed through the chelating effect of Cu 2+ and physical crosslinking within the foam provides excellent wet stability and flame self-extinguishing ability, all while ensuring remarkable recyclability (the Young's modulus retains 96 % of its original foam after five recycling cycles). Additionally, the ice templating enhances the alignment of graphene nanoplatelets, resulting in pronounced anisotropic properties in mechanical strength, thermal conductivity, and electromagnetic shielding. This unique pore structure boosts its potential for use in photothermal water evaporation devices, achieving a water evaporation rate of 1.91 kg·m −2 h −1 and an evaporation efficiency of 80.5 % under 1.0 sun irradiation. This innovative method represents a significant breakthrough in the development of sustainable, high-performance foams, thus broadening their potential applications.
研究领域:
材料科学
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环境科学
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能源技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
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IF 8.3
Yuting Zhang,Yimeng Shi,Dongpu Hu,Sha Liang,Wenbo Yu,Fang Xu,Zhen Hu,Jiakuan Yang,Shushan Yuan,Bart Van der Bruggen
Biomaterial-based solar-driven evaporation has great potential for wastewater treatment and seawater desalination with a high energy conversion and utilization efficiency. However, technology gaps still exist for effectively and directly applying multiscale structures and intrinsic water transport channels of natural materials to enhance high-efficiency photothermal evaporation. In this study, a high-performance biomass-derived photothermal evaporative material was obtained using Salvinia natans, a common aquatic floating plant, together with simple poly(m-phenylenediamine) oxidation modification, building a hybrid biomass evaporator. With advantageous natural features of adequate water transport, microscale–nanoscale hierarchical structures, effective water activation, and antisalt-fouling function, the hybrid biomass evaporator achieves a high evaporation rate of 2.24 kg m–2 h–1 under one sun radiation (1 kW m–2). In addition, modified Salvinia natans also demonstrate certain ability to remove heavy metals during the photothermal evaporation of wastewater. This work offers a new perspective on the synthesis of an environmentally friendly and cost-effective solar-driven evaporator material, which has the advantages of low cost, simple process, and high photothermal conversion efficiency, and can be widely applied to seawater desalination and the treatment of wastewater with high salt concentrations.
研究领域:
材料科学
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环境科学
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生物工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
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2016
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IF 3.289
Ying Liu,Man He,Beibei Chen,Bin Hu
A new method by coupling surfactant assisted dispersive liquid liquid microextraction (SA-DLLME) with electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS) was proposed for the analysis of gold nanoparticles (AuNPs) in environmental water samples. Effective separation of AuNPs from ionic gold species was achieved by using sodium thiosulphate as a complexing agent. Various experimental parameters affecting SA-DLLME of AuNPs, such as the organic solvent, organic solvent volume, pH of the sample, the kind of surfactant, surfactant concentration, vortex time, speed of centrifugation, centrifugation time, and different coating as well as sizes of AuNPs were investigated carefully. Furthermore, the interference of coexisting ions, dissolved organic matter (DOM) and other metal nanoparticles (NPs) were studied. Under the optimal conditions, a detection limit of 2.2 ng L − 1 and an enrichment factor of 152-fold was achieved for AuNPs, and the original morphology of the AuNPs could be maintained during the extraction process. The developed method was successfully applied for the analysis of AuNPs in environmental water samples, including tap water, the East Lake water, and the Yangtze River water, with recoveries in the range of 89.6–102%. Compared with the established methods for metal NPs analysis, the proposed method has the merits of simple and fast operation, low detection limit, high selectivity, good tolerance to the sample matrix and no digestion or dilution required. It provides an efficient quantification methodology for monitoring AuNPs' pollution in the environmental water and evaluating its toxicity.
研究领域:
分析化学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2022
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IF 6.959
Yuanyi Liu,Tianxing Xiang,Bing Zhang,Jize Wang,Xinxin Yu,Yueyue Xiao,Junyan Xiao,Zhiliang Ku,Yong Peng
Current CsPbBr3 perovskite solar cells still suffer from a high open-circuit voltage (Voc) loss due to the high defect density. Herein, we demonstrate a strategy to passivate defects and induce Fermi level modification through BaI2 doping. The carrier lifetime is significantly extended after adding BaI2. In addition, the Fermi level is changed as Ba2+ enters the crystal lattice, which increases the built-in potential and promotes the transport of carriers. As a result, the optimized thermally evaporated device shows a record Voc of 1.551 V and an improved power conversion efficiency of 10.09% as well as excellent thermal stability.
研究领域:
材料科学
·
光伏技术
✓ 已验证
DOI
高影响因子
European Physical Journal-Special Topics
·
2022
·Vol. 231
·期 6
·1215-1219
·
IF 2.891
Li Ruidong,Deng Jinxiang,Chen Liang,Kong Le,Wang Xiaolei,Meng Junhua,Sun Junjie,Zhang Xiaoxia,Zhang Jie,Wang Guisheng,Yang Qianqian,Gao Hongli
In this paper, rubrene:MoO \(_{3}\) mixed films were deposited on quartz glass and p-Si substrates using thermal evaporation technique. We fabricated the devices based on rubrene:MoO \(_{3}\) mixed films in the form of Al/rubrene:MoO \(_{3}\) /p-Si/Al. The electrical characteristics of the rubrene:MoO \(_{3}\) film (with 1:1 weight ratio)-based devices were measured using Hall system. The results indicate the enhanced hole concentration and hole carrier mobility. In addition, the presence of charge transfer complexes leads to an increase of the conductivity and the contact between sample and electrode is almost Ohmic contact. To investigate the effect of MoO \(_{3}\) , the rubrene:MoO \(_{3}\) mixed films with different concentrations of MoO \(_{3}\) were deposited using thermal evaporation technique and the Schottky barrier devices based on rubrene:MoO \(_{3\, }\) mixed films were fabricated. The electrical characteristics demonstrate that the charge transfer complex had been formed when rubrene and MoO \(_{3}\) mixed. Our results demonstrated improvement of the contact between electrode and sample in electronic devices.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
Gels
·
2024
·Vol. 10
·期 4
·279
·
IF 5
Yang Liu,Mingjian Ma,Yuan Shen,Zhengdong Zhao,Xuefei Wang,Jiaqi Wang,Jiangbo Pan,Di Wang,Chengyu Wang,Jian Li
The use of environmentally friendly and non-toxic biomass-based interfacial solar water evaporators has been widely reported as a method for water purification in recent years. However, the poor stability of the water transport layer made from biomass materials and its susceptibility to deformation when exposed to harsh environments limit its practical application. To address this issue, water-driven recovery aerogel (PCS) was prepared by cross-linking epoxy-based polyhedral oligomeric silsesquioxane (EP-POSS) epoxy groups with chitosan (CS) amino groups. The results demonstrate that PCS exhibits excellent water-driven recovery performance, regaining its original volume within a very short time (1.9 s) after strong compression (ε > 80%). Moreover, PCS has a water absorption rate of 2.67 mm s−1and exhibits an excellent water absorption capacity of 22.09 g g−1even after ten cycles of absorption-removal. Furthermore, a photothermal evaporator (PCH) was prepared by loading the top layer with hydrothermally reacted tannins (HAs) and Zn2+complexes. The results indicate that PCH achieves an impressive evaporation rate of 1.89 kg m−2h−1under one sun illumination. Additionally, due to the antimicrobial properties of Zn2+, PCH shows inhibitory effects against Staphylococcus aureus and Escherichia coli, thereby extending the application of solar water evaporators to include antimicrobial purification in natural waters.
研究领域:
材料科学
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环境科学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2016
·
IF 4.732
Shengjie Yuan,Hui Deng,Dongdong Dong,Xiaokun Yang,Keke Qiao,Chao Hu,Huaibing Song,Haisheng Song,Zhubing He,Jiang Tang
Compact thin film of antimony sulfide (Sb 2 S 3 ) as a promising absorber layer was obtained by rapid thermal evaporation (RTE) rather than conventional chemical bath deposition or atomic layer deposition based methods. The systematical characterizations of Sb 2 S 3 film demonstrated the pure phase, void free and high crystallization. The large grain and preferential growth of Sb 2 S 3 thin film were implemented by crystallization and cooling techniques, respectively. The corresponding devices were gradually optimized with a power conversion efficiency of ~3.5%, almost three times of planar devices fabricated by vacuum method. Both the non-oxide buffer layer (CdS layer) and free of hole transport layer enabled the high stability of the non-encapsulated planar devices. The high throughput and reliable RTE fabrication technique , environment-friendly and earth-abundant Sb 2 S 3 materials, stable and superior device performances were expected to drive the research progress of Sb 2 S 3 thin film photovoltaics .
研究领域:
材料科学
·
光伏技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS RESEARCH
·
2016
·Vol. 31
·期 8
·1065-1076
·
IF 1.579
Zhenguang Shen,Zengying Zhao,Jingwen Qian,Zhijian Peng,Xiuli Fu
Tungsten oxide (WO3−x) nanomaterials with controlled morphology and composition were fabricated by thermal evaporation of WO3 and S powders at different temperatures in a vacuum tube furnace. At 850 °C the obtained green particle is still of the same monoclinic WO3 phase as that of the starting powder. At a temperature between 900 and 1100 °C, the resultant dark-blue products are particle-like clusters composed of numerous monoclinic WO2.90 short nanorods, but the clusters became looser and the nanorods grew somewhat longer as the temperature increased. At a temperature between 1150 and 1250 °C, elongated and thoroughly separate purple-red monoclinic W18O49 nanorods were obtained. The growth of the prepared WO3−x nanomaterials was controlled by a gas–solid mechanism. Their photocatalytic degradation on organic contaminants was evaluated by decomposing methylene blue (MB) in aqueous phase under sunlight, in which WO3 particles presented higher photocatalytic activity than its oxygen-deficient counterparts, WO2.90 and W18O49. But the W18O49 nanorods had higher adsorption ability to MB in all the samples.
研究领域:
材料科学
·
纳米技术
·
光催化
✓ 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）