MICROCHEMICAL JOURNAL
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2020
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IF 3.594
Qing Shan,Yong Liu,Xinlei Zhang,Jinfa Shao,Daqian Hei,Yongsheng Ling,Wenbao Jia
In this work, the biological enrichment of TiO 2 nanoparticles (NPs) by Salvinia natans was studied, and the EDXRF technology was used to evaluate the ability of Salvinia natans to enrich TiO 2 NPs. At the same time, with the accumulation of TiO 2 Nps in Salvinia natans, the changes of nutrient elements (P, S, Ca, Fe, and Zn) in its leaves and root tissues of Salvinia natans were observed simultaneously. The experimental results indicate that the Salvinia natans showed a strong potential to enrich the TiO 2 NPs. It had accumulated about 14.9 mg/g and 2.2 mg/g of titanium in roots and leaves when they were cultured in the highest TiO 2 NPs concentration (20 mg/L) to saturation. By calculating the bioconcentration factors (BCF), the enrichment ability of TiO 2 NPs in S. natans was evaluated. It was found that the enrichment effect of Salvinia natans on TiO 2 NPs showed negative correlation with the culture concentration. As to nutrient elements, the contents of P, S, and Ca in the roots and leaves were significantly increased with the increase of Ti enrichment. It might mean that the TiO 2 NPs have a positive effect on the growth and development of Salvinia natans. Besides, the reduction of Fe might indicate that the absorption of TiO 2 NPs affects the bioaccumulation of metal ions in Salvinia natans.
研究领域:
环境科学
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植物学
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DOI
高影响因子
LAB ON A CHIP
·
2025
·
IF 5.4
Jinlong Xu,Yongjian Li,Haosheng Chen
Mass transfer in conventional microchannels primarily relies on wall-mediated diffusion or is compromised by dynamic instability at free interfaces, which limits interphase transport efficiency. Inspired by the hierarchical trichomes of Salvinia molesta leaves, we designed composite architectures featuring spatially selective hydrophilic modification via in situ polydopamine (PDA) grafting, which enhance mass transfer while maintaining interface stability in microchannels. High-speed imaging was used to capture the dynamic evolution of interfacial morphology, revealing failure behaviours consistent with theoretical analysis. Cyclic pressure loading experiments confirmed that the modified architecture exhibited strong interfacial pinning, increasing the stable operating pressure range by over 20% and doubling the tolerable disturbance frequency. By establishing mass transfer models, we demonstrated that this robust stability enabled efficient gas-liquid mass transfer and verified its potential for liquid-liquid extraction applications, especially under dynamic pulsatile flow conditions, where the mass transfer efficiency was improved by more than 15% compared to static conditions. This work presents an interfacial engineering strategy that combines structural design with surface wettability control, with broad potential in biological and chemical separation, gas–liquid reactions, and multiphase microfluidics.
研究领域:
微流体学
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化学工程
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材料科学
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仿生学
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界面科学
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产品关联
DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2024
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IF 8.2
Guanglong Chen,Ting Pan,Dandan Gao,Hongping Liao,Jun Wang
Micro- and nanoplastics (MNPs) and polychlorinated biphenyls (PCBs) are prevalent in the environment and pose potential threats to ecosystems. However, studies on the phytotoxicity of MNPs and PCBs on primary producers are limited. This study investigated the effects of polystyrene nanoplastics (PS-NPs, 10 mg/L) and 2,2′,5,5′-tetrachlorobiphenyl (PCB-52, 0.1 mg/L), on the growth of Spirodela polyrhiza and Salvinia natans , and their impact on plant competitive ability under co-culture conditions. Laser confocal microscopy images revealed that PS-NPs accumulated on the leaf and root surfaces of both species. Combined exposure to PS-NPs and PCB-52 significantly inhibited the average specific and relative growth rates (RGR) of both species, reduced chlorophyll a and b levels, and slightly increased carotenoid content, disrupting the photosynthetic system. PCB-52 exacerbated PS-NPs accumulation on plants, leading to increased hydrogen peroxide (H 2 O 2 ) and superoxide anion (O 2 − ) production in both roots and leaves. This affects the activity of superoxide dismutase (SOD), peroxidase (POD), malondialdehyde (MDA), and the soluble protein content. The combined treatment with PS-NPs and PCB-52 induced greater ecological stress in both species than the treatment with PS-NPs alone. In addition, the combined treatment with PS-NPs and PCB-52 significantly improved the relative yield and competition balance index of S. polyrhiza , indicating that PS-NPs + PCB-52 enhanced the competitive ability of S. polyrhiza when co-cultured with S. natans . This study confirmed the effects of co-exposure to PS-NPs and PCB-52 on aquatic plant growth and species competition, contributing to better insight into the ecological impacts of MNPs and organic pollutants.
研究领域:
环境科学
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生态学
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植物生物学
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2020
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IF 3.99
Kai Zhou,Dianming Li,Peihong Xue,Pei Wang,Yong Zhao,Meihua Jin
Superhydrophobic surfaces with either low or high adhesion have great significance in numerous engineering domains. Salvinia, a common aquatic plant which has hydrophobic micro hair with a hydrophilic tip on the top, is a nature superhydrophobic surface with high adhesion. Here, inspired by salvinia, a superhydrophobic surface with high adhesion is fabricated by simple polymerization of dopamine (DA) onto nanotips of micro/nanostructured superhydrophobic surface. When the rough superhydrophobic surface is immersed in the DA solution, air is trapped in valley between the micro/nanostructures and discontinuous three-phase contact line (TCL) forms immediately. The polydopamine (PDA) adhesion only occurs on very tips of the micro/nanostructures, while the other ravine part of the micro/nanostructures remained hydrophobic, what endows the superhydrophobic surface numerous hydrophilic tiny tips like the hairs of salvinia leaf. The salvinia-like surface showed superhydrophobic but high adhesive property. This work unfolds more applicabilities of superhydrophobic surface and promotes the application of the superhydrophobic surface.
研究领域:
材料科学
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仿生学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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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
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Zhengyan Chen,Runzhuo Xue,Hongtao Chen,Xueyan Zhao,Zhengzheng Guo,Yanling Jin,Fang Ren,Penggang Ren
The low-cost and high-efficiency porous activated carbon materials as adsorbents have attracted extensive attention to solving the increasing problems of water pollution. Aquatic plant Salvinia adnata (SA) derived porous carbon is a promising candidate as an adsorbent due to its wide distribution and low cost, and well-developed porous structure with abundant pores after activation. In this paper, a series of porous Salvinia adnata activated carbons (SAACs) were successfully synthesized via a facile two-step method with carbonization and KOH activation varying different activated temperatures and KOH addition ratios. The morphology and structure of the SAACs were characterized using various analytical and spectroscopic techniques. The prepared SAAC-1000–3 (activated temperature is 1000 °C, mass ratio of SA and KOH is 1:3) exhibits a well-developed hierarchical porous structure with a large specific surface area of 2583 m 2 g −1 and pore volume of 2.17 cm 3 g −1 , which facilitates the diffusion and adsorption of dye molecular into SAAC. The batch adsorption experiments were applied to systematically evaluate the adsorption properties for organic dyes with different contact time, initial concentration, temperature, pH, and co-existing ion concentration. The adsorption performance results show that SAAC-1000–3 demonstrates a fast adsorption process for the complete adsorption of methylene blue (MB) and methyl orange (MO) within 3 min, moreover, it also displays a remarkable maximum adsorption capacity of 643.63 mg g −1 at higher MB concentration of 500 mg L −1 . Furthermore, an ultrahigh removal efficiency of 99.9% for MB after nine adsorption-desorption cycles indicates the good reusability of SAAC. The Salvinia adnata activated carbon can be as an alternative adsorbent for the fast and high-efficiency treatment of dye-containing wastewater. This work also provides a new idea for waste utilization of water plants.
研究领域:
环境科学
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材料科学
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植物学
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 5
·123914
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IF 7.5
Le Peng,Zuozhu Yin,Xiangyu Han,Yongcun Ma,Jian Jiang,Zhen Hong,Chan Xie,Yidan Luo,Mingshan Xue
With the rapid advancement of aviation technology, aircraft engines operate under increasingly stringent conditions, while fuel contamination by microplastics, water, and organic pollutants severely compromises operational reliability. Inspired by the hydrophobic surface of Salvinia leaves, a multifunctional nonwoven filter element (NFE) was developed for aero-engine fuel tank protection. Fabricated via melt processing of polypropylene(PP)/ polyethylene terephthalate(PET) nonwoven substrates followed by spray-coating and thermal curing of an Ni-Al-LDH@MIL-125/MWCNTs/PU/1H, 1 H, 2 H, 2H-perfluoroalkyltriethoxysilanes (POTS) composite, the NFE exhibits prominent superhydrophobicity (water contact angle > 150°) and oleophilicity. It maintains robust stability under harsh service conditions (pressure, vibration, pH 2–12 environments, and UV aging) with water contact angles consistently exceeding 150°. Integrating multiple core functionalities, the NFE achieves a maximum microplastic adsorption capacity of 0.4934 g·g −1 , 95.47% methylene blue degradation within 1 h, and high-performance oil-water separation (permeation flux: 4893.2 L·m −2 ·h −1 ); separation efficiency: > 98.65%). Notably, it retains > 99.15% separation efficiency after 10 cyclic tests and efficiently separates surfactant-stabilized emulsions. This sustainable and scalable multifunctional NFE offers a comprehensive solution for aviation fuel purification, holding significant potential to enhance engine reliability and extend service life.
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DOI
高影响因子
ENVIRONMENTAL POLLUTION
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2021
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IF 8.071
Hongwei Yu,Jianfeng Peng,Xiaofeng Cao,Yajun Wang,Zhiqiang Zhang,Yan Xu,Weixiao Qi
Glyphosate and microplastics are widely found in marine, terrestrial, and freshwater environments due to their globally widespread application. Further, they have proved to have specific ecotoxicity effects on aquatic plants. However, few studies have focused on the effects of small plastic particles and glyphosate, or especially, their combined effect on vascular plants in freshwater ecosystems . This study aimed to conduct a simulated greenhouse experiment to investigate the ecotoxicity of polystyrene microplastics and glyphosate on the floating plant Salvinia cucullata by exposure to fluorescent polystyrene microplastics (1 μm; concentration, 3, 15, and 75 mg/L), glyphosate (5, 25, and 50 mg/L), and a mixture of the two (3 + 5, 15 + 25, and 75 + 50 mg/L) for seven days. Glyphosate significantly reduced the relative growth rate, photosynthetic capacity, and root activity of S. cucullata . Polystyrene microplastics did not significantly influence photosynthesis or leaf morphological characteristics but they significantly reduced relative growth rate and root activity in S. cucullata , indicating that the effects of microplastics on aquatic plants are potentially associated with different organs exposed to pollution. Polystyrene microplastics and glyphosate activated the plant antioxidant defense systems by increasing antioxidative enzyme activities including, superoxide dismutase, ascorbate peroxidase, and catalase to cope with oxidative stress . Synergistic effects (only observed in percent leaf yellowing) were observed when S. cucullata was exposed to a high concentrations (≥15 + 25 mg/L) of glyphosate and microplastics. Our results indicate that pervasive microplastics and herbicide contamination in freshwater may potentially affect the growth of aquatic plants.
研究领域:
生态毒理学
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环境科学
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植物生理学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiangyu Han,Zuozhu Yin,Yingping Yang,Haitao Yang,Jilin Xu,Zhen Hong,Chan Xie,Yidan Luo,Mingshan Xue
Existing aero-engine filters are susceptible to clogging by water, oil, microplastics and other contaminants under complex operating conditions, resulting in reduced filtration efficiency and shorter maintenance intervals. Therefore, there is an urgent need to develop a multifunctional superhydrophobic material that can efficiently separate oil and water and adsorb pollutants. Based on this, we prepared a multifunctional superhydrophobic nonwoven fabric made of ethylene-propylene side by side (ES) fiber, polyethylene terephthalate (PET) fiber, multi-walled carbon nanotubes (MWCNTs) and Mg Fe layered double hydroxide (Mg Fe LDH). This multifunctional fiber-based nonwoven fabric imitates the rough structure of the surface of salvinia natans through bionic design, which shows excellent hydrophobic performance, and the water contact angle can be as high as 160 ± 2°. At an ambient temperature of 70 °C, the oil-water separation efficiency can reach 98.8 % by thermal radiation. The oil-water separation efficiency was 98 % when the material was irradiated by halogen lamps simulating infrared light, and 97 % at ambient temperature without any light. Compared with the modified polyurethane sponge widely used for oil-water separation, the super hydrophobic multi-functional non-woven fabric has three advantages. Firstly, modified polyurethane sponge only performs a single function: oil-water separation, while superhydrophobic multifunctional non-woven fabric can achieve synergistic effects of photothermal oil-water separation, organic pollutant degradation, and microplastic extraction. In addition, the mechanical and chemical stability of superhydrophobic multifunctional non-woven fabric is stronger, which means that it has greater potential for application in aircraft engines under harsh working conditions. Finally, the preparation of multifunctional non-woven fabrics is very simple and has the potential for large-scale production.
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DOI
高影响因子
危险品化学品经营许可证（带存储）