APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Jingying Xu,Xianglong Li,Wanjing Li,Mengyao Zhao,Teng Hou,Jing Zhou,Bin Yang
Complex pollutants in wastewater, such as recalcitrant oils, organic dyes, and antibiotics, have posed significant environmental challenges that adversely affect ecosystems and human health. Herein, we successfully fabricated hierarchical bioinspired polyacrylonitrile (PAN)/Zein/bismuth oxychloride (BiOCl) fibrous membranes featuring ultrafast liquid transport channels and petal-textured energy conversion layers by integrating centrifugal spinning with the in-situ growth of BiOCl nanosheets. The membranes demonstrate an exceptional capability to treat oil/water mixtures and simultaneously remove soluble dyes, thereby offering a viable solution to the issues mentioned above. The strategic construction of liquid channels, coupled with the BiOCl photocatalytic layers, optimized the water transport pathway in the oil/water mixture and facilitated the formation of an effective hydrated anti-fouling layer, achieving a separation flux as high as 6498 L·m −2 ·h −1 . Additionally, the membranes exhibited outstanding pollutant degradation performance, with removal efficiencies of 94.1 % for Rhodamine B and 64.5 % for TC-HCl. This work comes up with new insight for the rational design of multifunctional fibrous membranes, opening a window for the prospect of treating environmental wastewater.
研究领域:
环境科学
·
材料工程
·
化学工程
·
纳米技术
·
污染控制
✓ 已验证
产品关联
DOI
高影响因子
Science Advances
·
2023
·Vol. 9
·期 36
·
IF 13.6
Ziyang Cheng,Chuxin Li,Can Gao,Chengqi Zhang,Lei Jiang,Zhichao Dong
Liquid entrainment with a solid architecture passing through the fluid-fluid interface is ubiquitous and widely used in industrial processes as a liquid transfer method. Besides liquid properties, solid structures play a core role in entrainment. Although the influence of its macroscopic curvatures and microscale roughness has attracted years of research, the effect and potential of the commonly seen millimetric structures have not been sufficiently explored and exploited. Here, we demonstrate enhanced liquid entrainment on the millimetric structured surface by the co-effect of viscosity and capillarity for sustained liquid transfer of small deviation, including high-quantity uptake and practically operational drainage with small and relatively uniform droplet dripping time of varied liquid viscosities. With the overall process of viscous-capillary entrainment, we achieve stable cyclical arrayed liquid transport, showing its potential for sustained liquid transfer in intractable situations in laboratory, industry, and even daily life.
研究领域:
流体力学
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材料科学
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仿生工程
·
微流控技术
·
表面工程
✓ 已验证
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Ruoyu Liu,Yuning Zhou,Ming Gao,Wenwan Shi,Yuting Zhang,Xiaojiang Liu,Zhongze Gu
Unidirectional liquid transport, a special self-propelled wetting phenomenon observed in natural structures like the Nepenthes pitcher plant peristome, Araucaria leaves, and Crassula muscosa shoots, has inspired scientists to develop various novel microfluidic devices for liquid collection, physical/chemical reactions, and irrigation. Recently, the concept of capillary transistors is proposed to enable a programmable transport area and a significant increase in unidirectional capillary height, which is expected to greatly expand the applications of conventional microfluidic chips. In this work, using black resin as the three-dimensional (3D) printing material, we construct microfluidic chips with capillary transistors for photothermal-responsive unidirectional liquid transport. The transistors consist of asymmetric overhanging structures with connected overhangs, allowing for fast, long-distance, and large-area unidirectional liquid transport, with a unidirectional capillary height exceeding 90.0 mm—more than double the values reported in most previous studies. Furthermore, smart control of capillary height is achieved by applying external photothermal stimuli to the capillary transistors, demonstrating their potential applications in photothermal-responsive unidirectional liquid transport and mixing in 3D space. It is envisioned that additional functions such as liquid patterning, desalination, and biochemical microreactions would be developed by engineering capillary transistors and their responsiveness.
研究领域:
微流控技术
·
材料科学
·
生物物理学
·
3D打印
·
光热工程
✓ 已验证
产品关联
DOI
高影响因子
Advanced Healthcare Materials
·
2022
·Vol. 11
·期 14
·2200287
·
IF 11.092
Jianmin Xue,Hongshi Ma,Erhong Song,Fei Han,Tian Li,Meng Zhang,Yufang Zhu,Jianjun Liu,Chengtie Wu
The construction of hierarchical porous structure in biomaterials is of great significance for improving nutrient transport and biological performance. However, it is still challenging to design porous bone substitutes with high strength and biological properties, which limits their clinical applications in load-bearing bone regeneration. Herein, based on hierarchical porous structure of renewable bamboo, the mineralized calcium phosphate/bamboo composite scaffolds with high strength and excellent transport performance are successfully prepared in combination of biotemplated approach and biomimetic mineralization. The mineralized biomaterials have simultaneously achieved high mechanical strength and low modulus, similar to those of cortical bone. Furthermore, the mineralized biomaterials exhibit good liquid transport capacity and can transport cells along anti-gravity direction. Based on density functional theory (DFT) calculations, the mineralized calcium phosphate reveals the optimal H 2 O adsorption energy (−0.651 eV) and low diffusion energy barrier (0.743 eV), which is conducive to enhance hydrophilicity and liquid transport performance. Moreover, owing to the synergistic effect of the porous structure of biotemplate and bioactive mineralized components, the mineralized biomaterials possess enhanced bone integration and osteoconduction properties. The present study shed light on deeper understanding of mineralized biosourced materials, offering a strategy of combining green chemistry with tissue engineering to prepare eco-friendly biomaterials.
研究领域:
材料科学
·
生物材料
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组织工程
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生物力学
·
生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Nano
·
2017
·
IF 13.942
Yi Wu,Shuxue Zhou,Bo You,Limin Wu
Hydro- and oleophobic (namely, omniphobic) coatings or surfaces have many important applications, but tremendous challenges in fabrication aspects still remain. Herein, we report a bioinspired design and nanofabrication of three-dimensional (3D) tribrachia-post arrays with re-entrant geometry (3D TPARG) for superhydrophobic and oleophobic polymer films or surfaces. By simply controlling the temperatures and time to treat silica colloidal templates, we can readily fabricate 3D ordered polymer arrays of tribrachia-posts or hexagonal tribrachia-posts with re-entrant geometries that resemble the skin of a springtail insect after the template is removed. These polymer surfaces exhibit excellent and self-healing superhydrophobicity and oleophobicity even against temperature, acids, alkalis, and mechanical damage. Moreover, their liquid-infused nanostructured surfaces still display very good liquid-sliding ability for water and oils. Our 3D TPARG design strategy may help the development of omniphobic polymer coatings or surfaces for practical applications in self-cleaning surfaces, liquid transport, antifouling materials, and many other important fields.
研究领域:
材料科学
·
表面工程
·
纳米技术
·
仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）