ACS Omega
·
2020
·
IF 2.87
Zhigang Zhu,Lin Yang,Yongxian Yu,Lijing Zhang,Shengyang Tao
The integration of light-converting media and microflow chemistry renders new opportunities for high-efficient utilization of solar energy to drive chemical reactions. Recently, we proposed a design of fluorescent fluid photochemical microreactor (FFPM) with a separate light channel and reaction channel, which displays excellent advantages in energy efficiency, flexibility, and general use. However, the limitations of the scalability of the microchannel reactor are still a big challenge to be overcome. Herein, we illustrate the scalability of such an FFPM via a 2n numbering-up strategy by 3D printing technology. Channel shape, number, and interchannel spacing have been optimized, and the serpentine FFPM shows the best scalability with an excellent conversion rate and massive throughput. Reactors with up to eight channels have been fabricated and displayed conversions comparable to that obtained in a single-channel reactor, which provides a feasible strategy and an optimized structure model for batch production of fine chemicals.
研究领域:
化学工程
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材料科学
·
光化学
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2022
·Vol. 34
·期 21
·2200693
·
IF 32.086
Su Yang,Xiaoming Tao,Wei Chen,Jianfeng Mao,Heng Luo,Shuping Lin,Lisha Zhang,Jianhua Hao
The progress of spontaneous energy generation from ubiquitous moisture is hindered the low output current and intermittent operating voltage of the moisture-electric generators. Herein a novel and efficient ionic hydrogel moisture-electric generator (IHMEG) is developed by rational combination of poly(vinyl alcohol), phytic acid, and glycerol-water binary solvent. Thanks to the synergistic effect of notable moisture-absorption capability and fast ion transport capability in the ionic hydrogel network, a single IHMEG unit of 0.25 cm 2 can continuously generate direct-current electricity with a constant open-circuit voltage of ≈0.8 V for over 1000 h, a high short-current density of 0.24 mA cm −2 , and power density of up to 35 µW cm −2 . Of great importance is that large-scale integration of IHMEG units can be readily accomplished to offer a device with voltage up to 210 V, capable of directly driving numerous commercial electronics, including electronic ink screen, metal electrodeposition setup, and light-emitting-diode arrays. Such prominent performance is mainly attributed to the enhanced moisture-liberated proton diffusion proved by experimental observation and theoretical analysis. The ionic hydrogel with high cost-efficiency, easy-to-scaleup fabrication, and high power-output opens a brand-new perspective to develop a green, versatile, and efficient power source for Internet-of-Things and wearable electronics.
研究领域:
材料科学
·
能源技术
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2021
·
IF 17.881
Yuanyuan Gao,Zihua Li,Bingang Xu,Meiqi Li,Chenghanzhi Jiang,Xiaoyang Guan,Yujue Yang
With rapid advancement in wearable electronics, textile-based triboelectric nanogenerators (T-TENGs) have attracted great attention for energy harvesting and bio-motion sensing because of their softness, lightweight, and comfort properties. However, the interface bonding between functional materials and textile substrate , and the compatibility with manufacturing still face considerable challenges. Herein, a kind of scalable core–spun coating yarn-based triboelectric nanogenerators (CSCY-TENGs) with a hierarchical architecture is designed and developed via continuous manufacturing which integrates yarn spinning, coating and braiding technologies to achieve fully continuous production. In this method, spinning technology was used to spin a kind of conductive core-spun yarns with silver-plated nylon yarn (SNY) as core and insulating cotton fibers as shell, where SNY serves as electrode and cotton fibers serve as base materials for absorbing/coating with triboelectric materials. Then multiple core-spun yarns coated with nylon and doped polydimethylsiloxane are used as positive and negative triboelectric materials to realize hierarchical CSCY-TENGs by braiding technology. The CSCY-TENGs can be washed and compatible with industrial-scale manufacturing. Besides, it can achieve an output voltage of 174 V, and a peak power density and an average power density of 275 mW/m 2 and 57 mW/m 2 respectively. As demonstration, the CSCY-TENG can charge various commercial capacitors and power low-power electronics. It can also be used as an anti-theft alarm carpet and energy harvesting shoes for bio-motion detection and energy harvesting.
研究领域:
材料科学
·
能源技术
·
纺织工程
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 42
·期 5
·3819-3827
·
IF 3.201
Gailan Guo,Libin Liu,Qiang Zhang,Chenguang Pan,Qiqi Zou
A simple, low-cost, efficient, and easily scaled-up process for fabricating materials with special wettability for efficient oil/water separation under harsh conditions remains a great challenge. Herein, a fluorine-grafted graphene-based coating was fabricated by a facile solution-processable dip-coating method. The coating, composed of fluorine-grafted graphene (f-rGO) and γ-oxo-1-pyrenebutyric acid (OPBA) as molecular glue, can densely adhere on the surface of commercial materials (e.g., polypropylene membrane, cotton fabric, and polyurethane foam) and can tolerate harsh practical environments such as boiling water, high acid, high base, and saturated salty solutions. Importantly, the coated membrane exhibits efficient separation of surfactant-stabilized water-in-oil emulsions under these harsh conditions with high recyclability and extreme flux as high as 1395 L m−2 h−1 only under gravity. The coated foam can uptake oils from an oil/water mixture with high absorption capacity and recyclability. The outstanding performances (including durability, recyclability, scalability, and resistance to harsh environments) of the coating highlights its practical applications for separation of emulsions and cleanup oil-spills.
研究领域:
材料科学
·
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Xiaomin Luo,Jian Wang,Peng Zhang,Jianyan Feng,Xin Meng,Ka Li,Changyu Yin,Peng Wang,Lufeng Ji,Ying Liu,Zhilong Qiao
Nanofiltration membranes based on graphene oxide exhibit substantial potential for practical applications in water treatment, poised to lead the next generation of separation technology. It is noteworthy that the prominent hydration interaction among graphene–graphene oxide nanosheets stands as the primary factor influencing its stability. Simultaneously, the absence of suitable graphene substrates presents challenges to its large-scale production. In this study, our initial endeavor involved constructing a graphene-based selective layer on a PA6 substrate using a quasi-“rooting” strategy. The graphene selective layer was anchored onto the surface of PA6 fibers (with a diameter size of up to 190.0 mm and a selective layer thickness of approximately 5.0 µm). Experimental results reveal that the permeability of the hybrid graphene oxide/PA6 fiber composite nanofiltration membrane consistently maintained within the range of 7.7 to 14.9 L m⁻² h⁻¹ bar⁻ 1 , with a remarkable dye molecule removal rate of 99.06 %. Even under challenging operating conditions (such as strong acid, strong alkali, polar solvent, oxidation , and the coexistence of salt ions), its separation performance remained stable. The permeability of composite membranes was retained between 10.6 and 12.7 L m⁻² h⁻¹ bar⁻ 1 , and the rejection rate of CR dye reached 95.0 % under harsh conditions. Furthermore, the stability and anti-fouling performance of the composite membrane were significantly enhanced. Deposits on the membrane surface could be effectively removed through physical wiping and repeated water rinsing, maintaining membrane integrity even after vigorous ultrasonic cleaning (120 min, 950 W). Additionally, after undergoing 20 cycles of rinsing with deionized water and a 30-day soak in an aqueous solution, the PA6 substrate and graphene selective layer exhibited robust adhesion. No shedding was observed, and the dye rejection rate of the composite membrane consistently exceeded 95 %. This perfectly illustrates the exceptional structural stability and separation durability of the prepared separation membrane . Our work contributes fundamental design principles and theoretical insights for practical applications.
研究领域:
材料科学
·
环境工程
·
水处理
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Changyang Qiu,Zhihong Chen,Fenjuan Hu,Hailing Wu,Lu Wang,Meixia Liu,Kai Zhou
The seed cake of Camellia oleifera Abel. (SCOC), a big residue produced after Camellia oil extraction, enriches with many bioactive components. However, it is often discarded directly due to the lack of cost-effective extraction. Herein, a three-phase partitioning (TPP) system is first time tried for the simultaneous extraction of three major ingredients i.e. residual oil, protein, and polysaccharide from SCOC. Results from the extraction yields show that the established method is more efficient or at least comparable to conventional techniques. The developed method takes only 1.5 h and can be carried out at mild temperature of 40 °C, making it a cost-effective method. The successful scaling up of the extraction system at a 30 L extraction tank confirms its scalability. Furthermore, compared with conventional extraction methods, the TPP extracts shows better product quality. These facts, along with simultaneous extraction features of the method, allow us to use TPP as a promising extraction technology of SCOC biomolecules.
研究领域:
生物技术
·
食品科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ChemSusChem
·
2025
·
IF 6.6
Meng Liu,Guoqiang Han,Yaxu Sun,Lei Zhang,Qi Tang,Kaixia Liang,Qinqin Xia,Shuo Dou,Xiaoxue Song,Haipeng Yu,Yongzhuang Liu
Efficient fractionation of hemicellulose from lignocellulosic biomass is vital for its valorization. In this study, corncob is first used as a model feedstock due to its well-structured lignocellulosic composition. Through systematic optimization of parameters such as alkali concentration, temperature, reaction time, alkali type, and cosolvent, tetramethylammonium hydroxide (TMAH) is identified as the best choice for isolating hemicellulose with high purity. By further implementing optimized conditions (80 °C for 1 h), a urea-assisted TMAH system (comprising 6 wt% TMAH and 10 wt% urea) achieves a 74.94% extraction yield of high-purity hemicellulose (85.7%) from corncob. The versatility of this system is then confirmed by its ability to dissolve hemicellulose from various biomass sources, including Chinese fir, poplar, and bamboo. Additionally, integrating membrane separation within the TMAH–urea system enables scalable fractionation, significantly cutting down acid consumption and antisolvent use by at least 80%. A 500-fold scale-up maintains a close yield of 70.14%. The solvent system exhibits excellent recyclability, sustaining a yield of 64.74% after three recycling cycles. This research highlights the essential roles of alkaline platforms and membrane technology in the industrial production of high-purity hemicellulose. Graphical A tetramethylammonium hydroxide–urea system efficiently extracts high-purity and high-yield hemicellulose from corncob and diverse biomass sources. Integrated membrane separation enables closed-loop solvent recycling, significantly reducing acid/antisolvent consumption. The process demonstrates robust scalability and maintains high efficiency over multiple solvent cycles, offering a sustainable platform for biorefinery.
研究领域:
生物质转化
·
绿色化学
·
生物化工
·
分离科学
·
可再生资源利用
·
工业生物技术
·
环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Science
·
2024
·
IF 14.3
Qinan Qin,Yan Xu
Structurally colored fibers are attractive alternatives to chemically colored fibers due to their rich optical properties, color stability, and environmental friendliness. However, the fabrication of structurally colored fibers using cost-effective raw materials with the possibility to scale up remains challenging. Here, a simple and scalable approach is developed to fabricate continuous meter-long structurally colored fibers exhibiting brilliant structural colors across the visible spectrum and helix orientation-dependent polarization states. The fibers are fabricated by extrusion of concentrated aqueous solutions of chemically crosslinked hydroxypropyl cellulose (HPC). The wavelengths and polarization states can be tuned by solution concentration, relaxation time, and collector's surface energy. The HPC-based structurally colored fibers display excellent optical stability to mechanical straining, repeated drying/water impregnation, and prolonged heating at 150 °C. It is demonstrated that the HPC-based structurally colored fibers can be woven into structurally colored fabrics with wavelength- and polarization-coded optical patterns. The current work presents a strategy to tune the chiral nematic order, which constitutes an important step toward mass production of structurally colored fibers with stable and rich optical properties using easily available raw materials.
研究领域:
材料科学
·
纺织工程
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Sustainable Systems
·
2022
·Vol. 6
·期 5
·2100495
·
IF 6.737
Kairui Zhang,Liangliang Zhu,Huayang Li,Mei Zheng,Jun Zhang,Yongjun Zheng,Rongbo Zheng
Biomass-based plastics (BPs), produced from natural polymers using a bottom-up strategy, have been used to alleviate the environmental pollution caused by petrochemical-based plastics (PCPs). Such BPs, however, typically require complex manufacturing processes, resulting in higher costs and reduced eco-friendly features. Herein, a delignification-splicing-based strategy without adhesives for directly converting corn ( Zea mays L.) husks to corn husk-based plastic (CHP) is described. During this process, lignin is removed from the corn husks and the pores collapse to form a dense structure. The CHP, which combines high mechanical strength (118 MPa) and a Young's modulus of 7.8 GPa with excellent light transmittance (86%), can be prepared in large sheets and can potentially replace non-renewable, non-biodegradable PCPs. Each hm 2 of cornfield can generate 1.2 hm 2 of CHP annually using the strategy. The process is simple, green, scalable, and as low cost as traditional PCPs since the only consumables are corn husks, NaClO, and water. Functional CHPs, such as fluorescent or hydrophobic CHPs, can be fabricated by impregnating delignified corn husk with carbon dots before pressing or by post-pressing hydrophobilization, respectively. This work develops an alternative green and sustainable technology for eco-friendly BPs, adds value to agricultural waste, and reduces greenhouse gas emissions.
研究领域:
材料科学
·
环境科学
·
可持续技术
·
农业工程
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Ningqing Lv,Beidou Xi,Jian Mao,Ruonan Guo
The advanced oxidation studies have prioritized removal rates, yet quantitative evidence on PMS utilization is scarce. This study used coffee grounds as the carbon source to construct N-Co/biochar (N 50 CoCG) through a one-step hydrothermal method, and a scaled batch was prepared in a 500 mL autoclave (N 50 CoCG-500). The two catalysts exhibited highly consistent morphology, wettability, and surface chemistry, and showed comparable peroxymonosulfate (PMS) activation. Under the experimental conditions of 50 mg/L catalyst dosage and 0.02 mM PMS concentration, nitenpyram (NPR) removal reached 100 % and PMS utilization was >90 %. In a 10-day fixed-bed run, both NPR removal and PMS utilization remained >90 %, while Co leaching stayed below 6.87 μg/L. Open-circuit potential and chronoamperometric responses showed rapid, reversible electron transfer between PMS/NPR and Co N sites, enabling a reversible Co 3+ /Co 2+ cycle enabling >90 % PMS utilization. The one-pot hydrothermal strategy unites scalability with ultrahigh oxidant utilization, offering a scalable, oxidant-efficient catalyst oriented toward the “oxidant economy” and validated under continuous-flow conditions.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Keming Zhang,Sihui Li,Xiaohe Tian,Rui Zhang,Xiaoting Feng,Qingnan Wang,Yanting Tang,Chenlu Liu,Hongxia Gao,Shaofei Wang
Metal-organic framework (MOF) membranes demonstrate significant potential for industrial gas separations, yet fabricating vertically aligned two-dimensional (2D) MOF membranes on polymer substrates remains a considerable challenge due to the weak adhesion and difficulty in achieving precise alignment. This study presents a one-step method for the rapid synthesis of vertically aligned ZIF-L membranes, using a polydopamine (PDA)-assisted approach. This method enables the rapid formation of homogenous, thin but defect-free membranes on polymer substrates within 5 min, drastically reducing the preparation time by over 200 times. The vertically aligned ZIF-L membranes, characterized by the interlayer galleries facing the gas mixtures, exhibit an excellent CO 2 permeance exceeding 1200 GPU and a CO 2 /N 2 selectivity of 14.5. The versatility of this approach allows for its application on various flat-sheet or even hollow fiber supports. Our findings highlight the potential of PDA-assisted synthesis for efficient, scalable preparation of high-performance MOF membranes for industrial gas separations.
研究领域:
化学工程
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Wenjing Ye,Sisi Xiao,Jiahui Yuan,Sangshan Peng,Qing He
Supramolecular-engineered pseudo-nanophase separation offers a compelling strategy for fabricating ion-conducting membranes with industrial scalability while maintaining rapid ion transport and chemical robustness. However, fundamental distinctions between pseudo-nanophase separation and its conventional counterpart remain poorly understood. We engineered ion-conducting membranes featuring snowflake-like multi-branched hydrophilic sidechains through covalent and supramolecular grafting, inducing conventional versus pseudo-nanophase separation. Comparative analysis revealed both architectures form analogous 4–11 nm hydrophilic domains (∼7 nm median) through hydrophobic/hydrophilic segregation. Though conventional domains contain tethered sidechains versus sulfuric acid solutions in pseudo-separated counterparts, the membranes demonstrate comparable area resistances (0.25 vs 0.24 Ω cm 2 ) and vanadium permeabilities (1.1 vs 1.3 × 10 −9 m 2 s −1 ), leading to indistinguishable efficiencies and cycling stability in vanadium redox flow batteries. The observed functional equivalence, wherein proton transfer kinetics and vanadium-ion exclusion are largely insensitive to the molecular constitution of the engineered nanochannels, challenges conventional membrane design paradigms emphasizing covalent architectures for optimal ion selectivity. This finding advances the mechanistic understanding of nanochannel-mediated ion transport and substantiates the high credibility and efficiency of the pseudo-nanophase separation strategy.
研究领域:
材料科学
·
高分子化学
·
电化学
·
能源存储
·
膜科学
·
功能材料
✓ 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）