ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Shuitao Gao,Wenkai Wang,Tongyue Wu,Shasha Jiang,Jinwan Qi,Zhiyang Zhu,Bin Zhang,Jianbin Huang,Yun Yan
Adhesives are crucial both in nature and in diversified artificial fields, and developing environment-friendly adhesives with economic procedures remains a great challenge. We report that folic acid-based coacervates can be a new category of excellent adhesives for all kinds of surfaces with long-lasting adhesiveness. Aided by the electrostatic interaction between the π–π stacked folic acid quartets and polycations, the resultant coacervates are able to interact with diversified substrates via a polyvalent hydrogen bond, coordination, and electrostatic interactions. The adhesivity to wood is superior to the strong commercial glues, but without releasing any toxic components. Upon evaporating water, the coacervate can be casted into a non-adhesive flexible self-supporting film, which restores the adhesive coacervate immediately on contacting water with original adhesive ability. In this way, the coacervate can be facilely tailored into a double-sided tape (DST), which is convenient for storage and application under ambient conditions. Given its excellent adhesive performance, release of nontoxic gases, and convenience in storage and application, the folic acid-based DST is very promising as a new adhesive material.
研究领域:
材料科学
·
生物化学
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产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Jian Meng Jiao,Kai Tang,Jafar Safarian,Bettina Grorud,Kathrine Sellevoll,Merete Tangstad
Si 3 N 4 is a candidate crucible material for Si–B alloys in high temperature thermal energy storage system. In this regard, the phase formation in the Si–B alloys and the interaction between the alloys and Si 3 N 4 were investigated in an induction furnace at 1750 °C with the B addition of 2, 5, 8, and 11 mass %, respectively. Moreover, the wettability property of the Si-3.25B alloy (mass %) on Si 3 N 4 substrate was examined at temperatures up to 1400 °C. The cross-sectional images and micro-analyses showed that BN precipitates were produced in the Si–B alloys and a BN layer was formed at the interface between the Si–B alloys and Si 3 N 4 . However, the amount of BN precipitates was negligible. Next, the equilibrium contact angle of liquid Si-3.25B alloy on Si 3 N 4 substrate was determined to be 134 ± 1°, which indicates non-wetting behavior. The above results support that Si 3 N 4 is a desirable refractory material for the high temperature thermal energy storage system.
研究领域:
材料科学
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能源工程
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产品关联
DOI
高影响因子
Energy & Environmental Science
·
2020
·Vol. 13
·期 2
·579-591
·
IF 30.289
Binbin Jiang,Xixi Liu,Qi Wang,Juan Cui,Baohai Jia,Yuke Zhu,Jianghe Feng,Yang Qiu,Meng Gu,Zhenhua Ge,Jiaqing He
The application of thermoelectric technology is hindered by low efficiencies and high costs, demonstrating a strong demand for high-performance thermoelectric materials composed of low-cost and earth-abundant elements. PbS-based materials have attracted much attention for thermoelectric power generation due to their low-cost and earth-abundant features. However, the high lattice thermal conductivities and low electron mobilities of these materials limit their thermoelectric performance. Here, we show that we can largely reduce the lattice thermal conductivity of an n-type PbS-based material to 0.4 W m−1 K−1 through introducing zigzag nanoprecipitates with a uniform width of around 1 nm. The electron mobility was also successfully improved by reducing the effective mass through Se alloying. Finally, an extraordinary figure of merit of 1.7 at 900 K was realized in an n-type Pb0.93Sb0.05S0.5Se0.5 sample. A thermoelectric power generation module was fabricated with this n-type PbS material and our home-made high-performance p-type PbTe. It demonstrated a high conversion efficiency of 8.0% at a temperature difference of 565 K. Furthermore, a segmented module consisting of n-/p-Bi2Te3 and n-PbS/p-PbTe was fabricated, which exhibited a high conversion efficiency of 11.2% at a temperature difference of 585 K. This efficiency is the same as those of reported PbTe-based modules, and it was realized at a much lower cost. As a result, low-cost high-performance n-type PbS-based materials as a promising PbTe alternative will promote the extensive commercial application of thermoelectric power generation.
研究领域:
材料科学
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能源技术
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DOI
高影响因子
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2022
·Vol. 57
·期 7
·4422-4431
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IF 3.612
Yaowei Liu,Keyu Wang,Peng Zhou
Summary To prepare a milk protein-enriched ink for extrusion-based 3D food printing, this study investigated the effects of a wide range of hydrocolloids on the microstructures, viscoelastic characteristics and 3D printing performance of milk protein concentrate (MPC). The distributions of hydrocolloids and milk protein in mixed coacervates were characterised by fluorescent covalent labelling and confocal laser scanning microscope (CLSM), and the microstructure of the coacervates was observed by scanning electron microscopy (SEM). In addition, the rheological properties of prepared protein coacervates, including steady shear test, dynamic oscillatory test, thixotropy and creep recovery were investigated. Meanwhile, Burger’s model was fitted to the creep behaviour to further study their viscoelastic properties. The results showed that κ-carrageenan, pectin, guar gum and sodium alginate significantly increased the zero-shear viscosity, thixotropy and solid-like behaviour while xanthan showed an opposite phenomenon. Results showed that the presence of hydrocolloids improved the 3D printability of MPC by forming a complex network between protein particles and hydrocolloids, and guar gum, pectin and κ-carrageenan better help maintain the deposited 3D structures of MPC ink than xanthan.
研究领域:
食品科学
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生物材料学
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产品关联
DOI
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 28
·16481-16489
·
IF 3.119
Ning Ding,Huai Liu,Xianhai Zeng,Yong Sun,Xing Tang,Lu Lin
Effluent from biomass pretreatment industries affects a substantial proportion of industrial wastewater and can be troublesome to treat. In a new environmentally benign biomass pretreatment approach based on cooking with active oxygen and solid alkali (CAOSA), some precipitates were found to be produced while the effluent (yellow liquor) was treated with alcohol or acid. Based on the precipitation approaches, component contents in CAOSA yellow liquor were successfully made clear, consisting of 57.19 wt% low molecular weight acid salts, 15.47 wt% lignin, 4.30 wt% saccharides and 23.04 wt% inorganic salts. Different organic solvents were tested as the precipitants, and when ethanol was used, over 81 wt% of the compounds in the yellow liquor could be precipitated. Meanwhile, 89.2% of the solid alkali consumed in CAOSA pretreatment could be recovered, showing prospects for primary effluent treatment. Furthermore, CAOSA lignin (CL) was recovered by acid precipitation from yellow liquor. By characterization, CL was found to have lower molecular weight and higher β-O-4 bond (60.05%) ratio than milled wood lignin (MWL, 48.64%), and thus, it might be a more ideal feedstock for further valorization.
研究领域:
环境科学
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生物化学
✓ 已验证
DOI
PubMed
高影响因子
BIOMACROMOLECULES
·
2023
·
IF 6.2
Shiying Lang,Yangrui Du,Li Ma,Yangjing Bai,Ying Ji,Gongyan Liu
Hemostatic powders provide an important treatment approach for time-sensitive hemorrhage control. Conventional hemostatic powders are challenged by the lack of tissue adhesiveness, insufficient hemostatic efficacy, limited infection control, and so forth. This study develops a hemostatic powder from tricomponent GTP coacervates consisting of gelatin, tannic acid (TA), and poly(vinyl alcohol) (PVA). The physical cross-linking by TA results in facile preparation, good storage stability, ease of application to wounds, and removal, which provide good potential for clinical translation. When rehydrated, the coacervate powders rapidly form a cohesive layer with interconnected microporous structure, competent flexibility, switchable wet adhesiveness, and antibacterial properties, which facilitate the hemostatic efficacy for treating irregular, noncompressible, or bacteria-infected wounds. Compared to commercial hemostats, GTP treatment results in significantly accelerated hemostasis in a liver puncture model (∼19 s, >30% reduction in the hemostatic time) and in a tail amputation model (∼38 s, >60% reduction in the hemostatic time). In the GTP coacervates, gelatin functioned as the biodegradable scaffold, while PVA introduced the flexible segments to enable shape-adaptability and interfacial interactions. Furthermore, TA contributed to the physical cross-linking, adhesiveness, and antibacterial performance of the coacervates. The study explores the tunability of GTP coacervate powders to enhance their hemostatic and wound healing performances.
研究领域:
生物医学工程
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材料科学
·
创伤护理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Chemistry-X
·
2024
·
IF 6.5
Qingguan Liu,Li Tan,Pengzhi Hong,Huanming Liu,Chunxia Zhou
The development of binary protein systems featuring superior nutritional properties and applied range is an interesting and challenging task in the food industry. In this study, the tilapia-soybean protein co-precipitates (TSPCs) with different mass ratios of tilapia meat and soybean meal were constructed. Results of physicochemical properties showed that the highest solubility and thermal stability values of TSPCs were 81.90 % and 90.30 °C, respectively. TSPCs have the full complement of amino acids and enhanced nutritional quality compared to tilapia protein isolate (TPI) and soybean protein isolate (SPI). TSPC 2:1 and TSPC 1:1 contained the highest levels of tryptophan, aspartic acid, glycine, histidine, and arginine relative to TPI and SPI. The in vitro protein digestibility and protein digestibility corrected amino acid scores of TSPCs were also higher than that of SPI. SDS-PAGE revealed that TSPCs contained protein subunits from TPI and SPI. Moreover, the lysine-to-arginine ratio and β subunit were greatly correlated with protein digestibility with correlation coefficients of −0.962 ( P < 0.01) and −0.971 ( P < 0.01), respectively. Compared to SPI, TSPCs displayed a lower lysine-to-arginine ratio and β-conglycinin content, which improved its digestibility. Proteomic analysis indicated that TSPC 1:1 had 989 unique proteins, which gives TSPCs enhanced biological properties compared to TPI and SPI, allowing them to participate in a broad range of biochemical metabolic and signal transduction pathways. The study would advance the utilization of mixed proteins toward exceptional food industry applications.
研究领域:
食品科学
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营养学
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蛋白质组学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Frontiers of Chemical Science and Engineering
·
2020
·Vol. 15
·期 2
·340-350
·
IF 3.552
Zhang Wei,Xu Boren,Gong Caihong,Yi Chunwang,Zhang Shen
In this study, a facile and environmentally friendly method with low energy consumption for preparing nanoscale AgCl and BaSO 4 co-precipitates (AgCl@BaSO 4 co-precipitates) was developed based on the metathetical reaction. Then, the dried co-precipitates were melt-compounded with polyamide 6 (PA6) resins at a specified mass ratio in a twin-screw extruder. The results demonstrated that in the absence of any coating agent or carrier, the nanoparticles of AgCl@BaSO 4 co-precipitates were homogeneously dispersed in the PA6 matrix. Further analysis showed that after the addition of AgCl@BaSO 4 co-precipitates, the antibacterial performance, along with the flame-retardance and anti-dripping characteristics of PA6, was enhanced significantly. In addition, the PA6 composites possessed high spinnability in producing preoriented yarn.
研究领域:
材料科学
·
纳米技术
·
高分子化学
✓ 已验证
DOI
高影响因子
Journal of Cleaner Production
·
2021
·
IF 9.297
Tong Wen,Yunliang Zhao,Xiangke Jiao,Guang Yang,Zixuan Zhang,Wei Wang,Tingting Zhang,Qiwu Zhang,Shaoxian Song
The use of sediment wastes after water treatment , from traditional wastewater management to secondary resource recycling, has attracted increasing attention. In this work, the feasibility, catalytic effect and mechanism of using artificial copper-based precipitation as photo-Fenton-like catalysts were investaged. According to the XRD , SEM-EDS, XPS and various photoelectric characterizations, the copper-based precipitation showed the potential acting as a photo-Fenton-like catalyst due to its abundant copper ions and photoresponse characteristics. The 0.06 g L −1 copper-based precipitation decolors 97% of methylene blue with initial concentration of 20 mg L −1 within 20 min assisted by H 2 O 2 and light, which is superior to the commonly used catalysts in terms of decolorization rate and catalysts dosage. Excellent catalytic performance is by virtue of the enhanced reduction reaction from Cu(II) to Cu(I), resulting in an increasing utilization rate of hydrogen peroxide, and increasing ·OH for decoloration. In addition, the catalyst activity can be replicated in successive experiments without a significant decline, further suggesting the feasibility from wastes to materials. The research progress shows the potential value of secondary resources containing posnjakite based on its unique character.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Haofan Wen,Yunfa Si,Zibo Chen,Yitong Xin,Shaowen Cao,Cheng Chen,Haoran Zu,Daping He
MXenes are emerging materials renowned for their exceptional conductivity, abundant functional groups, and excellent solution processability, making them highly promising as conductive-additive-free inks for flexible electronic devices. However, current preparation methods are hampered by low yields of MXene flakes so that substantial waste MXene sediments (MS) are generated. Here, we demonstrate a type of conductive ink with appropriate rheological properties, namely MG inks formulated using MS and graphene oxide (GO), for screen-printing frequency selective surface (FSS). GO facilitates interlayer interactions by covalently cross-linking with MXene flakes, resulting in a denser structure and significantly enhancing the conductivity of the best-performing MG-based ink to 849 S cm–1. Additionally, GO serves as a binder to considerably improve the rheological properties of MS, thus enabling high-quality printing on various substrates. The close stacking of MS and GO not only improves the oxidation resistance but also maintains conductivity above 97% even after 60 days. Furthermore, the MG-based FSS produced via straightforward screen printing demonstrates excellent performance and retains its functionality after 90 days of operation. This MS-based ink formulation represents a strategy of “turning trash into treasure” and highlights the potential of MS for the next generation of electronic devices.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Rong Li,Yiziqi Lu,Meiqian Lu,Yue Liu,Guodong Zhang,Qiuling Ma,Jian Zhou,Tiecheng Wang
Iodinated X-ray contrast media, as a frequently used medical diagnosis in the imaging of internal organs, soft tissues, and blood vessels, are widely encountered in water environments because of their non-metabolic ability. Herein, a series of co-precipitates (DBC-FeO x ) of dissolved black carbon (DBC) and FeO x were successfully synthesized. The chelation of Fe species with COO – groups in DBC enhanced the excellent electron transfer capability and persulfate (PS) activation performance of the resulting DBC-FeO x , thus boosting iopamidol (IPM) degradation. The IPM removal rate constant in the DBC-FeO x /PS was 35 times and 4.6 times higher than those observed in the DBC/PS and FeO x /PS systems, respectively. There existed an appropriate C/Fe molar ratio in the DBC-FeO x co-precipitates for PS activation, and the IPM degradation was driven by both radical and non-radical pathways. Fe sites were the primary active sites in DBC-FeO x for PS activation, and C=O groups played an important role in accelerating the Fe(III)/Fe(II) cycle by promoting rapid electron transfer, thereby enhancing radical oxidation pathways. Concurrently, DBC-FeO x acted as an electron shuttle to promote the electron transfer from IPM to PS, creating non-radical pathways for IPM removal. IPM degradation processes involved amide hydrolysis oxidation, hydrogen extraction, and deiodination. The typical iodine species HOI was also converted to non-toxic IO 3 - after IPM decomposition, thus reducing potential risks.
研究领域:
环境科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2019
·
IF 0
Shaohai Wu,Hengquan Yang,Zhengsen Wu,Chengyan Liu,Lei Miao,Jie Gao,Xiaoyang Wang,Xiuxia Wang,Chengjin Shen,Jacques G. Noudem,Jun Wang
Eco-friendly and low-cost layered SnSe2-based materials have been attracting great attention in the thermoelectric field for their intrinsically low thermal conductivity. In this work, we applied AgCl as Cl-dopant and formed Ag-rich precipitates in SnSe2 polycrystals, and their thermoelectric properties were investigated. The results demonstrate that Cl was artificially incorporated into SnSe2 by the substitution of Se atoms, playing as donor centers and thus increasing the carrier concentration by 2 orders of magnitude, leading to a tremendous improvement of the electrical conductivity and power factor. However, Ag atoms hardly enter into the Sn lattice sites and brought about the generation of Ag-rich precipitates. The complicated microstructures with multiple types of defects, such as point defects, boundaries, dislocations, and so on, result in a relatively low lattice thermal conductivity in the AgCl-introduced SnSe2 samples. Additionally, the anisotropic electrical and thermal transport properties were investigated, and the results show that higher ZT values were obtained along the pressing direction in these textured samples because of the significantly suppressed lattice thermal conductivity caused by the enhanced phonon scattering via the interior van der Waals layers. Ultimately, a maximum ZT value of 0.35 was realized at 400 °C in the polycrystalline SnSe2 with introduction of 11 mol % AgCl, which is nearly 3 times higher than that value of the pristine counterpart. It demonstrates that the combined effects of Cl-doping, Ag-rich precipitates, and texturing could effectively enhance the ZT value for polycrystalline SnSe2.
研究领域:
材料科学
·
热电学
·
固体物理学
✓ 已验证
产品关联
DOI
危险品化学品经营许可证（带存储）