Advanced Fiber Materials
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2023
·Vol. 5
·期 6
·1919-1933
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IF 16.1
Wang Yuxiao,Zhou Ruifu,Cong Haofei,Chen Guangshou,Ma Yanyan,Xin Shuwen,Ge Dalong,Qin Yuanbin,Ramakrishna Seeram,Liu Xuhai,Wang Fengyun
In this work, a light-stimulated artificial synaptic transistor based on one-dimensional nanofibers of gallium-doped indium zinc oxides (IGZO) is demonstrated. The introduction of gallium into the nanofiber lattice can effectively alter the morphology and crystallinity, leading to a wider regulatory range of synaptic plasticity. The fabricated IGZO synaptic transistor with the optimal gallium concentration and low surface defects exhibits a superior photoresponsivity of 4300 A·W −1 and excellent photosensitivity, which can detect light signals as weak as 0.03 mW·cm −2 . In particular, the paired-pulse facilitation index reaches up to 252% with over 2 h of enhanced memory retention exhibiting the long-term potentiation. Furthermore, the simulated image contrast and image recognition accuracy based on the newly designed IGZO synaptic transistors are successfully enhanced. These remarkable behaviors of light-stimulated synapses utilizing low-cost electrospun nanofibers have potential for ultraweak light applications in future artificial systems. Graphical
研究领域:
材料科学
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纳米科技
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光电子学
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神经形态工程
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生物医学工程
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半导体器件
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Food Packaging and Shelf Life
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2026
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IF 10.8
Jie Yao,Mengran Zhang,Guohua Zhao,Damao Wang
A bioactive and biodegradable packaging film was fabricated via a solvent-casting method using poly(vinyl alcohol) (PVA) reinforced with alkaline–peroxide treated brewers’ spent grain (BSG-M) and zinc oxide nanoparticles (ZnO-NPs). Alkaline–peroxide treatment was applied to BSG, which is reported to disrupt lignin–carbohydrate associations and promote microfibrillation, yielding a modified lignocellulosic filler containing residual proteins that dispersed uniformly within the PVA matrix, thereby enhancing the tensile performance and soil degradability of the composite films. The incorporation of an optimal ZnO loading (2–3 wt%) facilitated the formation of dense hydrogen-bond networks and increased the tortuosity of the diffusion path. Consequently, the composite films exhibited a UV-B blocking efficiency exceeding 96%, antibacterial inhibition rates up to ∼100% (depending on ZnO loading) against Escherichia coli and Staphylococcus aureus , and a moderate DPPH-radical scavenging activity (approximately 20%). Specifically, the PBZ-3 film (containing 3 wt% ZnO) significantly enhanced the preservation of strawberries during 8 days of storage at 4 °C. Compared with commercial polyethylene (PE) packaging, the PBZ-3 film minimized weight loss to 12.84% and provided superior vitamin C retention and improved visual quality, while maintaining the critical advantage of biodegradability. Furthermore, soil burial tests demonstrated a 54% mass loss within 30 days, confirming a favorable balance between functional performance and biodegradability. These results indicate that the PVA/BSG/ZnO ternary composite film is a promising biodegradable active packaging material with moisture-barrier, UV-shielding, antibacterial, and extract-based antioxidant functions for fresh produce.
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ENVIRONMENTAL POLLUTION
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2023
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IF 8.9
Xiaolong Yu,Xu Jin,Meng Li,Yuanyuan Yu,Hang Liu,Rujin Zhou,Aiguo Yin,Junyi Shi,Jianteng Sun,Lizhong Zhu
Recently, sodium percarbonate (SPC) as a solid substitute for H 2 O 2 has aroused extensive attention in advanced oxidation processes . In current work, the degradation kinetics and mechanisms of antibiotic sulfamethoxazole (SMX) by ultraviolet (UV) driven SPC system were explored. The removal efficiency of SMX was enhanced as the increasing dosage of SPC. Moreover, hydroxyl radical (•OH), carbonate radical (CO 3 •− ) and superoxide radical (O 2 •− ) were verified to be presented by scavenger experiments and •OH, CO 3 •− exhibited a significant role in SMX degradation. Reactions mediated by these radicals were affected by anions and natural organic matters, implying that an incomplete mineralization of SMX would be ubiquitous. The screening four intermediates and transformation patterns of SMX were verified by DFT analysis. Metabolomic analysis demonstrated that a decreasing negative effect in E. coli after 24 h exposure was induced by intermediates products. In detail, SMX interfered in some key functional metabolic pathways including carbohydrate metabolism , pentose and glucuronate metabolism, nucleotide metabolism, arginine and proline metabolism, sphingolipid metabolism, which were mitigated after UV/SPC oxidation treatment, suggesting a declining environmental risk of SMX. This work provided new insights into biological impacts of SMX and its transformation products and vital guidance for SMX pollution control using UV/SPC technology .
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DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2023
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IF 6.6
Jinke Wang,Lingwei Ma,Xiaolun Ding,Haowen Xu,Yue Wang,Miao Zhao,Chenhao Ren,Dawei Zhang
In this study, a robust coating with enhanced corrosion resistant and weathering resistant properties was developed by incorporating novel UV resistant fillers into epoxy matrix. Tea polyphenol (TP) functioned as the free radical scavenger, which was encapsulated into mesoporous silica nanoparticles with UV absorption ability (MSN-TP) to obtain the UV resistant filler. With the incorporation of 2 wt% MSN-TP fillers in the epoxy matrix, the uniform distribution of MSN-TP nanoparticles could block the penetration of corrosive media and hence strengthening the barrier property of the coating. Moreover, the free radical scavenging ability of TP and the UV shielding effect of MSN functioned simultaneously to alleviate the weathering degradation of epoxy coating, which exhibited stabilized surface properties (including macro and micro morphology, FTIR , CLSM , gloss, and WCA) and good barrier performance during accelerated weathering exposure test. Such a robust EP/MSN-TP coating can considerably prolong the long-term protection during outdoor service life.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2023
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IF 8.2
Yuanlong Guo,Yang You,Gu Guo,Zixiang Chen,Wei Peng,Lijie Hu,Songmiao Liang,Haibo Xie
Herein, a serial of full cellulose and lignosulfonate derivatives (LS), including sodium lignosulfonate (LSS), calcium lignosulfonate (LSC), lignosulfonic acid (LSA), composite films were generated through dissolving cellulose in reversible carbon dioxide (CO 2 ) ionic liquids solvent system (TMG/EG/DMSO/CO 2 solvent system), followed by a facile solution-gelation transition and absorption strategy. The findings indicated that LS aggregated and embedded inside the cellulose matrix via H-bond interaction. The cellulose/LS derivatives composite films showed good mechanical properties which the tensile strength reaches the maximum value of 94.7 MPa in MCC3LSS film. While for the MCC1LSS film, the breaking strain increases to 11.6 %. The outstanding UV shielding effect and high transmittance in the visible region of composite films were also achieved and the shielding performance of the whole UV region (200–400 nm) tended to 100 % for MCC5LSS film. In addition, thiol-ene click reaction was selected as model reaction to verify the UV-shielding performance. It was also found that the oxygen and water vapor barrier performances of composite films were evidently associated with the intense H-bond interaction and tortuous path effect. The OP and WVP of MCC5LSS film were 0 and 6 × 10 −3 g·μm/m 2 ·day·kPa, respectively. These outstanding properties make them with great potential for packaging field.
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DOI
PubMed
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SEPARATION AND PURIFICATION TECHNOLOGY
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2023
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IF 8.6
Chen Ling,Chaolin Li,Aiping Liang,Wenhui Wang
Microplastics (MPs) pose a severe threat to the environment and human health, and effective treatment techniques are urgently desired to prevent the global spread of MPs pollution. However, efficient degradation of MPs remains difficult. Herein, vacuum ultraviolet (VUV) activated peroxymonosulfate (PMS) was firstly proposed as a promising technique for the degradation of polyethylene MPs. The weight loss of MPs reaches as high as 51.5% under mild conditions ([PMS] = 32 mmol/L, initial pH = 7, [MPs] = 1 g/L, [Time] = 48 h), which is the record performance achieved at room temperature and ambient pressure for MPs degradation. The excellent degradation performance is uncovered to originate from the synergistic effect of VUV and activated PMS. Direct photolysis of VUV can rapidly oxidize the surface of MPs to reduce its hydrophobicity and thus enhance the adsorption of reactive oxidation species (i.e., SO 4 ⋅− and HO ⋅ ) rooted from the VUV activated PMS, which was further confirmed by DFT calculations. The degradation of MPs repeatedly undergoes the process of VUV photolysis oxidation of the surface, degradation via VUV/UV/PMS-derived reactive oxidation species, shedding, and re-exposure of the new surface via VUV photolysis oxidation. This study highlights the unique role of the VUV photolysis in MPs degradation, paving a new route for designing practical MPs pollution remediation techniques.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2023
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IF 8.6
Yiqun Chen,Baitian Zeng,Liying Long,Qing Shao,Zizheng Liu,Feng Wu,Pengchao Xie
The ultraviolet/persulfate (UV/PS) process has attracted more and more attention for water treatment. However, it runs the risk of producing bromate in the presence of bromide ions. In this work, we propose a new strategy using sulfite to inhibit bromate formation. The results show that the addition of sulfite significantly reduced the formed bromate in the UV/PS system by 61.2% and 24.5% in 30 min and 120 min, respectively. Increasing sulfite dosage or pH could enhance bromate control. From the standpoint of reaction kinetics, sulfite is likely to inhibit bromate formation by reducing bromine radicals (Br ) back to bromide ions, the energy profile of which was quantified by density functional theory (DFT) calculations. In the UV/PS/sulfite system, the conversion of SO 3 − to HO was observed, indicating that sulfite also served as a source of reactive radicals. Moreover, sulfite apparently promoted the degradation of benzoic acid and phenol in a UV/PS system, showing advantages over other inorganic reductants. As a result, we discovered that sulfite could not only help control bromate formation in UV/PS but also improve the system’s oxidation capacity.
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ACS ES&T Water
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2023
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IF 5.3
Shaopeng Zhang,Bingnan Song,Runhua Wang,Zhengshuo Zhan,Michel Saakes,Renata D. van der Weijden,Cees J. N. Buisman,Yang Lei
Hypophosphite (P(I)) is ubiquitous in some waste streams. It may contribute to the eutrophication of water bodies, yet conventional methods are ineffective in treating P(I)-laden wastewater. Here, we propose a novel CaO2/ultraviolet (UV) system that can simultaneously remove P(I) and recover Ca-phosphate. This system lies in the simultaneous release of OH–, Ca2+, and H2O2, with the last being activated and producing reactive oxygen species (ROS) under UV irradiation. Subsequently, the generated ROS converts P(I) to phosphite and phosphate, forming Ca-phosphate with the released Ca2+ at pH 11.0. Beyond activating H2O2, UV light also promotes the dissolution of CaO2 powders. The system removes 97.0% of 1.0 mM P(I) in 6 h with dosing 2.0 mM CaO2. The presence of 5.0 mM HCO3– drops P(I) removal from 97.0 to 14.1% by competing with P(V) toward Ca2+. Nitrate and humic acid show similar effects by adsorbing UV light or quenching ROS. However, we may overcome the adverse effects with an enhanced CaO2 dose. For example, with 10 mM CaO2, the CaO2/UV system removed more than 78% of non-ortho P from actual electroless rinse water. These results confirmed that CaO2/UV is an exciting all-in-one system for treating P(I)-laden wastewater and recovering valuable P products.
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高影响因子
FOOD HYDROCOLLOIDS
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2022
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IF 11.504
Jingjing Ding,Yunxing Li,Qiubo Wang,Linqian Chen,Yi Mao,Jie Mei,Cheng Yang,Yajuan Sun
Herein, we reported the use of natural, renewable, and food-grade Spirulina protein isolate nanoparticles (SPI NPs) as effective particle stabilizers for Pickering high internal phase emulsions (Pickering-HIPEs). SPI NPs were prepared using a straightforward antisolvent technique and characterized using dynamic light scattering (DLS), and zeta potential measurement as well as scanning electron microscopy (SEM). SPI NPs were afterward used as sole stabilizers to prepare the oil-in-water (O/W) HIPEs, the effects of oil content, particle concentration, and pH of aqueous phase on the microstructure, stability, and rheological behaviors of the resulting Pickering-HIPEs were investigated. The Pickering-HIPEs generated showed a self-supporting gel network, a high oil content (up to 85 vol %), and extraordinary storage stability after prolonged storage and UV exposure. Concurrently, the Pickering-HIPEs provided good UV protection for a variety of photosensitive compounds, including β -carotene, vitamin E , and limonene. These findings would not only advance the development of biocompatible particle stabilizers for Pickering-HIPEs in cosmetic, food , and pharmaceutical industries, but they would also provide a guidance for the protection of photosensitive compounds.
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高影响因子
Surfaces and Interfaces
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2023
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IF 6.2
Congcong Li,Huixia Feng,Guannan Ju,Baiyi Chen,Baomei Huang
Traditional self-cleaning surfaces are always limited to defects of poor robustness, complex preparation process and single function. In order to address these problems, we have constructed a versatile self-cleaning superhydrophobic surface with reliable robustness, photodegradation , ease of manufacturing and magnetic navigation. This function integrated surface is conveniently fabricated by spraying a fluorosilane modified TiO 2 /Fe 3 O 4 nanoparticles suspension onto an adhesive coated substrate, which was made by directly spraying the adhesive onto both soft and hard substrates to improve the robustness. During the volatilization of the ethanol-based suspension, due to the superior compatibility between the solvent and the adhesive, the functional nanoparticles are embedded in the adhesive layer and are firmly bound to it. This superhydrophobic surface shows significant robustness to damage tests and remain self-cleaning property even immersed in oil. By using this surface in oil-water separation, it indicates excellent separation efficiency for various oi-water mixtures. Meanwhile, the superhydrophobic surface shows excellent potential applications as a function integrated oil-water separation device contributed by the photodegradation property of TiO 2 nanoparticles and magnetic navigation property from Fe 3 O 4 nanoparticles.
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FOOD HYDROCOLLOIDS
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2022
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IF 11.504
Yuan He,Hai-Chuan Ye,Ting-Ting You,Feng Xu
The natural biopolymers hold substantial prospects as food packaging materials due to the integrated advantages of excellent film-forming properties, biodegradability and appropriate mechanical properties. However, it remains a challenge to simultaneously endow antimicrobial, UV-shielding, water vapor and oxygen barrier properties of films. Herein, sustainable and multifunctional films were fabricated by constructing ε-polylysine (ε-PL) antimicrobial surface on the phenolated lignin/cellulose films (RCPL30). It is found that the fine control of electrostatic interactions and hydrogen bonding in anionic phenolated lignin/cellulose and cationic ε-PL is efficient for tailoring the structure and films performance. The addition of ε-PL effectively enhanced the antibacterial property , hydrophobicity, water vapor and oxygen barrier ability of the phenolated lignin/cellulose films. Antibacterial cellulose-lignin films with a high lignin content (30%) were developed. In particular, the bactericidal rate reached almost 100% when the ε-PL concentration was 3% (LRCPL30-3). The water vapor permeability and oxygen permeability of LRCPL30-3 were as low as (3.21 ± 0.06) × 10 −11 g m −1 s −1 Pa −1 , (4.15 ± 0.13) × 10 −16 cm 3 cm/cm 2 s Pa, respectively. Moreover, the phenolated lignin provided an exceptional UV shielding properties (100% for UVB and 99.91% for UVA for LRCPL30-3 sample) with high thermal stability and antioxidant activities . More importantly, the as prepared LRCPL30-3 still showed high tensile strength (75.90 MPa). Based on these outstanding properties, LRCPL30-3 were used for shrimp package, which effectively extended shelf-life. Overall, the study highlights the benefits of biopolymers valorization and provides evidence of potential applicability of sustainable films (specially LRCPL30-3) as candidates for active food packaging.
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CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Dongdong Liu,Xiuming Liu,Kuanjun Fang,Jixian Gong,Shuai Zhang,Xiran Qiao,Jinkun Wang,Tianning Wang,Enzheng Xing
The use of auxiliaries for textile dyeing and printing and the release of residual dyeing liquor cause enormous harm to the environment, while the single function of dyed fabrics hinders their development in more advanced fields. In this work, zeolitic imidazolate framework-8 (ZIF-8) nanocrystals were grown in situ on carboxymethyl cotton fabric to absorb acid dyes without auxiliaries. To further improve its durability and color fastness, polymethylhydrosiloxane (PMHS) hydrophobic coating was used to protect its surface. The as-prepared cotton fabrics exhibited a K/S value of 21.78, a hydrophobic angle of 160.2° and a UPF value close to 50+. They showed high stability under various environmental conditions, which provided a simple and enviromental way to prepare multifunctional dyed textiles. The high hydrophobic angle of the fabric offered excellent adsorption of oil agent in the oil–water mixture, and the oil–water separation efficiency can still reach more than 95% even after 20 cycles, indicating that the fabric also had promising applications in the treatment of oiled wastewater.
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