INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Yao Hui,Rukuan Liu,Jingwen Lan,Liuzemu Li,Zhihong Xiao,Airong Xu,Xuefeng Wei
Eco-friendly and renewable sodium alginate, as a potential alternative to fossil resources, has attracted considerable attention in wastewater treatment field. Herein, we develop a SA/PEI/PEG (sodium alginate/polyethyleneimine/polyethylene glycol diglycidyl ether) adsorbent in which SA was functionalized by PEI/PEG via a facile but effective strategy of one-pot gelation of aqueous SA/PEI/PEG solution. Systematic investigations were accomplished to explore the effects of adsorbent factors on the adsorption performances of the adsorbent towards the anionic dyes CR (congo red), AB-10B (amido black-10B), and AB-25 (acid blue-25). Strikingly, the SA/PEI/PEG exhibited exceptional adsorption performance to CR (2782 mg g −1 , 90.6 %), AB-10B (1369 mg g −1 , 90.9 %) and AB-25 (4221 mg g −1 , 92.6 %) at 30 °C, pH = 3, 200 r min −1 and oscillated 24 h, and demonstrating exceptional reusability after six cycles of adsorption-desorption cycles. Furthermore, the three kinetic, four isothermic and one thermodynamic models were used to investigate the adsorption behaviors of the adsorbent towards these dyes. The possible adsorption mechanism is suggested: Hydrogen bond interactions and electrostatic attractions between SA/PEI/PEG and the dyes primarily contribute to exceptional adsorption capacity. The SA/PEI/PEG adsorbent endowed with easy fabrication, extraordinary adsorption capacity and excellent reusability promises potential application prospects in wastewater purification industry.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NANOTECHNOLOGY
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2024
·Vol. 35
·期 48
·485706
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IF 2.9
Dong Wang,Shaobo Yang,Song Yan,Yaxin Gu,Yi Fang,Chaochao Cao,Chengchun Tang
Antibiotics can easily enter the water environment through direct or indirect approach, causing environmental pollution and endangering the health of organisms. Therefore, development of highly efficient adsorbent materials to adsorb and remove antibiotics is necessary. Here, cobalt oxide and nickel oxide are uniformly and tightly bonded on the surface of porous boron nitride fibers (PBNFs-NiCo), increasing the number of functional groups (B–O and N–H) and hydrogen bond receptors within PBNFs. The total pore volume and specific surface area of resulting PBNFs-NiCo can reach up to 0.48 cm3 g−1 and 720.3 m2 g−1, respectively. Encouraged by the unique micromorphology and chemical composition mentioned above, PBNFs-NiCo exhibits excellent ceftriaxone sodium (CS) adsorption ability, showing the adsorption capacity and removal efficiency up to 410.9 mg g−1 and 96.5%, respectively. Chemical adsorption plays an important role in their adsorption behavior, abiding by Langmuir adsorption theory and pseudo-second-order kinetic equation. Importantly, PBNFs-NiCo exhibits fascinating adsorption effects in surroundings with pH ranging from 4 to 6, 25 °C and varying salt concentrations. This work would establish a practical and feasible foundation for the practical application of PBNFs-NiCo for CS adsorption in aqueous solution.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Enhao Liu,Yibo Zhu,Shengyong Gao,Junping Hu,Wei Feng,Jisheng Zhou
Achieving superconformal deposition of metallic sodium on 3D matrices is a critical challenge for sodium metal batteries (SMBs). Herein, flexible 3D carbon nanofiber films anchored with axial O-coordinated CuN 4 O 2 single-atom sites (CuN 4 O 2 -CNF) by a ZnCl 2 -mediated thermal activation strategy is designed. Unlike conventional planar CuN 3 configurations obtained without ZnCl 2 , the axial O in CuN 4 O 2 sites exhibits a high density of states near the Fermi level, modulating the electronic structure of neighboring Cu and N. This lowers Na + adsorption energy, accelerates charge transfer and enhances electrolyte permeability, enabling superconformal sodium deposition. As a result, the CuN 4 O 2 -CNF achieves an ultra-low nucleation overpotential of 10 mV, a coulombic efficiency of 99.92% over 8,000 h, and exceptional cycling stability exceeding 10,000 h in symmetric cells. The full coin cells paired with a Na 3 V 2 (PO 4 ) 3 cathode retain 89.5 mA h g −1 after 1,000 cycles at 1 A g −1 and deliver 80.3 mA h g −1 at 5 A g −1 , demonstrating superior rate capability. The pouch cells also maintain a stable capacity of 75.8 mA h g −1 after 150 cycles at 58.5 mA g −1 . These results highlight the transformative potential of axial-coordination for designing high-performance metal batteries, offering insights into interfacial dynamics and host architectures for next-generation energy-storage systems.
研究领域:
储能与转换
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材料科学
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电化学
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纳米材料
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电池技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
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2024
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IF 3.3
Shimei Zhang,An Wang,Zhaoxin Lu,Fengxia Lu,Haizhen Zhao
Background Millet bran (MB), a byproduct of millet production, is rich in functional components, but has a low utilization rate. In recent years, researchers have shown that fermentation can improve the biological activities of cereals and their byproducts. This study used Bacillus natto to ferment millet bran to improve its added value and broaden the application areas of MB. The bioactive component content, physicochemical properties, and functional activities of millet bran extract (MBE) from fermented millet bran were determined. Results After fermentation, the contents of soluble dietary fiber (SDF), β-glucan, polypeptides, polyphenols, flavones, and total amino acids increased by 92.0%, 164.4%, 111.4%, 32.5%, 16.4%, and 95.4%, respectively. Scanning electron microscopy revealed that the microscopic morphology of MBE changed from complete and dense blocks to loosely porous shapes after fermentation. After fermentation, the solubility, water holding capacity, and viscosity significantly increased, and the particle size decreased. Moreover, the glucose adsorption capacity (2.1 mmol/g), glucose dialysis retardation index (75.3%), and α-glucosidase inhibitory (71.4%, mixed reversible inhibition) activity of the fermented MBE (FMBE) were greater than those of the unfermented MBE (0.99 mmol/g, 32.1%, and 35.1%, respectively). FMBE presented better cholesterol and sodium cholate (SC) adsorption properties, and the adsorption was considered inhomogeneous surface adsorption. Conclusion Fermentation increased the bioactive component content and improved the physicochemical properties of MBE, thereby improving its hypoglycemic and hypolipidemic properties. This study will not only resolve the problem of millet bran waste but also promote the development of a higher value-added application method for millet bran. This article is protected by copyright. All rights reserved.
研究领域:
食品科学
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生物技术
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营养学
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生物化学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）