SEPARATION AND PURIFICATION TECHNOLOGY
·
2019
·
IF 5.107
Changlin Yu,Hongbo He,Wanqin Zhou,Zhen Liu,Longfu Wei
An interesting rugby-ball-like Zn 3 (PO 4 ) 2 @C 3 N 4 photocatalyst with well- controlled structures as high-efficient visible-light photocatalysts was synthesized via two steps of solvothermal-grinding calcination method. The composition, structure, morphology, and optical absorption properties of as-synthesized Zn 3 (PO 4 ) 2 @C 3 N 4 samples were intensively characterized by XRD, N 2 physical adsorption, SEM, TEM, FT-IR, UV–vis DRS, XPS, PL and photoelectrochemical measurements, respectively. The formation of C 3 N 4 shell obviously increased the surface area and induced the rich pore structures. The intimate interface between Zn 3 (PO 4 ) 2 and C 3 N 4 phase obviously enhanced the transport rate of photogenerated carriers and restrained the recombination of photogenerated electrons and holes. The optimal Zn 3 (PO 4 ) 2 @C 3 N 4 (35 wt%) exhibited the highest adsorption and photocatalytic activity in the degradation of methylene blue (MB), which was 150 and 7.5 times as high as C 3 N 4 , respectively. Moreover, the robust Zn 3 (PO 4 ) 2 @C 3 N 4 nanoheterojunctions fabricated by this grinding-calcination route have high stability in recycling reactions.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Xutao Ning,Qiao Peng,Bin Zeng,Xiaohai Deng,Linfang Li
A novel Ag 3 PO 4 /g-C 3 N 4 /Zn 3 (PO 4 ) 2 photocatalyst with ternary heterostructure and Z-scheme/type Ⅱ dual pathway mechanism was synthesized. Scanning electron microscopy and transmission electron microscopy data showed that Ag 3 PO 4 , Zn 3 (PO 4 ) 2 , and g-C 3 N 4 were in close contact, leading to the formation of the ternary heterojunction. Under simulated solar light irradiation, the Ag 3 PO 4 /g-C 3 N 4 /Zn 3 (PO 4 ) 2 photocatalyst efficiently degraded rhodamine B (RhB) and displayed much higher photocatalytic activity than pure Ag 3 PO 4 , g-C 3 N 4 , Zn 3 (PO 4 ) 2 , and Ag 3 PO 4 /Zn 3 (PO 4 ) 2 composite, exhibiting a RhB photodegradation efficiency of ∼91.2 % within 60 min. The quenching effects of different scavengers and electron spin resonance (ESR) experiments demonstrated that reactive h + and·O 2 − species played major roles in the photocatalytic reaction. It was elucidated that excellent photocatalytic activity could be ascribed to the Z-scheme/type Ⅱ dual carrier transfer pathways. Therefore, the formation of a ternary heterostructure system is an efficient method for separating charge carriers and retaining their redox capabilities.
研究领域:
材料科学
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环境科学
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光催化技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Yuzhu Qian,Xinni Li,Hongrui Wang,Ting Song,Yong Pei,Li Liu,Xianyou Wang,Qi Deng,Xiongwei Wu,Bei Long
Increasing insertion host materials are developed as high-performance anodes of “rocking-chair” zinc ion batteries. However, most of them show unsatisfactory rate capabilities. Herein, layered BiOIO3 is reported as an excellent insertion host and a zinc ion conductor, i.e., Zn3(PO4)2·4H2O (ZPO), is introduced to construct a BiOIO3@ZPO heterojunction with a built-in electric field (BEF). Both ZPO and a BEF obviously enhance Zn2+ transfer and storage, which is proven by theoretical calculations and experimental studies. The conversion-type mechanism of BiOIO3 is revealed through ex situ characterizations. The optimized electrode exhibits a high reversible capacity of 130 mAh g–1 at 0.1 A g–1, a low average discharge voltage of 0.58 V, an ultrahigh rate performance with 68 mAh g–1 at 5 A g–1 (52% of capacity at 0.1 A g–1), and an ultralong cyclic life of 6000 cycles at 5 A g–1. Significantly, the BiOIO3@ZPO//Mn3O4 full cell shows a good cyclic life of 67 mAh g–1 over 1000 cycles at 0.1 A g–1. This work provides a new insight into the design of anodes with excellent rate capability.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Pang Renze,Dong Xueyu,Wu Shaowei,Cheng Xinhua
High-performance 3D-Zn@Zn 3 (PO 4 ) 2 anode was constructed by a simple two-step strategy with 3D-Zn electrode prepared via electrodeposition followed by Zn 3 (PO 4 ) 2 protective layer decorated on its surface via chemical reaction exhibiting good universality. 3D-Zn@Zn 3 (PO 4 ) 2 anode demonstrated high hydrogen evolution overpotential and transference number of Zn 2+ besides low desolvation energy barrier and rapid transfer kinetics of Zn 2+ . Its symmetric cell could understand more than 1200 h at 1 mA cm −2 for 1 mA h cm −2 . When the anode was assembled into zinc-ion battery with MnO 2 cathode, it delivered specific capacity of 229.43 mA h g −1 at 0.1 A g −1 as well as exhibited remarkable rate capability and long-term cycling stability with capacity retention of 65.0% and Coulombic efficiency of 99.6% after 400 cycles under 1 A g −1 . The synergistic effect was studied between Zn 2+ -conductive hopeite layer and 3D-Zn electrode with (002) crystal plane orientation as well as three-dimensional (3D) microstructure as a template.
研究领域:
材料科学
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电化学
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储能
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电池技术
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2022
·Vol. 23
·期 19
·11853
·
IF 6.208
Zichao Wang,Pei Liu,Ziyi Fang,He Jiang
Immobilized enzymes are a significant technological approach to retain enzyme activity and reduce enzyme catalytic cost. In this work, trypsin-incorporated Zn3(PO4)2hybrid nanoflowers were prepared via mild precipitation and coordination reactions. The controllable preparation of hybrid nanoflowers was achieved by systematically investigating the effects of the raw-material ratio, material concentration and reaction temperature on product morphology and physicochemical properties. The enzyme content of hybrid nanoflowers was about 6.5%, and the maximum specific surface area reached 68.35 m2/g. The hybrid nanoflowers exhibit excellent catalytic activity and environmental tolerance compared to free trypsin, which was attributed to the orderly accumulation of nanosheets and proper anchoring formation. Further, the enzyme activity retention rate was still higher than 80% after 12 repeated uses. Therefore, trypsin/Zn3(PO4)2hybrid nanoflowers—which combine functionalities of excellent heat resistance, storage stability and reusability—exhibit potential industrial application prospects.Keywords:hybrid materials;trypsin;nanoflowers;controlled synthesis;catalytic performance
研究领域:
生物化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Ruoyu Di,Ruiyue Hang,Huanming Chen,Liwei Yang,Yuyu Zhao,Xiaohong Yao,Ruiqiang Hang
Infections and loosening remain two significant challenges in the clinical application of titanium (Ti) implants. Zinc oxide (ZnO) nanostructured coatings possess remarkable antibacterial properties and osteogenesis potential, but their instability-induced physiological toxicity needs to be improved. In this work, ZnO/zinc phosphate (Zn 3 (PO 4 ) 2 ) composite micro/nano-scaled flower-like structural coatings were constructed on Ti implant surfaces by magnetron sputtering combined with two-step hydrothermal treatments to address these concerns. The results showed that the composite micro/nano-structures became larger with the increase of the concentration of the second hydrothermal precursor (dipotassium hydrogen phosphate), while the coatings became more hydrophilic. In addition, the composite coatings exhibited excellent antibacterial properties, mediated macrophage polarization towards anti-inflammatory and pro-healing M2 phenotype, and promoted osteogenic differentiation of bone marrow mesenchymal stem cells. This surface modification strategy, which utilizes the partial conversion of ZnO to Zn 3 (PO 4 ) 2 to balance the antibacterial and cell-modulating properties of Ti implants, holds great promise for clinical applications.
研究领域:
生物材料学
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表面工程
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组织工程
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免疫调控
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骨科学
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纳米医学
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转化医学
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-12
·
IF 16.6
Wang Wei,Chen Shan,Liao Xuelong,Huang Rong,Wang Fengmei,Chen Jialei,Wang Yaxin,Wang Fei,Wang Huan
In situ formation of a stable interphase layer on zinc surface is an effective solution to suppress dendrite growth. However, the fast transport of bivalent Zn-ions within the solid interlayer remains very challenging. Herein, we engineer the SEI components and enable superior kinetics of Zn metal batteries under harsh conditions through regulating the sequence of interfacial chemical reaction. With the differences in chemical reactivity of trimethyl phosphate co-solvent and trifluoromethanesulfonate anions in the Zn 2+ -solvation shell, Zn 3 (PO 4 ) 2 and ZnF 2 are successively generated on Zn metal surface to form a gradient ZnF 2 –Zn 3 (PO 4 ) 2 interphase. Mechanistic studies reveal the outer ZnF 2 facilitates Zn 2+ desolvation and inner Zn 3 (PO 4 ) 2 serves as channels for fast Zn 2+ transport, contributing to long-term cycling at subzero temperatures. Impressively, the gradient SEI enables a high lifespan over 7000 hours in Zn symmetric cell and a capacity retention of 86.1% after 12000 cycles in Zn–KVOH full cell at –50 °C.
研究领域:
电化学
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材料科学
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电池技术
✓ 已验证
DOI
PubMed
高影响因子
Journal of Coatings Technology and Research
·
2022
·Vol. 20
·期 2
·587-601
·
IF 2.339
Lin Yating,Song Chunmei,Xiao Xiong,Wan Bo
Hydrophobically modified ethoxylated urethane (HEUR) with different structures was synthesized and confirmed by gel permeation chromatography, Fourier transform infrared spectroscopy and nuclear magnetic resonance ( 1 H NMR). We propose the relationship between the temperature insensitivity model and the thickening mechanism of HEUR/latex/Fe 2 O 3 /Zn 3 (PO 4 ) 2 /BaSO 4 suspensions. Meanwhile, the temperature insensitivity of HEUR/C suspensions is the result of two main associations: intermolecular interactions bridging the hydrophobic tails of HEURs and the hydrophobic groups tightly adsorbing onto the latex particle surfaces. A smaller ratio of viscosity (Rv) at 1 s −1 from the steady state condition indicates the better temperature insensitivity of viscosity. The higher degree of crystallinity and rheological activation energy corresponds to a great extent with better temperature insensitivity due to stronger association. The temperature insensitivity is consistent with the longer hydrophobic chain, which was proven by hysteresis tests and oscillatory shear measurements. The storage stability was enhanced in the lockstep with a hydrophobic length of HEUR, which is consistent with the rougher surfaces of HEUR/C films. As an appealing method, the results are meaningful and instructive for coating storage and application. Graphical abstract
An intermolecular network model of HEUR/C is presented, which suggests intermolecular associations in the bridging of hydrophobic tails and the hydrophobic groups adsorbing onto the latex particle surfaces. A temperature insensitivity mechanism model combined with rheology results and AFM is also proposed to clarify the relationship between temperature insensitivity and storage stability and the hydrophobic tail length.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）