CONSTRUCTION AND BUILDING MATERIALS
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2026
·
IF 8.9
Shibo Zhang,Jun Xie,Shaopeng Wu,Sihui Peng,Derun Zhang,Fusong Wang
The rapid elimination of free calcium oxide (f-CaO) is critical for the large-scale utilization of steel slag (SS). To address this, an acrylic acid-vinyl phosphonic acid copolymer (AA-co-VPA) with high Ca²⁺ chelating capacity was utilized in this study. The chelation mechanism of AA-co-VPA with f-CaO and the modification mechanism regarding the microscopic properties and volume stability of SS were systematically investigated via SEM-EDS, XPS, FTIR, and CT scanning. On this basis, a systematic performance validation was conducted, spanning from aggregates and asphalt mastic to the asphalt mixture. The results indicated that AA-co-VPA exhibited exceptional Ca²⁺ chelation performance attributed to its unique bifunctional molecular structure, achieving a chelation capacity of 375 mg/g. At the optimal modification concentration of 1.0%, the immersion expansion rate of the AA-co-VPA modified steel slag (AAVPA-SS-1.0) significantly decreased from 3.76% for unmodified SS to 0.37%, and its f-CaO content was lowered to 0.44%. Microstructural analysis revealed that the proportion of micropores smaller than 100 μm in AAVPA-SS-1.0 was reduced by approximately 90%, leading to synchronous improvements in water absorption and mechanical properties. Rheological tests demonstrated that substituting mineral fillers with the filler (AAVPA‑SSP) prepared from AAVPA‑SS‑1.0 significantly enhanced the elastic recovery and high-temperature resistance to permanent deformation of the asphalt mastic. Finally, the resulting modified steel slag asphalt mixture (AAVPA-SSAM) exhibited excellent pavement performance, with an immersion expansion ratio of only 0.51%, far lower than the 2.82% of the asphalt mixture with unmodified steel slag (SSAM). While effectively addressing the volume stability issue, its water stability and high-temperature rutting resistance were superior to those of both the basalt asphalt mixture (BAM) and SSAM, and its low-temperature cracking resistance met specification requirements.
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Xin Jiang,Xiangting Yang,Huiqin Fei,Linfeng Zhang,Huadong Wu,Yoann de Rancourt de Mimérand,Xiaoyun Jin,Jia Guo
Cold plasma discharge, surface synthesis and 3D printing were used to fabricate supported photocatalysts. • Three different approaches were employed to immobilize QDs on a fractal polymer substrate. • One of the fabrication routes allowed obtaining a 1 O 2 -generating catalyst. • This hybrid catalyst was more efficient for the purification of water than the free QDs and easy to reuse. Owing to their quantum confinement, quantum dots (QDs) can efficiently generate singlet oxygen, a highly reactive oxygen species (ROS). Although promising for photocatalytic water remediation, their practical application remains limited. Their nanoscale dimensions render them more challenging to deploy than bulk heterogeneous photocatalysts; specifically, their separation and recycling are complex, and catalyst leaching poses a significant issue. In this study, we evaluated several chemical immobilization methods initiated by cold plasma discharge (CPD) to fabricate supported QD-based catalysts for the photodegradation of organic pollutants. Using CdS QDs as a model system, we probed their capacity to generate singlet oxygen. The resin substrates were fabricated by LCD 3D printing and microtextured with fractal architectures. Among the different immobilization strategies, the most successful employed a secondary nanostructured ZnO support to enforce a monolayer dispersion of the QDs. Subsequent in situ encapsulation by a metal–organic framework (MOF) further improved the photostability of the catalyst. This study provides valuable insights and new directions for the facile surface immobilization of functional QDs within controlled architectures for the efficient remediation of organic-contaminated water. Download: Download high-res image (89KB) Download: Download full-size image
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高影响因子
Journal of Cleaner Production
·
2026
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IF 10.7
Shichang Zhang,Zheng Qin,Zihang Yi,Weiping Liu,Lifeng Chen,Mohammed F. Hamza,Yuezhou Wei,Jie Yu,Shunyan Ning
Effective elimination of uranium (VI) from wastewater is critical to environmental remediation. Herein, a novel polyphosphonic acid-based ion exchanger PDVA/SiO 2 with spatially symmetric structure was designed and fabricated, and its adsorption behavior towards uranium in pH 4 solution was investigated at both mg/L and μg/L concentration levels using batch and column experiments respectively. The adsorbent could rapidly recognize and complex with uranium and reach adsorption equilibrium within 5 min, with the adsorption efficiencies of uranium in pure water, tap water, lake water and seawater were about 99.9%, 98.7%, 96.5% and 71.5% respectively. Uranium could be consistently and efficiently removed using a column separation device, with the concentrations in the purified solution less than 30 μg/L. The adsorption mechanism was dominated by ion exchange between UO 2 2+ and H + (in P–OH). Density functional theory (DFT) calculations demonstrated that the complex formed by the phosphate group with bi-deprotonated binding to UO 2 2+ possessed higher stability, and the binding process was accompanied by charge transfer and energy reduction.
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高影响因子
MACROMOLECULAR BIOSCIENCE
·
2026
·Vol. 26
·期 8
·e70229
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IF 4.2
Chanyuan Liu,Zhifang Li,Yujiao Jiang,Xuelan Hu,Xinpeng Yang,Yi Wang,Xiaoyi Cao,Haodi Qi,Jianfeng Zeng,Shuwang Wu,Xiaoming Li
Clinically small-molecule magnetic resonance imaging (MRI) contrast agents face limitations due to safety concerns, low relaxivity, narrow imaging windows, and restricted targeting capabilities. This study synthesized biocompatible nanogels via the polymerization of N-vinyl caprolactam and vinyl phosphonic acid. The nanogels containing phosphonic acid groups could tightly bind with Mn 2+ , which could improve the biosafety by preventing the release of free Mn 2+ . Meanwhile, the strong ligand effect improved the longitudinal relaxivity of encapsulated Mn 2+ to 29.8 mM − 1 s − 1 , which was roughly 3.5 times, 10.6 times, and 6.6 times higher than that of manganese chloride (MnCl 2 ), mangafodipir (MnDPDP) and gadolinium diethylenetriaminepentaacetic acid (Gd-DTPA), respectively. These nanogels exhibited the capability of targeting bone metastases and bone tissues in vivo owing to the phosphonic acid groups. Moreover, these nanogels-based contrast agents prolonged the effective imaging window due to the increased circulation time. They also exhibited a loading capacity for clinical hydrophobic drugs, such as atovaquone (ATO), thereby potentially improving the pharmacokinetics. This work highlights the prospect of poly(vinyl phosphonic acid) based nanogels as multifunctional nanoplatforms for diagnostic and therapeutic applications.
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高影响因子
MOLECULES
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2026
·Vol. 31
·期 3
·396
·
IF 4.6
Yan Lu,Sen Zhang,Hong-Yan Ge,Han-Yue Yang,Feng Zhang,Yi-Fan Pan,Hong-Zhen Lian
Protein phosphorylation is a crucial post-translational modification that regulates protein activity, cellular signaling, transcriptional regulation, and cell cycle control. However, the analysis of phosphoproteins in biological samples is often compromised by complex sample matrices and interference from high-abundance proteins. While the top-down phosphoproteomics strategy enables comprehensive analysis of post-translational modifications based on intact proteins, its requirement for higher protein purity due to low protein ionization efficiency poses stern challenges. Consequently, developing appropriate enrichment methods for phosphoproteins in practical samples becomes essential. Immobilized metal ion affinity chromatography (IMAC) represents a common strategy for phosphorylated protein separation and enrichment. Among metal ions, Ti4+has gained widespread application as IMAC chelating ligands due to its capacity to form multiple coordination networks and its high selectivity for phosphorylated protein enrichment, leveraging the strong chelating ability of phosphate groups toward metal ions. This paper presents the design and preparation of a novel magnetic Ti-IMAC nanocomposite, MNP@MPTMS–VPA–Ti(IV). The material is modified with phosphate groups via facile thiol-ene click chemistry and then immobilizes Ti4+, enabling selective enrichment of intact phosphoproteins through IMAC affinity. The efficiency of enrichment was evaluated using subsequent matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) for detection and analysis. This Ti-IMAC material-based magnetic solid-phase extraction (MSPE)-MALDI-TOF MS protocol has been successfully applied to enrich intact phosphoproteins in milk and eel mucus with high selectivity, sensitivity, and suitability.
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
·
IF 8.6
Xinyi Chen,Yunlong Wu,Ru Feng,Kai Yu,Jianming Pan
Hollow polymer microspheres (MPs) have attracted much attention in the field of separation science and technology due to their low density, high specific surface area, easy chemical modification, and abundant binding sites. However, traditional methods for preparing hollow microspheres typically involve surfactants and expensive templates, which are time-consuming and uneconomical, and are not suitable for large-scale production. Oil-soluble α-ethyl cyanoacrylate (ECA), a highly reactive monomer, has been employed to prepare hollow microspheres efficiently in the current study. Self-stabilizing encapsulation via fast interfacial polymerization of ECA would confer a special Pickering-like emulsion droplet reactor for rapid microcapsule formation. The ECA acts as both a monomer and a Pickering emulsifier during the reaction, in which case the newly formed polyECA (PECA) nanoparticles accumulate at the interface, forming a shell of PECA layer eventually. Excellent mechanical property of the PECA layers prevent droplets from coalescence, resulting in hollow PECA MPs after drying. To provide adsorption sites for chelating of uranyl ions, a water-soluble vinyl monomer grafted with ethylene phosphate (vinylphosphonic acid) was then introduced onto the non-reactive double bonds of the polyECA chain under mild reaction conditions, owning to the slightly amphiphilic nature of the PECA chain. The obtained adsorbent for uranium extraction is thus named as PECA-PO 4 3− MPs. Owing to the accessible affinity sites and hollow structure, PECA-PO 4 3− MPs displayed high adsorption capacities at pH = 7–9, showing remarkable selectivity for uranium even in the presence of various competition ions. Moreover, PECA-PO 4 3− MPs exhibited high stability as well as excellent recyclability toward uranium capture after five regeneration cycles. Therefore, this work not only presents a new clue to fabricate novel functional MPs in a high-efficiency way, but also provides a novel platform for efficient uranium extraction.
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高影响因子
RSC Advances
·
2022
·Vol. 12
·期 24
·15470-15478
·
IF 4.036
Zhao Yi,Li Junwen,Wu Sijin,Cheng Haiming
The important properties in the development of adsorbents for uranium extraction from seawater include specific selectivity to uranium ions and anti-biofouling ability in the ocean environment. In this paper, we report a novel strategy for efficient selective extraction of uranium from aqueous solutions and good anti-bacterial properties by surface ion-imprinted zeolite molecular sieves. Guanidine-modified zeolite molecular sieves 13X (ZMS-G) were synthesized and used as the support for the preparation of uranium(VI) ion-imprinted adsorbents (IIZMS-G) by ligands with phosphonic groups. The prepared IIZMS-G adsorbent was characterized via Fourier transform infrared spectroscopy (FT-IR), scanning electronic microscopy (SEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS). The results showed that guanidine groups have been successfully introduced onto the support while its morphology structure was maintained. The adsorption performance and selectivity to U(VI) ions, antibacterial property, and reusability of IIZMS-G were evaluated. The results showed that the maximum adsorption capacity reached 141.09 mg g−1 when the initial concentration of metal ions was 50 mg L−1 at pH 6 and 20 °C. The adsorption process followed the pseudo-second-order kinetic model and Langmuir adsorption isotherm model. The IIZMS-G exhibits an efficient selective adsorption of U(VI) ions from aqueous solutions with competing ions. In addition, the IIZMS-G exhibited excellent inhibitory effects on Escherichia coli and Staphylococcus aureus, and the inhibitory rate was 99.99% and 98.96% respectively. These results suggest that the prepared IIZMS-G adsorbent may promote the development strategy of novel high selectivity and antifouling adsorbents for uranium recovery from seawater.
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PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Deyu Wang,Yongfu Kang,Lei Lei,Yoann de Rancourt de Mimérand,Xiaoyun Jin,Jia Guo
In this study, we explore the potential of an innovative method based on cold plasma discharge (CPD), to fabricate stable supported photocatalysts for the photodegradation of organic water pollutants. Supported catalysts bear significant advantages compared to colloidal ones, the main benefit being that they can be separated from water and reused much more easily, which is a crucial aspect especially of nanocompounds. They can also participate in reducing catalyst loss between operations or even enable continuous-flow processes, usually more productive than batch, discontinued operations. Hereby, we describe an immobilization approach, i.e. in situ complexation-assisted precipitation (ISCAP), which allows the fabrication of nanoCdS photocatalyst, directly at the surface of a polymer substrate. More specifically, we establish the potential of this process to obtain a hybrid coating of zinc-doped CdS, in situ . Our findings revealed that the resulting supported catalyst was photoactive – degrading Rhodamine B (RhB) dye, easily recyclable and photostable thanks to the successful doping of the catalytic phase. In addition, it seems that the immobilization itself stabilized the catalyst, probably thanks to polyvinylphosphonic acid (PVPA), used as a complexing and binding agent. The catalytic phase was immobilized on a resin substrate that was fabricated by liquid crystal diode (LCD) 3D printing, and conceived using fractal-inspired geometry.
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高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 3
·477
·
IF 5.719
Xiaofei Yan,Jie Fang,Jianjun Gu,Chenkai Zhu,Dongming Qi
Poly(vinylphosphonic acid) (PVPA) and polyethylenepolyamine (PEPA) are used as novel intumescent flame retardants to improve the properties of MXene (2D Ti3C2Tx)/poly(vinyl alcohol) (PVA) nanocomposites. We investigated the flame-retardant properties, thermal stability, and mechanical properties of MXene/PVA nanocomposites. The results show that MXene was homogeneously dispersed in the PVA matrix containing PVPA and PEPA. PVPA and PEPA effectively improved the flame-retardant properties of MXene/PVA nanocomposites and they did not obviously change the thermal degradation of the MXene/PVA nanocomposites. Moreover, MXene improved the thermal stability of the PVA matrix. The elongation at break of MXene/PVA nanocomposites reached its maximum when the MXene mass fraction was 1.0 wt.%, regardless of whether PVPA and PEPA were present in the PVA matrix, whereas the tensile strength and Young’s modulus of MXene/PVA nanocomposites increased with the increase in MXene content in the PVA matrix.Keywords:flame-retardant properties;MXene/PVA nanocomposites;poly(vinylphosphonic acid);polyethylenepolyamine
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PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Deyu Wang,Kun Li,Cong Zhou,Lei lei,Yoann de Rancourt de Mimérand,Xiaoyun Jin,Jia Guo
In this study, we expose various techniques based on cold plasma discharge (CPD), and more precisely aqueous-phase plasma-aided grafting (APPAG), to efficiently modify the surface of polymers as well as fabric made of natural fibers. Several directions were investigated to ultimately add a functional coating providing an antimicrobial effect to textiles. Our strategy relies on the immobilization of silver nanoparticles (AgNPs) and Bi 2 MoO 6 (BMO) – a robust inorganic photocatalyst that can be activated by visible light – microflowers, at the surface of cotton fabric fibers. Notably, an in situ complexation-assisted precipitation route (ISCAP – an original method derived from CPD) was successfully employed to generate a very uniform coating of silver nanoparticles at the surface of organic substrates. As we demonstrate in this study, the surface functionalization with BMO and silver provides a significant protection against bacteria in dark conditions, through a bacteriostatic effect of nano silver, and under low-intensity artificial visible light (thanks to the photocatalytic effect of BMO/Ag), hence suitable for an indoor environment such as hospitals. Our composite nanomaterial, cotton/BMO/AgNPs, was assessed through antibacterial testing with Escherichia coli (E. coli) and Staphylococcus aureus (S. Aureus) , showing a pronounced antimicrobial effect with both strains. This study opens prospects for the functionalization of natural or artificial fiber materials with possible applications in the field of biomedical protective equipment such as bandages, masks or technical cloths; or even photocatalysis.
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高影响因子
Sustainable Energy & Fuels
·
2020
·Vol. 4
·期 6
·2859-2868
·
IF 5.503
Henghui Huang,Liwen Ni,Jiaoyan Xu,Xiaojun Xie,Li Zhang,Cheng Yang,Jiantao Fan,Hui Li,Haijiang Wang
Highly conductive and water-retentive vinylphosphonic acid-modified aminosilicon oxide cross-linked polymer/perfluorosulfonic acid (VPA-ASOCP/PFSA) membranes were prepared using PFSA solution and vinylphosphonic acid-modified (3-aminopropyl)triethoxysilane (VPA-APTES) as precursors. Spectroscopic and Energy Dispersive Spectrometer (EDS) analyses revealed that in situ generation of a VPA-ASOCP network was effectively achieved along with homogeneous dispersion of silicon backbones and phosphonic acid groups in the PFSA matrix. These composite membranes exhibited an increased water uptake and associated better conductivity at low and medium relative humidity (RH) compared to a pristine PFSA membrane and commercial Gore 740 membrane. The proton conductivity results showed that the VPA-ASOCP/PFSA composite membrane provided a proton conductivity of up to 24 mS cm−1 at 30% RH and 12.4 mS cm−1 at 10% RH, which were respectively 4.8 times and 10.3 times higher than those of the PFSA membrane and 4.5 times and 6.8 times higher than those of the commercial Gore 740 membrane on its own. In addition, the VPA-ASOCP/PFSA composite membrane exhibited superior fuel cell performance and low ohmic resistance across the entire humidity range for fuel cell operation, and the VPA-ASOCP/PFSA composite membrane provided a cell voltage as high as 0.672, 0.664, and 0.648 V at a current density of 1.0 A cm−2 when the RH was 50%, 20%, and 0, which were 50, 71 and 90 mV higher than those of the PFSA membrane and 34, 50 and 72 mV higher than those of the Gore 740 membrane. The water transport and small-angle X-ray scattering experimental results demonstrated that water transport was enhanced and new proton transport channels were formed when the VPA-ASOCP/PFSA composite was used as a proton exchange membrane (PEM). This new type of VPA-ASOCP/PFSA composite membrane is promising for developing PEMs that tolerate variations in humidity.
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高影响因子
ACS Applied Nano Materials
·
2020
·
IF 0
Kun Li,Yoann de Rancourt de Mimérand,Xiaoyun Jin,Jungang Yi,Jia Guo
Hybrid nanomaterials have been produced using a combination of core–shell synthesis, 3D printing, and plasma grafting. Metal oxides, that is, ZnO and TiO2, as well as iron-based metal organic frameworks (Fe-MOF) nanoparticles were grafted permanently onto the surface of 3D-printed fractal substrates via cold plasma discharge (CPD). The aim is to produce supported photocatalysts for the degradation of organic pollutants in water. Herein, different plasma grafting strategies are developed, namely direct (using core–shell prefunctionalization) and indirect grafting. Noticeably, the latter, using poly(vinylphosphonic acid) as an intermediate layer for self-assembly grafting, potentially opens the way for the functionalization of any polymeric surface by inorganic nanocompounds. This study mainly aims at giving insight into the plasma immobilization process, but also demonstrating the potential it offers in the domain of supported catalysis. The activity of the different hybrid materials has been assessed by monitoring the photodegradation of Rhodamine B dye (ZnO and TiO2) and the removal of Ciprofloxacin antibiotic (Fe-MOF). Also, the reusability of the hybrid photocatalysts has been demonstrated. Independently, it was found that modifying the surface of the metal oxide nanoparticles with organic coupling agents—aiming at their plasma-grafting immobilization on polymer supports—allowed enhancing their photodegradation efficiency up to 20%. Finally, a resin fractal support has been printed by liquid crystal diode-based SLA (stereolithography) and later surface-functionalized by Fe-MOF nanoparticles. This provides evidence to the possibility of using laser-based 3D printing technologies to produce supports with high surface area for the immobilization of catalysts by plasma grafting.
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危险品化学品经营许可证（带存储）