ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Wei Cao,Waqar Ahmad,Maolin Yang,Yuhui Weng,Xiang Ji,Keli Yang,Jinqi Li,Wenhai Ji,Ping Miao,Feng Lin,Ming Zhang,Kejun Zhang,Jingchao Jiang,Ziwei Chen,Chengdu Liang,Jun Chen
Lattice defect-induced tuning of the chemical bonding environment is a promising strategy to enhance the performance of electrode materials. The deliberate introduction of oxygen vacancies (OVs) has demonstrated remarkable efficacy in boosting electronic conductivity and ion diffusion kinetics, while the resultant chemical bond engineering optimizes the bonding environment, thereby enhancing structural stability and electrochemical reversibility. This study pioneers a dual-modification strategy involving OVs -induced C-P bonds formation in the Zn 2 P 2 O 7 structure. Through systematic electrochemical characterization complemented by density functional theory (DFT) calculations, the synergistic mechanism between OVs-mediated electron structure modulation and C-P bonds reinforcement is elucidated. As a novel anode material for sodium-ion batteries, the engineered Zn 2 P 2 O 7−x @C composite exhibits substantially enhanced rate capability (316.6 mAh g −1 at 0.05 A g −1 ) and cycling stability (171.3 mAh g −1 after 1000 cycles at 1 A g −1 ), in stark contrast to the rapid performance degradation observed in pristine Zn 2 P 2 O 7 . Furthermore, the extension of this strategy to lithium-ion battery systems further validates the universal effectiveness of this defect/chemical bonding synergy strategy in improving alkali metal ions storage, demonstrating its broad applicability across various energy storage platforms.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
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IF 19
Xing Lai,Weiye Xu,Yukui Gou,Hongxiang Zhang,Jianying Huang,Weilong Cai,Yuekun Lai
Phytate (PhA) holds considerable promise for constructing molecular sieve membranes due to its high density of long-range electrostatic attractions, customizable charge density, and excellent polymer affinity. Herein, PhA-Fe 3+ complexes constructed by controllable coordination assembly are presented, based on metal-organophosphorus biphasic interfacial coordination reactions, and use the PhA-Fe 3+ complexes to regulate the interfacial polymerization (IP) process to generate polyamide (PA) nanofiltration membranes. The PhA-Fe 3+ complexes impart a high density of long-range electrostatic and short-range hydrogen bonding forces to the amine monomers and provide tunable charge densities through flexible metal-organophosphate coordination. Hydrogen bonding and strong electrostatic interactions spatially enrich the amine monomers and temporally slow down their diffusion into the hexane phase, as demonstrated by molecular simulations, resulting in a PA/PhA-Fe 3+ membrane with increased surface area, enhanced microporosity, lower thickness, higher water density near pores, and nanoscale spotted structures. Those structures are recognized as the key factor in achieving a water permeance of 19.2 L m −2 h −1 bar −1 , alongside a MgCl 2 rejection of 96.7% and a Li + /Mg 2+ selectivity of 24.1 (Mg 2+ /Li + mass ratio = 20), surpassing those of reported nanofiltration membranes. This PhA-Fe 3+ complexes-modulated IP strategy offers fresh perspectives for constructing a highly permeable membrane for lithium extraction from salt lake brines. Graphical Here, PhA-Fe 3+ complexes are synthesized through metal-organophosphorus biphasic interfacial coordination to modulate interfacial polymerization, yielding polyamide nanofiltration membranes. Molecular simulations confirm that hydrogen bonding and electrostatic interactions spatially confine amine monomers while retarding their diffusion into hexane, endowing such ultrathin PA/PhA-Fe 3+ membrane with enhanced microporosity, enlarged surface area, nanoscale spotted morphology, and optimized hydration layer density at the pore interfaces. The optimized membrane exhibits high permeability and stable Li + /Mg 2+ selectivity.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2024
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IF 4.9
Jin Yu,Xu Zhang,Hai Wang,Longcheng Liu,Yushan Zhou,Chengtao Yue
Water hyacinth is recognized as one of the top ten invasive weeds that pose significant environmental hazards globally. The resourceful utilization of water hyacinth offers substantial ecological benefits. In this work, water hyacinth is employed to synthesize a phosphorylated biochar for the efficient decontamination of uranium-containing radioactive wastewater, thereby achieving dual environmental benefits. The biochar with a large specific surface area of 1328 m 2 /g and a large pore volume of 0.94 cm 3 /g is obtained via carbonization of a freeze-dried water hyacinth-phytic acid composite. It possesses a high density of uranophilic phosphoric acid groups, with the surface phosphorus content reaching 0.78 at%. As anticipated, phosphorylated biochar demonstrates superior adsorption performance for uranium (VI) ions. The removal efficiency achieves 99 % in a uranium solution with an initial concentration of 100 mg/L at a dosage of 1.0 g/L within 30 minutes, while the maximum adsorption capacity reaches 478 mg/g. It is proficient in removing uranium across a pH range of 2.2–6.6 and exhibits tolerance under high ionic strength conditions. The distribution coefficient for uranium attains 28.5 L/g, which is significantly higher than that of many other metal ions. Moreover, the biochar is readily regenerated by elution with diluted HNO₃ and reused up to five times without any loss of efficiency. Delightfully, phosphorylated biochar effectively reduces the uranium concentration in actual nuclear wastewater from 16 μg/L to below 4 μg/L. The effective adsorptive decontamination of radioactive wastewater, followed by the incineration of spent biochar, significantly reduces the volume of radioactive waste.
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CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Fangyuan Xiao,Xiaoke Wang,Kaitong Sun,Qian Zhao,Cuiping Han,Hai-Feng Li
Corrosion and the formation of by-products resulting from parasitic side reactions, as well as random dendrite growth, pose significant challenges for aqueous zinc-ion batteries (AZIBs). In this study, phytate ammonium is introduced into the traditional dilute Zinc sulfate electrolyte as a multi-functional additive. Leveraging the inherent zincophilic nature of the phytic anion, a protective layer is formed on the surface of the zinc anode. This layer can effectively manipulate the deposition process, mitigate parasitic reactions, and reduce the accumulation of detrimental by-products. Additionally, the competitive deposition between dissociated ammonium ions and Zn 2+ promotes uniform deposition, thereby alleviating dendrite growth. Consequently, the modified electrolyte with a lower volume addition exhibits superior performance. The zinc symmetric battery demonstrates much more reversible plating/stripping, sustaining over 2000 h at 5 mA cm −2 and 1 mA h cm −2 . A high average deposition/stripping efficiency of 99.83 % is achieved, indicating the significant boosting effect and practical potential of our strategy for high-performance aqueous zinc-ion batteries.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Hong Zeng,Huihui Ma,Lina Xu,Jianliang Gao,Manqing Yan,Qiyang Wang
Conductive hydrogels with exceptional mechanical properties have received extensive attention in flexible strain sensors. However, there is still a huge challenge in the preparation of hydrogels with high toughness, conductivity and frost resistance performance. In this study, the prepared PA-PAAM-CS (PPAC) composite hydrogels were obtained by incorporating phytic acid (PA) and chitosan (CS) into poly(acrylamide- co -stearyl methacrylate) (PAAM) polymer network. The as-prepared PPAC composite hydrogel has exhibited good mechanical properties, good electrical conductivity, frost resistance and good strain sensitivity. The flexible strain sensor assembled by the fabricated PPAC hydrogel can be used to detect human motion, including small and huge human motion, showing good sensitivity and stability in a wide temperature range. Meanwhile, the hydrogels based pressure sensors as writing board have exhibited good sensitivity to tiny changes in writing various letters. Therefore, the prepared hydrogel will have broad application prospects in wearable devices, electronic skin and multifunctional sensor components.
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PubMed
高影响因子
ACS Applied Polymer Materials
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2024
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IF 4.4
Liyue Zhang,Jingkai Liu,Xiaoling Liu,Jinyue Dai,Xiaoqing Liu,Xiaosu Yi
Natural plant fibers, as green and lightweight alternatives to traditional fibers in fabricating green composites, have attracted much interest in recent years. However, their hydrophilic and flammable natures severely limit the interfacial adhesion and flame resistance of the composite, and the synchronous improvement of both remains a considerable challenge. Herein, a combined modifier consisting of a water-soluble benzoxazine (HGB) with high carbonization and phytic acid (PA) containing phosphorus elements and acid groups was devised to treat regenerated cellulose fabric (SF). The treated fabric (F-SF) not only could realize self-extinguishing from the fire, which helps to avoid the wick effects, but also exhibited an optimized interfacial property of the composites. After being combined with an intrinsic flame-retardant epoxy resin (F-EP), the composite material (F-SF/F-EP) achieved a V-0 rating in the UL-94 test and an excellent limiting oxygen index (LOI) value of 33.8% due to the flame-retardant effect in both the gaseous and condensed phases. Simultaneously, benefiting from the improved interfacial compatibility, both the tensile modulus and impact strength were enhanced from 9.82 GPa and 6.58 MPa to 11.29 GPa and 7.21 MPa, respectively, compared with untreated SF/EP composite, especially the interlaminar shear strength (ILSS) dramatically increased by 21.7%. This work provided an integrated strategy for synchronously enhancing interfacial compatibility and the fire-proof performance of plant fiber-reinforced composites.
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SCIENCE OF THE TOTAL ENVIRONMENT
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2025
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IF 8
Wenju Zhu,Shuang Xu,Xiaokang Yang,Kai Song,Shuixia Liu,Shuolong Wang,Wei Peng,Zhao Dai,Chunlei Jiang
Phytic acid's high-efficiency flame retardant and N-halamine antibacterial were synergistically applied to cotton fibers for durable antibacterial and flame retardancy. Antimicrobial flame retardant structures were characterized by H Nuclear Magnetic Resonance Spectra (NMR) and Fourier Transform Infrared Spectrometer (FT-IR). FT-IR, X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Microscope (SEM), Thermogravimetric (TG), Vertical Flammability Test (VFT), and Limiting Oxygen Index (LOI) were utilized to test and characterize the prepared cotton fibers. The results showed that the antibacterial flame retardant could be durably grafted on the surface of cotton fibers for a long time, and it still maintained its self-extinguishing property after 50 washing cycles, with an LOI value of 32.2 % and a damaged length of 67 mm. The N Cl bond was formed by simple bleaching treatment, which exhibited excellent bacteriostatic effect, and had a significant inhibitory effect on Escherichia coli and Staphylococcus aureus , and chlorine oxide, as an antibacterial factor, could be reactivated after long-term storage and washing. Through the systematic analysis of cone calorimetry and carbon residue, it was concluded that the flame retardant mechanism of antibacterial flame retardant was mainly condensed phase. The results of the physical property analysis of cotton fibers showed that the whiteness, air permeability, flexibility, and other physical properties of cotton fibers had no obvious change, while the hydrophilicity of the finished fibers were enhanced.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Chongming Wang,Sujie Shan,Zhengyu Yang,Xinpeng Xu,Xingning Huang,Xi Li,Songqi Liu,Boling Li,Yao Xu,Dapeng Li
Mounting evidence indicates that eliminating phosphate (P i ) alone is not enough to lower outbreak risks of undesirable algae, and synchronously sequestrating organic phosphorus species (OPs) dissolved in overlying water and residing in sediments cannot be ignored. However, more efforts were focused on the immobilization of P i than OPs because of insufficient understanding and analytical challenges. Herein, CaO 2 -loaded halloysite nanotubes/lanthanum-crosslinked sodium alginate (La-CaO 2 @HNTs/SA) hydrogel beads were newly developed and employed as a capping material for efficiently sequestrating P i and OPs from eutrophic water and sediment. Batch sorption results showed that the La-CaO 2 @HNTs/SA has a high uptake capacity towards P i (i.e., 44.05 mg-P/g) and Myo -inositol hexakisphosphate (IHP, a representative pollutant of OPs, 36.28 mg-P/g), and good selectivity for P in the presence of NO 3 – , Cl − , and HCO 3 – , profited by synergy of electrostatic attraction, inner-sphere complexation, surface precipitation, and partial degradation. After applying La-CaO 2 @HNTs/SA, P levels in overlying water could rapidly reduce from 0.95 to 0.01 mg-P/L within 120 min. Further thin-layer capping experiments (60 days) indicated that La-CaO 2 @HNTs/SA performed very well in immobilizing P i and OPs in overlying and pore waters and enhancing reductant-soluble P transformation (BD-P; ∼19 % to 11 %) to more stable HCl-extracted P (HCl-P; ∼33 % to 43 %) in sediments under continuous P input, with minor effect on benthic microorganisms. These findings advance the use of eco-friendly La-CaO 2 @HNTs/SA in eutrophication alleviation via simultaneous sequestration of P i and OPs.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Irfan Ijaz,Aysha Bukhari,Ammara Nazir,Ezaz Gilani,Hina Zain,Attia Shaheen,Mohammed Rafi Shaik,Mujeeb Khan
Designing effective adsorbents for adsorption of the threatening level of pharmaceuticals and personal care products (PPCPs) pollution is an immediate challenge for wastewater treatment. In the current work, molybdenum borides (MoBT x ) were first composited with silk fibroin (SF) through ultrasonic self-assembly. Then, the MoBT x @SF composite’s surface was modified with phytic acid (PA) to create MoBT x @SF@PA composite. The as-synthesized MoBT x @SF@PA adsorbent was developed to effectively remove indomethacin (IDM) and ceftriaxone (CEF). Due to the abundance of functional groups, highly exposed available active sites, and higher BET (Brunauer-Emmett-Teller) surface area (786.8 m 2 /g), MoBT x @SF@PA demonstrated an outstanding adsorption capability for IDM (549.89 mg/g) and CEF (959.18 mg/g), exceeding the earlier reported adsorbents. A kinetic study revealed that the interaction between the MoBT x @SF@PA adsorbent and PPCPs obeyed a pseudo-second-order model (PSO), implying that chemisorption controls the adsorption process. The Langmuir isotherm model and thermodynamic study indicated that IDM and CEF adsorption followed monolayer adsorption and were endothermic and spontaneous. Fourier-transformed infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) were used to explore the adsorption mechanism. Multiple hydrogen bindings, electrostatic interactions, high surface area, and porosity of the composite were primarily responsible for remarkable adsorption capacity. These results highlight a versatile approach for MoBT x -based adsorbent preparation with exceptional adsorption qualities appropriate for real-world PPCPc-polluted wastewater treatment.
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POLYMER DEGRADATION AND STABILITY
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2024
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IF 6.3
Jiaxin Li,Fan Xia,Ya Liu,Jianhua Wang,Xuping Su,Zhiwei Li,Haoping Peng
A flame retardant for rigid polyurethane (RPUF) was designed and synthesized to expand the application field of RPUF. The flame retardants, namely MXene/PEI/PA-L and MXene/PEI/PA-H, were synthesized using phytic acid (PA), polyethyleneimine (PEI), and MXene through layer-by-layer (LBL) self-assembly method and hydrothermal method , respectively. In terms of mechanical performance, MXene/PEI/PA-L imparted brittleness to RPUF while MXene/PEI/PA-H enhanced its toughness, enabling RPUF to adapt to diverse application scenarios. The flame retardant properties were evaluated via vertical combustion test, cone calorimetry test, and thermogravimetric test, and the gas phase flame retardant mechanism was analyzed by TG-FTIR. MXene/PEI/PA constituted a N-P-Ti synergistic flame retardant system. During combustion, MXene/PEI/PA formed a layered dense carbon layer to cut off the external oxygen transport channel and absorbed many oxygen-containing free radicals. MXene/PEI/PA-L demonstrated efficient smoke suppression capability, while MXene/PEI/PA-H showed superior thermal insulation performance. The ignition time (TTI) of the composite foam reached 47 s, the total smoke release (TSR) value decreased by 92 %, and the flame retardant grade reached 5VA. Coated RPUF had excellent flame retardant ability.
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Journal of Materials Chemistry A
·
2025
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IF 9.5
Xiao Wang,Jiahui Zhang,Xiaoting Li,Huiwen Yu,Lingcao Tan,Qiongyao Wang,Wenhua Xu,Baiping Xu,Shuping Xiao,Jiarong Huang
Shape memory polymers (SMPs) represent a prominent category of smart polymers that show attractive prospects in emerging fields of soft robots and biomedical devices. However, most of the existing SMPs show limitations in single-stimulus responsiveness and an imbalance between mechanical and shape memory properties. Herein, biological phytic acid served as a natural curing agent to vulcanize the biobased epoxidized natural rubber (ENR), while Fe3+ was introduced to construct a second cross-linked network based on coordination interaction. Polycaprolactone (PCL) was introduced and acted as net points to regulate the shape fixing behavior, while the dual cross-linked network provided strong resilience to achieve the shape recovery performance. Meanwhile, the Fe3+-based coordination complex not only served as sacrificial elements to realize tunable mechanical properties by effectively dissipating energy, but also acted as a photothermal agent to realize the light-induced shape memory behavior and thermoelectric power generation. The fabricated composites process multi-stimuli-responsive shape memory properties, photothermal capabilities, and tunable mechanical properties, exhibiting outstanding potential in harvesting sunlight for outdoor portable power generation and stimuli-responsive sensors.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Ying-Ming Li,Yao Deng,Hang-Ping Fang,Yi-Ran Li,De-Yi Wang
Designing flexible polyurethane foam (FPUF) with excellent flame retardancy, high mechanical performance, and good bacteriostatic activity via green approaches holds significant scientific value. In this study, a novel ionic liquid (IL) was synthesized from dopamine hydrochloride (DA) and phytic acid (PA), which was further combined with chitosan (CS) to fabricate an innovative biomass-based organic aerogel. For the 1CS-1IL/FPUF, it showed a 70.6 % reduction in peak heat release rate (PHRR), 66.3 % decrease in smoke production rate (SPR), and 48.4 % lower CO emission compared to pristine FPUF, effectively mitigating toxic fume and heat hazards during combustion. The limiting oxygen index (LOI) of 1CS-4IL/FPUF reached to 63.4 %. It was worth noting that the condensed and gas phase mutually functioned to the enhancement of flame retardancy of FPUF. In addition, the tensile strength and compressive strength of the 1CS-1IL/FPUF composite were 85.0 kPa and 41.0 kPa, representing increases of 20.7 % and 673.6 % compared to 78.7 kPa and 5.3 kPa of the neat FPUF, respectively. The modified FPUF also exhibited strong antibacterial activity against Staphylococcus aureus . According to above results, it provides a promising strategy to design multifunctional FPUF composites.
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危险品化学品经营许可证（带存储）