SCIENCE OF THE TOTAL ENVIRONMENT
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2020
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IF 6.551
Hao Lei,Daohui Zhou,Jiao Tang,Xiaoping Hu,Ning Pan,Hao Zou,Fangting Chi,Xiaoqiang Wang
A novel approach to synthesize phytic acid (PA) functionalized graphene oxide (P-pFGO-7) treated by the photo-Fenton reaction has been designed, which has been used as an adsorbent for efficient capture of U(VI) from aqueous solution. The structure and morphology of P-pFGO-7 were characterized well. The adsorption property for P-pFGO-7 was comprehensively assessed by batch experiments, showing the high adsorption capacity (266.7 mg/g, at pH = 4.0, T = 298 K), fast adsorption kinetics (~10 min), good selectivity for U(VI) and Ln-An ions in various coexisting ions and excellent regeneration capacity. With the assistance of various characterization techniques and batch adsorption results, it is found that PA makes the most contribution to coordinate U(VI) heavily depending on the P O moiety. P-pFGO-7 could be regenerated by 0.1 mol/L Na 2 CO 3 with ~95% desorption efficiency and reused well after five recycles. This present work provides a feasible route to modify graphene oxide and extend PA for potentially practical application in the removal of U(VI) from radioactive wastewater .
研究领域:
环境化学
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核科学与技术
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材料科学
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水处理技术
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放射化学
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纳米材料
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吸附科学
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DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Zhihao Zhang,Jinpeng Liu,Jinxu Teng,Junchao Huang,Yuhua Wang
As a biodegradable and non-petrochemical produced polymer, poly (vinyl alcohol) (PVA) films have great potential in packaging fields due to their excellent oil resistance, gas barrier capacity, and mechanical performance. Yet the high flammability of PVA films always draws the fire risks even at an instant contact with fire or voltaic arc, which is demanding the fireproof ability. The traditional method of adding inorganic flame retardants and organic phosphate ester will raise mechanical problems, opacity, and food toxicity that shall not be utilized in the future. Herein, we propose a multiple cross-linking method by introducing bio-based β-cyclodextrin (CD) and phytic acid (PA) to endow PVA composite film (PCP) the fireproof and antibacterial capacity and retain the mechanical properties and transmittance. The results indicated that due to the catalytic charring effect of PA and CD, the peak heat release rate and total heat release of PCP 0.25 decreased by 63.3 % and 38.8 %, respectively. The char residues increased from 6.1 to 32.1 wt% and reached to UL-94 V-0 rating. Thanks to the physically cross-linked network formed by CD and PVA and the chemically cross-linked network formed by PA and PVA, the tensile strength and elongation at break of PCP 0.25 increased from 61.6 MPa and 224.3 % for PVA to 87.6 MPa and 382.0 %, respectively. The transmittance of PCP 0.25 in the visible light range was almost identical to that of pure PVA. While its ultraviolet light transmittance was below 10 %, demonstrating excellent transparency and UV-shielding property. In vitro antibacterial tests, due to the abundant phosphate groups in PCP 0.25 , enzymes on the surface of bacterial cell walls could be deactivated, leading to bacterial lysis and death, thereby exhibiting inhibitory effects against both Escherichia coli and Staphylococcus aureus . Moreover, compared to the commercial food preservation materials, the composite film shows better water vapor barrier ability, which also shows excellent fire resistance, presenting the great prospective in food preservation.
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POLYMER
·
2026
·
IF 5.1
Huixiang Wang,Xinchao Yang,Jing Wang,Ya Lu
Flexible supercapacitors have emerged as promising energy storage devices, owing to their high power density and long cycle life. However, the development of electrode materials with high specific capacitance, superior electrochemical and mechanical stability remains a critical challenge. In this work, we report a facile strategy for fabricating cellulose nanofiber (CNF)-carbon nanotube (CNT)@polyaniline (PANI) nanocomposite aerogels via TEMPO oxidation, freeze-drying, and in-situ polymerization. The CNFs serve as a dispersive scaffold to uniformly distribute CNTs, forming a three-dimensional (3D) interconnected network, while PANI coats the CNF-CNT hybrid to construct a core-shell structure, enhancing pseudocapacitive performance. The resulting CNF-CNT@PANI aerogel exhibits a hierarchical porous structure with a high specific surface area of 121.4 m 2 g -1 and low density of 12.8 mg cm -3 . The assembled flexible supercapacitors deliver a high areal specific capacitance of 722.4 mF cm -2 at 2 mA cm -2 , long-term capacitive cyclic stability (86% capacitance retention after 3000 cycles), and remarkable mechanical stability (95.2% capacitance retention after 200 bending cycles). Additionally, the device achieves a maximum areal energy density of 99.5 μWh cm -2 at a power density of 1005.4 μW cm -2 , outperforming many reported PANI-based supercapacitors. This work provides a feasible approach for designing high-performance flexible electrode materials for next-generation energy storage systems.
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JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2026
·
IF 9.2
Wei Liu,Zhengtong You,Shiqi Qin,Zhipeng Hu,Jiaxin Mu,Zhijun Zhang,Yanjun Xie,Qingwen Wang,Charles U. Pittman
Developing sustainable carbon materials with both dye adsorption and electrochemical properties offers a promising strategy for carbon neutrality. Herein, a coupled carbonization strategy was employed to prepare porous carbon with high-level heteroatom doping and hierarchical pores, involving the co-hydrothermal treatment of wood flour with phytic acid and melamine, followed by K 2 CO 3 activation. Phytic acid and melamine act as P/N sources and structural builders, promoting hydrochar formation via phosphate coordination and condensation reactions, resulting in a stable cross-linked network rich in N, P, and O. The resulting N, P co-doped hierarchical porous carbon (NP-PC) exhibits an ultrahigh surface area (2792 m 2 g −1 , a 344 % increase compared to pure wood flour-derived carbon), suitable mesoporosity (36 %), and tailored surface chemistry (19.86 at% heteroatom content). At room temperature, NP-PC demonstrates an exceptionally high adsorption capacity for methylene blue (3028 mg g −1 after 6 h contact) and rapid adsorption kinetics (90 % removal within 5 min), outperforming most reported carbon-based adsorbents. NP-PC retains an adsorption capacity above 2500 mg g −1 even after five regeneration cycles. As a supercapacitor working electrode, NP-PC electrode also shows excellent electrochemical performance, delivering a specific capacitance of 380 F g −1 at 0.5 A g −1 and retaining 273 F g −1 at 25 A g −1 . This study achieves the conversion of low-value biomass into high-performance functional carbons, providing a sustainable solution for integrated environmental and energy applications.
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DOI
PubMed
高影响因子
Case Studies in Thermal Engineering
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2026
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IF 6.4
Lin Zhou,Zhe Wang,Qi Zhao,Wenwei Wang,Xianfeng Chen
Wheat dust poses a significant hazard to grain processing safety due to its high explosion sensitivity. To develop an inhibitor combining high-efficiency explosion suppression with environmentally friendly and edible properties, this study innovatively employed an aqueous phase condensation-freeze-drying method to successfully synthesize a phytic acid-adenine complex (PA-A) using naturally edible phytic acid (PA) and adenine as raw materials. Characterization analyses employing laser particle size analyzer, field-emission scanning electron microscopy with energy-dispersive X-ray spectroscopy (FE-SEM/EDS) confirmed the formation of a lamellar microstructure with highly dispersed phosphorus elements. The suppression effect of PA-A on a 300 g/m 3 wheat dust explosion was systematically investigated evaluated in a vertical tube combustion apparatus (1000 × 80 × 80 mm). Results demonstrated that increasing inhibitor concentration (0 vol%-12.5 vol%) progressively suppressed flame propagation, evidenced by color transition from bright yellow to dark red, morphological fragmentation, and discontinuity. Quantitative analysis revealed peak flame propagation velocity decreased from 27.6 m/s to 10.9 m/s (a reduction of 60.5 %), maximum temperature declined from 993 °C to 367 °C (a reduction of 63.1 %), and the maximum explosion pressure attenuated from 48.3 kPa to 20.1 kPa (a reduction of 59 %), with a significant delay (>80 %) in the time to reach these peak parameters. Comprehensive analysis based on Thermogravimetry-Differential Scanning Calorimetry (TG-DSC), X-ray Photoelectron Spectroscopy (XPS), and Fourier Transform Infrared Spectroscopy (FTIR) elucidated a multi-level synergistic suppression mechanism involving endothermic cooling, gas-phase dilution, surface isolation, and free radical quenching. This study provides a safe, environmentally friendly, and edible new strategy for controlling grain dust explosions.
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CARBON
·
2026
·
IF 11.6
Chunlei Chi,Guanwen Wang,Xinhou Yang,Bin Qi,Zhiyuan Li,Baoyi Mu,Zheng Liu,Tong Wei,Guojun Xu,Zhuangjun Fan
Hard carbon (HC) possesses large interlayer spacing, abundant defects, and porous structures, enabling efficient storage of large-radius K + ions. Nevertheless, its highly disordered nature renders the microstructure challenging to precisely regulate, which disrupts electronic conductivity and introduces irreversible active sites. Herein, conjugated poly(bithiophene) and phytic acid were employed as ligands to construct a lamellar precursor with reinforced interlayer support through Fe 3+ coordination and crosslinking. Upon optimized pyrolysis, the derived HC exhibits a high reversible capacity of 407 mAh g −1 , long-term cycling stability (1800 cycles at 1 A g −1 ), and excellent rate capability (200 mAh g −1 at 1 A g −1 ) in potassium-ion batteries. Thermogravimetry-mass spectrometry (TG-MS) analysis was conducted to investigate the structural evolution mechanisms of the precursor during pyrolysis. Furthermore, ex-situ characterization combined with density functional theory (DFT) calculations elucidated the intrinsic origin of the superior reversibility and activity associated with S–C and P–C doped configuration. These findings offer new insights into precursor engineering and controlled heteroatom doping for the development of high-performance HC anodes, providing both fundamental understanding and practical guidance for next-generation energy storage and conversion.
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GREEN CHEMISTRY
·
2026
·
IF 9.2
Yi Xu,Fanshu Yuan,Xiaotian Xie,Jinhui Tong,Cheng Min,Qian Zhang,Jie Tang,Jie Liu,Tingting Lv,Qianli Zhang
Activating lattice oxygen in oxygen evolution reactions (OER) serves as an effective strategy to overcome the inherent limitations of the traditional adsorbate evolution mechanism (AEM). Molybdenum dioxide (MoO2), which has attracted attention due to its high electrical conductivity and other metallic properties, exhibits excessive adsorption of oxygen-containing intermediates at its elevated molybdenum d-band center. This leads to the formation of stable Mo–O bonds, thereby hindering the lattice oxygen mechanism (LOM). This study demonstrates that phosphorus doping serves as a more direct strategy for intrinsic electronic structure modulation. DFT calculations predict that phosphorus doping effectively lowers the d-band center of molybdenum and softens Mo–O bonds, thereby enabling lattice oxygen participation in the reaction mechanism. Consistent with the computational results, experimental kinetic studies (e.g., pH-dependent experiments) and chemical probe tests confirm that P-MoO2 follows the LOM pathway. The prepared P-MoO2 catalyst exhibits an overpotential of only 247 mV at 10 mA cm−2 current density while maintaining stability for up to 100 hours. Furthermore, through various characterization techniques (TEM, XPS, in situ Raman spectroscopy), it was observed that the catalyst underwent significant potential-induced surface reconstruction during the reaction process, forming an amorphous MoO(OH)x layer rich in Mo5+. This reconstructed layer is considered the true active phase, where Mo5+ has been confirmed as the dominant valence state in the OER process.
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高影响因子
ACS Applied Polymer Materials
·
2026
·
IF 4.7
Kaili Gong,Lian Yin,Xiaodong Qian,Zilong Wu,Huafei Liu,Jie Zhang,Keqing Zhou,William W. Yu
The rapid advancement of portable electronics and wireless communication technologies has intensified electromagnetic pollution, creating a pressing need for lightweight, flexible, and safe electromagnetic interference (EMI) shielding materials. In this study, we developed a mechanically robust and flexible composite film by integrating MXene into an aramid nanofiber (ANF) matrix with dual-doped polyaniline (DPANI)-encapsulated MXene nanohybrids (MXene–DPANI, codoped with phytic acid and copper ions). The resulting ANF/MXene/MXene–DPANI (AMP) films exhibited high tensile strength, accompanied by superior fire resistance. Systematic evaluation revealed the superior EMI shielding performance of AMP films in the X-band range (8.2–12.4 GHz). Remarkably, a 30 μm-thick film with a 1:1 filler ratio of MXene to MXene–DPANI achieved an impressive EMI shielding effectiveness (SE) of 31 dB, surpassing commercial benchmarks. Further increasing the film thickness to 70 μm enhanced the EMI SE to 35 dB. Furthermore, optimizing the filler ratio to 3:1 (MXene:MXene–DPANI) significantly improved the EMI SE to 40 dB (30 μm thickness). The AMP films also displayed a controllable Joule heating performance, attaining a stable temperature of over 76 °C at 6 V with outstanding cycling stability. These findings underscore the potential of MXene-based nanofiller-decorated ANF composite films as high-performance EMI shielding materials for multifunctional applications.
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高影响因子
POLYMER BULLETIN
·
2026
·Vol. 83
·期 5
·215
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IF 4
Wang Song,Ma Rumeng
Coating polyethylene terephthalate (PET) fabrics by flame-retardant polyacrylate (PAc) is considered as a convenient and efficient method for improving the flame retardancy of PET fabrics. In this study, melamine (MEL) was reacted with phytic acid (PA), leading to the successful synthesis of a PA-based flame retardant, MP. Subsequently, aluminum diethylphosphinate (ADP) and MP were compounded at a mass ratio of 18:2 and incorporated into the PAc coating to prepare a flame-retardant PAc coating. When this flame-retardant PAc coating was coated to the surface of PET fabric, PET-ADP-MP 18:2 was obtained. The PET-ADP-MP 18:2 fabric exhibited excellent flame-retardant performance, achieved fire rating B 1 in the Vertical flammability test (VFT), with a limiting oxygen index (LOI) of 26.3%. Compared to the untreated PET fabric, the peak heat release rate (PHRR) was reduced by 70.81%. Moreover, the mechanical properties of PET-ADP-MP 18:2 were also improved. The tensile strength in the warp direction increased by 41.7%, while that in the weft direction increased by 57.7%. The flame retardant obtained by the combination of ADP and MP is therefore considered to hold significant potential for application in the field of flame-retardant PET fabrics (FR-PETs).
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.7
Wen Yu,Weizhou Chai,Zhenhua Chen,Haitao Li,Yu Qiao,Hangcheng Yang,Guiyin Xu,Hengda Sun,Yu Chen,Hongkang Wang
Na 3 (VO) 2 (PO 4 ) 2 F (NVOPF) has been recognized as a promising cathode of sodium-ion batteries (SIBs) owing to its high working potential and high energy density, but its practical application is hindered by the poor electronic conductivity and difficulty in structure regulation. Herein, we adopt the phytic acid (PA) as a new phosphorus source to chelate VO 2+ and Na + /F − ions under hydrothermal condition, leading to the successful fabrication of cuboid-like NVOPF with average length of 1.96 μm, while introduction of citric acid (CA) results in the formation of truncated cube-like NVOPF with uniform and smaller average length of 0.81 μm, which exhibits enhanced reaction kinetics and superior sodium storage performance. To overcome the poor conductivity of NVOPF, reduced graphene oxide (rGO) nanosheets are introduced during hydrothermal synthesis, leading to the formation of rGO-wrapped NVOPF microcubes (NVOPF/rGO) with tunable rGO contents. The optimized NVOPF/rGO demonstrates significantly improved electronic conductivity and excellent sodium storage performance, displaying a theoretically high reversible capacity of 130.3 mAh g −1 at 0.2C and outstanding cycling stability with a capacity retention of 100.0 mAh g −1 after 3500 cycles at 10C (corresponding a decay rate of 0.0043% per cycle). Operando synchrotron analysis reveals that Na 3 (VO) 2 (PO 4 ) 2 F undergoes complete solid solution reaction with V 4+ /V 5+ redox couples upon sodiation/desodiation, and the Na 3 (VO) 2 (PO 4 ) 2 F displays highly reversible lattice parameters with a small overall volume change of 2.28%, which almost completely recovers with a negligibly variation of 0.038%, indicating the robust structure stability of NVOPF. Moreover, the full cell with NVOPF/rGO cathode and hard carbon anode also demonstrates superior cycling stability for practical application.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 13.2
Qian Chen,Xiaoke Li,Size Zheng,Lie Zou,Wei Xie,Xinrong Huang,Hongbing Wang,Mingming Zheng,Yingtang Zhou
Solar-driven brine desalination faces two critical challenges: the high energy barrier of water vaporization and severe salt accumulation. To address these, we designed a lotus-seed-pod inspired hydrogel evaporator with a hierarchical structure and heterogeneous interface. By precisely patterning hydrophobic domains on a hydrophilic network on heterogeneous interface, the interface actively reconfigures hydrogen-bonding, enriching weakly bonded intermediate water and reducing the vaporization enthalpy by 26.6%. This thermodynamic advantage, coupled with synergistic thermal and solutal Marangoni convection, yields robust, self-regulating salt resistance. Consequently, the evaporator achieves a high evaporation rate of 2.82 kg·m −2 ·h −1 at 92.2% efficiency in 20 wt% brine, maintaining zero salt crystallization over 240 h of continuous operation. Numerical simulations further confirm that precise regulation of the spatial distribution, strength, and connectivity of hydrogen bonds simultaneously optimizes water transportation. This work reveals that bio-inspired interfacial design with patterned wettability and confinement domains lowers the phase-change energy barrier, enabling efficient, salt-resistant solar evaporation for sustainable water technologies.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Chengjie Sun,Yixin Luo,Mo Qiu,Qingxin Guan,Ruitong Ma,Zilu Zhang,Feng Shen,Shizhou Shen,Jirui Yang,Wei Li
Insufficient synergy between hydrolysis and hydrogenation seriously hinders the efficient conversion of insoluble cellulose in biomass utilization. Herein, using tobacco straw-derived lignin to prepare ordered mesoporous carbon (OMC), we report a complex-mediated strategy for constructing a Ni–P–O@NixP/OMC catalyst with tailored P–C–O doped sites and Niδ+–P–Oδ− frustrated Lewis pairs (FLPs). Characterizations and DFT results indicate that the P–C–O sites in a P/O-doped OMC support promote H2O adsorption and polarization, accelerating H3O+ generation for enhanced cellulose hydrolysis. Simultaneously, the Niδ+–P–Oδ− FLPs on the NixP surface promote H2 heterolysis and H2O dissociation, generating highly active Hδ+/Hδ– and H3O+ species that synergistically enhance hydrolysis and hydrogenation. Benefiting from the spatial coupling of hydrolysis and hydrogenation at the atomic scale, the prepared catalyst achieves an 80% sorbitol yield from cellulose in water at a low Ni loading of 4.5 wt %, along with satisfactory cycling stability. Increasing the Ni content to 8.0 wt % further raises the sorbitol yield to 89.5%, outperforming most reported noble-metal-based catalysts. Finally, a sorbitol yield in excess of 90% is obtained by using the residue after lignin extraction as the substrate. This work establishes a design paradigm for efficient cascade biomass conversion by creating atomic-scale P–C–O sites and Niδ+–P–Oδ− FLPs that enable spatially coupled hydrolysis and hydrogenation through tailored electronic structures.
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危险品化学品经营许可证（带存储）