NEW JOURNAL OF CHEMISTRY
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2026
·
IF 2.6
Kunpeng Xue,Heng Lin,Dan Cao,Na Ma,Wei Dai,Limin Zhang
The efficient removal of perfluorooctanoic acid (PFOA) is challenging, as conventional monometallic MOFs and powdered activated carbons suffer from limited active sites, poor stability, or unfavorable morphologies. Herein, a novel spherical porous carbon (SPC) derived from Cu/Zn-BTC bimetallic MOF was synthesized via glucose-assisted hydrothermal carbonization and high-temperature pyrolysis. Featuring high sphericity, uniform pore channels, and abundant bimetallic active sites, SPC exhibits enhanced PFOA adsorption performance and water stability. The optimized SPC (5-(Cu/Zn-BTC)) achieves a maximum adsorption capacity of 480 mg/g (surpassing most reported materials), with pseudo-second-order kinetics and spontaneous exothermic adsorption behavior. Synergistic mechanisms dominate the process: Cu2+/Zn2+-carboxylate coordination (XPS verified), acidic-condition electrostatic attraction (Zeta potential supported), and hydrophobic interactions. Notably, SPC retains high adsorption efficiency after five regeneration cycles due to robust structural stability. This work exhibits certain potential application value in the field of PFOA removal from aqueous systems.
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高影响因子
Materials Today Energy
·
2026
·
IF 8.1
Yifan Li,Hongshun Zheng,Tong Zhou,Hao Cui,Haigang Dong,Dongxia Yang,Ke Wang,Weijie Zhan,Boxue Wang,Yun Chen,Jize Li,Yuetong Cao,Zhikun Wang,Yumin Zhang,Jin Zhang,Qingju Liu
TiO 2 has emerged as one of the most extensively studied photocatalysts, because of its great stability and abundant availability. The hydrogen production efficiency of TiO 2 photocatalysts can be significantly enhanced derived from the precursors of titanium-based metal-organic frameworks (MOFs) loaded with single-atom. Although the hydrogen evolution activity of TiO 2 -based photocatalysts under ultraviolet light has been steadily enhanced in recent years, the activity under visible light remains a critical challenge to be addressed. Herein, we report a Zn single atom (Zn SA) loaded TiO 2 -based photocatalyst derived from Ti-BPDC (Ti-MOF). Under irradiation with visible light at 400 nm, the optimized sample exhibits a hydrogen evolution rate (HER) of 9.21 mmol g −1 h −1 with an apparent quantum efficiency (AQE) of 6.82%, with a HER approximately 3 times higher than that of pristine TiO 2 (3.14 mmol g −1 h −1 ), along with great stability. The results demonstrate that loading an appropriate amount of Zn SAs optimizes the band structure of the photocatalyst, activates the adjacent O atoms, and also suppresses the recombination of photogenerated electron-hole pairs, as well as modulates the adsorption-desorption equilibrium of H∗ species, thereby significantly enhancing photocatalytic activity. This work offers a strategy for designing TiO 2 -based photocatalysts with high visible-light activity.
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Journal of Energy Chemistry
·
2026
·
IF 14.9
Hanwei Hu,Leilei Sun,Guosheng Duan,Sinan Zheng,Zhean Bao,Dinghao Chen,Yang Wang,Jingyun Huang,Zhizhen Ye
Electrochemical activation (ECA) represents a powerful approach to unlock the high-capacity potential of vanadium oxide cathodes for aqueous zinc-ion batteries (AZIBs). The role of water in ECA extends beyond surface reactions, yet its underlying bulk-phase activation mechanisms remain largely unexplored. This work uncovers a previously overlooked stagewise ECA process regulated by the bulk-phase water penetration, involving concentrated oxidation and subsequent hydrolysis-induced phase transformation. Through a synergistic dual-ion engineering strategy, a model NaAl-VO 2 nanoflower precursor is constructed, where Al 3+ and Na + cooperatively tailor the morphology and (001) layer spacing. This design unlocks deep water reaction in VO 2 , triggering a pore-forming cascade reaction fundamentally distinct from traditional surface-limited activation. The bulk reaction mechanism facilitates rapid formation of highly active NaAl-H x V 2 O 5 nanonetworks, leading to a high specific capacity (571.3 mA h g −1 at 0.1 A g −1 ) and enhanced rate performance (239.5 mA h g −1 after 10,500 cycles at 20 A g −1 ). Ion-synergized regulation of water reaction depth can serve as a universal strategy for developing high-performance electrodes in aqueous electrolyte batteries.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121282
·
IF 7.2
Zijian Zhang,Bonan Liu,Li Yang,Jingwen Wang,Yuqing Dong,Chao Tang,Ping Wang,Haijiao Xie,Lei Zhang,Lu Zhang,Jun Zhao,Yu Fan,Wangjing Ma
Polystyrene (PS) waste recycling remains a critical challenge due to its high energy consumption and limited monomer yield. Herein, the b-ZnO catalyst with a few in-situ formed Zn sites at 270 °C under microwaves enhances the depolymerization of PS waste into monomers. To further improve the PS depolymerization over the b-ZnO catalyst, a series of Zn/b-ZnO catalysts with different metal Zn contents were prepared. Among these catalysts, the optimal 5Zn/b-ZnO achieves nearly 100 wt% PS conversion, yielding up to 0.997 g −1 PS liquid products with 0.8 g −1 PS styrene monomer in five cycles of experiment under microwaves. Such process greatly reduces the energy cost as compared with the conventional thermal process (0.51 vs. 0.81 kWh) and the obtained styrene monomer mixture can be repolymerized into fresh PS to complete a closed-loop recovery (80 wt% PS waste recycled). This work builds a novel microwave-assisted Zn/b-ZnO catalyst system for depolymerizing PS waste into monomers in a highly efficient way, which sheds a light on the sustainable recovery of PS waste.
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JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Jiayi Xu,Kongjun Zhu,Zhen Zhu,Penghua Liang,Zheng Zhang,Hongjuan Zheng,Jingsong Liu,Kang Yan,Jing Wang
Structural energy storage technology is a potential solution to reduce the weight of electrical energy storage systems. Zn ion fiber batteries are important for this technology given their flexibility, safety, and lightweight. As a component of fiber battery production, the structural design of fiber electrodes is caught in a dilemma. Fiber electrodes with core are difficult to prepare continuously, while fiber electrodes without core have unsatisfactory mechanical strength . Herein, a wet spinning method is used to prepare fiber electrodes with core continuously at a speed of 25 mm s −1 . Raw commercial vanadium pentoxide powders, acetylene black, and polyvinylidene fluoride are mixed into a slurry. A special tapered concave nozzle is designed to make the slurry saturate the core fully and be extruded well. Therefore, the fiber electrodes own a high ultimate tensile strength of 303 MPa and maintain the microstructure after 5000 bending cycles. The Zn ion fiber batteries exhibit a specific capacity of 134 mAh g −1 at 0.1 A g −1 after 100 cycles. This work shows a simple and efficient way to prepare fiber electrodes with core, which provides a new strategy for flexible electronic manufacturing and structural energy storage technology.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2022
·
IF 6.371
Xue Zhang,Ruijuan Qi,Shuai Yang,Hui Peng,Lin Sun,Pinghua Xiang,Pingxiong Yang,Fangyu Yue,Junhao Chu
Lead-free multiferroic composite ceramics, KNbO 3 -AFe 2 O 4 (KNO-AFO, A = Mg, Zn, Ni, Co), are synthesized. The microstructure and property characterizations reveal that the introduced AFO can intrinsically modulate the optical/ferroelectric/ferromagnetic properties due to the independent existence of the two phases in the composite ceramics, including the significantly narrowing of the optical bandgap from the intrinsic ~3.2 eV of KNO down to ~1.2 eV, of which the modulation behavior is in line with the prediction of the first-principles calculations, and more importantly, the maintaining of the excellent ferromagneticity (with a remnant magnetization value of 0.8 – 36.5 emu/g) and ferroelectricity (~1 – 4 µC/cm 2 ) but for slightly deteriorating of the leakage as compared to the anti-magnetic KNO. In addition, different spinel ferrites composited to KNO present different functions for the ferroelectric/ferromagnetic properties, i.e., the ortho-spinel phase mainly retaining the ferroelectricity of the composite ceramics while the anti-spinel phase responsible for the ferromagnetism , especially in the KNO-CFO ceramics that not only have the strongest narrowing effect of the optical bandgap but also demonstrate the most excellent magnetic properties . This makes the composite ceramics promising for a wide range of applications in ferric-based storage and photovoltaics , and should offer more options for the research of multifunctional materials and devices.
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JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Qun Chen,Liujun Cao,Haorui Wang,Zihan Zhou,Pan Xiao
Zn-ion hybrid capacitors (ZHCs) are considered promising electrochemical energy storage devices for flexible/wearable electronics. However, the unsatisfactory Zn 2+ ions energy storage capability of current carbon electrodes seriously restricts its development. Herein, we effectively increase the electrochemical active surface area (also introducing pores) of the carbon nanotube (CNT) fiber bundles electrode and simultaneously introduce oxygen/fluorine functional groups with abundant C–OH and semi-ionic C–F bonds on the CNT fiber bundles electrode for facilitating the chemical adsorption of Zn 2+ ions to produce pseudo-capacitance and enhance electrode kinetics , by adopting a simple electrochemical exfoliation and activation process in fluorine-containing solution. The prepared OFCNT-5 fiber bundles electrode achieves an ultrahigh areal capacitance of 1556.8 mF cm −2 (volumetric capacitance of 593.1 F cm −3 ), impressive long-cycling stability with capacity retention of 91.8% after 90,000 cycles. Moreover, the fiber-shaped Zn//OFCNT-5 device also delivers a high energy density of 553.53 μW h cm −2 (210.86 mW h cm −3 ), a high power density of 26.83 mW cm −2 (10.22 W cm −3 ), and outstanding anti-self-discharge capability. Our method also possesses a good universality and can extend to carbon cloth or carbon paper electrodes, and acts as one general strategy to design high performance of flexible carbon electrodes for ZHCs application.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 23
·1580
·
IF 2.8
Guo Zexuan,Wang Nan,Fei Xiaomiao,Yang Feng,Zhao Man,Peng Yanyan,Zhang Jing,Jiang Dayong
The generation, transfer, and collection of plasmon-derived hot electrons represent a distinctive pathway for photodetectors to utilize solar energy. However, previously reported devices have a low internal quantum efficiency due to excessively high Schottky barrier. The coupling distance between working medium and metal nanoparticles (NPs) is one of the key factors affecting the performance of optoelectronic devices. We constructed a dual-surface plasmon-enhanced (Mg, Zn)O-ultraviolet (UV) photodetector by applying Pt NPs and found that the assembled device exhibited broad sensitivity ranging from 340 to 370 nm at room temperature. Intense dual plasmonic resonance coupling is induced in a hybrid structure of two metallic layers separated by uniform ZnO-based films. Using surface plasmon-enhanced materials, the changes in the refractive index of ZnO/Pt/MgZnO and MgZnO/Pt/ZnO heterogeneous double-layer in the dielectric environment are beneficial for the tunneling of hot electrons. ZnO/Pt/MgZnO is superior to MgZnO/Pt/ZnO in terms of responsivity and response time. The responsivity of the ZnO/Pt/MgZnO device peaks at 2.87 A/W, exhibiting the great potential of dual plasmonic resonance coupling in a UV photodetector, which was finally investigated via Mie scattering. The response time of the photodetectors in a steady-state is 0.2 s, 0.3 s, while 0.1 s, 0.73 s is the response time of the photodetectors (PDs), which paves the way for future application advancements in the field of photodetection, imaging, photovoltaics, and photochemistry.
研究领域:
光电子学
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纳米光子学
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等离激元学
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半导体器件
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光电探测
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JOURNAL OF NON-CRYSTALLINE SOLIDS
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2024
·
IF 3.2
Taiyu Duan,Yao Ji,Weichao Wang,Qinyuan Zhang
The 1.0 μm ultra-short pulse laser is distinguished by its high energy, short pulse width, and intense peak power density, serving various applications in materials processing and biomedicine. Yb ions play a crucial role in this wavelength range, yet achieving high doping levels in commercial Yb-doped silica fibers is challenging due to their dense network structure. Here, we present the design and fabrication of a fluorophosphate (FP) glass with high thermal shock stability (figure of merit is 0.95), achieved through thermodynamic prediction methods, ion field strength analysis, and glass structure theory. By modifying the composition of high-field-strength cations, we not only alter the fundamental properties of the glass but also enhance its thermomechanical performance. Specifically, Yb 3+ -doped Zn(PO 3 ) 2 -Ba(PO 3 ) 2 -AlF 3 -KF FP glass (Yb 10 -ZBAFP10) exhibits a high emission cross-section (0.74×10 −20 cm 2 at ∼1008 nm), a low level of minimum population inversion ( β min =0.09), and minimum pump intensity ( I min =1.75 kW/cm 2 ). Furthermore, it demonstrates a stable fluorescence lifetime within the temperature range of 298 ∼ 473 K. These findings highlight the potential of Yb 3+ -doped FP glass for applications demanding high thermal shock stability, particularly in high repetition rate ultra-short pulse laser systems.
研究领域:
光子学
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材料科学
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激光技术
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玻璃物理
·
光学材料
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 13.2
Jiacheng Li,Xiuli Li,Yan Zhou,Wentao Chen,Wenqi Wang,Jinmin Wang,Dongyun Ma
Dual-band electrochromic smart windows (DESWs) can realize multi-band regulation of solar spectrum, thereby playing a crucial role in achieving building energy conservation. However, independent control of visible (VIS) and near-infrared (NIR) lights for more intelligent indoor comfort is still a significant challenge. Herein, we present an innovative electrochromic smart window design employing a dual-cathode system of ultra-thin (∼80 nm) poly (3,4-(2,2-dimethylpropylenedioxy)thiophene) (PProDOT-Me 2 ) electrode and nanoporous Nb 18 W 16 O 93 electrode with a shared Zn anode, where PProDOT-Me 2 and Nb 18 W 16 O 93 electrodes are used for VIS and NIR control, respectively. Therefore, the Nb 18 W 16 O 93 /Zn/PProDOT-Me 2 device displays four distinct states with multiple color variations, including “bright” (colorless), “cool” (light blue), “warm” (blue-purple) and “dark” (dark blue). Unlike conventional cathode/anode complementary systems, the reversible switching between “bright” and “dark” states can be achieved through simultaneously tuning the color of PProDOT-Me 2 and Nb 18 W 16 O 93 cathodes by Zn anode, which reduces the switching voltages to −1.0 and 2.0 V in organic electrolyte, thereby achieving an excellent cycle performance. Moreover, potential differences between Zn anode and PProDOT-Me 2 /Nb 18 W 16 O 93 cathodes enable the device a self-operation mode by directly connecting the two electrodes with Zn anode, further decreasing energy consumption. This design offers a novel strategy for constructing DESWs with independent VIS and NIR regulation, thereby advancing the application of electrochromic technology in building energy conservation.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 9
·596
·
IF 5.4
Wang Wenzhuo,Lu Juan,Jiang Hanyue,Han Pengfei,Ma Guangping,Li Ruixin,Mao Huiyuan,Ma Tengying,Wang Jing,Chen Ruizhan,Tian Li
A dual-mode sensing platform has been developed for ultrasensitive malathion (MAT) detection based on bifunctional rGO@ZnO/Zn-Fe 3 O 4 composites (reduced graphene oxide-supported ZnO nanorods and Zn-doped Fe 3 O 4 microspheres). The rGO@ZnO/Zn-Fe 3 O 4 nanozyme is fabricated via a one-pot hydrothermal strategy and integrates favorable electrochemiluminescence (ECL) emission and intrinsic peroxidase-mimicking activity to realize dual-signal readout. In the K 2 S 2 O 8 ECL system, Au NPs@UiO-66 serves as a coreactant booster to further magnify the ECL intensity of the composite. Meanwhile, the nanozyme catalyzes the H 2 O 2 -mediated oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) to produce a colorimetric response. MAT suppresses both ECL and colorimetric responses by occupying Fe 2+ /Fe 3+ catalytic sites and scavenging of reactive radicals. The sensor achieves limits of detection as low as 2.8 × 10 –13 mol/L under ECL mode and 1.32 × 10 –6 mol/L under colorimetric mode. In practical testing of MAT-spiked vegetable samples, the sensor exhibits acceptable recoveries and low relative standard deviations, demonstrating its practicability for field food safety supervision and rapid pesticide residue screening. Graphical abstract
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IONICS
·
2026
·
IF 3.4
Xie Shanshan,Chen Xiaotong,Li Xiaogang,Cheng Lanlan,Wu Rui,Li Jun,Wang Zongnan,Tu Huan,Xue Yutao,Yuan Aihua
Aqueous zinc-ion batteries (AZIBs) have emerged as promising candidates for next generation energy storage systems, benefiting from their high intrinsic safety, cost-effectiveness, and environmental benignity. However, practical applications of AZIBs are severely hindered by critical issues of poor reversibility, dendrite growth, interfacial corrosion, and the hydrogen evolution reaction (HER). Herein, trifluoroacetamide (TFA) is proposed to optimize the Zn²⁺ solvation configuration and stabilize the anode interface to suppress dendrite growth. In contrast to prior strategies relying on a single fluorine source (BF₄⁻or inert anions), this work uses BF₄⁻ and the -CF 3 group of TFA as dual fluorine sources for synergistic organic/inorganic interfacial regulation. ATR-FTIR, Raman, and NMR spectra show that TFA effectively modulates the Zn 2+ solvation structure, and XPS depth profiling confirms the formation of a dense hybrid SEI consisting of inorganic ZnF 2 (from BF₄⁻) and organic fluorides (from -CF 3 ). Comprehensive electrochemical and physical characterizations reveal that the 1 M Zn(BF₄)₂-5% TFA exhibits a minimum contact angle of 45°, which remarkably enhances the wettability Zn/electrolyte interface, enables uniform Zn deposition, and promotes stable three-dimensional diffusion kinetics. The Zn||Zn symmetric cell assembled with the same electrolyte delivers excellent long-cycle stability (≈ 360 h at 1 mA cm⁻² and 0.5 mAh cm⁻²) and high critical current density (12 mA cm⁻²). This work elucidates the pivotal role of TFA in modulating interfacial ion transport and Zn deposition behavior, furnishing a viable strategy for the construction of highly reversible zinc-based batteries.
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