CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Zehao Wang,Huayu Chen,Yesheng Fu,Hang Yin,Dandan Yu,Junhui Liang,Yuexiang Huang,Liuqi Wang,Wei Gao,Da Chen,Yang Hou
Hydrogen production technology by water electrolysis highly relies on active and durable electrocatalysts for oxygen evolution reaction (OER). For Fe-containing electrocatalysts, the surface evolution during OER generally induces the dissolution of Fe into electrolyte. The excessive changed and dynamic surface quite puzzles the initial catalyst design, and moreover the excessive Fe loss could result in instability of the reconstructed surface, which might affect the formation of active species and the durability on the reaction interface. Here, we introduced a functional component of ethylenediamine-intercalated black phosphorus (eda-BP) to the Ni 1.5 Fe 0.5 B. Through electronic interaction between eda-BP and Ni 1.5 Fe 0.5 B, the excessive Fe loss during surface reconstruction process is effectively suppressed and the formation of Ni oxyhydroxide active species is facilitated, thereby enhancing the stability of the catalytic reaction interface. At the meantime, the ⁎ OH adsorption capacity on the reaction surface is regulated and the heterostructure catalyst exhibits significantly improved OER reaction kinetics. The Ni 1.5 Fe 0.5 B/eda-BP demonstrates a low OER overpotential ( η = 221 mV) at the current density of 10 mA cm −2 and sustainable activity. This work offers a facile strategy for improving the reactive interface for efficient and durable OER process.
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LANGMUIR
·
2025
·
IF 3.9
Fuhua Wei,Min Li,Qinhui Ren,Qin Zhang,Wei Shang,Diaodiao Zhang,Lanyan Tian,Zhao Liang
In this study, Fe/Zn-metal–organic frameworks (Fe/Zn-MOFs) were synthesized via microwave-assisted ball milling and characterized via Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, and nitrogen adsorption–desorption analysis. Fe/Zn-MOFs were highly effective in removing common organic pollutants. Experimental results revealed that Fe/Zn-MOFs exhibited excellent removal efficiencies, with maximum rates of 95.2 and 99.3% for levofloxacin hydrochloride (LH) and Congo red (CR), respectively. Additionally, Fe/Zn-MOFs exhibited remarkable adsorption capacities for CR and LH, with maximum values of 2806.5 and 77.8 mg/g, respectively. These results highlight the potential of Fe/Zn-MOFs as an effective material for the removal of organic pollutants.
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PubMed
高影响因子
Research
·
2025
·
IF 10.7
Chengjunyu Zhang,Sen Liu,Jianhui Zhang,Junlin Lu,Zehua Chen,Bolin Pan,Chu Liu,Ming Huang,Hengji Zhan,Hongjin Wang,Siting Chen,Kaiwen Jie,Baoqing He,Jingdie Wu,Ye Li,Haifeng Wang,Jing Zhao,Qiang Zhang,Xu Chen
Ferroptosis has promising potential for augmenting antitumor effects, but monotherapy with ferroptosis inducers in vivo has been reported to have limited efficacy in tumor management. The development of synergistic strategies with targeted capabilities is crucial for enhancing the antitumor efficacy of ferroptosis inducers. In this study, we designed and characterized a novel self-assembled nanomedicine by mixing ferrous ions (Fe 2+ ) and epigallocatechin gallate (EGCG) in a controllable manner and encapsulating the ferroptosis inducer RSL3, named Fe-EGCG@RSL3. This multifunctional nanomedicine effectively induces ferroptosis and growth inhibition in bladder cancer cells and patient-derived organoids. In vivo, Fe-EGCG@RSL3 was enriched in the subcutaneous tumors of allogenic and xenograft mouse models, thereby substantially overcoming RSL3 resistance. Intravesical instillation of Fe-EGCG@RSL3 controls orthotopic bladder tumor progression. Furthermore, nanomedicine potentiates the therapeutic effect of anti-programmed cell death protein 1 (PD1) immunotherapy by increasing the cytotoxicity of CD8 + T cells to cancer cells and modulating the proportions of both T-cell and myeloid cell subpopulations within the tumor immune microenvironment. Overall, Fe-EGCG@RSL3 has dual functions as a multifaceted nanomedicine that integrates ferroptosis induction with immunomodulation, offering a novel and clinically translatable strategy for bladder cancer therapy.
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Journal of Materials Chemistry A
·
2025
·
IF 9.5
Kaijin Guo,Mingliang Li,Yahao Liu,Zhihui Zhu,Mengfei Wang,Xuewen Tang,Guangming Zhu
In the oxygen evolution reaction (OER), the lattice oxygen mechanism (LOM) has the potential to exceed the theoretical overpotential limit of approximately 370 mV associated with the traditional adsorbate evolution mechanism (AEM). Therefore, it is crucial to promote lattice oxygen involvement in the OER through careful design. We prepared a self-supported NiFeV hydroxide pre-catalyst electrode using a one-step electrochemical deposition method. Most of the V in the pre-catalyst dissolved during electrochemical activation, as confirmed by various ex situ and in situ characterization studies. The actual catalyst comprised V-doped FeOOH and NiOOH. Notably, significant oxygen vacancies were generated due to V element dissolution and leaching. The reconstructed catalyst can facilitate oxygen production via both the AEM and LOM, supported by theoretical calculations and experimental validation. It operates steadily for 750 hours at a current density of 50 mA cm−2, requiring only 200 mV and 253 mV overpotentials to achieve current densities of 10 mA cm−2 and 100 mA cm−2, respectively. This work elucidates the electrochemical reconstruction of V-containing hydroxides in alkaline media under anodic conditions while providing valuable insights into developing high-performance catalysts that involve the LOM.
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Journal of Inorganic and Organometallic Polymers and Materials
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2025
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IF 4.9
Bai Yizhuo,Zhang Shiyu,Zhang Kaifan,Li Jiali,Zhang Jiehe,Hao Mingxu,Tao Haisheng
Nitro-functionalized NO 2 -MIL-53(Fe) was synthesized by modifying MIL-53(Fe) to enhance persulfate activation for the degradation of tetracycline (TCN). Comparative studies with NH 2 -MIL-53(Fe) and pristine MIL-53(Fe), it was found that NO 2 -MIL-53(Fe) is categorized as an ideal type I isotherm, without observable hysteresis loop. The introduction of nitro-group incorporation significantly increased specific surface area clocking in at 298.3 m 2 /g and an average pore diameter of 3.3 nm, created uniform micropores, and improved adsorption capacity. Structural characterization confirmed Fe(II) generation and electron transfer in NO 2 -MIL-53(Fe), enabling 82.1% TCN removal within 30 min. Radical (SO 4 ·− , ·OH, O 2 ·⁻ ) and non-radical ( 1 O 2 , charge transfer) pathways synergistically drove degradation, as evidenced by quenching experiments and EPR analysis. ESI-Q-TOF MS identified key intermediates, proposing plausible TCN degradation pathways. This study highlights the potential of nitro-functionalized metal-organic frameworks (MOFs) in advanced oxidation processes, emphasizing their enhanced catalytic activity and performance mechanisms, and provides new ideas for the remediation of pollutants in water bodies. Graphical abstract
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Advanced Sustainable Systems
·
2026
·Vol. 10
·期 1
·e01459
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IF 6.1
Shijiao Sun,Wei Chen,Qiuyang Dai,Pengfei Su,Jijun Tang,Jiaoxia Zhang,Long Lin
With the progress of society and the development of medical care, the abuse of antibiotics has become an environmental problem that cannot be ignored. In this work, a significant improvement in photocatalytic efficiency for tetracycline degradation was achieved through the design of a direct Z-scheme heterojunction In 2 S 3 /MIL-101(Fe), realized by precisely controlling the in situ growth of In 2 S 3 nanoblocks on octahedral MIL-101(Fe). MIL-101(Fe) and In 2 S 3 generate a strong built-in electric field to facilitate the efficient transfer and separation of photoexcited carriers. Furthermore, the enhanced specific surface area of In 2 S 3 /MIL-101(Fe) offers more active sites for catalytic reactions. Simulated sunlight-driven photocatalytic degradation experiments of tetracycline hydrochloride (TC) demonstrated a significant enhancement in the performance of the heterojunction photocatalyst. It achieved an 82.2% TC removal efficiency with a degradation rate constant of 0.0113 min −1 , representing 3.05 times and 4.52 times the performance of pure In 2 S 3 and MIL-101(Fe) materials, respectively. This study offers valuable insights into the design of efficient and stable metal-organic framework (MOF)-based heterojunction photocatalysts and holds promising potential for the remediation of antibiotic pollution.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 21.1
Jinhui Zhang,Jianglin Liu,Dalang Chen,Xiaofei Wang,Dongjie Yang,Xuliang Lin,Xueqing Qiu
The development of efficient and robust bifunctional oxygen electrocatalysts is crucial for advancing rechargeable zinc-air batteries. Although bimetallic composites are promising, conventional doping strategies often lack precise structural control. Herein, we report a sustainable synthesis of Co/Fe heterojunction catalysts from biorefinery lignin, incorporating low-cost Zn as a structural regulator. Zn spacers suppress CoFe alloy crystallization and promote Co 5.47 N formation, while Zn volatilization induces in situ carbon nanotube growth to enhance electronic structure and charge transport. The resulting Zn-CoFe@NLC catalyst exhibited favorable bifunctional performance, with a half-wave potential of 0.84 V for the oxygen reduction reactionand a high kinetic current density (17.2 mA cm -2 at 0.8 V). When implemented in zinc-air batteries, it achieved long cycling stability exceeding 1300 h (at 5 mA cm -2 ) and 1550 h (at 10 mA cm -2 ), more than 2.5 times that of noble metal catalyst (600 h at 10 mA cm -2 ). DFT calculations revealed that the CoFe-Co 5.47 N interface acted as an electron redistribution hub, synergistically enhancing the intrinsic activity of Co/Fe sites. This work underscores the promise of lignin as a sustainable precursor and establishes a generalizable route for rational structural engineering of bimetallic electrocatalysts for energy storage.
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IONICS
·
2022
·Vol. 29
·期 2
·505-518
·
IF 2.961
Yang Dongping,Xiong Deping,Feng Zuyong,Wen Kunhua,Wu Kaidan,He Miao,Feng Yefeng
Sn-based materials receive a lot of attention because of their high theoretical specific capacity, acceptable price, and good electrical conductivity. However, Sn-based materials have a large volume expansion in the circulation process, leading to the rapid decay of capacity. According to the ion diffusion time formula: t = L2/2D, where L is the diffusion length or the particle size, and D is the diffusion constant of the ions and the electrons. It can be seen that reducing the particle size can significantly improve the multiplier performance of the material. At present, the main methods for preparing nano-sized metal/carbon composites are the high-energy ball grinding method, hydrothermal method, calcined metal, and organic matter precursor. In this paper, sodium alginate was used as a precursor system for the Fe-doped Sn @3D carbon composite material, which was applied to the lithium-ion battery anode to obtain excellent electrochemical performance (1133.5 mAhg −1 after 200 cycles at 0.2 Ag −1 ). The increase in the specific surface area of Fe-doped Sn @3D carbon also increases the charge transfer efficiency and further improves the multiplier performance of the electrode. Meanwhile, the nano-size and structure can better buffer the volume expansion and protect the structure of the electrode.
研究领域:
材料科学
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电化学
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纳米材料
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能源存储
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功能材料
·
复合材料
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Erzhu Sun,Hong Li,Lanjie Xu,Shihao Zhang
In this study, NH2-MIL-101(Fe)/WO3 heterojunctions were prepared by solvothermal method and then incorporated into polyvinylidene fluoride (PVDF) membranes via phase inversion method to fabricate recyclable photocatalytic membranes with high degradation performance. The SEM and XRD characterization results indicated that NH2-MIL-101(Fe) and WO3 were physically combined. Using MB as the target pollutant, the membrane with 30 mg of Tungsten trioxide（WO 3 ） doping exhibited optimal degradation performance, achieving complete MB degradation within 100 min and a TOC removal rate of 85 %. During the degradation process, superoxide radicals (·O 2 − ), hydroxyl radicals (·OH) and photogenerated holes (h⁺), played a major role. The results of UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS) and photoluminescence (PL) spectra showed that the incorporation of WO 3 effectively suppressed the recombination of electron-hole pairs and enhanced visible light absorption, thereby improving the photocatalytic activity. Transient photocurrent response (i-t) and electrochemical impedance spectroscopy (EIS) tests further demonstrated that the composite photocatalyst with 30 mg of WO 3 exhibited the highest photocurrent density and the lowest charge transfer resistance. Degradation cycling experiments revealed that after four cycles of degradation, the PVDF photocatalytic membrane maintained high photocatalytic activity for MB. This study suggests that the combination of NH 2 -MIL-101(Fe)/WO 3 and PVDF membranes provides a promising new approach for exploring wastewater treatment solutions.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 3.9
Ai Xin,Zhang Xiao-Fei,Xu Yu-Lin,Li Ya-Fei,Zuo Xiao-Hua,Zhang Xiao-Lei,Wei Jie,Xie Quan-Wei
Iron-chromium redox flow batteries (ICRFBs) have emerged as a promising candidate for large-scale energy storage due to their cost-effectiveness, long cycle life, power-energy decoupling, and inherent safety. However, conventional ICRFBs using acidic FeCl₂ + CrCl₃ + HCl electrolytes face critical challenges, including severe material corrosion, active species cross-contamination, and parasitic hydrogen evolution reactions. To address these issues, we propose a neutral chelated Fe/Cr electrolyte system utilizing the identical ligand, 1,3-diaminopropanetetraacetic acid (DTPA), for both half-cells. This symmetric ligand design effectively suppresses metal ion crossover while enhancing redox kinetics, as confirmed by Fourier transform infrared (FTIR) and ultraviolet–visible (UV–vis) spectroscopy. The DTPA-complexed electrolytes exhibit high solubility (up to 1.0 mol/L) and environmental benignity, eliminating the need for corrosive acids. The resulting ICRFB demonstrates outstanding performance: a discharge energy density of 12.1 Wh/L, an average capacity decay rate of 0.13% per cycle over 300 cycles, and a coulombic efficiency approaching 100% at 50 mA/cm 2 , with a round-trip energy efficiency of 60%. These metrics are comparable to those of traditional acidic systems but with significantly reduced material degradation and operational risks. Our work validates the chelation strategy as a viable pathway to develop low-cost, long-lifetime ICRFBs, accelerating their practical deployment in grid-scale energy storage applications. Graphical
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ACS Applied Materials & Interfaces
·
2026
·
IF 8.2
Jing Wang,Weida Shi,Minghui Qiu,Juanjuan Wen,Xianfu Chen,Yiqun Fan
Ceramic tight ultrafiltration (UF) membranes exhibit excellent chemical and thermal stability. However, increased pore size and limited separation accuracy caused by high temperature sintering remain challenges in their preparation and application. In this study, a facile lattice-doping strategy using Fe-doped sol–gel precursors was developed to fabricate α-Al2O3 tight UF membranes. Fe incorporation effectively promoted the γ → α phase transformation at a reduced temperature (950 °C), suppressed grain growth, and produced smaller and more uniformly distributed pores with an average size of 5.5 nm. Increasing Fe content further enhanced surface hydrophilicity, corrosion resistance in biotic systems, and pure-water permeability (130 L·m–2·h–1·bar–1). Nevertheless, excessive Fe loading (>10%) resulted in phase separation and pore size heterogeneity. The optimized 10% Fe-doped α-Al2O3 membrane exhibited outstanding separation performance, achieving a BSA rejection of 99.9% and a permeance of 80 L·m–2·h–1·bar–1, nearly double the value of the undoped membrane. It also showed a significantly improved normalized flux and a flux recovery ratio exceeding 80%, demonstrating excellent antifouling capability. Similar antifouling and high removal were also observed in humic acid separation. These compelling features highlight its potential for efficient water purification applications.
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Desalination and Water Treatment
·
2026
·
IF 1
Yuqiong Gao,Qingqing Yang,Jiaxin Ma,Juxiang Chen,Cong Li,Naiyun Gao
This study employs the Fe(III)/CaSO 3 system to degrade ibuprofen (IBP) and elucidate the key factors and mechanisms. Negligible IBP degradation is observed when CaSO 3 and Fe(III) are applied individually, but their combination significantly enhances it. At initial pH 3, 40 μΜ Fe(III), and 200 μM sulfite, 92.2 % of IBP was removed within 20 min. Quenching experiments indicated that SO 4 •– , •OH, and 1 O 2 collectively governed the degradation of IBP in the Fe(III)/CaSO 3 system. Additionally, dissolved oxygen is essential in the system by initiating the radical chain reactions. The degradation of IBP by the Fe(III)/CaSO 3 system is influenced by key operational parameters and the water matrix. Typically, the process exhibits optimal Fe(III) and sulfite concentrations and initial pH, an activation energy of 51.2 kJ·mol -1 , and is inhibited by common water constituents like humic acid (HA), Cl⁻, Br⁻ and Mg 2+ . Integrated LC/TOF/MS and DFT calculations identified hydroxylation and decarboxylation as the primary pathways for IBP degradation, with bioassays confirming decreased antibacterial activity due to toxic products. Overall, our finding indicate that the Fe(III)/CaSO 3 system is effective for the oxidation of IBP, but the process parameters need further optimization to enhance IBP degradation efficiency and reduce potential environmental risks.
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