CATALYSIS LETTERS
·
2025
·Vol. 155
·期 7
·1-15
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IF 2.4
Yang Ji-Feng,You Deng,Zheng Li-Ying,Zhang Jin-Yang,Deng Lin,Luo Shen-Lian
Chloramphenicol (CAP), a broad-spectrum antibiotic extensively utilized in ocular and bacterial infection therapies, enters aquatic ecosystems predominantly through anthropogenic discharge pathways such as hospital effluents and wastewater systems, thereby posing substantial ecological and public health hazards. This investigation explores a sulfate radical-based advanced oxidation processes (SR-AOPs) leveraging FeSe 2 -activated PMS for effective CAP degradation. Experimental data reveal that FeSe 2 exhibits exceptional catalytic performance in PMS activation, attaining 83.9% CAP degradation efficiency under the optimum condition. Systematic parametric analysis identified pronounced operational dependencies on pH, catalyst dosage, and PMS concentration. Radical scavenging assays confirmed SO 4 ·− as the dominant reactive species, superseding HO· in degradation efficacy. The catalyst maintained superior recyclability across three successive cycles, exhibiting negligible metal leaching, a phenomenon likely attributed to synergistic Fe 2+ /Se 2− redox cycling mechanisms. DFT simulations coupled with LC-MS/MS analytical data pinpointed the C2 position as the principal reactive site, with degradation pathways encompassing hydroxylation, nitro-group reduction, and aromatic ring cleavage, culminating in complete CAP mineralization to CO 2 . ECOSAR predictive modeling indicated a significant reduction in ecotoxicological risks among transformation products relative to the parent compound. This study not only validates the FeSe 2 /PMS system as an sustainable solution for antibiotic-laden wastewater treatment but also elucidates mechanistic insights critical for metal selenide-driven SR-AOPs. Graphical
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Jiejing Yang,Nan Lv,Yuteng Zhang,Andong Zhao,Haifeng Zhang
FeSe 2 /MoSe 2 @TD-COF heterostructure with integrated photocatalytic functions. • TD-COF shell enhances light absorption and interfacial reactant enrichment. • FeSe 2 /MoSe 2 heterojunction regulates charge separation and electron transfer. • Functional integration markedly improves peroxymonosulfate activation efficiency. • Rapid TCH degradation dominated by ·O 2 - and SO 4 · - radicals. A rationally designed core–shell heterostructure (FeSe 2 /MoSe 2 @TD-COF) is constructed via in situ growth of an imine-linked covalent organic framework on a FeSe 2 /MoSe 2 heterojunction for efficient peroxymonosulfate (PMS) activation under simulated sunlight irradiation. In this core–shell architecture, the FeSe 2 /MoSe 2 heterojunction serves as a charge-separation and electron-regulation center, while the TD-COF shell enhances light harvesting, reactant enrichment, and interfacial confinement, thereby synergistically promoting interfacial charge transfer and PMS activation. The optimized FM-5@TD-COF-9 achieves 96% tetracycline hydrochloride (TCH) removal within 60 min, with degradation rates 43 and 2.88 times higher than those of FeSe 2 /MoSe 2 and TD-COF, respectively. Radical-trapping experiments, electron paramagnetic resonance (EPR) measurements, and liquid chromatography-mass spectrometry (LC-MS) analysis reveal that superoxide radicals (·O 2 - ) and sulfate radicals (SO 4 · - ) are the dominant reactive species, while photogenerated holes (h + ) plays a secondary role and hydroxyl radicals (·OH) contributes only marginally, leading to three plausible TCH degradation pathways. This work highlights an effective heterostructure-based strategy for interfacial catalytic regulation in PMS-activated photocatalytic systems. Download: Download high-res image (148KB) Download: Download full-size image
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Surfaces and Interfaces
·
2026
·
IF 6
Jiejing Yang,Ruxue Zhang,Nan Lv,Shirui Zhang,Cheng Liu,Yuteng Zhang,Haifeng Zhang
Piezoelectric catalysis has emerged as a promising strategy for efficient and sustainable environmental remediation. Here, FeSe 2 /MoSe 2 heterojunction nanocomposites are developed with significantly enhanced piezoelectric catalytic performance. The formation of a Z-scheme FeSe 2 /MoSe 2 heterojunction markedly boosts the degradation of Rhodamine B (RhB), enabling complete removal within 8 min. The corresponding kinetic rate constant reaches 148.5 L·mg⁻¹·min⁻¹, which is 14,850- and 565-fold higher than those of pristine FeSe 2 and MoSe 2 , respectively. This remarkable improvement arises from the synergistic coupling of the heterointerface and strain-induced piezoelectric polarization, which generates an internal electric field that promotes efficient charge separation, suppresses carrier recombination, and preserves strong redox activity. This work highlights the potential of piezoelectric heterostructures as a general strategy for mechanically driven catalytic processes. Download: Download high-res image (347KB) Download: Download full-size image
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FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
·
2023
·
IF 2.3
Huitao Li,Ning Lv,Xianrui Liu,Jinjuan Dong,Tianbao Li,Jujie Luo
In this work, FeSe2@CNT nanocomposite anode materials are fabricated using a convenient and efficient one-step microwave method. The FeSe2@CNT electrode exhibits superior electrochemical performance. The carbon nanotube structure effectively mitigates the severe volume change in the FeSe2@CNT electrode during continuous charge and discharge. Thus, the capacitance value of 573 F g−1 and capacitance retention of 81.9% for 3000 constant current charge and discharge cycles are achieved. In addition, the asymmetric device assembled with FeSe2@CNT as the anode and NiSe2@CNT as the cathode exhibits high Energy density (E can reach 41.32 Wh kg−1 when P is 800 W kg−1), and the device achieves 82.6% capacity retention after 3000 cycles.
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SENSORS AND ACTUATORS B-CHEMICAL
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2023
·
IF 8.4
Dandan Song,Xingge Huang,Minze Han,Xiaoyue Xu,Guoqiang Li,Xiaotong Wang,Yisong Zhao,Faming Gao
Selenides possess more electroactive unsaturated edge sites and superior redox activity, due to larger ionic radius together with low electronegativity of Se in comparation with sulfur and oxygen. However, mono-metallic selenides still suffer from the intrinsic limitations of low conductivity and electrochemical activity, which hinders their application in electrochemical sensor . Benefiting from the synergistic effects , bimetallic selenides exhibit relatively high electrical conductivity and electrochemical property. Moreover, heterostructure engineering is identified as an ingenious technology to endow materials with desired functions for developing high performance devices. Herein, a carbon-encapsulated bimetallic selenides (Bi 2 Se 3 -FeSe 2 @C) composite with lateral layered heterostructure was synthesized and employed as electrode material for electrochemical biosensing. The formed few-layered Bi 2 Se 3 -FeSe 2 @C lateral heterostructure with a large surface area possesses superb electrochemical properties and abundant immobilized sites toward acetylcholinesterase (AChE). The robust AChE-NF/Bi 2 Se 3 -FeSe 2 @C/GCE biosensor exhibited promising monocrotophos detection performance along with high sensitivity, a wide linear range (10 −5 ∼10 µg mL −1 ) and low limit of detection (1.51 ×10 −13 M).
研究领域:
材料科学
·
生物医学工程
·
分析化学
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Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 18
·11028-11037
·
IF 10.7
Shilin Zhou,Rui Jiang,Shige Wang,Lu Yu,Xiaoyan Shi,Lianyi Shao,Zhipeng Sun,Lifeng Hang
Metal selenides have aroused significant attention in the realm of efficient ion storage attributed to their exceptional chemical and physical properties, whereas their utilization in sodium-ion batteries (SIBs) is hindered by poor rate performance and cycle stability that originated from their substantial volume expansion throughout Na+ insertion/extraction procedures. This work proposes a productive approach to preserve the structure of the FeSe2 anode via in situ coating nitrogen-doped carbon (NC). The powerful interfacial interaction between FeSe2 micro-nanorods and NC facilitates fast Na+/e− transport kinetics and ensures excellent structural stability of FeSe2@NC. Consequently, FeSe2@NC exhibits a capacity of 379.2 mA h g−1 at a high current density of 10 A g−1 and up to 100% reversible capacity over 1000 cycles at 5 A g−1. Furthermore, the invertible Na+ storage mechanism of FeSe2@NC is investigated by ex situ methods. When FeSe2@NC is used as the anode and Na3V2(PO4)2F3@reduced graphene oxide is used as the cathode to assemble a full battery, it also exhibits a capacity of 167.2 mA h g−1 even after 1000 cycles at 1 A g−1. These exemplary results underscore the potential application value of FeSe2@NC in fast-charging SIBs.
研究领域:
材料科学
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电化学
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NANOTECHNOLOGY
·
2023
·Vol. 35
·期 5
·055404
·
IF 3.5
Chen Chen,Qilin Hu,Hongyu Xue,Han Li,Wenkai Li,Shuai Cao,Tao Peng,Ya Yang,Yongsong Luo
Transition metal selenides are considered as promising anode materials for fast-charging sodium-ion batteries due to their high theoretical specific capacity. However, the low intrinsic conductivity, particle aggregation, and large volume expansion problems can severely inhibit the high-rate and long-cycle performance of the electrode. Herein, FeSe2 nanoparticles embedded in nitrogen-doped carbon nanofibers (FeSe2@NCF) have been synthesized using the electrospinning and selenization process, which can alleviate the volume expansion and particle aggregation during the sodiation/desodiation and improve the electrical conductivity of the electrode. The FeSe2@NCF electrode delivers the outstanding specific capacity of 222.3 mAh g−1 at a fast current density of 50 A g−1 and 262.1 mAh g−1 at 10 A g−1 with the 87.8% capacity retention after 5000 cycles. Furthermore, the Na-ion full cells assembled with pre-sodiated FeSe2@NCF as anode and Na3V2(PO4)3/C as cathode exhibit the reversible specific capacity of 117.6 mAh g−1 at 5 A g−1 with the 84.3% capacity retention after 1000 cycles. This work provides a promising way for the conversion-based metal selenides for the applications as fast-charging sodium-ion battery anode.
研究领域:
材料科学
·
能源存储与转换
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Journal of Energy Storage
·
2025
·
IF 9.8
Xiao-liang Zhang,Jia-le Wang,Wan-ying Hou,Zhun Gao,Wen-chao Hou,Ya-hui Zhang,Shao-hua Luo,Qing Wang,Xin Liu,Sheng-xue Yan
This study centers on the synthesis and sodium-storage properties of CoSe 2 /FeSe 2 and its carbon-coated composite (CoSe 2 /FeSe 2 @C) derived from CoFe-based Prussian blue analogues (PBAs). The material offers high theoretical capacity for sodium-ion batteries (SIBs), but it suffers from severe structural degradation and poor electrical conductivity during cycling, leading to rapid capacity decay. Carbon coating is introduced to address these challenges by enhancing electronic conductivity, buffering volume changes, and improving ion diffusion kinetics. The CoSe₂/FeSe₂@C composite with a hollow nanostructure was obtained, which was prepared via co-precipitation, selenization, and carbon coating. Electrochemical measurements reveal that the composite boasts excellent electrochemical performance. It delivers a high reversible capacity of 443.5 mAh·g −1 at 0.1 A·g −1 , with 93.4 % capacity retention after 100 cycles, and 310.3 mAh·g −1 at 2 A·g −1 , maintaining 80.1 % retention after 500 cycles. The carbon coating significantly enhances conductivity, structural stability, and ion diffusion, endowing the material with superior cycling and rate capabilities. Through ex-situ XRD scanning and other characterization verifications, this work highlights the great potential of Prussian blue analogue (PBA)-derived materials as high-performance anodes for sodium-ion batteries.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2023
·Vol. 34
·期 6
·492
·
IF 2.8
Wang Xin,Wang Lianyang,Wang Da,Yu Zhaoxu,Liu Hengxu,Wu Mengling,Li Dongping
Transition metal selenides with high performance were thought to be viable electrode materials for alkali-ion batteries. By combining a simple hydrothermal technique with vacuum selenization treatment to generate FeSe 2 @3DGF grown on three-dimensional graphene foam backbone, a promising anode material for sodium-ion batteries was designed in this article. FeSe 2 @3DGF had good electrochemical properties, a large reversible capacity, and cycle stability. In particular, the FeSe 2 @3DGF electrode can provide a reversible capacity of 600.8 mAh g −1 for sodium-ion batteries after 300 cycles at a current density of 500 mA g −1 .
研究领域:
材料科学
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储能
·
电化学
·
纳米材料
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Zhiya Lin,Zhilong Wu,Hanyi Lin,Yidan Chen,Hai Jia,Quanlin Chen,Xiaohui Huang,Shaoming Ying
Heterostructured anode materials have garnered significant attention in recent years due to their ability to optimize interfacial structures between different components. This design not only facilitates the formation of stable solid-electrolyte interphase (SEI) films but also enhances the overall electrochemical performance, including battery capacity and cycle stability. In this study, a novel N -doped carbon-modified NiSe 2 /FeSe 2 heterostructure combined with carbon nanotubes (NC@NFS/CNTs) composite was successfully synthesized via co-precipitation and gas-phase selenization. This material was subsequently applied as an anode for Na-ion batteries (NIBs). Based on the synergistic effect of the interfacial properties of the heterostructure and the highly conductive nature of CNTs, the NC@NFS/CNTs composite exhibited excellent electrochemical stability and superior long-term durability. The battery retains a capacity of 332.4 mAh g −1 after 5000 charge/discharge cycles a current density of 5 A g −1 . Moreover, the capacity retention rate remains as high as 77 % even after 10,000 cycles at an ultra-high current density of 40 A g −1 . Ex-situ XPS and XRD analyses, along with low-temperature EIS tests, demonstrate that the Na + storage properties of the NC@NFS/CNTs electrode are significantly enhanced. This improvement is primarily attributed to the heterojunction structure and the presence of highly conductive phases (CNTs and N -doped carbon layers), which effectively improve the electrode’s kinetic performance and enhance the stability of the SEI film.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
·
IF 7.632
Wei Li,Yanli Niu,Xiuju Wu,Fawang Wu,Tianhao Li,Weihua Hu
Metal selenides attract great research interest as oxygen evolution reaction (OER) electrocatalysts. Herein, we report heterostructured bimetallic cobalt–iron diselenide nanoparticles with abundant vacancies and strong electronic coupling supported on carbon nanorod (CoSe2/FeSe2@C) as a highly efficient OER electrocatalyst. It is synthesized with a facile templating-engaged synthetic strategy and exhibits outstanding OER catalytic performance including high activity and good durability in alkaline medium. It affords a current density of 10 mA cm–2 at a low overpotential of 291 mV with small Tafel slope of 62 mV dec–1, which significantly outperforms the benchmarking RuO2 catalyst. The outstanding OER performance is found to be arising from its integrated advantages of the modulated electronic structure, abundant active sites, high electric conductivity, and large surface area endowed by its unique heterostructure and composition. This work exemplifies a feasible route to designing heterogeneous nanomaterials and enriches the OER electrocatalytic application of transition metal selenide-based hybrid materials.
研究领域:
材料科学
·
电化学
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CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Ming Xu,Yu Ma,Rong Liu,Huanhao Xiao,Liming Chen,Ziqiang Zhang,Lei Wang,Guohui Yuan
The electrochemical battery performance is largely determined by electron transport occurring in the electrode materials . The microsphere-structured transition metal selenides (TMSes) with high tap density are prospective anode materials for commercial sodium ion batteries (SIBs), however, they suffer from sluggish electron transport, leading to poor rate and inadequate cycle stability. Herein, a carbon nanotubes (CNTs) intercalation strategy is firstly proposed to enhance the electron transport kinetics in FeSe 2 microspheres via a facile method. In the obtained CNTs@FeSe 2 -C composite, the FeSe 2 microspheres composed of FeSe 2 nanoparticles feature high tap density and short Na + diffusion distances, while the CNTs networks enable pathways for fast electron transfer in the FeSe 2 microspheres. In consequence, the CNTs@FeSe 2 -C delivers high volumetric/gravimetric capacity (885.4 mAh cm −3 , 530.2 mAh g −1 ), an ultra-long lifespan (234.5 mAh g −1 after 10,000 loops at 10 A g −1 ), and a superior rate performance (57.8% capacity retention at the current density increase of 150 times). Ex-situ XRD, XPS, Raman, TEM and quantitative kinetics analyses are further conducted to reveal the energy storage mechanism underlying the enhanced electrochemical properties of CNTs@FeSe 2 -C. This work demonstrates that the proposed strategy could optimize metal selenides as commercial-value anodes for SIBs.
研究领域:
材料科学
·
电化学
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