MICROPOROUS AND MESOPOROUS MATERIALS
·
2025
·
IF 4.7
Jian Luo,Yonghui Lin,Yanfeng Liu,Siliang Wang,Yiduo Chen,Xudong Tian,Weiting Yang,Zhongmin Su
Roxarsone (3-nitro-4-hydroxyphenylarsenic acid, ROX) is easily converted into highly toxic inorganic arsenic compounds, therefore, the development of highly efficient adsorbents for the removal of ROX from wastewater is necessary but remains challenging. In this study, NH 2 -MIL-101 (Fe) was synthesised and modified with TPA-CHO (4-(N, N-diphenylamine) benzaldehyde) to obtain TPA-MIL-101(Fe) with triphenylamine functionalised groups. The modified TPA-MIL-101(Fe) exhibits the very high adsorption capacity (728.2 mg g −1 ) and fast adsorption equilibrium (2 h). The TPA-MIL-101(Fe) showed excellent selectivity, and the adsorption efficiency hardly decreased in the presence of competing ions (Cl − , NO 3 − , SO 4 2− ). The TPA-MIL-101(Fe) showed good adsorption performance for ROX at pH 3–13, with the best performance at pH = 9. In addition, TPA-MIL-101(Fe) was able to remove trace amounts of ROX from actual water samples (<5 mg L −1 ) with an efficiency of 99.46 %, and the remaining ROX content meets the international drinking water standards of the World Health Organization (29 μg L −1 ). The mechanism studies have shown that the Fe-O-As coordination and the π-π stacking interaction between TPA-MIL-101(Fe) and ROX greatly enhance its adsorption performance. In conclusion, this work provides a promising material for effective removal of ROX from the environmental water.
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DOI
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-14
·
IF 36.3
Zhong Yihong,Yuan Guotao,Bao Dequan,Tao Yi,Gao Zhenqiu,Zhao Wei,Li Shuo,Yang Yuting,Zhang Pingping,Zhang Hao,Sun Xuhui
The heteroatom atomically doping strategy was reported to construct highly
efficient sites on metal oxides for the detection of low-concentration gas.
The atomically dispersed Sn atoms were intentionally incorporated into the Fe 2 O 3
lattice during the oxidative annealing of Fe-based metal organic framework,
leading to specific Sn–O–Fe sites, porous structures, and abundant oxygen
vacancies.
The optimized Sn-Fe 2 O 3 exhibited exceptional sensing performance for NO 2
detection: ultra-high sensitivity ( Rg / Ra =2646.6 to 1 ppm NO 2 ), ultra-low limit of
detection (10 ppb), and high selectivity.
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DOI
PubMed
高影响因子
Energy & Environmental Science
·
2024
·Vol. 17
·期 20
·7958-7968
·
IF 32.4
Yaoshen Niu,Zilin Hu,Huican Mao,Lin Zhou,Liguang Wang,Xiaobing Lou,Bo Zhang,Dongdong Xiao,Yang Yang,Feixiang Ding,Xiaohui Rong,Juping Xu,Wen Yin,Nian Zhang,Zhiwei Li,Yaxiang Lu,Bingwen Hu,Jun Lu,Ju Li,Yong-Sheng Hu
Na-ion batteries (NIBs) are emerging as a promising alternative to Li-ion batteries (LIBs). To align with sustainability principles, the design of electrode materials must incorporate considerations for abundant and environmentally friendly elements, such as redox-active Fe. Despite its appeal, the enduring challenge of Fe migration in layered cathodes remains inadequately addressed over decades. Here, we propose a “seat-squatting” strategy via Li-substitution to fundamentally suppress Fe migration. Li is strategically introduced to migrate first, occupying available migration sites without inducing structural damage and effectively raising the activation energy for Fe migration. Experimental and theoretical validation using O3-Na0.83Li0.17Fe0.33Mn0.5O2 (NaLFM) demonstrates a robust suppression of irreversible Fe migration. As a result, the NaLFM cathode delivers enhanced structural and electrochemical cycling stability. This work illustrates a compelling strategy to curb irreversible Fe migration in NIBs, offering a pathway for the development of stable and cost-effective layered oxides based on Fe redox centers.
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高影响因子
International Journal of Environmental Research
·
2025
·Vol. 19
·期 6
·1-19
·
IF 3.5
Zhang Wen-hao,Wei Yu,Yu Qi,Wang Chun-heng,Lei Xue-fei,Luo Shao-hua,Chen Huan-huan,Mu Wen-ning
Phenol, as a representative organic pollutant in industrial wastewater, poses a critical challenge for environmental remediation. In this study, titanium-doped iron tailings-based heterogeneous catalysts (Ti/PCG) with enhanced electron transfer kinetics were synthesized via a high-temperature sintering method and evaluated for their photo-Fenton degradation efficiency toward phenol. The Ti/PCG catalysts were systematically characterized via SEM, BET, XPS, and photoelectrochemical analyses to elucidate their structural and electronic properties. Results indicated that 15% TiO 2 -doped Ti/PCG exhibited optimal properties, including the largest specific surface area, well-developed hierarchical pore structures, superior charge transfer capacity, and high carrier separation efficiency. Under optimized conditions (pH = 2.75, 0.2 ml H 2 O 2 (30 wt%), and 1 h light irradiation), the 15% Ti/PCG achieved 80.68% removal of phenol (initial concentration: 100 ppm). Mott-Schottky and VB-XPS analyses confirmed the n-type semiconductor behavior of the 15% Ti/PCG, with a conduction band (E CB ) at − 0.455 eV and a valence band (E VB ) at 2.09 eV, enabling the proposal of a plausible photo-Fenton degradation mechanism. Radical trapping experiments further demonstrated that hydroxyl radicals (·OH) and superoxide radicals (·O 2 − ) dominated the phenol degradation process. This work provides an optimized photo-Fenton strategy for phenol-laden wastewater treatment with 80.68% degradation efficiency, while demonstrating the potential of industrial solid wastes as sustainable catalysts in environmental remediation.
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高影响因子
Journal of Experimental Nanoscience
·
2012
·
IF 1.011
Zhongping Chen
The precursors used to prepare high-quality nanoparticles by high-temperature decomposition are expensive and toxic organometallic compounds. Fe(OH)3, an inexpensive and environmentally friendly iron-containing compound, is for the first time introduced to act as an precursor to generate monodisperse iron oxide nanoparticles. The obtained nanoparticles are characterised by transmission electronic microscopy, IR, XRD and vibrating sample magnetometer. Organic-soluble ferromagnetic rod-like and superparamagnetic dot-like nanoparticles with the size ranging from 12 to 25 nm are obtained in a nonpolar solvent by adjusting reaction parameters, such as surfactant concentration and reaction time. Water-soluble nanoparticles can be synthesised when a bipolar solvent is used instead of nonpolar solvent. The results show that Fe(OH)3 is a promising precursor for the high-temperature decomposition method.
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DOI
高影响因子
MOLECULES
·
2022
·Vol. 27
·期 19
·6518
·
IF 4.927
Xinjiang Zhang,Meng He,Yongzhong Zhan,Wenchao Yang,Kaifeng Wu
Copper matrix composites have a wide application as magnetic conductive materials, electromagnetic materials, electrical discharge machining materials, etc. Such materials are expected to have a good combination of excellent electrical conductivity and good mechanical strength. In this work, micro/nano hybrid reinforcements with Fe microspheres and reduced graphene oxide (rGO) nanosheets were developed for copper matrix composites. The rGO/Fe/Cu powders were firstly wet-mixed and then densified by the vacuum hot-pressing sintering to obtain the bulk compacts. Microstructure, electrical conductivity and mechanical properties of such compacts were investigated. Microstructural result of as-sintered compacts shows that the Fe microspheres could distribute in the matrix uniformly, and rGO nanosheets exhibit both agglomerated and dispersed states. The grain size of Cu matrix decreased with the increase of the rGO content. Hardness, compression and tensile 0.2% yield strength of the as-sintered compacts were improved evidently by the addition of the hybrid Fe/rGO, comparing with pure Cu and single Fe-added composites. However, a lower electrical conductivity appeared in the more rGO-added composites, but still reached more than 33.0% international annealing copper standard (IACS). These performance change could be sought in the spatially geometrical distribution and characteristics of such micro/nano Fe/rGO hybrid addition, and the relevant mechanisms were discussed.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2016
·
IF 3.014
Yan Yuan,Junxiang Wang,Zongqian Hu,Haiping Lei,Donghua Tian,Shuqiang Jiao
A Prussian blue analogue, Na 2 Co 3 [Fe(CN) 6 ] 2 , has been fabricated by a facile co-precipitation method at room temperature as a potential cathode material for both lithium-ion and sodium-ion batteries. It found that the Na 2 Co 3 [Fe(CN) 6 ] 2 nanoparticles with a primary particle size of 30–40 nm have been synthesized, and exhibited an excellent electrochemical performance , including a long cycling behavior in lithium-ion batteries and a good rate performance in sodium-ion batteries. In lithium-ion batteries, the Na 2 Co 3 [Fe(CN) 6 ] 2 nanoparticles cathode can deliver an excellent cyclic performance with 73.0% retention of initial capacity after 50 cycles at 50 mA g −1 . Moreover, when Na 2 Co 3 [Fe(CN) 6 ] 2 is used as cathode material of sodium-ion batteries, it exhibits an outstanding rate performance exceeding 75.2% retention of initial capacity after 50 cycles at 200 mA g −1 . Therefore, the Na 2 Co 3 [Fe(CN) 6 ] 2 nanoparticles can be a potential cathode candidate for the application of lithium-ion and sodium-ion batteries due to its excellent electrochemical performance, easy preparation, low cost and environment benefits.
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高影响因子
IEEE TRANSACTIONS ON MAGNETICS
·
2019
·Vol. 55
·期 12
·1-7
·
IF 1.651
Wentao Hu,Xi’an Fan,Zigui Luo,Fan Luo,Guangqiang Li,Yawei Li,Jian Wang
Fe/ZrSiO4 composite compacts with high thermal stability and excellent soft magnetic performance were prepared successfully by mechanical milling and spark plasma sintering. The effect of ZrSiO4 content on microstructure and magnetic properties of the Fe/ZrSiO4 composite compacts was investigated in detail. ZrSiO4 could be coated uniformly on the surface of Fe particles. With the increasing ZrSiO4 content, the core losses are effectively reduced, but the effective permeability and the saturation magnetic magnetization gradually decrease, while the coercivity has shown the opposite trend accordingly. The composite compact with 7.5 wt% ZrSiO4 has shown the superior structure and soft magnetic properties such as high saturation magnetic magnetization (202.20 emu/g), stable effective magnetic permeability (29.39), and lower core loss (4.53 W . kg-1 at 5 kHz). The results indicated that the Fe/ZrSiO4 composite compacts had potential application prospects in electromagnetic conversion equipment at medium and high frequencies.
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DOI
高影响因子
Materials Today Energy
·
2020
·
IF 5.604
Ziqi Zhang,Linchuan Cong,Zhuochen Yu,Lina Qu,Weimin Huang
Hydrogen is one of the most desirable sources with large energy density . Electrocatalysis of hydrogen evolution reaction is a promising way to produce hydrogen since it can be powered by renewable energy such as solar and wind energy . However, the mainstream electrocatalyst is noble metal (Pt/Ru/Ir), which is expensive and rare. It is necessary to develop non-noble metal catalysts toward HER from the perspective of sustainable development and long-term environmental conservation. Therefore, this paper provides a cheap and feasible way to synthesize the Fe–Ni bimetallic N-doped carbon framework (Fe–Ni@NCF). The prepared Fe–Ni@NCF exhibits the desired overpotential of 219 mV at 10 mA cm −2 in alkaline and 259 mV at 10 mA cm −2 in acidic solution, respectively. Besides, it exhibits similar current density loss as commercial Pt/C after 10,000 segments of CVs, which suggests satisfactory durability.
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DOI
高影响因子
Water Supply
·
2021
·Vol. 22
·期 1
·208-219
·
IF 1.033
Fu Xiaori,Wei Xinyan,Zhang Wei,Yan Wupeng,Wei Peng,Lyu Shuguang
The addition of hydroxylamine hydrochloride (HAH), ascorbic acid (ASC), sodium ascorbate (SAS) to the OA-Fe(II)/SPC system could promote the generation of HO • by accelerating Fe(II)/Fe(III) recycles and H 2 O 2 decomposition. The enhancement of HAH on HO • generation surpasses ASC and SAS in the OA-Fe(II)/SPC system. The generation of O 2 •− was also enhanced by HAH, ASC and SAS, and more significant promotion of O 2 •− generation was observed with ASC and SAS addition. More effective benzene removal was achieved in an OA-Fe(II)/SPC system with suitable HAH, ASC and SAS addition, compared to the parent system. Excessive HAH, ASC or SAS had a negative effect on benzene removal. Results of scavenger tests showed that HO • is indeed the dominant free radical for benzene removal in every system, but the addition of HAH, ASC and SAS increased the contribution of O 2 •− to benzene degradation. HAH, ASC and SAS enhanced OA-Fe(II)/SPC systems could be well utilized to acidic and neutral conditions, while HCO 3 − , high concentration of HA and alkaline conditions were not favorable to benzene removal. Moreover, the addition of HAH, ASC and SAS are conducive to benzene removal in actual groundwater, and HAH was the optimal reducing agent for the enhancement of the OA-Fe(II)/SPC system. Benzene removal performance in an RA-OA-Fe(II)/SPC system was investigated. HAH is more conducive to HO • generation than ASC and SAS. Significant promoted generation of O 2 •− was observed with ASC and SAS addition. HAH, ASC and SAS weakened negative effects of the solution matrix on benzene removal. HAH, ASC and SAS are conducive to benzene removal in actual groundwater.
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高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2026
·
IF 5.9
Ying-hong La,Wen-jia Ha,Yong-hu Ma,Zhi-qiang Wu,Hong-jian Zhao
In this work, an S-scheme heterojunction photocatalyst composed of Fe-MOF-NH 2 -modified BiOCl (denoted as BFN) was successfully prepared via a one-step hydrothermal technique for the efficient photocatalytic (PC) decomposition of tetracycline hydrochloride (TC-HCl). The morphology, crystal structure, composition, specific surface area, and photoelectric characteristics of BFN were systematically characterized using multiple techniques. XRD patterns confirm the successful fabrication of Fe-MOF-NH 2 /BiOCl (BFN) heterostructures. Introducing Fe-MOF-NH 2 shrinks BiOCl lattices via partial replacement of Bi 3+ with smaller Fe 3+ , which further exposes more active BiOCl (110) facets. SEM images display BiOCl nanosheets evenly grown on spindle hexagonal Fe-MOF-NH 2 to create compact heterointerfaces. This structure optimizes pore configuration and light capture. Owing to its elaborate heterojunction and regulated crystal texture, BET data confirm the optimal BFN possesses a high specific surface area of 116.2 m 2 ‧g −1 . UV–vis DRS further verifies a 420 nm red shift in its light absorption edge. XPS and EPR analyses reveal that the oxygen vacancy concentration in the heterojunction is significantly increased, 3 and 8 times higher compared to those of Fe-MOF-NH 2 and BiOCl, respectively. The compact S-scheme heterojunction constructs a directional charge-carrier transfer pathway. This structure strongly suppresses photocarrier recombination while preserving robust redox potentials. Higher photocurrent density and lower EIS impedance jointly confirm accelerated charge separation. PC experiments demonstrate that the 70% BFN sample achieves markedly higher degradation efficiency for TC-HCl under Light-emitting diode (LED) lamp irradiation compared with the individual components, and the degradation process involves multiple reactive species, including h + , ·O 2 − , and ·OH. LC-MS analysis revealed three possible degradation pathways, and hydroponic toxicity tests using mung bean as the model plant confirmed that the TC-HCl degradation products exhibit substantially reduced biotoxicity and even exert a certain growth-promoting effect. This study unveils the quadruple synergism of extended light absorption, S-scheme carrier migration, abundant oxygen vacancies and enhanced surface adsorption, offering experimental and theoretical support for bismuth/MOF photocatalysts in antibiotic wastewater remediation and agricultural ecological protection.
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高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Guichao Zhang,Beibei Li,Hua Ning,Jiaxin Li,Wenkang Liu,Lanlan Li,Xinghua Zhang,Xiaojing Yang,Xiaofei Yu,Zunming Lu
The sluggish oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) kinetics at the air cathode impede the performance of zinc-air batteries (ZABs). Although single-atom catalysts obtained from metal-organic frameworks (MOFs) exhibit impressive catalytic activities, metal species tend to aggregate during the pyrolysis, making it difficult to achieve highly dispersed atomic active sites. To address this issue, a dual-MOF strategy was employed to successfully synthesize Fe single-atom catalyst (Fe/NC-920) from ZIF-8@MIL-101(Fe)#20. During the pyrolysis, Zn volatilization from ZIF-8 generated anchoring sites, while Fe atoms from MIL-101(Fe) were stabilized at these sites, forming stable Fe-N 4 coordination. Due to the rich porous structure and the highly dispersed active sites, Fe/NC-920 exhibited superior OER (an overpotential of 310 mV at 10 mA cm −2 ) and ORR (a half-wave potential of 0.90 V) activities. Besides, the ZAB based on Fe/NC-920 demonstrated superior stability than the ZAB based on Pt/C + RuO 2 . This strategy provides a feasible approach for the development of effective ZAB catalysts.
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高影响因子
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