APPLIED CATALYSIS B-ENVIRONMENTAL
·
2020
·
IF 16.683
Yanbiao Shi,Xiaobing Wang,Xiufan Liu,Cancan Ling,Wenjuan Shen,Lizhi Zhang
We demonstrate that visible light irradiation can promote Fe 3 S 4 Fenton oxidation of atrazine. The visible light irradiation could increase the atrazine Fenton degradation rate by 4.9 times. The enhanced atrazine degradation activity under visible light was attributed to the higher surficial Fe(II)/Fe(III) ratio of Fe 3 S 4 and the efficient surface iron redox cycle triggered by visible light. Experimental results revealed that the operando formation of FeOOH on the Fe 3 S 4 surface blocked the iron redox cycle and inhibited the H 2 O 2 decomposition, accounting for the largely decreased Fenton activity of Fe 3 S 4 in dark, while these problems were successfully solved by the introduction of visible light irradiation, which excite Fe 3 S 4 to produce abundant photo-generated electrons and O 2 − for efficient regeneration of active Fe(II) species of Fe 3 S 4 and in-situ formed FeOOH.
研究领域:
环境科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2019
·Vol. 31
·期 8
·085708
·
IF 3.399
Jialiang Luo,Yubing Hu,Lei Xiao,Guangpu Zhang,Hu Guo,Gazi Hao,Wei Jiang
3D flower-like Fe3S4 microspheres and quasi-sphere Fe3S4-RGO hybrid-architectures were successfully fabricated by a facile template-free hydrothermal method. The results of morphology revealed that the single Fe3S4 was composed of many nanoflakes and the Fe3S4-RGO composites mainly distributed together into a ball up and down the RGO sheet. The electromagnetic parameters of the single Fe3S4 and Fe3S4-RGO composites could be controlled by adjusting different filler loading and the addition of different GO to achieve impedance matching. Both the single Fe3S4 and Fe3S4-RGO composites exhibited an excellent EM absorption ability. The minimum reflection loss (RL) of the single Fe3S4 with 50% filler loading could achieve −66.87 dB at 10.57 GHz for the thickness of 2.2 mm, and the absorption bandwidth (RL < −10 dB) could reach 3.49 GHz. For the Fe3S4-RGO composites, the minimum RL of FSR-1 could be −40.25 dB at 9.67 GHz with the thickness of 2.0 mm. In addition, the effective absorption bandwidth of FSR-2 could reach 3.85 GHz at only 1.45 mm and the minimum RL was −29.25 dB at 14.24 GHz. Consequently, the single Fe3S4 and Fe3S4-RGO composites are promising materials as a high performance and adjustable EM wave absorber.
研究领域:
材料科学
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电磁学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Miao Lei,Jun Zhang,Junhang Huang,Junpeng Guo,Chang Liu,Bolin Li,Ye Li
It is of great strategic value for the recovery of uranium resources in seawater. In this work, Fe 3 S 4 /Fe 7 S 8 was synthesized by hydrothermal method to extract the radioactive nuclides of U(Ⅵ). Results of batch experiment discovered that Fe 3 S 4 /Fe 7 S 8 exhibited good U(Ⅵ) removal performance in a wide pH response range, and also had satisfactory selectivity towards uranyl ions even in the presence of co-existing ions (such as K + , Na + , Mg 2+ , Ca 2+ , Cl - , SO 4 2- ). At the temperature of 25°C and pH of 9, the adsorption achieved equilibrium after 120 min with the maximum adsorption capacity of 257.07 mg/g. In addition, the 5 successive adsorption-regeneration experiment and the real seawater experiment of trace U(Ⅵ) adsorption implied that Fe 3 S 4 /Fe 7 S 8 had outstanding reusability and practical application potential in U(Ⅵ) extraction. XRD results showed that the magnetic adsorbent was composed of Fe 3 S 4 and Fe 7 S 8 , with a high crystallinity and stable structure. The ratio of iron to sulfur was close to 7:8 according to semi-quantitative results of SEM-EDS . Further characterization analysis of FTIR and XPS revealed that the removal mechanism of Fe 3 S 4 /Fe 7 S 8 towards U(Ⅵ) mainly included the complexation of S(-Ⅱ), and the reduction of S 2− , S 2 2- and Fe(Ⅱ).
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2022
·
IF 14.224
Long Kong,Ruixin Yan,Min Liu,Junqing Xu,Takeshi Hagio,Ryoichi Ichino,Liang Li,Xinde Cao
In this study, β-Cyclodextrin (CD) modified Fe 3 S 4 nanomaterials were synthesized by a one-step facile strategy and investigated for the removal of Cr(VI). The resulted CD-Fe 3 S 4 exhibited enhanced removal efficiency toward Cr(VI) than bared Fe 3 S 4 with a maximum capacity of 220.26 mg·g -1 as the molar ratio of CD-to-Fe 3 S 4 at 0.2. The effective performance of CD-Fe 3 S 4 toward Cr(VI) could well maintain under oxic conditions and a wide pH range of aqueous solution. A high selectivity for Cr(VI) was achieved in the presence of coexisting cations and anions. More significantly, a single treatment step of CD-Fe 3 S 4 effectively removed chromium from actual electroplating wastewater to the detection limit of 0.004 mg·L -1 that far below the WHO limitation of Cr (VI) (<0.05 mg·L -1 ) combing with the rapid magnetic separation without adjusting the pH value of wastewater at 7. The effective removal of Cr (VI) by CD-Fe 3 S 4 involved a complex process of surface adsorption/reduction, and solution homogenous reduction and subsequent sequestration of Cr(III) achieving the effective removal of aqueous total Cr. The superior Cr (VI) removal capability and facial separation of CD-Fe 3 S 4 attained its prominent potential application as an effective material for the Cr(VI) removal.
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Xiaoyu Lu,Congling Li,Li Zhang,Wei Xia,Rui Liu,Aifeng Lv
The rational design of efficient, cost-effective, and durable electrocatalysts is crucial for the realization of hydrogen production through water splitting. The present study describes the synthesis of a novel three-dimensional (3D) volcano-like Fe 3 S 4 /Ni 3 S 2 /WO 3 /NiFe LDH/NF (Layered Double Hydroxides/Nickel Foam) electrocatalyst with a highly wrinkled structure through a two-step hydrothermal method. The as-synthesized electrocatalyst exhibits an exceptionally low overpotential of 77 mV for the hydrogen evolution reaction (HER) and 131 mV for the oxygen evolution reaction (OER) at a current density of 10 mA cm −2 , owing to the unique morphology and strong electronic interactions between Fe 3 S 4 , Ni 3 S 2 and WO 3 heterostructures. The Fe 3 S 4 /Ni 3 S 2 /WO 3 /NiFe LDH/NF electrocatalyst demonstrates exceptional performance in overall water splitting when employed as both anode and cathode, achieving a current density of 10 mA cm −2 at an impressively low cell voltage of 1.5 V as well as exhibiting remarkable durability with little degradation over a period of 12 hours. This study presents a straightforward approach for the synthesis of highly efficient and durable non-noble metal catalysts for overall water splitting under hydrothermal conditions.
研究领域:
材料科学
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电化学
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能源转换
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产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2015
·Vol. 3
·期 30
·15755-15763
·
IF 7.443
Long Kong,Lili Yan,Zan Qu,Naiqiang Yan,Liang Li
In this study, magnetic β-cyclodextrin stabilized Fe3S4 nanoparticles (CD-Fe3S4) were fabricated via a facile one-step route. The as-prepared CD-Fe3S4 exhibited a high Pb(II) adsorption capacity of 256 mg g−1, and it also showed a surprisingly efficient adsorption toward Zn(II), Cd(II), and Cu(II). XRD, FTIR and XPS analyses suggested that the mechanisms governing Pb(II) removal by CD-Fe3S4 were precipitation (formation of galena) and surface adsorption. Additionally, the magnetic properties of the synthesized Fe3S4 nanoparticles allow fast separation of sorbents from water. The sorption kinetic data were well-described by a pseudo-second-order model, whereas the adsorption isotherms followed a Langmuir isotherm model. Our experimental results proved that the β-cyclodextrin stabilized Fe3S4 could be a promising candidate for the removal of Pb(II) from water via simultaneously taking advantage of its magnetic properties and high affinity for heavy metals.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
INORGANIC CHEMISTRY
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2023
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IF 4.6
Dan Li,Jiahui Yang,Shuang Lv,Xiaopeng Li,Li Shao,Caiyun Zhou,Feigao Xu
Unique Fe3S4/Cu2O composites were constructed with high Fenton-like photocatalytic activity through the impregnation coprecipitation method. The structure, morphology, optical, magnetic, and photocatalytic properties of the as-prepared composites were explored in detail. The findings suggest that small Cu2O particles were grown on the surface of Fe3S4. The removal efficiency of TCH by Fe3S4/Cu2O was 65.7, 4.75, and 3.67 times higher than that of pure Fe3S4, Cu2O, and the Fe3S4 + Cu2O mixture, respectively, when the mass ratio of Fe3S4 and Cu2O was 1:1 at pH 7.2. The synergistic effect between Cu2O and Fe3S4 was the main factor for TCH degradation. The Cu+ species from Cu2O increased the Fe3+/Fe2+ cycle during the Fenton reaction. •O2– and h+ were the main active radicals; however, •OH and e– played the second role in the photocatalytic degradation reaction. Moreover, the Fe3S4/Cu2O composite retained good recyclability and versatility, and could be conveniently separated by a magnet.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Jinjing Ju,Yihan Wu,Junhui Li,Dan Li,Feigao Xu
Fenton-like reaction based on Fe 3 S 4 /H 2 O 2 system has been applied in pollutants degradation, but the obvious drawbacks largely hinder its practical uses. Fe 3 S 4 /CdS composites were prepared using a hydrothermal method and tested for photo-Fenton catalytic activity. The degradation activity of the composites was tested using tetracycline hydrochloride (TCH) as an organic pollutant. The study investigated the effects of the mass ratio of Fe 3 S 4 and CdS, catalyst dosage, temperature, pH change, and H 2 O 2 dosage on the degradation of TCH. The study found that the removal rate of TCH by Fe 3 S 4 /CdS was 2.34 and 3.53 times higher than that of pure Fe 3 S 4 and pure CdS, respectively, at 35 °C when the mass ratio of Fe 3 S 4 to CdS was 1:1 and the pH value was 4.2. The Fe 3 S 4 /CdS composites widened the pH range for the Fenton reaction and still showed good degradation of TCH under neutral conditions. The trapping experiments of the active substances revealed that the main active radicals were •O 2 - , while •OH, h + , and e - play a minor role in the degradation of TCH. The catalytic reaction performance was improved by the synergistic effect of CdS and Fe 3 S 4 . Five cycle experiments were conducted on the Fe 3 S 4 /CdS composites, demonstrating their stability and reproducibility.
研究领域:
环境科学
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材料科学
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催化化学
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产品关联
DOI
高影响因子
Environmental Science-Nano
·
2023
·
IF 7.3
Pascaline Sanga,Jia Chen,Jing Xiao,Bei Liu,Haitham Saad Al-mashriqi,Hongdeng Qiu
The efficient and sustainable removal of tetracycline (TC) from wastewater is a matter of great significance. In this study, we present a novel technique that effectively degrades TC by harnessing the synergistic effects of Fe3S4/Ti3C2MXene. The Fe3S4/Ti3C2MXene composite, specifically designed for this purpose, exhibits exceptional magnetic properties derived from Fe3S4. Our research demonstrates that this composite significantly enhances TC degradation through Fenton activity, achieving an impressive degradation rate of over 90%. Notably, when TC is subjected to the Fe3S4/Ti3C2MXene + H2O2 system, it generates a substantial amount of reactive oxygen species, including ˙OH and ˙O2−. Among these species, ˙OH, primarily produced on the surface of Fe3S4/Ti3C2MXene, plays a dominant role in TC degradation. In contrast, pristine Fe3S4 or Ti3C2MXene alone does not exhibit comparable degradation capabilities under similar conditions. Moreover, the Fe3S4/Ti3C2MXene composite demonstrates excellent reusability and high stability over four consecutive cycles. Gas/liquid chromatography–mass spectrometry (GC/LC–MS) analysis was utilized to identify the intermediates of TC degradation, and a possible degradation pathway was proposed. These findings highlight the potential of Fe3S4/Ti3C2MXene composites in enhancing the Fenton degradation process and unveil an encouraging tactic for the successful elimination of TC from wastewater.
研究领域:
环境科学
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材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Jing Li,Jiaqian Zheng,Chengke Wu,Huijie Zhang,Tingyi Jin,Fuquan Wang,Quanmin Li,Enbo Shangguan
A new kind of spherical Fe 3 S 4 with a 3D hierarchical structure, which is constructed with many intercrossed nanorods , is successfully synthesized via a facile hydrothermal method . The achieved Fe 3 S 4 microspheres are evaluated as advanced anode materials for alkaline iron-based secondary batteries for the first time. Influences of hydrothermal temperature on the physical and electrochemical performances of Fe 3 S 4 particles are investigated systematically. It is found that the Fe 3 S 4 fabricated at 150 °C exhibits better electrochemical properties than the ones obtained at other temperatures, including higher discharge capacity, attractive high-rate capability and good cycling stability. At 0.2, 0.4, 1.0, 2.0, and 5.0 C, the Fe 3 S 4 (150 °C) delivers discharge capacity of ~328.5, ~307.6, ~280.5, ~235.9, and ~169.5 mAh g −1 , respectively. Especially, after 400 cycles at 1 C/1 C, the Fe 3 S 4 (150 °C) presents capacity retention of 88.61%. The pronounced performance of Fe 3 S 4 is attributable to its inherent electrochemical activity, unique 3D hierarchical structure, and high S content, eventually resulting in the reduced charge transfer resistance, improved reversibility, and a beneficial porous electrode structure during cycling. Therefore, the as-achieved Fe 3 S 4 microspheres are promising anode materials for high-performance alkaline iron-based batteries.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2024
·
IF 6.9
Denghui Zhu,Tong Xu,Chengcai Li,Dan Xu,Guojin Liu,Hailin Zhu,Yuhai Guo
Photo-Fenton membranes exhibit exceptional self-cleaning and anti-fouling performances, making them promising for oil/water separation applications. However, the practical use of photo-Fenton catalytic reaction is limited as it requires an acidic environment. In this study, a polyethersulfone (PES)/Fe 3 S 4 @Al 2 O 3 membrane was fabricated using nonsolvent-induced phase separation. This resulted in a photo-Fenton separation membrane with a broad pH range applicability, leveraging the high catalytic activity of Fe 3 S 4 and the unique Lewis acid properties of Al 2 O 3 . The findings indicate that the optimized membranes can achieve a separation efficiency of over 99.3 % for various oil/water emulsions. The membrane demonstrates exceptional self-cleaning performance and stability, maintaining a separation efficiency of over 99 % even after 10 cycles of oil/water emulsion separation. Additionally, the membrane exhibited a catalytic degradation efficiency of 100 % for MB, RhB and MO under visible light in pH range of 2–12. The high separation efficiency, stability, self-cleaning performance, and wide pH range of these membranes make them promising candidates for long-term oily wastewater purification.
研究领域:
材料科学
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环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
MICROCHIMICA ACTA
·
2015
·Vol. 183
·期 2
·625-631
·
IF 3.741
Ding Caiping,Yan Yinghan,Xiang Dongshan,Zhang Cuiling,Xian Yuezhong
Greigite magnetic nanoparticles (Fe 3 S 4 -MNPs) were prepared and reveal a peroxidase-like activity. Kinetic studies revealed a pseudo-enzymatic activity that is much higher than that of other magnetic nanomaterial-based enzyme mimetics. This finding was exploited to design a photometric enzymatic glucose assay based on the formation of H 2 O 2 during enzymatic oxidation of glucose by glucose oxidase, and the formation of a blue product from an enzyme substrate that is catalytically oxidized by H 2 O 2 in the presence of Fe 3 S 4 -MNPs. Glucose can be detected in the 2 to 100 μM concentration range, and the low detection limit is 0.16 μM. The method was applied to quantify glucose in human serum. In our perception, this enzyme mimetic has a large potential in that it may be used in other oxidase based assays, but also in ELISAs.
Fe 3 S 4 magnetic nanoparticles (MNPs) are shown to act as peroxidase mimetics and this was used to design a glucose oxidase (GOx) based glucose assay where the H 2 O 2 formed during oxidation of glucose oxidizes tetramethylbenzidine (TMB) to give a blue product which can be quantified by photometry.
研究领域:
生物化学
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医学检测
·
纳米材料科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）