JOURNAL OF MATERIALS RESEARCH
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2023
·Vol. 38
·期 11
·2986-2997
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IF 2.7
Asghar Humaira,Khan Iltaf,Saeed Muhammad,Wu Ping,Khan Aftab
In this research work, g-C 3 N 4 /SmFeO 3 nanosheets Z-scheme based nanocomposites were effectively synthesized by employing PVP as a structure-manipulating agent. The comparative investigations proved that g-C 3 N 4 and SmFeO 3 nanosheets have exceptional performances and photocatalytic activities as compared to SmFeO 3 and g-C 3 N 4 nanoparticles. Based on TEM, HRTEM, XRD, DRS, XPS, PL, FTIR, PEC, BET, and FS spectra it is proved that the coupling of CN nanosheets has effectively enlarged the surface area and enhanced the charge separation of SmFeO 3 nanosheets. Compared to pristine SmFeO 3 nanosheets, the most active 3CN-SFOS nanocomposite showed ~ 3.5 times improvement in catalytic activities for CO 2 reduction and Congo red degradation. Adding more, the scavenger tests confirmed that ⋅O 2− and ⋅OH are the most active species for decontamination of Congo red. Finally, our present innovative work will open a novel gateway for the preparation of g-C 3 N 4 /SmFeO 3 nanosheets based Z-scheme nanocomposites and their applications for CO 2 reduction and environment protection. Graphical abstract TOC Diagram: Schematic representation of the energy bandgaps, photogenerated charge separation, and photocatalytic activities improvement mechanism over g-C 3 N 4 /SmFeO 3 nanosheets Z-scheme based nanocomposites
研究领域:
材料科学
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环境科学
·
光催化
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产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2022
·
IF 6.137
Iltaf Khan,Aihua Yuan,Aftab Khan,Shoaib Khan,Sohail Khan,Sayyar Ali Shah,Waleed Yaseen,Yanjuan Cui,Xiaoping Shen,Xuyu Wang
In this novel research work, Cr 3+ incorporated and TiO 2 -modified porous SmFeO 3 -based nanocomposites are prepared via utilizing carbon nanosphere (CNS) as a hard template. Our experimental results proved that the introduction of porosity by employing a sequential template approach (STA) has upgraded the performances of SmFeO 3 nanoparticles. Remarkably, the incorporation of Cr 3+ increased the light absorption capability by generating surface states and regulating band gap positions, whereas the fabrication of TiO 2 enlarged surface area and enhanced charge separation by modulating high-level energy electrons (HLEEs). According to our experimental techniques, including TEM, HRTEM, SEM, TGA, BET, PEC, FS, and PL, it is demonstrated that most optimal 6Cr-PSFO and 4TiO 2 /6Cr-PSFO nanocomposites have high porosity, appropriate bandgap positions, large surface area, and show superior visible-light photocatalytic activities compared to pristine SmFeO 3 nanoparticles. Compared to pristine SFO, the activities of most active 4TiO 2 /6Cr-PSFO nanocomposites are improved by 8-fold for CO 2 conversion and 3-times for 4-chlorophenol (4-CP) degradation. The radical trapping experiment confirmed that the · OH i are the most active species and has a vital role in the photocatalytic degradation of 4-CP. Moreover, our experimental results are verified and consistent with theoretical calculations and computational studies. Finally, our research work will open up a new gateway for the designing of novel porous SmFeO 3 -based nanocomposites and their use in CO 2 conversion and pollutant removal.
研究领域:
材料科学
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环境科学
·
纳米技术
·
光催化
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产品关联
DOI
高影响因子
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
·
2016
·Vol. 16
·期 1
·1151-1154
·
IF 1.338
Tang Peisong,Ni Dongjing,Cao Feng,Li Bin
Single phase perovskite SmFeO3 nanoparticles were synthesized using a simple microwave method using Fe(NO3)3 · 9H2O and Sm(NO3)3 · 6H2O. The resulting samples were characterized by powder X-ray
diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) surface area measurement, UV-visible diffuse reflectance spectroscopy (DRS) and Fourier transform infrared spectroscopy (FTIR). XRD and SEM results demonstrate the successful synthesis of nanocrystalline SmFeO3
and show an average grain size of 50–60 nm. The single phase structure and optical properties of SmFeO3 were maintained after calcination at 1000 °C. The prepared nanocrystalline SmFeO3 displays excellent thermal stability and strong visible-light absorption,
with an absorption onset of 540 nm or so. The photocatalytic experiment involving the decomposition of methyl orange under visible-light irradiation shows the high photocatalytic activity of the nanoparticles.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Longfei An,Yan Shan,Congmin Yang,Kezheng Chen,Xuegang Yu
In modern detection technology, the integration of lidar and microwave radar significantly increases the risk of exposure for high-value military equipment. Developing materials with multi-band stealth compatibility is a critical countermeasure to mitigate detection risks. In this study, a brownish-yellow samarium iron oxide material compatible with both 1.06 μm laser stealth and radar stealth was synthesized using the co-precipitation method, whose properties can be tuned by varying the raw material ratios. When the samarium-to-iron (Sm:Fe) ratio was 3:7, the primary crystalline phase was Sm 3 Fe 5 O 12 . Conversely, at Sm:Fe ratios of 1:1, the primary crystalline phase shifted to perovskite-type SmFeO 3 . Notably, Sm 3 Fe 5 O 12 material, prepared with a samarium-to-iron molar ratio of 3:7 and sintered at 800°C, demonstrated a reflectivity of 29.6 % at 1064 nm and excellent microwave absorption performance at 14.64 GHz, achieving a minimum reflection loss (RL min ) of −24.56 dB at a thickness of 4 mm and the effective absorption bandwidth of 1.36 GHz (13.76–15.12 GHz). This study provides a simple method for synthesizing brownish – yellow magnetic samarium iron oxide, which shows wide application in laser stealth, radar stealth and visual camouflage in plateau desert environments.
研究领域:
材料科学
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光学工程
·
电磁学
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Mengjie Han,Kaichun Xu,Yiwen Zhou,Shuaihu Chen,Chao Zhang
In recent years, respiratory gas analysis has gained considerable attention for the early detection of lung cancer. This paper presents the preparation of gas sensors based on SmFeO 3 porous microspheres using a one-step hydrothermal method. Ag nanoparticles were uniformly loaded onto the surface of SmFeO 3 microspheres through impregnation and annealing strategies. The materials were systematically characterized using techniques such as X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet–visible-near-infrared absorption spectroscopy (UV–VIS-NIR). The gas sensing tests indicated that the 4 % Ag-loaded SmFeO 3 sensor demonstrated the highest response to isopropanol (22.59 at 15 ppm) under operating conditions of 30 % relative humidity (RH) and 225 °C, which is twice that of the pure SmFeO 3 sensor. Moreover, the sensor exhibited excellent selectivity toward isopropanol gas. Ultimately, this paper explores the sensitization mechanism of the Ag-loaded SmFeO 3 sensor, providing technical support for its potential application in the early detection of lung cancer.
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DOI
高影响因子
Journal of Energy Storage
·
2026
·
IF 9.8
Zhiruo Tang,Hong Zhang,Liangmao Liu,Yilin Xu,Zhicheng Li
As the next-generation energy storage devices, solid-state lithium metal batteries have attracted much attention due to their excellent safety and high energy density. Polyvinylidene fluoride (PVDF) based polymer electrolytes offer several advantages, including high thermal stability, high electrochemical stability, and workability. The low ionic conductivity restricts their practical applications. In this work, composite solid-state electrolyte (CSE) membranes based on PVDF were prepared by incorporating multiferroic SmFeO 3 fillers. The SmFeO 3 fillers enhance lithium salt dissociation in CSEs, resulting in ionic conductivity as high as 1.50 × 10 −4 S cm −1 at 25 °C. Benefiting from the synergistic effect of the ferroelectric and ferromagnetic properties of the SmFeO 3 fillers, a robust and dense solid electrolyte interphase containing LiF is formed, Li-ions uniformly deposit on the surface of anode metallic lithium, thereby suppressing the formation and growth of lithium dendrites during the electrochemistry processes. The assembled Li|CSE|Li symmetric cells exhibit long-cycle performance (over 4800 h) under a current density of 0.1 mA h cm −2 at 25 °C. The Li|CSE|NCM811 batteries, assembled with LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) as the cathode, exhibit good cycle stability with a capacity retention rate of 83% and an average coulombic efficiency of 99.3% after 200 cycles at a current density of 0.5C and 25 °C.
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Yi-Cheng Geng,Xiang-Bing Li,Bao-Xu Wu,Qian-Qian Zhang,Ling-Yan Qiao,Zhou-Ke Huang,Shi-Jie Lu,Le-He Zheng
In this work, SmFeO 3 nanorods were prepared via a hydrothermal synthesis route, and a heterostructure was subsequently constructed via a secondary hydrothermal process, resulting in the successful preparation of SmFeO 3 /Bi 2 WO 6 nanocomposites with a unique flower-rod-like morphology. The successful formation of the SmFeO 3 /Bi 2 WO 6 composite was confirmed using various characterization techniques. SEM observations revealed that the composite consists of Bi 2 WO 6 nanoflowers and SmFeO 3 nanorods grown on their surfaces. The gas-sensing performance test results demonstrated that the SmFeO 3 /Bi 2 WO 6 nanocomposite exhibits significantly enhanced gas-sensing properties. Compared with pristine Bi 2 WO 6 , the SmFeO 3 /Bi 2 WO 6 nanocomposite has an optimal operating temperature that is 30°C lower and a response value that is four times higher; compared to pure SmFeO 3 , its optimal operating temperature is 100°C lower, and its response value is also slightly higher. The mechanism behind the performance enhancement can be attributed to the combination of the advantages of both materials, resulting in a microstructure characterized by a rough surface and a large specific surface area. At the same time, the successful formation of the heterojunction has effectively improved electron transport efficiency. This study provides important insights into the application of perovskite composites for enhancing gas-sensing performance.
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Huai Wang,Zhenyu Yuan,Renze Zhang,Mengran Ran,Liyun Qin,Hanyang Ji,Kaiping Yuan,Fanli Meng
Aniline is not only a type of carcinogen but also the raw material for the preparation of drugs. Therefore, the detection of aniline is of great significance in human health and environmental protection. In this paper, rGO-SmFeO 3 -In nanocomposites were prepared by hydrothermal method for the detection of aniline by combining the excellent properties of rGO and In. The lattice, micro-morphology, elemental distribution and chemical state of the gas-sensitive material were analyzed through XRD, SEM, EDS, and XPS characterizations, which confirmed that the In-doped SmFeO 3 (SFO) nanoblocks-assembled microspheres composited on rGO were successfully prepared, and the nanocomposite possessed abundant oxygen vacancies. The gas sensitivity test results showed that 2 wt% rGO-SFO-1.5 wt% In had excellent gas sensitivity to aniline gas. At 200℃, 2 wt% rGO-SFO-1.5 wt% In had a higher response value of 64.2–100 ppm aniline, which was 6 times that of SFO, and showed a faster response and recovery process (10 s/5 s). In addition, the sensor demonstrated its ability to detect aniline at a lower detection limit of 1 ppb with a response rate of 1.25. Furthermore, the gas sensor was integrated into the embedded system to achieve real-time detection of aniline gas. This study provides a new reference for the development of low detection limit and high sensitivity aniline gas sensor.
研究领域:
材料科学
·
气体传感技术
·
纳米材料
·
环境监测
·
化学传感器
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）