Biomedical Materials
·
2024
·Vol. 19
·期 2
·025018
·
IF 3.9
Antong Jiang,Teng Wang,Xiaoling Lu,Yuxiang Tian,Zihan Jiang,Bin Xu,Hanyuan Zhang,Weijun Fang
The application of both chemotherapy and ferrotherapy together has shown great potential in increasing the effectiveness of cancer treatment. To achieve such a combination, we herein have synthesized Fe3O4 core/MIL-100(Fe) shell nanocomposites (FM) that can be used for tumor chemo-ferroptosis combination therapy. In these nanocomposites, the anticancer drug 10-hydroxycamptothecin (HCPT) and iron ions could be co-delivered into tumors. On one hand, the released HCPT molecules can enter the cell nucleus and bind with DNA, resulting in induction of tumor cell apoptosis. On the other hand, the iron ions could react with H2O2 leading to the production of ROS through the Fenton reaction, thereby triggering tumor cell ferroptosis. Consequently, a superior antitumor effect was achieved through the combination of the apoptosis and ferroptosis. Additionally, the Fe3O4 core endowed FM with high performance for magnetic resonance imaging, which further provided novel avenues for imaging guidance therapy. Therefore, we anticipate that application of these nanocomposites could have great potential in the field of tumor therapy.
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KOREAN JOURNAL OF CHEMICAL ENGINEERING
·
2025
·
IF 3.2
Rao Qian,Li Hui-qiang,Yang Ping,Guo Ziou
Mo 2 C@Fe 3 O 4 and three kinds of MO 2 -doped Mo 2 C@Fe 3 O 4 were successfully fabricated as the Mo 2 C@TiO 2 @Fe 3 O 4 , Mo 2 C@MoO 2 @Fe 3 O 4 and Mo 2 C@CeO 2 @Fe 3 O 4 particles for the degradation of 2-methyl-4-isothiazolin-3-one and 1-hydroxy-1,1-diphosphonoethane in a three-dimensional electro-Fenton system. The catalyst particles showed an enhancement for the catalytic activity in the system. Furthermore, the Mo 2 C@CeO 2 @Fe 3 O 4 particles exhibited superior activity for 2-methyl-4-isothiazolin-3-one and 1-hydroxy-1,1-diphosphonoethane degradation compared to the other two particles. Based on the characterization of the synthesized particles, leaching concentration of Fe 2+ , generation of \({H}_{2}{O}_{2}\) , \(\bullet OH\) , \({O}_{2}^{\bullet -}\) , the reasons for the difference in pollutant degradation performance among the three type particles were comprehensively analyzed. At last, some important experimental parameters, such as particles dosage, current density and aeration intensity, which would obviously affect MIT and HEDP degradation performance were studied. Using the Mo 2 C@CeO 2 @Fe 3 O 4 as catalytic particles, optimal 2-methyl-4-isothiazolin-3-one and 1-hydroxy-1,1-diphosphonoethane degradation rates were 97.2% and 73.8% with 0.5 g of particle dosage, 97.22% and 73.75% with 300 mA of current density, and 97.28% and 73.71% with 0.1 L min −1 of aeration intensity.
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DESALINATION
·
2024
·
IF 8.3
Jingjing Zhang,Yong Mei Chen,Sihui Yang,Yang Yang,Andleeb Rani,Xuwu Sun,Yuan He
Solar vapor evaporators in saline hold enormous potentials in resource sustainability, seawater desalination, as well as renewable energy harvesting. Nanocomposite hydrogels with the property of photothermal conversion have emerged as candidates for solar-driven steam generation devices, but are limited by remote control and low mechanical properties in a saline environment. Here, we developed a remote-controlled, saline tolerant, and tough-yet-strong solar vapor evaporator based on multifunctional Fe 3 O 4 nanoparticles reinforced gel-nacre. The Fe 3 O 4 nanoparticles play triple roles of acting as nano-crosslinks, photothermal converters, and untethered manipulation, coupling gel-nacre matrix with a shrinking tendency in saline that contributes to synergistic mechanical reinforcement. Such integrated magnetic nanocomposite hydrogel exhibits tough-yet-strong mechanical properties (19.58 MPa ultimate strength, 300 % failure strain, self-recoverability under 500 %, and fatigue-resistance), addressing the challenges of remote operation system and high strength requirement for practical applications. Moreover, good photothermal conversion performances (1.26 kg m −2 h −1 evaporation rate and 92.84 % evaporation efficiency) could be achieved with remotely controlled motion or adjustable position simultaneously under an external magnetic field. The intelligent solar vapor evaporation system based on multifunctional magnetic Fe 3 O 4 @gel-nacre nanocomposite provides new opportunities for flexible energy-transducing devices with untethered manipulation in saline environment.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
·
IF 3.8
Yining Jiang,Ziyang Qiu,Siyang Deng,Han Yan,Xiao Song,Qian Chen,Liping Ruan
In this investigation, we successfully synthesized a core–shell nanomaterial featuring ternary Fe3O4@mSiO2@Carbon nanoparticles by utilizing mesoporous silica as the interlayer to disperse small particles of Fe3O4, which served as the core of the particles. The ternary nanoparticles Fe3O4@mSiO2@Carbon have demonstrated impressive electromagnetic wave (EW) absorption characteristics, with the most outstanding particle obtained by adding 0.2 g of resorcinol, achieving a minimum reflection loss (RLmin) value of −72.06 dB at an absorber thickness of 4.3 mm. In addition, it has the widest effective absorption bandwidth (EAB), reaching 6.21 GHz at a thickness of 2.7 mm. The radar cross section (RCS) reduction of the composite has been verified by CST simulation in the far field, and the strongest RCS reduction value was up to 38.06 dBm2 with a scattering angle of 33°. Our findings indicate that the addition of the mesoporous silica layer benefits the uniform dispersion of the magnetic small particles of Fe3O4, improves the impedance matching of the material, and enhances the absorption ability of EW. We posit that our synthesis process can serve as a valuable reference for the development of high-performance, lightweight, and low-density carbon-based EW absorbing nanomaterials.
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Journal of Water Process Engineering
·
2024
·
IF 6.3
Junjie Su,Qi Yang,Zhihu Zhang,Ziyue Zhang
Nowadays, Ni/Fe bimetallic nanocomposites have shown great potential for removing Cr(VI). However, the action of Ni 0 in Cr(VI) removal is still controversial, which was studied in this work. In this study, Ni/Fe@Fe 3 O 4 -g-C 3 N 4 (NFFOCN) nanocomposites were applied to remove Cr(VI) from aqueous solutions and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and other methods. Batch experiments were conducted to evaluate the Cr(VI) removal performance. Experimental results demonstrated that under optimal operating conditions (pH 5.5, 10 mg/L Cr(VI), 0.3 g/L NFFOCN, 30°C), a Cr(VI) removal efficiency of 90.78% was achieved within 50 min. Theoretical maximum adsorption capacity was calculated to be 36.101 mg/g. Combining experimental and characterization results, it could be concluded that Cr(VI) removal was attributed to the synergistic effect of the NFFOCN components. Ni 0 not only participated directly in the reduction of Cr(VI) as an electron donor, but also converted the corrosion product H 2 of nano-zero-valent iron (nZVI) into highly reducible atomic hydrogen (·H) to remove Cr(VI). Additionally, Ni 0 could form a primary battery with nZVI, facilitating the electron transfer between nZVI and Cr(VI). NZVI and its derivatives, Fe 2+ ions and green rust, were responsible for Cr(VI) reduction. Furthermore, the presence of Fe 3 O 4 and carbon nitride (g-C 3 N 4 ) improved the stability and reactivity of the nanocomposites.
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SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Pan Zhang,Changmei Wu,Lan Xie,Bai Xue,Yi Jiang
Considering the current challenges associated with fossil fuel scarcity and ice accumulation on solid surfaces, we propose a sustainable strategy that utilizes solar energy for ice formation, using a superhydrophobic coating possessing photothermal capabilities to tackle the challenges of icing and de-icing. We have successfully integrated the Fe 3 O 4 @SiO 2 @FAS/Ag-rGO composites into an epoxy matrix to create a photothermal superhydrophobic coating. The innovative coating boasts outstanding super-hydrophobicity with a water contact angle of 153.8°, resulting in a 60 μL water droplet experiencing a freezing delay of 1498 s at −20 °C ambient conditions, which is longer than that of pure EP coating. Additionally, the coating exhibits an impressive photothermal effect, raising the surface temperature to 58.8 °C under 1 sun. The coating also demonstrates rapid de-icing capabilities, clearing ice in just 120 s under 40 mW/cm 2 . By leveraging the light-trapping effect, utilizing the plasma resonance of silver, and incorporating a high surface roughness micro-nano hierarchical structure, the coating achieves exceptional photothermal conversion efficiency and anti-icing performance. Moreover, the coating's chemical and mechanical durability enhance its practicality and potential utility across various applications. In conclusion, this innovative superhydrophobic coating with photothermal properties offers a promising solution for various practical applications such as anti-icing and de-icing.
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APPLIED ORGANOMETALLIC CHEMISTRY
·
2024
·Vol. 38
·期 11
·e7685
·
IF 3.7
Ze-Nan Hu,Fangya Guo,Xiuxiu Zhang,Jie Yu,Yaru Yin,Biying Zhang,Hua-Jun Chen,Meijia Chang,Yiming Wang,Yalei Miao,Lan Zhang,Wenjie Tian,Hong-bin Sun
Hydrazine hydrate as a hydrogen source has a good effect on nitro reduction, but overuse has environmental toxicity and is prone to over-hydrogenation, resulting in low selectivity. Herein, we report a magnetically separable Rh/Fe 3 O 4 (1.26 wt%) catalyst containing an optimal Rh content that can completely convert 3-nitrostyrene to 3-vinylaniline (> 99% selectivity) using a stoichiometric molar ratio of hydrazine hydrate (-NO 2 :N 2 H 4 ·H 2 O = 1:1.5). This is due to the synergy between Rh and Fe 3 O 4 and the natural selectivity of N 2 H 4 ·H 2 O for nitro. The synergy can reduce the activation energy of the reaction (36.6 kJ/mol), increasing the reduction rate of nitro group and avoiding the combination of active hydrogen species (H*) to H 2 as well as the hydrogenation of N 2 H 4 to NH 3 . Moreover, the active H* produced by N 2 H 4 ·H 2 O is different from that produced by H 2 , and excess dose of N 2 H 4 will inevitably yield H 2 thus decline the selectivity.
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REPRODUCTIVE TOXICOLOGY
·
2025
·
IF 2.8
Cheng Cheng,Yanfan Cui,Yujie Wang,Jingfeng Huang,Jiale Ma,Tao Luo,Wen Chen
Microplastics and nanoplastics (MNPs) are widespread in the environment and have male reproductive toxicity. However, toxic interventions involving MNPs have not been extensively examined. In this investigation, we explored the elimination capacity of magnetic nano-Fe 3 O 4 on polystyrene microplastics and nanoplastics (PS-MNPs) of different sizes. This study also investigated whether magnetic nano-Fe 3 O 4 could alleviate the toxicity of PS-MNPs in spermatogonial GC-1 cells. After coprecipitation by magnetic nano-Fe 3 O 4 in ddH 2 O, the removal rates of polystyrene microplastics (PS-MPs, 4 and 10 μm) are much higher than those of PS-NPs (25 nm, 100 nm, and 500 nm). The removal rate of the PS-NPs dramatically enhanced in the salt ion solutions. In addition, 25-nm, 100-nm, 500-nm, and 4-µm PS-MNPs penetrated GC-1 cells. Nevertheless, exclusively 25-nm PS-NPs decreased cell viability, elevated reactive oxygen species, disrupted the mitochondrial membrane potential, and induced apoptosis and inflammation through the P38/MAPK and Nrf2/HO-1 signaling pathways in GC-1 cells. Interestingly, magnetic nano-Fe 3 O 4 alleviated these harmful impacts of the 25-nm PS-NPs on the GC-1 cells. In conclusion, we demonstrated the toxicity of PS-NPs in GC-1 cells and provided a viable way to alleviate their toxicity.
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Advanced Composites and Hybrid Materials
·
2025
·Vol. 8
·期 4
·1-12
·
IF 21.8
Wang Lijuan,Shi Yaqin,Wang Yuan,Jia Chunijang,Hou Jie,Su Yizhen,Xu Ben Bin,Liao Zhijian,Zhu Linhua
Synergistic effect between M-N X sites and M X O Y particles in hierarchical porous M–N-C catalysts holds great promises in boosting oxygen reduction reaction (ORR). In this work, 1,4-dicyanobenzene was utilized as a molecular template to prepare the hierarchical porous Fe–N-C catalysts with size-tunable Fe 3 O 4 particles for enhanced ORR in Zn-air battery. The as-prepared Fe 3 O 4 #Fe–N/C DB0.1 owned a half-potential of 0.90 V vs RHE, exceeding that of commercial 20%Pt/C (E 1/2 = 0.82 V vs RHE), showing a maximum power density of 321 mW cm −2 in a homemade Zn-air battery. Density functional theory (DFT) calculations indicate that the electronic interaction between Fe 3 O 4 and Fe-N 4 sites enhances the adsorption energy of *OOH, effectively optimizing the energy barrier for *O formation, significantly reducing the limiting energy barrier. Such superior ORR activity in Fe 3 O 4 #Fe–N/C originated from the optimized hierarchical pores and synergistic effect between Fe-N X sites and Fe 3 O 4 particles. This work provides a new and facile template strategy for engineering hierarchical porous carbon-based materials to achieve highly efficient catalytic reactions.
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Small
·
2025
·
IF 12.1
Jinyuan Zhang,Haifeng Liu,Jiajun Tian,Endong Hu,Xiujuan Gao,Haitao Hu,Zhengyou He,Kangli Wang,Kai Jiang,Hongwei Tao
Iron oxide (Fe 3 O 4 ) has attracted significant attention as a promising anode material for sodium-ion batteries (SIBs) due to its natural abundance, environmental benignity, and high theoretical capacity of 926 mA h g −1 . Nevertheless, its practical application is limited by intrinsic drawbacks, including low electrical conductivity, sluggish Na⁺ diffusion kinetics, and severe volume variation during cycling, leading to rapid capacity fading and poor rate capability. To address these issues, a novel Fe 3 O 4 /Fe@N-doped carbon (Fe 3 O 4 /Fe@CN) nanostructure is rationally designed, which integrates Fe 3 O 4 /Fe homogeneous heterojunctions with a uniform nitrogen-doped carbon shell. The built-in electric field at the Fe-Fe 3 O 4 interface promotes charge redistribution and accelerates electron/ion transport, while the N-doped carbon shell enhances electrical conductivity and buffers mechanical stress during sodiation/desodiation processes. Benefiting from this synergistic structure, the Fe 3 O 4 /Fe@CN anode delivers a high reversible capacity of 336.9 mA h g −1 at 0.1 A g −1 , excellent rate capability with 244.7 mA h g −1 at 2 A g −1 , and remarkable cycling stability, retaining 76.4% capacity after 500 cycles. Furthermore, a full cell assembled with a Na 3 V 2 (PO 4 ) 3 cathode exhibits a high energy density of 112.67 Wh·kg −1 at 51.42 W·kg −1 and outstanding cycling performance. This study offers a versatile strategy to unlock the potential of Fe 3 O 4 for high-performance SIB anodes through heterojunction and interfacial engineering.
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Journal of Water Process Engineering
·
2025
·
IF 6.7
Ying Xu,Shuili Yu,Zhiqiang Fan,Xingli Ji,Cong Huang,Zheng Xu,Rui Liu,Chao Jiang
Bromate (BrO 3 − ), a carcinogenic and regulated disinfection by-product, poses a persistent challenge to drinking water safety due to its high solubility and chemical stability. In this work, a noble-metal-free Fe 3 O 4 /TiO 2 /Bi photocatalyst was successfully prepared and subsequently applied for BrO 3 − reduction under ultraviolet light. The ternary composite design enables cooperative functionality among the components, where Fe 3 O 4 facilitates charge transfer and magnetic separability, Bi 0 acts as a hole scavenger, and TiO 2 serves as the primary photoactive material. Characterization results confirmed the successful formation of the heterostructure with enhanced charge separation properties. The composite containing 5 wt% Bi exhibited the highest activity, achieving 99 % BrO 3 − removal within 25 min at pH 7.0, with a pseudo-first-order rate constant of 0.185 min −1 , which is 11.8 times that of pure TiO 2 . The enhanced photocatalytic performance is ascribed to the synergistic effect between Bi, Fe 3 O 4 and TiO 2 . Bi 0 nanoparticles functioned as hole acceptors to suppress recombination, while Fe 3 O 4 facilitated electron transport and provided magnetic separability. The photocatalyst retained high activity over five consecutive cycles with negligible metal leaching and performance loss. In addition, its effectiveness was verified in tap water containing typical inorganic ions and dissolved organic matter, demonstrating moderate inhibition but maintaining BrO 3 − reduction capability. This study provides a cost-effective, magnetically recoverable, and noble-metal-free photocatalyst with improved charge separation efficiency and recovery feasibility, offering practical potential for BrO 3 − mitigation in drinking water treatment.
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Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Tingting Jiang,Sihui Bian,Siyu Huang,Guanbo Wang,Xinyue Song,Lin Zhu
Access to safe and cost-effective water is essential for sustainable development. Microbial water pollution has become an issue of increasing global concern. However, conventional water disinfection methods are beset with numerous limitations and challenges, particularly the generation of harmful carcinogenic by-products associated with chlorine-based technologies. Hence, we reported α-MoC 1-x @CB-Fe 3 O 4 -6 (denoted as α-MCF-6) composite for effective water sterilization based on photothermal effect. The composite showed superior light absorption and photothermal property, enabling temperature elevation of α-MCF-6 dispersion (50 μg/mL) from ambient to 61.7 °C. The α-MCF-6 dispersion achieved 100 % inactivation of both E. coli and S. aureus after 10 min NIR irradiation (2 W/cm²), and more than 98 % sterilization efficiency over three reuse cycles. COMSOL Multiphysics® v. 6.3 simulations illustrated efficient photothermal heat transfer from irradiated nanomaterials to aqueous media, causing bulk heating. Gram staining confirmed close contact between bacteria and α-MCF-6, facilitating heat transfer from the material to bacteria. Additionally, EPR analysis verified the presence of hydroxyl radicals (•OH and O 2 •− ), which contributed to assisted effects. This work explored an application of molybdenum-based photothermal materials and provided a high performance and energy-saving water sterilization method. COMSOL Multiphysics® v. 6.3 simulations and Gram staining confirmed close contact and heat transfer from the material to bacteria.
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