ACS Applied Materials & Interfaces
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2025
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IF 8.2
Yuanhui Shen,Chongyan Ruan,Qian Jia,Ying Pan,Hongguang Jin
Chemical looping dry reforming of methane (CL-DRM) is a novel CO2 utilization technology, producing high-quality syngas. Herein, the perovskite oxygen carriers La(Fe0.8–xNixAl0.2)O3 (x = 0, 0.2, 0.4, 0.6, and 0.8) were investigated for the CL-DRM process. Remarkably, La(Fe0.4Ni0.4Al0.2)O3 exhibited 93% CH4 conversion, 100% CO2 conversion, and 100% CO selectivity at 800 °C. Combined activity and characterization results suggest that the doping of Al promotes the nucleation of Ni and the growth of Ni-Fe nanoparticles. Owing to the redox exsolution effect during the cycles, the oxygen carriers are modified with abundant Ni-Fe catalytic sites on the surface, which exhibit excellent catalytic activity, oxygen capacity, and structural stability. In addition, the carbon cycle, which consists of methane decomposition and carbon oxidation, is catalyzed by Ni-Fe nanoparticles for enhanced CH4 and CO2 conversion during the cyclic redox process. We anticipate that the engineering of nanocatalytic sites on oxygen carriers will be conducive to obtaining target products for CL-DRM process optimization.
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高影响因子
Small
·
2025
·
IF 12.1
Mingbo Wu,Dong Li,Yao Liu,Xin Li,Xiaomiao Ruan,Jingwen Yang,Zegang Li,Siyi Chen,Xin Yang,Wenwu Ling
Current thrombolytic drug therapies are challenged by limited circulation time, off-target effects, and bleeding risks. In this study, multifunctional piezoelectric nanoplatforms are rationally designed for piezoelectric Fenton-assisted thrombolysis. Piezoelectric hollow barium titanate (hBT) nanoparticles (NPs) are synthesized via template-assisted etching and Fe-doping, followed by fucoidan grafting to obtain hBT 3Fe -Fu NPs. The hollow structure demonstrated a four-fold enhancement in piezoelectric response compared to that of solid NPs, and Fe-doping promoted the formation of oxygen vacancies, regulated the bandgap, and enhanced piezoelectric polarization. Moreover, ultrasound-triggered piezoelectrons accelerated Fe 3+ /Fe 2+ transformation, synergistically dissolving thrombi with 88.6% efficiency in vitro. In a venous thrombosis model, fucoidan-mediated active targeting achieved 2.4-fold greater NP accumulation at the thrombus site. Integrated piezoelectric-Fenton therapy resulted in complete thrombus dissolution and vessel recanalization while maintaining < 5% bleeding risk and negligible systemic toxicity. The engineered hBT 3Fe -Fu nanoplatform represents a promising non-pharmacological strategy for safe and effective piezocatalytic thrombolytic therapy.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Chenyang Xu,Juan Zhang,Shengpeng Chen,Zexing Wang,Xiangyun Tan,Miaotang Wei,Yanhui Guo
Anion exchange membrane water electrolysis driven by renewable energy sources such as solar and wind is recognized as a highly promising strategy for low-cost industrial-scale hydrogen production. However, the lack of durable and highly active electrocatalysts hinders the development of this strategy. Herein, a promising bifunctional Fe/NiWB@MS monolithic electrocatalyst is successfully developed through facile electroless plating and chemical etching methods. The Fe/NiWB@MS electrocatalyst requires only 113 mV and 267 mV to achieve 100 mA cm–2 for hydrogen evolution reaction and oxygen evolution reaction in a 1.0 M KOH solution. An AEM electrolyzer using Fe/NiWB@MS as both the cathode and the anode achieves a current density of 1 A cm–2 at a cell voltage of 1.84 V. This performance underscores its significant potential for industrial hydrogen production. This study not only introduces an efficient approach to the design of transition metal boride based electrocatalysts but also significantly advances the development of bifunctional electrocatalyst technologies for industrial-scale hydrogen production.
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JOURNAL OF NANOBIOTECHNOLOGY
·
2025
·Vol. 23
·期 1
·1-21
·
IF 12.6
Zhao Jinchao,Lei Lei,Zeng Cheng,Zhou Xianfei,Ding Junkang,Dai Wenbin,Jiang Angfeng,Zou Shaomin,Jin Qiao,Tang Zhe
Incomplete radiofrequency ablation (iRFA) of hepatocellular carcinoma (HCC) has the risk to exacerbate the tumor immunosuppressive microenvironment and promote lung metastasis. There is an urgent need to reverse the immunosuppressive microenvironment and reduce lung metastasis after iRFA. Herein, an iron-based metal-organic framework loaded with capmatinib (Fe-MOF/Cap) is employed to reverse the immunosuppressive microenvironment dominated by M2-like tumor-associated macrophages (TAMs) after iRFA and inhibit lung metastasis of HCC. On one hand, Fe-MOF/Cap repolarizes M2-like TAMs to M1-like TAMs and inhibits the expression of PD-L1 after iRFA, promoting CD8+ T cell infiltration. The infiltration of CD8+ T cells and the decrease of PD-L1 are conducive to enhance the immunotherapy after iRFA. On the other hand, Fe-MOF/Cap can inhibit lung metastasis of HCC via inhibiting the expression of c-MET. In vitro and in vivo experiments confirm that Fe-MOF/Cap is able to significantly inhibit the lung metastasis of HCC after iRFA by inhibiting the c-MET/STAT3/VEGF pathway. Fe-MOF/Cap provides a potentially promising strategy for HCC immunotherapy and anti-metastasis after iRFA, with favorable clinical prospects.Graphical
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ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Xiaozhong Zhou,Zhaoyi Qi,Yuyuan Jiang,Pengfei Yan,Juanxia Ding,Haiyan Wang,Hongkai Lu,Dongxu Liu,Kaifa Dong,Yougen Tang,Dongfei Sun,Ziqiang Lei
SiO x is regarded as a promising anode material for the next-generation lithium-ion batteries with high energy density. However, the reduplicative volume changes during cycling cause the pulverizations of Si, leading to decreased utilization of active Si component and poor cycling performance. Herein, a facile and scalable Fe-Cr decorating strategy is reported to boost the lithium storage of SiO x anode. Our comprehensive characterizations indicate that there are strong interactions between Fe-Cr and SiO x during a facile ball milling process. After cycling, Fe-Cr nanoparticles are dispersed in the in-situ formed lithium silicates and Li 2 O matrix, which can maintain superior conductivity of lithium ion and electron for the active components through point-to-point connections. This unique structure boosts the electrochemical de-alloying process of the low-valent Li x Si (0 ≤ x ≤ 2), and increases effective utilization of the active Si component during cycling, resulting in improvement of reversible capacity and cycling stability. This bm SiO x -FeCr electrode can deliver high reversible specific capacity (1370 m Ah g −1 at 200 mA g −1 ), good rate capability (653.8 m Ah g −1 at 2000 mA g −1 ), and superior cycling stability. This work provides a promising route for improving the utilization of active Si component and the structural stability of SiO x -based anodes.
研究领域:
材料科学
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电化学
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纳米材料
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能源存储
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电池技术
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固态物理
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PHYSICAL CHEMISTRY CHEMICAL PHYSICS
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2026
·
IF 3
Wenya Huo,Yike Kuang,Zhendong Sha,Jun Ding
p-Nitrophenol (p-NP) is a toxic and persistent pollutant commonly found in industrial wastewater, necessitating efficient and economically viable treatment strategies. In this work, we develop a low-cost and high-performance catalyst consisting of Fe-Cu-Cr mixed metal oxides supported on activated carbon (AC), synthesized through a simple impregnation-calcination method and applied for peroxymonosulfate (PMS) activation.Systematic optimization of preparation parameters revealed that HCl pretreatment of activated carbon, a ternary Fe-Cu-Cr composition, a 20 wt% metal loading, and calcination at 600 °C yield the highest catalytic activity, achieving p-NP degradation with Ct/C₀ ≈ 0.25 after 4 h. Notably, the total treatment cost can be maintained below 30 CNY per ton of wastewater, demonstrating a substantial economic advantage over reported catalytic systems. Mechanistic studies show that p-NP degradation follows a synergistic adsorption-catalysis pathway, wherein activated carbon enriches p-NP at the catalyst surface and multivalent metal oxides efficiently activate PMS to generate reactive oxygen species, primarily •OH. This work introduces a practical, scalable, and cost-effective catalyst design using earth-abundant metals, offering a promising avenue
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Tao Liu,Yan Zeng,Tao Ma,Feng Liang
Antibiotic contamination in aquatic environments poses increasing environmental and health risks, calling for efficient and sustainable remediation strategies. In this work, a metal organic framework (MOF)-mediated approach is developed to construct iron-doped carbon nitride (CN) nanotubes (Fe-CN-X, X = 0, 65, 135, 200, 270) using MIL-88A(Fe) as both an iron source and a structure-directing precursor. By regulating the amount of MIL-88A(Fe), the Fe content and structural properties of the Fe-CN-X can be precisely tuned, leading to the formation of surface-porous nanotubular structures with well-dispersed active sites. Among the prepared samples, Fe-CN-135 exhibits an optimal combination of visible-light absorption, charge separation efficiency, and surface characteristics. Under visible-light irradiation in a H 2 O 2 -assisted photocatalytic system, Fe-CN-135 achieves 99.3% degradation of tetracycline (TC) within 40 min, with a pseudo-first-order rate constant of 0.1106 min −1 . Mechanistic investigations reveal that Fe incorporation narrows the bandgap, suppresses electron-hole recombination, and promotes Fe 3+ /Fe 2+ redox cycling, leading to a • OH-dominated oxidation pathway. The catalyst also demonstrates excellent stability and effectiveness toward multiple organic pollutants. This work provides a practical and scalable strategy for designing Fe-doped CN photocatalysts through MOF-mediation and offers a unique insight for the efficient degradation of organic pollutants.
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ADVANCED FUNCTIONAL MATERIALS
·
2023
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IF 19
Le Xiang,Daochuan Jiang,Yue Gao,Chaofeng Zhang,Xiaodi Ren,Lingyun Zhu,Shan Gao,Xiaowen Zhan
The poor anode/electrolyte compatibility and dendrite growth have discouraged the development of solid-state sodium-metal batteries (SSSMBs). Here, a self-formed interphase with a unique Fe valence gradient is designed to stabilize the anode interface of Na 3 Zr 2 Si 2 PO 12 solid electrolyte. This interphase consists of a Fe- and NaF-containing outer layer near the Na anode and a Fe 2+ /Fe 3+ -rich inner layer, which are in situ formed upon contacting Na with a sodiophilic α-Fe 2 O 3-x F x interlayer specially coated on Na 3 Zr 2 Si 2 PO 12 . The NaF and Fe prevents continuous reduction reactions and homogenize the electric filed, while the iron oxide gradient layer offers buffering Na storage during plating, further suppressing dendrite growth. Benefiting from the dynamically stable, low-impedance and dendrite-free interface, the symmetric cells achieve a 20-fold reduction in interfacial resistance and a fourfold enhancement in critical current density (CCD) at 25 °C, and powered a high CCD of 1.9 mA cm -2 and a 1000-h cycle life at 1 mA cm -2 at 80 °C. The corresponding SSSMBs based on Na 3 V 2 (PO 4 ) 3 cathodes deliver a capacity retention rate of 96% over 120 cycles at 1 C. This robust interface design supports one of the best electrochemical performances ever reported and offers a comprehensive solution to stabilize the Na 3 Zr 2 Si 2 PO 12 /Na interface toward practical SSSMBs.
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Analytical Methods
·
2023
·Vol. 15
·期 19
·2334-2342
·
IF 3.1
Qian Li,Jing Yang,Wenzhan Yu,Liqiong He,Renlong Zhou,Changming Nie,Lifu Liao,Xilin Xiao
Monocrotophos (MP), an organophosphorus pesticide, poses a serious threat to human health, so a rapid and simple technique is needed to detect it. In this study, two novel optical sensors for MP detection were created using the Fe(III) Salophen complex and Eu(III) Salophen complex, respectively. One sensor is an Fe(III) Salophen complex (I-N-Sal), which can bind MP selectively and form a supramolecule, resulting in a strong resonance light scattering (RLS) signal at 300 nm. Under the optimum conditions, the detection limit was 30 nM, the linear range was 0.1–1.1 μM, the correlation coefficient R2 = 0.9919, and the recovery rate range was 97.0–103.1%. Interaction properties between the sensor I-N-Sal and MP and the RLS mechanism were investigated using density functional theory (DFT). And another sensor is based on the Eu(III) Salophen complex and 5-aminofluorescein derivatives. The Eu(III) Salophen complex was immobilized on the surface of amino-silica gel (Sigel-NH2) particles as the solid phase receptor (ESS) of MP and 5-aminofluorescein derivatives as the fluorescent (FL)-labeled receptor (N-5-AF) of MP, which can selectively bind the MP and form a sandwich-type supramolecule. Under the optimum conditions, the detection limit was 0.4 μM, the linear range was 1.3–7.0 μM, the correlation coefficient R2 = 0.9983, and the recovery rate range was 96.6–101.1%. Interaction properties between the sensor and MP were investigated by UV-vis, FT-IR, and XRD. Both sensors were successfully applied to the determination of MP content in tap water and camellia.
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Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 12
·6191-6197
·
IF 11.9
Hongzhou Yang,He Huang,Qing Wang,Lu Shang,Tierui Zhang,Shouguo Wang
3d transition metal single atom catalysts (SACs) (e.g. M = Fe, Co, Cu) are considered as promising catalysts for oxygen reduction reaction (ORR), among which Fe SACs display comparable performance to commercial Pt/C. However, Fe SACs still demand significant improvements in activity and stability for further industrial deployment. Herein, a Fe, Cu dual metal SAC was synthesized using a facile ligand-mediated method. Fe and Cu atoms were atomically dispersed on commercial carbon black in the form of FeN4 and CuN4 sites. Owing to the interactions between the adjacent Fe and Cu atoms co-existing in a very tiny area, the as-synthesized Fe, Cu dual metal SAC exhibited excellent ORR performance with a high half-wave potential of 0.926 V and good stability in 0.1 M KOH, which are significantly higher than that of the Fe-SAC or Cu-SAC control samples. Density function theory calculations showed that the Cu single atom can act as an electron donator enriching the electron density of Fe sites, thus endowing the Fe sites with optimized adsorption/desorption energy for ORR intermediates and thereby facilitating the ORR activity of FeCu-SAC. Moreover, a study on three typical commercial carbon substrates indicated that carbon support with high surface areas and hierarchical pore structure was beneficial for ORR. The excellent ORR activity and durability of FeCu-SAC enabled the constructed Zn–air battery to have a high power density of 201.4 mW cm−2 and high specific energy of 827.68 W h kg−1.
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International Journal of Environmental Research and Public Health
·
2023
·Vol. 20
·期 5
·4571
·
IF 4.614
Shuyan Yu,Huiying Zhang,Congju Li
In this study, MIL-53(Fe) was innovatively incorporated into carbon felt (CF) by growing in-situ using the solvothermal method. MIL-53(Fe)@carbon felt (MIL-53(Fe)@CF) was prepared and used for the degradation of rhodamine B (RhB). As a new photocatalytic membrane, MIL-53(Fe)@CF photocatalytic membrane has the characteristics of high degradation efficiency and recyclability. Influence of various parameters including MIL-53(Fe)@CF loading, light, electron trapper type, and starting pH on RhB degradation were investigated. The morphology, structure, and degradation properties of MIL-53(Fe)@CF photocatalytic membrane were characterized. Corresponding reaction mechanisms were explored. The results indicated that pH at 4.5 and 1 mmol/L H2O2, 150 mg MIL-53(Fe)@CF could photocatalytically degrade 1 mg/L RhB by 98.8% within 120 min, and the reaction rate constant (k) could reach 0.03635 min−1. The clearance rate of RhB decreased by only 2.8% after three operations. MIL-53(Fe)@CF photocatalytic membrane was found to be stable.Keywords:MIL-53(Fe)@carbon felt;photocatalytic;degradation;rhodamine B
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Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Huihu Wang,Hao Tu,Feng Chen,Huang Xu,Ziguan Zhang,Guode Chen,Chenhuinan Wei,Xing Xiang,Zhixiong Xie
Through a facile oil bath method, a novel highly dispersed NH 2 -MIL-101(Fe)/carboxylated g-C 3 N 4 (NM-101(Fe)/CCN) heterostructure was prepared using the chemical bonding between carboxyl groups and -NH 2 groups. Compared with the octahedral morphology of pure NM-101(Fe), the chemical bonding interaction promoted the heterogeneous nucleation and growth of NM-101(Fe) to form nanometer-sized granular morphology, which was homogeneously dispersed on CCN surface. Cr(Ⅵ) and ciprofloxacin (CIP) were selected as the typical pollutant models in micro-polluted water sources. The results showed that 10 %NM-101(Fe)/CCN heterostructure could remove 97 % of Cr(Ⅵ) in 60 min and 88 % of ciprofloxacin (CIP) in 120 min. In the dual pollutant system of Cr(Ⅵ) and CIP, Cr(Ⅵ) reduction and CIP degradation can promote each other, and the degradation efficiency of CIP reached 96 % within 120 min. The apparent rate constant of 10 %NM-101(Fe) /CCN heterostructure for Cr(Ⅵ) reduction was 4.30 and 9.67 times of that of NM-101(Fe) and CCN, respectively, which may be ascribed to the interface electric field and good interface bonding of heterojunction . The charges separation efficiency was significantly improved, which effectively enhanced the photocatalytic activity.
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