APPLIED SURFACE SCIENCE
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2022
·
IF 7.392
Luping Feng,Lixiang Zhang,Su Chu,Sheng Zhang,Xi Chen,Zhongling Du,Yushuang Gong,Hua Wang
MoS 2 nanosheets were doped with Fe elements simply via the one-pot hydrothermal route resulting in the peroxidase-like nanozymes with dramatically enhanced catalysis. It was discovered that the resulted Fe-MoS 2 could display controllable catalysis activities depending on the Mo-to-Fe molar ratios, among which the highest one was achieved at 3/1 with catalysis efficiency over three folds higher than that of pristine MoS 2 . The greatly improved catalysis performances of Fe-MoS 2 nanozyme are thought to be resulted from the synergistic effects of the doped Fe atom and Mo-S sites. On the one hand, herein, the Fe sites might serve as the electron transferring mediators to facilitate the peroxidase-like catalytic reactions, as confirmed by the cytochrome C -based electron transportation experiments. On the other hand, the Mo-S sites might conduct the catalytic behavior of Fenton-like reactions, as revealed by the hydroxyl radicals-capturing experiments. Furthermore, the feasibility of practical applications for the developed Fe-MoS 2 nanozyme based colorimetric methods was demonstrated for glucose in blood sample. Importantly, an insight can be thereby obtained into the design of different nanozymes with enhanced catalysis designed by doping heteroatoms like Fe, promising for the catalysis-based applications in the biomedical analysis, food safety, and environmental monitoring fields.
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高影响因子
MATERIALS & DESIGN
·
2020
·
IF 6.289
Shuaida Zhu,Xiong Cao,Xiaoqing Cao,Yuqi Feng,Xinbing Lin,Kehua Han,Xiaoxia Li,Peng Deng
In this paper, we studied the effect of M-doped graphitic carbon nitride (M-g-C 3 N 4 , M = Fe, Nd, Ce, Zr, U) as a catalyst for the thermal decomposition of ammonium perchlorate-based molecular perovskite DAP-4. DAP-4 was synthesized by a molecular assembly strategy. G-C 3 N 4 and M-g-C 3 N 4 composite samples were prepared by pyrolytic and co-sintering methods. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy-energy dispersion X-ray spectrometry, and X-ray photoelectron spectroscopy were used to characterize the morphology, structure, element distribution, and element chemical states of the catalysts. Differential scanning calorimetry was used to elevate the thermal catalytic decomposition effect of g-C 3 N 4 and M-g-C 3 N 4 on DAP-4. The results showed that g-C 3 N 4 and M-g-C 3 N 4 have catalytic activity for the thermal decomposition of DAP-4. Among the tested catalysts, Fe-g-C 3 N 4 had the best catalytic activity for the thermal decomposition of DAP-4, as well as advantages over pure g-C 3 N 4 and other M-g-C 3 N 4 catalysts. Especially, Fe-g-C 3 N 4 reduced the peak temperature of DAP-4 by 75.3 °C, increased heat release by 464 J g −1 , and decreased activation energy by 55.5 kJ mol −1 . Moreover, a possible catalytic mechanism is proposed. This work may offer a new way to promote the application of DAP-4 in the field of solid rocket propellants.
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高影响因子
CARBON
·
2025
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IF 11.6
Hao Lu,Xianchu Wang,Chenyu Wang,Qihang Wang,Jingjing Xie,Weiming Wang,Zhengyi Fu,Zhaoyong Zou
Zeolitic Imidazolate Frameworks (ZIF-8) has emerged as promising candidate for alleviating the aggregation of Fe 3 N-catalysts, exhibiting significantly improved oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) for rechargeable zinc-air batteries. To further improve the catalytic performance, it is crucial to fabricate ZIF-8 with hierarchically porous structures, which remains challenging due to the rapid crystallization kinetics and the weak interactions. Inspired by biological porous materials, we developed a novel method using 1,3,5-trimethylbenzene TMB as a mediating molecule to dynamically regulate the organic-inorganic interface between templates and ZIF-8 precursors, achieving the micro-meso-macropores of ZIF-8, which synergistically enhances mass transport and active site accessibility. Additionally, TMB preserves the weakly alkaline environment required for ZIFs’ structural integrity by leveraging its hydrophobic co-solvent effect. The as-synthesized Fe 3 N-HPZIF-8 catalyst integrates Fe 3 N active sites, hierarchically porous structures, and pyrrolic-N dopants, resulting in the exceptional bifunctional activity in alkaline media (ΔE = 0.619 V), exceeding most benchmark catalysts. When integrated into zinc-air batteries, a peak power density of 205.2 mW cm -2 is achieved. This work presents a generalizable synthetic approach for high-performance metal-air battery catalysts.
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高影响因子
ACS Applied Bio Materials
·
2025
·
IF 4.7
Xueqi Liang,Yingying Cai,Zhen Liu,Nan Wang,Ahmed Mohamed Omer,Junhong Ling,Xiao−kun Ouyang
Ferroptosis, an iron-dependent form of regulated cell death characterized by lipid peroxidation and redox imbalance, has emerged as a promising strategy for treating drug-resistant cancers. However, its therapeutic efficacy is often limited by the antioxidant-rich tumor microenvironment (TME), which inhibits reactive oxygen species (ROS) accumulation. In this study, we introduced a tumor-responsive nanoplatform (MLCT) designed to synergistically amplify ferroptosis through a combination of iron catalysis, calcium overload, nitric oxide (NO) release, and photothermal stimulation. The MLCT platform consisted of mesoporous polydopamine (MPDA), calcium peroxide (CaO2), l-arginine (LA), and a tannic acid-Fe3+ (TA-Fe) shell, facilitating TME-responsive release of therapeutic agents. In vitro, MLCT effectively depleted glutathione (GSH) and sustained NO generation, resulting in elevated ROS levels and mitochondrial dysfunction. Additionally, upon near-infrared (NIR) irradiation, localized hyperthermia further potentiated ferroptotic activity. In vivo, MLCT combined with NIR treatment resulted in an 86.34% reduction in tumor growth, with minimal systemic toxicity. These results highlighted the potential of MLCT as a precision-engineered ferroptosis platform for enhanced cancer therapy.
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·Vol. 14
·期 1
·120955
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IF 7.2
Yingchao Li,Juntan Wang,Zhanyu Guo,Xiaofang Ouyang,Peng Ju,Hua Yin
This study presents a novel FeMg-layered double hydroxide (LDH) modified biochar composite (LB) designed to synergistically address phosphate recovery from wastewater and heavy metal immobilization in contaminated soil. The composite exhibits an exceptional phosphate adsorption capacity of 25.02 mg/g, representing a 169.00 % increase compared to pristine biochar. The improved performance results from precipitation and anion exchange within the LDH layers. And the competitive adsorption tests further confirm that LB better retains phosphate in simulated wastewater. When repurposed as a soil amendment, phosphate-laden LB (P-LB) demonstrates remarkable heavy metal immobilization efficiencies, achieving 41.23 % Pb, 30.52 % Cu and 25.63 % As immobilization at a 1.0 % dosage, representing an 18.70–26.42 % improvement over LB. Beyond its metal stabilization capabilities, P-LB effectively enhances soil phosphorus cycling, increasing total phosphorus by 14.41 % and bioavailable phosphorus by 9.02 %. Furthermore, the remediated soil exhibits significantly enhanced enzymatic activity, with urease and sucrase activities increasing by 21.38 % and 380.10 %, respectively. Pot experiments confirm the agronomic benefits of P-LB, demonstrating a 68.16 % increase in plant height and a 39.27 % increase in biomass accumulation in the remediated soil. This integrated approach, leveraging LDH-phosphate synergy, not only achieves phosphate recovery in sewage but also realizes metal immobilization and soil fertility remediation in contaminated soil.
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高影响因子
WATER RESEARCH
·
2024
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IF 11.4
Zhaobin Liu,Shiliang Heng,Qicai Dai,Yijing Gao,Yule Han,Lingtian Hu,Yisheng Liu,Xueqin Lu,Guangyin Zhen
Waste activated sludge properties vary widely with different regions due to the difference in living standards and geographical distribution, making a big challenge to developing a universally effective sludge dewatering technique. The Fe(II)-activated persulfate (S 2 O 8 2− ) oxidation process shows excellent ability to disrupt sludge cells and extracellular polymeric substances (EPS), and release bound water from sludge flocs. In this study, the discrepancies in the physicochemical characteristics of sludge samples from seven representative cities in China (e.g., dewaterability, EPS composition, surface charge, microbial community, relative abundance of antibiotic resistance genes (ARGs), etc.) were investigated, and the role of Fe(II)-S 2 O 8 2− oxidation in enhancing removal of antibiotic resistance genes and dewatering ability were explored. The results showed significant differences between the EPS distribution and chemical composition of sludge samples due to different treatment processes, effluent sources, and regions. The Fe(II)-S 2 O 8 2− oxidation pretreatment had a good enhancement of sludge dewatering capacity (up to 76 %). Microbial analysis showed that the microbial community in each sludge varied significantly depending on the types of wastewater, the wastewater treatment processes, and the regions, but Fe(II)-S 2 O 8 2− oxidation was able to attack and rupture the sludge zoogloea indiscriminately. Genetic analysis further showed that a considerable number of ARGs were detected in all of these sludge samples and that Fe(II)-S 2 O 8 2− oxidation was effective in removing ARGs by higher than 90 %. The highly active radicals (e.g., SO 4 − ·, ·OH) produced in this process caused drastic damage to sludge microbial cells and DNA stability while liberating the EPS/cell-bound water. Co-occurrence network analysis highlighted a positive correlation between population distribution and ARGs abundance, while variations in microbial communities were linked to regional differences in living standards and level of economic development. Despite these variations, the Fe(II)-S 2 O 8 2− oxidation consistently achieved excellent performance in both ARGs removal and sludge dewatering. The significant modularity of associations between different microbial communities also confirms its ability to reduce horizontal gene transfer (HGT) by scavenging microbes.
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高影响因子
Journal of Water Process Engineering
·
2023
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IF 7
Guobin Li,Zhenbang Han,Tao Wang,Minghui Zhang,Qiaoqiao Liu,Tong Zhang,Xiaoming Zhao
Fe-doped graphitic carbon nitride (g-C 3 N 4 ) represents an attractive photo-Fenton catalyst for organic contaminants removal, but the practical performances still need to be improved for large-scale application. Herein, we developed a high-efficiency photo-Fenton catalyst by anchoring Fe-g-C 3 N 4 onto an amidoxime-functionalized polyacrylonitrile fiber (AP) substrate through a simple hydrothermal approach. Comprehensive characterizations demonstrate the strong catalyst-support interaction via the axial coordination bonding between -OH groups and Fe 3+ , which could induce electric polarization of Fe-g-C 3 N 4 to promote the H 2 O 2 adsorption and activation. The fibrous support could also accelerate the photoelectrons transfer from g-C 3 N 4 to Fe 3+ by strengthening the d-π conjugated large π bond, as well as alleviate the backflow recombination from Fe 3+ to g-C 3 N 4 through the electron sink effect. These synergistic qualities resulted in superior photo-Fenton performance for organic contaminants removal, which delivered 4.0-fold higher degradation kinetics than that of the Fe doped g-C 3 N 4 powder catalyst and exhibited unexpected high activity at strong basic environment (pH = 12). Our work demonstrates an ingenious and simple way to design exceptional photo-Fenton catalysts for environmental remediation.
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高影响因子
Journal of Materials Chemistry A
·
2025
·Vol. 13
·期 35
·29590-29597
·
IF 9.5
Pengyu Wei,Peng Fu,Liuzhen Bian,Changyang Liu,jianquan Gao,Lei Xing,Chaoyi Wang,Lilin Yang,Yong Li,Shengli An
The development of high-performance perovskite cathodes is critical for advancing carbon-neutral energy technologies through efficient CO2-to-fuel conversion in solid oxide electrolysis cells (SOECs). In this work, we present a groundbreaking dual-functional engineering strategy that simultaneously achieves in situ exsolution of Fe nanoparticles and oxygen vacancy formation in Sr2−xFe1.5Mo0.5O6−δ perovskites. By correlating A-site deficiency with tailored reduction protocols, we demonstrate precise control over Fe nanoparticle density and the oxygen vacancy concentration, synergistically addressing the dual bottlenecks of CO2 activation kinetics and ionic transport limitations. The engineered cathode delivers record-breaking performance: −0.92 A cm−2 (H2O electrolysis@800 °C/1.3 V) and −1.58 A cm−2 (co-electrolysis@800 °C/1.5 V), surpassing that of benchmark perovskites. The dual-modified architecture demonstrates unprecedented durability with 120 h of steam electrolysis and 80 h of co-electrolysis operation at 750 °C/0.5 A cm−2. This work establishes a materials design paradigm that directly bridges atomic-scale defect engineering with macroscale energy conversion efficiency, offering a scalable pathway for transforming industrial CO2 emissions into renewable fuels.
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高影响因子
ENERGY AND BUILDINGS
·
2025
·
IF 7.1
Gonghui Gu,Xinchi Xu,Jinsheng Han,Lin Wan-Wendner,Zhiji Gao,Rongze Fu,Chuanqing Fu,Tao Ma
In this study, a soft magnetic geopolymer (SMG) co-modified with nanomagnetic fluid and spherical micron-sized Fe powders was developed for enhancing the energy conversion in airport pavement induction heating. The effects of Fe particle size on the microstructure, electromagnetic behavior, and mechanical performance of SMG were systematically investigated, with a focus on the size-dependent coupling mechanisms. Results show that Fe powder with a particle size no less than 150 μm provides pore-filling and skeletal reinforcement, leading to improved compressive strength and stable magnetic permeability. In contrast, finer particles significantly increase the specific surface area, which intensifies internal demagnetizing fields and magnetic flux pinning, thereby reducing saturation magnetization and coercivity. Simultaneously, excessive water demand caused by fine particles suppresses geopolymer gel formation, resulting in increased porosity and decreased mechanical strength. COMSOL simulations confirm the development of localized demagnetizing fields around smaller Fe particles. Indoor induction heating tests further reveal that the incorporation of SMG improved the energy conversion efficiency during induction heating by 19.4 % when the Fe powder particle size was not less than 150 μm, demonstrating its potential for energy-responsive, structure-integrated infrastructure.
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高影响因子
ACS Nano
·
2025
·
IF 16
Fenghong Lu,Yuanyuan Zhang,Lingbo Zong,Chengbin Wang,Kaicai Fan,Cheng-Hao Chuang,Porun Liu,Zumin Wang,Lei Wang,Bin Li
The rational design of efficient oxygen reduction reaction (ORR) catalysts with maximized atom utilization is essential for advancing the oxygen depolarized cathode technology. Here, we report atomically dispersed Fe, P heteronuclear catalytic pairs on hierarchical porous carbon, in which the hydrogen bond between Fe, P catalytic pairs and ORR intermediates significantly enhances the adsorption/desorption kinetics and lowers the rate-determining step barrier of OH* desorption. Thus, Fe,P/HPC delivers an alkaline ORR performance with a half-wave potential (E1/2) of 0.92 V and retains ∼90% of the initial activity even after 150 h operation. In addition, Fe,P/HPC achieves an E1/2 of 0.74 V in 0.1 M HClO4. The Fe,P/HPC-based aqueous Zn–air battery (A-ZAB) achieves a high power density of 262 mW cm–2 and exhibits enhanced stability, sustaining a minimal voltage gap over 2800 h of constant-current cycling. Moreover, the quasi-solid-state Zn–air battery (QSS-ZAB) delivers a large open-circuit voltage of 1.52 V, while maintaining a cycling stability for over 95 h at 0.5, 1, and 2 mA cm–2, respectively. In the chlor-alkali process, the Fe,P/HPC||RuO2 electrolyzer enables a large current density of 300 mA cm–2 at 1.66 V and maintains stability over 110 h. The present work pioneers the designing and construction of atomic-level heteronuclear catalysts for practical and durable cathode.
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PubMed
高影响因子
TALANTA
·
2025
·
IF 6.1
Haotian Chen,Zimo Chen,Hanbing Yao,Yujuan Zhan,Binyu Xiao,Shuangshuang Liu,Jiayi Yan,Yifu Li,Chang Shu
Dopamine (DA) is an essential biomarker implicated in the diagnosis of neurological diseases. In this work, we designed a dual-enzyme mimetic activity MIL-101(Fe) that catalyzed specific cyclization reaction between 1,3-dihydroxynaphthalene (NR) and dopamine. As the concentration of dopamine increased, the fluorescence emission of NR at 440 nm was markedly quenched, concomitant with the emergence of a new fluorophore exhibiting enhanced emission at 480 nm and increased absorbance at 462 nm. The ratiometric fluorescence/colorimetric dual-mode detection strategy provided intrinsic self-calibration to effectively mitigate signal variations. Furthermore, a linear correlation was established for ratiometric fluorescence signal across the range of 0.25–35 μM (R 2 = 0.999), and similarly for colorimetric absorbance (R 2 = 0.999). This method provided an accurate, specific, sensitive and high-throughput detection of dopamine in human serum.
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·Vol. 13
·期 6
·120336
·
IF 7.2
Ganchen Zhou,Zhiqiang Chen,Xiaoying Jin,Zhibiao Chen,Zuliang Chen
Rare earth elements (REEs) have emerged as critical metallic resources in modern industries due to their unique physicochemical properties. However, rare earth elements are inevitably discharged into environments during mining operations, leading to impact the ecosystem and to loss rare earth elements. To address this, the carbonized Fe/Mn nanomaterials (C-Fe/Mn) were synthesized through green carbothermal reduction to achieve efficient recovery of rare earth elements. It can be seen that the maximum adsorption efficiencies of REEs by synthesized material were yttrium (Y(Ⅲ) 98.28 %), lanthanum (La(Ⅲ) 97.37 %), dysprosium (Dy(Ⅲ) 88.75 %), and ytterbium (Yb(Ⅲ) 77.27 %), respectively. Through advanced characterization, C-Fe/Mn's magnetic properties have been confirmed, which enables direct recovery from wastewater and easy separation in application. The results showed that the carbon coating provides additional active sites, thereby enhancing its adsorption capacity, while the presence of zerovalent iron lattice improves its stability. Therefore, its efficient adsorption of rare earth elements is mainly attributed to the combined effect of complexation and electrostatic force. Finally, column experiments demonstrated that rare earth elements can be effectively removed and desorbed by C-Fe/Mn under continuous flow, indicating its potential for practical application. Overall, this approach not only mitigates environmental pollution but also promotes resource recycling, offering dual economic and ecological benefits.
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高影响因子
危险品化学品经营许可证（带存储）