ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Liyun Zhang,Yi He,Lan Ma,Jingyu Chen,Yi Fan,Shihong Zhang,Heng shi,Zhenyu Li,Pingya Luo
Filtration membranes, with good antifouling performance and robust solvent resistance (e.g., organic solvents or highly acidic/alkaline/saline solvents), that can effectively purify complex polluted water systems are especially demanded in practice but present a challenge to be conquered. Herein, a simple method has been demonstrated to address the obstacles, applying the stabilized polyacrylonitrile (SPAN) nanofiber/β-FeOOH nanorod composite membrane as a model. In this work, simply stabilizing PAN nanofibers in air can achieve robust solvent resistance against organic solvents and strong inorganic acidic/alkaline/saline solutions. Hydrophilic β-FeOOH nanorods were anchored onto SPAN nanofibers of our electrospun membrane and achieve superhydrophilicity (0°)/underwater superoleophobicity (>155°) for various oils. More importantly, the SPAN/β-FeOOH nanofibrous membrane exhibits robust mechanical strength (274 MPa of Young’s modulus), excellent chemical stability, fast separation flux (2532–10146 L m–2 h–1), and satisfying removal ratio (>98.2%) against insoluble oils and soluble cationic dyes. In addition, good photocatalytic activity against organic pollutants provides our membranes with excellent flux restorability and a long-term use capacity. These outstanding performances endow our membrane with a great potential application in purifying polluted aquatic systems in worldly harsh conditions.
研究领域:
材料科学
·
环境工程
·
纳米技术
·
水处理
✓ 已验证
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2016
·
IF 4.803
Na Li,ChunYi Zhi,Haiyan Zhang
The preparation of high specific-capacity pseudocapacitive transition-metal-oxide/hydroxide (TMH) materials into transparent micro-structure electrodes is a great challenge and has become the bottleneck restricting the performance of transparent flexible supercapacitors . Beyond that, extending the operating voltage window is an urgent need for improving energy density . Here, Co(OH) 2 nanosheets and amorphous FeOOH nanowires were prepared into transparent films through a simple and scalable bio-inspired method at the air-solution interface. Both nanostructures are enwrapped in graphene shells (Co@Gr-TFandFe@Gr-TF) for use as transparent asymmetric pseudocapacitive electrodes. The unique encapsulation structures (1) provide pseudocapacitive electrode materials, especially an amorphous FeOOH structure cathode, (2) build up rapid three-dimensional electron and ion transport pathways together with the underlying ITO layer, (3) alleviate the exfoliation and dissolution of the active materials into electrolyte, and (4) extend the potential window of the FeOOH cathode from −0.8 ∼ 0 V to −1.2 ∼ 0 V with minimal cycling stability degradation. The asymmetric transparent and flexible supercapacitor based on Co@Gr-TF//Fe@Gr-TF operated at 1.8 V exhibits good transparency (50.5% at 550 nm), high specific capacitance (25.5 mF cm −2 , one order higher than the maximum value reported for FFT-GP), and high energy density (1.04 mWh cm −3 , comparable to that of nontransparent devices) as well as a long cycle life (10 000 cycles) with high-capacity retention (83.5%).
研究领域:
材料科学
·
纳米科技
·
电化学
·
能源存储
·
柔性电子学
·
功能薄膜
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Heng Yang,Xiaoke Jia,Ting Wang,Jiangge Li,Wei Geng,Mohsen Adeli,Tian Ma,Yang Gao,Chong Cheng,Weifeng Zhao
Chronic refractory wounds present substantial clinical difficulties, owing to their complex wound microenvironments featuring bacterial colonization, sustained inflammation, and deficient angiogenesis. Existing treatment options often fall short of concurrently overcoming these interconnected obstacles, underscoring the demand for integrated therapeutic platforms that combine antimicrobial, anti-inflammatory, and pro-angiogenic properties. Drawing inspiration from natural peroxisomes, a lattice-reconstructed Ru-clusters are designed on FeOOH-based self-adaptive artificial peroxisome with programmed reactive oxygen species (ROS) regulation for infectious and inflammatory chronic wounds. Within this architecture, electron-rich Ru clusters and hole-rich FeOOH domains establish an efficient electron-transfer network. Density functional theory calculations demonstrate that this distinctive electronic structure lowers reaction energy barriers, enabling pH-switchable ROS-catalytic behaviors. Under acidic wound pH, LR-RuC@FeOOH catalyzes ROS generation to disrupt bacterial metabolism and eliminate infections, while under neutral conditions, it efficiently scavenges ROS to alleviate oxidative stress and support tissue repair, enabling a logically sequenced therapeutic progression from infection control to inflammation resolution. In vivo experiments using diabetic foot ulcers confirmed that LR-RuC@FeOOH significantly enhanced bacterial clearance, attenuated inflammatory responses, stimulated neovascularization, and accelerated wound closure. These results position LR-RuC@FeOOH as an artificial peroxisome with stage-specific therapies and promising translational potential for the treatment of refractory diabetic wounds and other infection-related pathologies.
研究领域:
生物医学工程
·
伤口愈合
·
纳米医学
·
活性氧调控
·
抗菌治疗
·
炎症性疾病
✓ 已验证
DOI
PubMed
高影响因子
Energy & Environmental Science
·
2018
·Vol. 12
·期 1
·194-205
·
IF 30.067
Jin-Qi Xie,Ya-Qiang Ji,Jia-Hui Kang,Jia-Li Sheng,Da-Sha Mao,Xian-Zhu Fu,Rong Sun,Ching-Ping Wong
Although integrated energy storage devices, such as in-plane micro-supercapacitors (MSCs), are attractive for powering portable microelectronic devices, it is still challenging to develop patterning techniques with high practicability and to rationally design and fabricate electrochemically active materials using feasible procedures. Here, we propose a facile solution-immersion method of fabricating interdigitated copper electrodes with an in situ converted array of Cu(OH)2@FeOOH nanotubes (NTs). A copper current collector can be patterned together with widely employed copper circuits by a facile copper-patterning approach based on cost-effective electroless catalytic deposition of copper with patterned Ag catalysts, which is greatly conducive to the integration of in-plane energy storage devices into microelectronic systems. Furthermore, the rationally designed array of Cu(OH)2@FeOOH NTs, which was converted in situ from the patterned copper electrodes, was demonstrated to be an excellent electrochemically active material with advantages that included a porous structure with a large specific surface area, excellent wettability by the electrolyte, short ion diffusion lengths and one-dimensional electron transport pathway. The resulting MSC devices that were fabricated with the interdigitated Cu(OH)2@FeOOH/Cu electrodes exhibited a high specific capacitance (58.0 mF cm−2 at 0.1 mA cm−2), a high energy density (18.07 μW h cm−2), excellent cycling stability and desirable flexibility.
研究领域:
材料科学
·
电化学
·
纳米技术
·
储能设备
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Haolun Li,Mingxin Lyu,Yanhua Lai,Xingxing Cheng,Zhen Dong
Spinel oxides are widely used to enhance photoanodes’ photoelectrochemical (PEC) water oxidation performance. In this paper, we demonstrate that a p-type photothermal MnCo2O4 layer, inserted between BiVO4 and FeOOH cocatalysts, can significantly enhance PEC performance. On the one hand, the charge recombination is greatly suppressed since p-type MnCo2O4 can form a p–n heterojunction with n-type BiVO4. On the other hand, upon near-infrared (NIR) light irradiation, the deposited MnCo2O4 shows excellent photothermal conversion performance that can further facilitate charge transfer and accelerate the water oxidation process by elevating the operating temperature. In addition, the FeOOH cocatalyst is introduced to fully utilize the holes reaching the surface and further enhance the surface oxygen evolution kinetics. Consequently, the carefully constructed BiVO4/MnCo2O4/FeOOH photoanode shows excellent photocurrent (4.71 mA cm–2) at 1.23 V vs RHE (VRHE) and superior applied bias photon-to-current efficiency (1.62%) at 0.6 VRHE. The photocurrent density maintains more than 90% of the initial photocurrent after 4 h of combined solar and NIR light irradiation. Enhancing the PEC catalytic activity of photoelectrodes using photothermal materials is a simple and effective strategy, which can be used to explore PEC activity enhancement in other photoelectrodes.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 42
·35332-35339
·
IF 3.289
Dan Chen,Xuelian Xiao,Kai Yang
In this work, a novel adsorbent derived from waste eggshell (ES) was used for phosphate and hexavalent chromium adsorption. EDS, XRD, and FTIR analyses demonstrated that α-FeOOH was successfully loaded onto the eggshell, thus increasing the available sorption sites and facilitating the adsorption abilities of phosphate and hexavalent chromium. The maximum phosphate and hexavalent chromium adsorption capacities on α-FeOOH modified eggshell (F-ES) were 248.73 and 41.57 mg g−1, which were much greater than that of the original eggshell 89.74 and 11.81 mg g−1, indicating that the modification process significantly improved the phosphate and hexavalent chromium removal abilities. Besides, the kinetics data were both well fitted with pseudo-first-order, pseudo-second-order, and Richie kinetics models, which proved that the adsorption process onto the eggshell was controlled by multiple mechanisms. In addition, the removal rates of phosphate and hexavalent chromium increased with increasing adsorbent dosage. However, the removal rates showed downward trends with pH increased from 3 to 9 and ionic strength increased from 0 to 0.1 M.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
GREEN CHEMISTRY
·
2025
·
IF 9.2
Sheraz Muhammad,Bowen Yao,Aling Zhou,Zhiyang Huang,Sumayya Khan,Fengli Wei,Zuyang Luo,Tayirjan Taylor Isimjan,Xiulin Yang
Unlocking the full potential of metal-organic frameworks (MOFs) for water-splitting applications requires innovative strategies to enhance their catalytic efficiency and stability. Here, we introduce a Mo-doped Fe-based MOF (MoFe-NH2-BDC) with a unique 2D nanosheet and plate-like morphology to revolutionize the oxygen evolution reaction (OER). Mo incorporation optimizes electronic properties, accelerates charge transfer, and dynamically reconstructs the catalyst surface into highly active FeOOH species, ensuring long-term performance. This next-generation electrocatalyst achieves an ultra-low overpotential of 254 mV at 20 mA cm‒2, with a rapid Tafel slope of 66 mV dec‒1, surpassing conventional RuO2 catalysts. Operando Raman and ATR-FTIR spectroscopy reveal that Mo facilitates an adsorbate evolution mechanism (AEM), stabilizing intermediates and boosting reaction kinetics. In a practical two-electrode system, MoFe-NH2-BDC (+) || Pt/C (−) demonstrates an exceptional cell voltage of 1.58 V at 100 mA cm‒2, maintaining stability for 85 h. These results underscore the transformative impact of Mo doping in MOFs, paving the way for highly efficient, durable, and scalable electrocatalysts for sustainable energy applications.
研究领域:
材料科学
·
电化学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2026
·
IF 4.4
Zhuo-Xuan Li,Min Zhao,Zhao-Jian Li,Zhen Zhang,Xiao-Feng Xu,Yun-Ze Long,Hong-Di Zhang
In this study, an ultrasonic-assisted Fe0/FeOOH triboelectric catalytic system was proposed that converts mechanical energy into electrical energy, which is subsequently converted into chemical energy for the degradation of organic pollutants. The Fe0/FeOOH system exhibits high efficiency, achieving degradation rates of 99.3%, 97.1%, 96.9%, and 88.2% for crystal violet (CV), tetracycline (TC), oxytetracycline (OTC), and chloramphenicol (CHL), respectively, within 15 min. The kinetic constant K for CV degradation is 0.3301 min–1. The triboelectric catalytic degradation efficiency of Fe0/FeOOH increased by more than 300% compared to the single catalyst. EPR and radical scavenging experiments confirm the generation of reactive oxygen species (ROS), including hydroxyl radicals (•OH) and superoxide radicals (•O2–). A model of an electron cloud-potential well is presented to clarify the triboelectric catalysis mechanisms based on the extent of electron cloud overlap and the frequency of charge transfer. LC-MS analysis detected the molecular ion peak of Michler’s ketone (m/z 269, [M + H]+), which, together with the UV–vis peak at 376 nm, supports the conjugated structure cleavage pathway of CV. Furthermore, the Fe0/FeOOH system maintains excellent catalytic performance at high temperatures, demonstrating strong high-temperature resistance, laying a foundation for its practical application.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2011
·
IF 3.723
Xinhong Qiu,Zhanqiang Fang,Bin Liang,Fenglong Gu,Zhencheng Xu
The agglomeration of nanoparticles reduces the surface area and reactivity of nano zero-valent iron (NZVI). In this paper, highly dispersive and reactive NZVI immobilized in mesoporous silica microspheres covered with FeOOH was synthesized to form reactive mesoporous silica microspheres (SiO 2 @FeOOH@Fe). The characteristics of SiO 2 @FeOOH@Fe were analyzed by transmission electron microscopy, Fourier transform infrared spectroscopy simultaneous thermal analysis, X-ray photoelectron spectroscopy, and Brunnaer–Emmett–Teller surface area analysis. The mean particle size of the reactive mesoporous silica microspheres was 450 nm, and its specific surface area was 383.477 m 2 g −1 . The degradation of dcabromodiphenyl ether (BDE209) was followed pseudo-first-order kinetics, and the observed reaction rate constant could be improved by increasing the SiO 2 @FeOOH@Fe dosage and by decreasing the initial BDE209 concentration. The stability and longevity of the immobilized Fe nanoparticles were evaluated by repeatedly renewing the BDE209 solution in the reactor. The stable degradation of BDE209 by SiO 2 @FeOOH@Fe was observed within 10 cycles. Agglomeration-resistance and magnetic separation of SiO 2 @FeOOH@Fe were also performed. The improved dispersion of SiO 2 @FeOOH@Fe in solution after one-month storage and its good performance in magnetic separation indicated that SiO 2 @FeOOH@Fe has the potential to be efficiently applied to environmental remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL MONITORING AND ASSESSMENT
·
2020
·Vol. 192
·期 6
·1-9
·
IF 1.903
Li Xuguang,Elgarhy Abdelbaky Hossam,Hassan Mohamed Elfatih,Chen Yanbo,Liu Guanglong,ElKorashey Reham
Existing research on phosphorus removal from wastewater mostly focused on inorganic phosphorus while ignoring organic phosphorus, which has potential bioavailability. This study aims to provide an innovation for the development of advanced treatment material for both inorganic and organic phosphorus removal in water. In this study, ferrihydrite loaded on the graphene oxide (FeOOH-GO) composite adsorbent was synthesized by surface precipitation method, and its ability to remove both phosphate and diazinon as forms of inorganic and organic phosphorous from water was investigated. Characterization of the loaded composite using X-ray diffraction (XRD), scanning electron microscope (SEM), and Fourier transform-infrared spectroscopy (FTIR) indicated that FeOOH was successfully loaded onto graphene. The results of batch adsorption experiments showed that the adsorbent could remove both inorganic and organic phosphorus compounds simultaneously from water. When FeOOH content is 40%, the equilibrium adsorption amount of FeOOH-GO composite adsorbent for phosphate and diazinon was 5.81 and 23.20 mg g −1 , respectively. Environmental parameters such as pH and initial concentration have important influence on phosphorus removal by FeOOH-GO composite adsorbent and the removal efficiency of the inorganic and organic phosphorus from water decreases by increasing the initial concentration of phosphate and diazinon and the pH. It was concluded that the FeOOH-GO composite adsorbent has great potential to remove both inorganic and organic phosphate simultaneously from contaminated water.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
Journal of Environmental Sciences
·
2025
·
IF 6.3
Mengqi Bu,Li Yi,Yingjie Wen,Minli Wang,Hao Yang,Chaohao Chen,Dengsong Zhang,Xu Chen,Zhiyi Lu
Electro-activating peroxydisulfate (PDS) based on the cathode represents a highly promising advanced oxidation process; however, its longevity is constrained by cathode leaching. In this work, we demonstrate that the γ-FeOOH/Fe Foam and α-Fe 2 O 3 /Fe Foam obtained by engineering a protective layer containing iron and oxygen on Fe Foam exhibit significantly extended service life of 53 h and 47 h, 2.94-fold and 2.61-fold longer than that of the original Fe Foam (18 h), while showing similar pseudo-first-order kinetics. Structural evolution analysis and density functional theory simulations reveal that surface oxygen plays a crucial role in reducing the leaching of Fe from the cathode by immobilizing Fe ions and converting them in-situ into stable Fe 3 O 4 . The electro-activation mechanism of PDS on the cathode, the degradation pathways of atrazine (ATZ), and the effects of operating conditions are systematically investigated and elucidated. This work underscores the pivotal role of surface oxygen in prolonging the longevity of Fe-based cathodes, thereby contributing to the development of protective layers.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Zonghuai Zhang,Beibei He,Liangjian Chen,Huanwen Wang,Rui Wang,Ling Zhao,Yansheng Gong
The development of an efficient, robust, and low-cost catalyst for water electrolysis is critically important for renewable energy conversion. Herein, we achieve a significant improvement in electrocatalytic activity for both the oxygen-evolution reaction (OER) and the hydrogen-evolution reaction (HER) by constructing a novel hierarchical PrBa0.5Sr0.5Co2O5+δ (PBSC)@FeOOH catalyst. The optimized PBSC@FeOOH-20 catalyst consisted of layered perovskite PBSC nanorods and 20 nm thick amorphous FeOOH nanoflakes exhibiting an excellent electrocatalytic activity for the OER and the HER in 0.1 M KOH media, delivering a current density of 10 mA cm–2 at overpotentials of 390 mV for the OER and 280 mV for the HER, respectively. The substantially enhanced performance is probably attributed to the hierarchical nanostructure, the good charge-transfer capability, and the strong electronic interactions of FeOOH and PBSC. Importantly, an alkaline electrolyzer-integrated PBSC@FeOOH-20 catalyst as both the anode and cathode shows a highly active overall water splitting with a low voltage of 1.638 V at 10 mA cm–2 and high stability during continuous operation. This study provides new insights into exploring efficient bifunctional catalysts for overall water splitting, and it suggests that the rational design of the oxyhydroxide/perovskite heterostructure shows great potential as a promising type of electrocatalysts.
研究领域:
电化学
·
能源材料
·
催化
·
可再生能源
·
纳米材料
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）