CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Juan Du,Hao Fang,Jialiang Ma,Jing Lin,Shikuo Li,Yu Jiang,Fangzhi Huang
Synergistic photothermal-magnetothermal activation overcomes environmental interference (e.g., cloud cover) that critically limits solar evaporator efficiency, enabling robust all-weather vapor generation. Herein, we demonstrate in-situ synthesis of a covalently integrated Fe₃O₄/hydrogel composite via ice-templating and interfacial covalent bonding engineering. Si-O-Fe bonds anchor KH-570 onto Fe₃O₄, enabling copolymerization of surface-grafted methacryloyloxy groups with acrylamide monomers for covalent network grafting, while programmed gravitational sedimentation yields a hierarchical porous hydrophilic magnetic gel solar interfacial evaporator (MSE) with magnetothermal interface. This architecture reduces evaporation enthalpy, achieving 2.33 kg m −2 h −1 under 1 sun. Significantly, synergistic activation by an alternating magnetic field and 1 sun irradiation boosts the evaporation rate for 3.5 wt% saline water to 2.94 kg m −2 h −1 . This work establishes the magnetothermal-photothermal synergy within the covalently integrated MSE as an effective material design paradigm for all-weather solar desalination.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Zheng Wang,Keizo Nakagawa,Kecheng Guan,Aiwen Zhang,Yasunao Okamoto,Atsushi Matsuoka,Eiji Kamio,Tomohisa Yoshioka,Hideto Matsuyama
s The stability of solvent-resistant nanofiltration (SRNF) membranes, such as integrally skinned asymmetric (ISA) and thin-film composite (TFC) membranes, in polar aprotic solvents must be improved if they are to meet increasingly complex industrial demands. The stability of the former membranes can be improved by forming crosslinked rigid chains, such as polybenzimidazoles and polyimides, but this requires time-consuming treatment processes. Conversely, the latter membranes are easy to fabricate but lack efficient active sites for crosslinking and structural rigidity. Herein, we present a fabrication strategy combining the characteristics of both types of membranes. We first utilize amino-functional porphyrins as polyaromatic units to form rigid polyamide networks by vacuum-assisted interfacial polymerization, simultaneously providing active sites for further crosslinking, which is accomplished by immersion in FeCl 2 /dimethyl sulfoxide (DMSO) solution to directly establish Fe-O-Fe bridges between porphyrin centers to form a stable network. The Fe-O-Fe-bridged porphyrin networks are solvent-stable in DMSO. Furthermore, they achieve outstanding molecular separation (96.2% rejection of methyl orange, 327 Da) and limited molecular-weight-cutoff change (from 360 to 420 Da) during alternating MeOH and DMSO filtration, along with long-term recovery efficiency (> 96.7% over seven days). Thus, our study provides a promising strategy for the facile development and fabrication of efficient, robust SRNF membranes.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Water Process Engineering
·
2026
·
IF 6.6
Youde Zhang,Kangping Cui,Zhimeng Li,Tao Jiang,Shuhan Yang
Construction of recoverable magnetic Fe₃O₄-NH₂/UiO-66/SiO₂–silica seed for CaF₂ crystallization. • Composite seed directs fluoride conversion from wastewater to CaF₂ solid. • UiO-66/SiO₂ interface promotes ion enrichment and heterogeneous nucleation. • Magnetic recovery reduces the loss of fine CaF₂-loaded seed particles. • Integration of fluoride removal, CaF₂ recovery and solid-liquid separation. Calcium-based precipitation is widely used for treating concentrated fluoride wastewater, but rapid homogeneous nucleation often generates fine CaF₂ particles that are difficult to recover. In this study, a silica-supported Fe₃O₄-NH₂/UiO-66 composite was developed as a magnetically recoverable crystallization seed for directing CaF₂ formation. At an initial fluoride concentration of 2000 mg/L, a Ca:F molar ratio of 0.8:1, 0.5 g seed dosage, pH 7–8, and 25 °C reduced residual fluoride to 2.56 mg/L, corresponding to 99.87% removal. Ca 2+ -free tests yielded equilibrium fluoride uptakes of 570 and 755 mg/g for UiO-66 and the composite, respectively, indicating that adsorption contributed to interfacial enrichment but was insufficient to account for the high fluoride conversion after Ca 2+ addition. Thermodynamic analysis showed that the initial saturation index increased from 3.1 to 7.5 and relative supersaturation from 28.9 to 288 as the initial fluoride concentration increased from 250 to 2000 mg/L. The crystallization rate followed a supersaturation-dependent power law with a kinetic exponent of 2.146 (R 2 = 0.993). After 8 cycles, fluoride-removal and magnetic-recovery efficiencies remained at 80.09% and 80.50%, respectively. In actual industrial wastewater, 98.82% fluoride removal was achieved after pH adjustment to 7. These results demonstrate the potential of Fe₃O₄-NH₂/UiO-66/SiO₂ as a reusable crystallization seed for fluoride recovery.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2026
·
IF 5.9
Xuan Shang,Mingyue He,Huiying Jiang,Fangying Jiang,Deping Wang,Jimin Cao,Yan Tan,Jigen Li,Yanlin Feng,Xin Zhou
Cancer remains a global health challenge, calling for integrated strategies that combine precise diagnosis with synergistic treatment. Although glucose oxidase (GOx)-mediated starvation therapy disrupts tumor metabolism by converting glucose into cytotoxic hydrogen peroxide (H 2 O 2 ), its clinical translation is hindered by inefficient delivery and insufficient monotherapy efficacy. To address these issues, we developed a multifunctional nanoplatform by encapsulating GOx within hollow porous superparamagnetic Fe 3 O 4 nanoparticles (Fe 3 O 4 -GOx NPs) to preserve its catalytic activity and enable high loading capacity. This system simultaneously enables magnetic resonance imaging (MRI), photothermal therapy, and enzyme-mediated catalytic intervention. In vitro studies demonstrated strong T 2 -weighted MRI contrast for precise tumor localization, together with near-infrared laser-triggered hyperthermia that enhance the efficacy of GOx-mediated starvation therapy, elevating oxidative stress and promoting apoptosis in 4T1 cells. In 4T1 tumor-bearing mice, a single administration of Fe 3 O 4 -GOx NPs combined with laser irradiation elicited potent tumor suppression through the synergistic effects of intratumoral ROS generation, glucose depletion, and localized photothermal ablation, outperforming either modality alone. Histopathological assessment revealed negligible systemic toxicity and preserved organ integrity. This work presents an integrated theranostic nanoplatform that unites tumor-targeted imaging, enzyme- driven metabolism intervention, and photothermal therapy into a single system, offering a promising strategy for precision cancer management.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Ji-Ying Song,Lei Pan,Fu-Hao Zhang,Xin-Yun Song,Qi Wu
The residues of tetracycline antibiotics (TCs) in aquatic environments have led to pressing environmental issues, necessitating the development of efficient removal technologies. In this study, we constructed an adsorption-degradation synergistic system based on Fe₃O₄ nanoparticles/graphene oxide/layered double hydroxides (Fe₃O₄/GO/LDHs) for the removal of TCs from water. This Fe₃O₄/GO/LDHs composite ingeniously combines the adsorption advantages of both GO and LDHs: GO serves as a growth substrate for LDHs, effectively preventing the LDHs from agglomerating into bulk masses, while LDHs also inhibit the interlayer stacking of GO. This leads to enhanced specific surface area of up to 581.7 m 2 /g, establishing a robust structural foundation for efficient adsorption. The incorporation of Fe₃O₄ nanoparticles not only endows the material with excellent magnetism for convenient magnetic separation and recovery but also utilizes its peroxidase-like activity to achieve catalytic degradation. The equilibrium adsorption capacities of Fe₃O₄/GO/LDHs for tetracycline, oxytetracycline, and chlortetracycline reached 676.5 mg/g, 814.1 mg/g, and 808.1 mg/g, respectively, primarily driven by electrostatic, π-π and complexation interactions. In the presence of H₂O₂, Fe₃O₄/GO/LDHs activating H₂O₂ to generate reactive oxygen species, achieving over 90% degradation rate within 1 h, demonstrating strong catalytic capability. Integrating adsorption with in-situ degradation, Fe₃O₄/GO/LDHs functions as a network of micro-reactor factories, rapidly concentrating pollutants at catalytic active sites and creating a high-local-concentration microenvironment that dramatically accelerates catalytic reactions, thereby enhancing overall degradation efficiency. This study advances the development of adsorption-degradation bifunctional nanozymes for water purification.
✓ 已验证
产品关联
DOI
高影响因子
IEEE SENSORS JOURNAL
·
2024
·Vol. 24
·期 22
·36239-36246
·
IF 4.3
Dong Zhao,Honglie Chen,Kun Yang,Haoyu Wang,Xing Guo,Yang Ge,Xiushan Dong,Shengbo Sang
The application of competitive immunoassay brings many advantages to the detection of trace biomolecules and has the potential to be applied to urine-based clinical practice. However, this type of detection method has strict requirements for secondary antibody incubation processes and analysis equipment, leading to strong demands for convenient, rapid, and inexpensive detection platforms. In this study, a mechanical competitive immunosensor (MCI) was proposed for the detection of human serum albumin (HSA) based on goat anti-rabbit @Fe2O3 magnetic beads with magnetic sensitization. With the doping of Fe2O3, the conversion layer of MCI responds more accurately and rapidly to stress. In addition, goat anti-rabbit conjugated with animated Fe2O3 nanoparticles were introduced as secondary antibodies for signal amplification. Under the synergistic effect of the magnetic force of magnetic beads and the stress caused by the specific binding of antigen and antibody, the deformation of the film was amplified, which can effectively change the conductive pathway formed by doped carbon nanotubes, resulting in a larger output electric signal. Through competitive immunoassay for HSA, a limit of detection (LOD) of 68 ng/mL was achieved, which was an order of magnitude lower than direct detection methods. With high reproducibility and stability, MCI demonstrated effectiveness in the detection of HSA at a clinically significant concentration range (0.1–
$50 \; \mu $
g/mL). Moreover, MCI showed excellent specificity and selectivity, which held promise to offer an alternative tool for clinical diagnosis of urine HSA levels in nephrotic patients.
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Mengyang Xu,Bingqing Chang,Jinze Li,Huiqin Wang,Pengwei Huo
The assembly of different Metal organic framework (MOFs) into hybrid heterostructures has proven to be a promising strategy that can effectively break through the limited regulatory capacity of single metal sites. Here, an S-scheme heterostructure (Fe 3 Ni-MOF) based on homologous ligands (1,4-phthalic acid) of ultra-thin Ni-MOF and Fe-MOF nanoparticles with directional electron transport channels, was developed and used it for photoreduction of CO 2 . Under the S-scheme electric field mechanism, the photogenerated carrier can achieve efficient directional separation through Fe–O–Ni atomic bond, which significantly reduces the energy barrier of the rate-determining step. Results show that the performance of Fe 3 Ni-MOF (63.5 μmol g –1 ) was 20 and 3.2 times higher than that of Ni-MOF and Fe-MOF, respectively, and exhibits excellent CO selectivity (96.4%) and stability. Transmission electron microscopy and atomic force microscopy revealed the two-molecular-layers structure of Ni-MOF and the micro-assembly structure of Fe 3 Ni-MOF, which can shorten the electron transport distance and increase the molecular mass transfer rate. X-ray photoelectron spectroscopy, electron spin resonance and electron density difference calculations reveal that interfacial electric fields and atomic bonds work together to promote directional carrier separation, resulting in the accumulation of holes on Ni-MOF and electrons on Fe-MOF. The Gibbs free energy calculation and in-situ Fourier transformed infrared spectroscopy validate that the micro-assembled S-scheme heterostructures with directional electron transport channels can significantly reduce the activation energy barrier of the reaction. This study not only proves the feasibility of constructing MOFs S-scheme heterostructures using homologous ligands, but also provides a new way to overcome the limitations of monometallic MOFs. This strategy is expected to open up a new avenue to design efficient photocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 14
·9219-9229
·
IF 4.4
Zhao Mo,Wu Wei,Chen Wei,Dong Yayun,Yang Jing,Shi Yuewu,Li Jinxi,Wang Wenbing,Zhou Yifu,Wang Xutong
The magnetostriction effect of ferrite materials will adversely affect their application in high-precision electrical measurement scenarios. In this study, vanadium pentoxide (V 2 O 5 ) was introduced as both a sintering aid and a dopant in the solid-state sintering process of iron-deficient NiCuZn ferrites with the composition (Ni₀.₂Cu₀.₂Zn₀.₆O)₁.₀₃(Fe₂O₃)₀.₉₇. The results show that the addition of V₂O₅ effectively promots grain growth, increasing the average grain size from approximately 1 μm to 6 μm, and enhances the compactness of the material, which would compensate the magnetization reduction due to the replacement of Fe 3+ by V 5+ . When the doping concentration of V 5+ is controlled below 3 at%, the magnetostriction strain of the ferrite can by minimized to approximately 8 ppm without significant loss of key magnetic properties such as permeability and saturation magnetization. In addition, vanadium doping also improved electrical resistivity of NiCuZn ferrite, thereby reducing eddy current losses and power loss of material under high-frequency (50 kHz and 100 kHz) electromagnetic fields, which make the V 5 ⁺ doped NiCuZn ferrites possibly be used in the high-precision and high frequency measurement.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2025
·
IF 5.1
Kai Xu,Pei Liu,Yinxu Ni,Qingqing Gao,Jin Chen,Shuai Yin,Zixuan Ding,Guohui Tang,Changtian Zhu,Fenghua Liu
Electromagnetic (EM) pollution has emerged as a pressing concern, driving the demand for high-performance microwave absorbing materials. In this work, attapulgite (ATP) was employed as a natural, porous scaffold for the in situ integration of amorphous TiO2, Fe3O4, and polyaniline (PANI), constructing a multifunctional composite with tailored dielectric and magnetic properties. The TiO2 and PANI coatings not only induced strong interfacial and conduction polarization but also formed a continuous 3D conductive network, enabling efficient energy dissipation. Benefiting from the magneto-electric synergy among PANI, TiO2, and Fe3O4, the composite exhibited multiple loss mechanisms and excellent impedance matching. As a result, a minimum reflection loss of -56.24 dB was achieved at 11.63 GHz (2.9 mm thickness), with an ultra-wide effective absorption bandwidth of 8.1 GHz. More importantly, by integrating 3D printing with metamaterial-inspired design, the absorption range was successfully extended into the low-frequency region (4–6 GHz), while simultaneously enhancing structural integrity and corrosion resistance. This study offers a scalable strategy for designing lightweight, corrosion-resistant microwave absorbers by combining hierarchical conductive frameworks with multifunctional components, opening new avenues for next-generation EM shielding and stealth technologies.
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 46
·期 2
·739-746
·
IF 3.591
Tao Wang,Xiqing Liu,Mei Liu,Runhua Liao,Hongquan Zhan,Xiaoxue Qi,Yongqing Wang,Yanju Huang
Black TiO2 and metal–organic frameworks (MOF) are great materials with light-harvesting ability, redox power and consequently catalytic activity. Here, the integration of MIL-100(Fe) with TiO2(B) composite was designed for photocatalytic application, which greatly promoted light-harvesting and charge transfer. As expected, the integrated TiO2(B)/MIL-100(Fe) composite showed high photocatalytic activity due to unique Fe–O–Ti bonds that were constructed, which acted as an electronic tunnel to reduce electronic transfer resistance between MIL-100(Fe) and TiO2(B). In addition, the presence of Fe–O clusters in MIL-100(Fe) can also promote the charge dissociation and improve catalytic activity via the Fe3+/Fe2+ redox cycle. This achievement would help us to understand and design charge transfer pathways in the integration of MOF/semiconductor photocatalysts.
✓ 已验证
DOI
高影响因子
Journal of Water Process Engineering
·
2025
·
IF 6.7
Yongzhi Tu,Ziming Zhang,Peien Huang,Jiale Zou,Zhi Xiong,Meiting Zheng,Zhifei Ma,Jianxin Chen
Unlike conventional Fe₃O₄-MnO₂ composites, an architecture-engineered Fe₃O₄-MnO₂ (FM-21) heterostructure was constructed by anchoring Fe₃O₄ nanoparticles onto α-MnO₂ nanorods. Under visible light irradiation, the FM-21/PDS system achieves 96.5 % Orange II degradation within 60 min with a kinetic rate constant of 0.0596 min −1 , significantly outperforming its individual components and dark condition controls. Multiple characterization techniques confirm that the unique interfacial configuration establishes a direct Z-scheme charge transfer pathway, substantially enhancing charge carrier separation efficiency. XPS analysis provides direct evidence that visible light accelerates the co-cycling of Fe 3+ /Fe 2+ and Mn 4+ /Mn 3+ redox pairs, thereby maintaining highly efficient PDS activation. Quenching experiments and EPR analysis further reveal that the synergistic effect between radical and non-radical pathways, which is dominated by singlet oxygen ( 1 O₂) and holes (h + ), drives the degradation process. This mechanism enables the degradation of various pollutants with minimal dependence on their charge characteristics, demonstrating the catalyst's broad applicability. The catalyst also exhibits practical advantages including magnetic separability and stable performance over five consecutive cycles. This study demonstrates that the synthesized FM-21 exhibits significant potential for visible light-enhanced PDS activation in eliminating recalcitrant organic pollutants.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Zhongtao Shang,Tao Zhang,Qiao Yang,Dingke Wang,Yuyi Liao,Dongjia Xie,Yiyang Dai,Yuan Wang,Shaojun Yuan
Nanocomposites consisting of metal oxide and carbon materials are usually preferred as electrode for electrochemical energy storage. Nonetheless, their unsatisfied capacitance hinders the reached energy density of aqueous supercapacitors (SCs). Herein, Fe 2 O 3 /carbon heterointerface was constructed on porous carbon fiber (PCF), which could serve as an efficient active site for stabilizing K + and Na + storage. The theoretical calculations revealed the enhanced accumulation and transfer of charges around the Fe 2 O 3 /carbon interface, thus favoring the electron transfer and boosting the faradaic reaction. The interactions of Fe 2 O 3 and PCF was found to simultaneously cause faster ion transfer and more surface charge storage, which made the as-prepared Fe 2 O 3 @PCF electrode deliver a superior SCs performance in 2 M KCl or 1 M Na 2 SO 4 electrolyte. The asymmetric aqueous supercapacitor devices consisted of Fe 2 O 3 @PCF and MnO 2 /CC electrodes with maximum operating potential of 2.0 V achieved a high areal energy density of 0.126 mWh cm −2 at a power density of 1.2 mW cm −2 along with good stability.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）