Applied Materials Today
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2026
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IF 7
Xiaojie Liu,Boyu Ye,Yun Deng,Yanhua Yu,Fan Yu,Wangting Lu,Lu Zhou,Min Liu,Wenhui Song
Rapid gelation (∼5 s) via dual-crosslinking of click chemistry and Fe³ ⁺ coordination. • Synergistic antibacterial effect of mild photothermal therapy and Fe³ ⁺-mediated Fenton reaction. • Excellent self-healing ability and strong adhesion to various substrates and tissues. • Excellent biocompatibility and Accelerated wound healing by promoting angiogenesis and collagen deposition in vivo. Multifunctional hydrogels are effective for treating injured and infected skin. These materials mimic native tissue and promote regeneration through their high-water content and biocompatibility. In this study, we developed an interpenetrating network hydrogel composed of hyaluronic acid and collagen (HA/Col) with strong tissue adhesion and synergistic antibacterial properties. The hydrogel rapidly forms within approximately 5 s through a dual-crosslinking strategy that combines bio-orthogonal click chemistry with Fe³ ⁺ coordination bonding. The resulting hydrogel demonstrates excellent self-healing ability, strong adhesion, suitable swelling and degradation profiles, and a pronounced photothermal effect. In vivo biocompatibility evaluations show no pathological changes in major organs on days 7 and 14 post-treatment. Furthermore, the hydrogel shows robust antibacterial activity and reduces local inflammation. It ultimately accelerates wound healing by promoting collagen deposition and neovascularization. Taken together, this multifunctional hydrogel holds great promise as a next-generation wound dressing for regenerative skin treatments. Download: Download high-res image (133KB) Download: Download full-size image We developed an interpenetrating network hydrogel composed of hyaluronic acid and collagen (HA/Col) with strong tissue adhesion and synergistic antibacterial properties for rapid wound repair.
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JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2026
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IF 6.7
Rongjing Zhang,Yi Zhang,Ziyue Tang,Yingquan Chen,Haiping Yang,Hanping Chen
Protein-rich biomass is a promising feedstock for producing N-containing chemicals via catalytic pyrolysis, yet poor product selectivity remains a critical bottleneck. Therefore, it is of great significance to improve the catalyst activity and catalytic efficiency for the for the highly selective synthesis of N-containing chemicals. This study pioneered bottleneck the modification of HZSM-5 zeolite with Fe and Co for the catalytic pyrolysis of soybean protein to produce indoles. The results indicated that Fe and Co loading reduced the number of Brønsted acid sites on HZSM-5 while generating novel Lewis acid sites, such acid rearrangement improved the yield of liquid oil and facilitated indoles formation. Among monometallic Fe or Co modified HZSM-5, 1 wt% Fe/HZSM-5 obtained the maximum content and selectivity of total indoles (35.5% and 55.6%, respectively). Furthermore, Fe-Co bimetallic modification with Low Fe/Co ratio exists a synergistic effect on indole, but excess Fe is unfavorable for indoles production. Fe 1 Co 3 /HZSM-5 further increased total indoles content and selectivity (37.6% and 61.6%, respectively). The Lewis acid sites were conducive to the formation of indole, Fe 1 Co 3 /HZSM-5 had the highest content of Lewis acid sites. This work provides a novel technical pathway for indole production via catalytic pyrolysis of biomass with endogenous nitrogen.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Xiangyu Zi,Xiaolong Sun,Fengwei Yin,Jia Gao,Jie Huang,Yingying Zhang,Yao Chen,Yongqian Fu
MOFs represent a promising platform for enzyme immobilization, yet the development of tailored strategies to accommodate both enzyme properties and MOF structures remains a challenge. In this study, we employed chitosanase BCC1 as a model enzyme and integrated Fe 2+ /Mn 2+ ions into the ZIF-8 to construct a bimetallic MOF-based immobilization system (BCC1@Fe/Mn-ZIF-8). Comprehensive characterization by SEM, FTIR, TGA confirmed the successful immobilization and structural integrity of the composite. The immobilized enzyme retained 97 % of its initial activity and exhibited enhanced stability under harsh thermal, pH, and solvent conditions. Notably, BCC1@Fe/Mn-ZIF-8 maintained 117 % activity after 14 days at 4 °C and 72 % residual activity after 14 reuse cycles, indicating excellent storage and reusability. This bimetallic MOF-based strategy offers a robust and efficient approach for enzyme immobilization, with strong potential in industrial biocatalysis.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Ya Gao,Zhenqiang Jiang,Xuewen Xia,Xueqiang Zhang,Xingli Zou,Xionggang Lu,Wenhe Wu
Developing robust electrocatalysts capable of operating at ampere-grade current densities is imperative for practical water electrolysis. Herein, we report a bifunctional electrocatalyst with minimal Ru metal (0.78 wt%) anchored on the phosphidated Fe-based metal-organic framework (Ru@P-FeMOF). Experimental and theoretical analyses reveal that Ru nanoclusters, with a narrow size distribution of 1.6–2.8 nm, are uniformly deposited on the interwoven P-FeMOF nanosheets, which are vertically arranged on the substrate. Such a structure provides abundant active sites and facilitates interfacial charge transport due to the optimized d-band center and the lowest energy barrier of the rate-determining step, significantly boosting hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). It is proved that Ru nanoclusters are more conducive to HER, while the presence of Fe 2 P coupling with FeMOF contributes more to reducing O 2 desorption free energy. The fabricated catalyst exhibits superior electrochemical activity and high stability in alkaline water electrolysis. Only 20 and 184 mV of overpotentials are required for HER at 10 and 1000 mA cm −2 , respectively, while 171 mV @ 50 mA cm −2 and 258 mV @ 1000 mA cm −2 for OER in 1 M KOH. Moreover, Ru@P-FeMOF exhibits outstanding durability with negligible degradation after running 10,000 cycles or over 200 h. The cell voltage with Ru@P-FeMOF as both anode and cathode in overall water splitting is as low as 1.43/1.74 V at 10/1000 mA cm −2 , showing excellent performance at industrial-level current densities.
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JOURNAL OF CATALYSIS
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2018
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IF 6.759
Hong Zhang,Shuang Ni,Yongli Mi,Xiaoxiang Xu
Doping techniques generally serve as effective means for tailoring the physicochemical properties of a target compound. In this work, we successfully co-doped La/Fe into Ruddlesden-Popper (RP) compound Sr 2 TiO 4 and performed a detailed investigation on the crystal structure, morphology, optical absorption and photocatalytic hydrogen production reactions after doping. Our findings suggest that La/Fe co-doping slightly expand the unit cell of Sr 2 TiO 4 while maintains the structure lamination. Incorporating La/Fe into Sr 2 TiO 4 efficiently reduces the band gap and the level of band gap reduction can be controlled by varying the amounts of dopants. La/Fe co-doping significantly improves the photocatalytic properties of Sr 2 TiO 4 under both full range (λ ≥ 250 nm) and visible light illumination (λ ≥ 420 nm). A fivefold enhancement in hydrogen production rate (∼106.2 μmol/h) is seen in sample Sr 1.9 La 0.1 Ti 0.9 Fe 0.1 O 4 (x = 0.1). Efficient photocatalytic hydrogen production under visible light illumination (λ ≥ 420 nm) is also achieved in sample Sr 1.7 La 0.3 Ti 0.7 Fe 0.3 O 4 (x = 0.3) with AQE as high as ∼1.18% at 420 nm. DFT calculations confirm the critical role of Fe in reducing the band gap of Sr 2 TiO 4 by forming additional spin-polarized bands (SPB). The anisotropic charge transportation in Sr 2 TiO 4 is also verified by our calculations as both conduction band minimum (CBM) and valence band maximum (VBM) are buried in TiO 6 octahedron layers. The 2D charge transportation properties are particularly useful for photocatalytic reactions since interlayer charge recombination is essentially prevented.
研究领域:
材料科学
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光催化
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能源材料
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固态化学
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高影响因子
Journal of Environmental Sciences
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2026
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IF 6.5
Huiwang Dai,Yingsen Fang,Xinran Guo,Shumei Gao,Yuejin Zhang,Zeyu Li,Zhiqing Liu,Wenjun Zhou
Engineering the electronic structure of active centers located at the octahedral sites in spinel oxides has been widely recognized as an effective strategy for enhancing their performance in Fenton-like catalysis. However, the role of tetrahedral site during the catalytic process between octahedral active site and oxidant molecule remains to be unrevealed. In this study, a series of Fe-based spinel oxides with the substitution of different tetrahedral sites (AFe 2 O 4 , A = Zn, Ni, Co, Mn, Cu) were synthesized by the sol-gel method, and the critical role of tetrahedral site in the peroxymonosulfate (PMS) activation process was systematically investigated. The Fe-based spinel oxide with Co occupying the tetrahedral site (CoFe 2 O 4 ) exhibited high activity and stability in Fenton-like catalysis. Remarkably, the degradation efficiency of bisphenol A (BPA) reached 100 % within 40 min, with a corresponding kinetic rate constant of 0.107 min -1 . The density functional theory calculations reveal that the substitution at the tetrahedral site could regulate the occupation of electron filling in d orbital, and thereby lead to a modulation of the electronic structure accompanied with the shift of d-band center. Co atom at the tetrahedral site modulates the d-band center of Fe closer to the Fermi level, which optimizes the interaction between PMS molecule and Fe active center, thereby facilitating BPA degradation via a fast electron transfer process.
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RENEWABLE ENERGY
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2023
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IF 8.7
Yixuan Yu,Huai Liu,Junhua Zhang,Heng Zhang,Yong Sun,Lincai Peng
Designing highly efficient non-noble metal catalyst for the selective hydrogenolysis of biomass derivatives to fuels and fine chemicals is a key pursuit for sustainable chemical industry but substantially challenging. In this contribution, we report, for the first time, the construction of amorphous bimetal Ni–Fe borides for efficient catalytic hydrogenolysis of biomass-derived 5-hydroxymethylfurfural (HMF) into 2,5-dimethylfuran (DMF) as a promising biofuel candidate. The as-prepared Ni 1.52 Fe 0.36 BO x catalyst afforded a near-quantitative DMF yield using ethanol as a green solvent under relatively mild operating conditions (1 MPa H 2 , 160 °C and 1 h), leading to an excellent DMF formation rate of 16.5 mmol DMF ·g cat −1 ·h −1 , which is 1.7–16.5 folds higher than the state-of-art nickel-based catalysts. Mechanistic investigations demonstrated that the Fe intervention is conductive to the generation of electron-enriched metal sites and powerful acidic sites in Ni 1.52 Fe 0.36 BO x catalyst, which favored the activation of hydrogen and the cleavage of C–O bond to accelerate the hydrogenolysis process. Moreover, Ni 1.52 Fe 0.36 BO x catalyst exhibited good recyclability as well as universality in the hydrogenolysis of various biomass-derived unsaturated aldehydes. This finding opens a new avenue for highly selective hydrodeoxygenation of renewable biomass feedstock to value-added chemicals with non-noble bimetal hybrids in a green and straightforward manner.
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2023
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IF 13.6
Wenhua Tong,Xinhang Du,Jiepeng Wang,Hao Yan,Tonghui Xie,Yabo Wang,Yongkui Zhang
Organophosphate esters (OPEs) waste is difficult to dispose effectively because of its stability and the potential risk of P element. In this study, taking one typical organic extractant of tributyl phosphate (TBP) as an example, we proposed a strategy to treat OPEs inspired by chemical looping combustion (CLC) technology—oxygen carrier immobilization process (OCIP), aiming at efficient TBP degradation and simultaneous P immobilization. Adopting Fe-Mn bimetallic oxide (FMBO) as oxygen carrier, an almost 100% P immobilization efficiency was achieved under recommended conditions which were obtained by response surface methodology . Meanwhile, gaseous products released from TBP degradation, e.g., non-methane hydrocarbon, was lower than the maximum allowable emission concentration limit. Further characterizations implied that P-species released from reaction process were mainly immobilized as stable inorganic forms of metaphosphate, phosphate and pyrophosphate. On the basis of identifying degradation intermediates, we proposed a possible degradation pathways. FMBO as an oxygen carrier provided sufficient oxygen molecules for flameless combustion of OCIP process. Electron paramagnetic resonance measurement confirmed the existence of oxygen vacancies on FMBO surface, which contributed to the formation of •O 2 − . Oxidation by oxygen molecules and •O 2 − attack resulted in the degradation and mineralization of TBP, with simultaneously achieving P stabilization.
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PubMed
高影响因子
SOLID STATE SCIENCES
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2023
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IF 3.5
Guo-li Chen,Huai-yao Wang,Yong-zhi Liu,Xiao-ming Huang,Guang-ming Yin
In this paper, nanowool ball Ni 3 Se 2 , rod NiSe and multistage Ni 3 Se 2 were prepared. Multilevel Ni 3 Se 2 was doped with Fe, Co and Mo respectively to prepare composite catalysts. The prepared materials were characterized by UV, XRD, SEM-EDS and XPS . The results show that the composite catalysts with multi-level Ni 3 Se 2 and Mo have special morphology and high purity. The HER performance of the composites was tested using an electrochemical workstation, and the results show that at a current density of 10 mA cm −2 , the overpotentials of Ni 3 Se 2 , Ni 3 Se 2 /Fe, Ni 3 Se 2 /Co and Ni 3 Se 2 /Mo are 71, 71, 3 and 37 mV, respectively; At a current density of 100 mA cm −2 , their overpotentials are 396.9, 373.6, 321.8 and 290.1 mV, respectively. Their Tafel slopes are 227, 169, 145 and 137 mV dec −1 , respectively. The R ct s of Ni 3 Se 2 , Ni 3 Se 2 /Fe, Ni 3 Se 2 /Co and Ni 3 Se 2 /Mo are 1.63, 1.47, 1.15 and 0.90Ω, respectively. After the comparison of the electrochemical HER performance, it is found that the Ni 3 Se 2 /Mo composite catalyst has good HER performance.
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高影响因子
Journal of Environmental Chemical Engineering
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2023
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IF 7.7
Weiting Yu,Leben Qiu,Jieyun Zhu,Sizhuo Chen,Shuang Song
The selective catalytic reduction of nitroaromatics towards aromatic amines under mild reaction condition is an important approach to reduce the toxicity of waste effluents from industry and afterwards utilize the product as important fine organic chemical raw materials. P-nitrophenol (PNP) is chosen as the probe molecule of nitroaromatics in this study. A Fe-embedded N-doped Carbon (Fe-N-C) catalyst prepared using ZIF-8 has been identified as a highly active, selective and stable catalyst in the selective catalytic reduction of PNP. The Fe-N-C catalyst is for the first time applied in PNP reduction and found to present 100% conversion and 100% product selectivity . A mechanism investigation has been carried out to conclude that in the PNP reduction on Fe-N-C, water acts as the main hydrogen provider and sodium borohydride is the electron donator. Furthermore, the Fe-N-C catalyst works well when it is applied in PNP degradation in real water samples, which further indicates its applicability in industrial wastewater treatment . This work offers a simple and useful strategy to design robust catalysts for the selective catalytic reduction of nitroaromatics.
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高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
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2023
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IF 3.9
Yingzi Lin,Qingyu zhang,Yi Lou,Gen Liu,Siwen Li,Lei Chen,Baoling Yuan,Deqiang Zou,Junjie Chen
In this study, the degradation of nizatidine (NZTD) was investigated using a zero-valent iron-promoted divalent iron-activated persulfate process. Results show that complete NZTD degradation at 5 mg/L could be achieved under the optimal conditions of NZTD/zero-valent iron (ZVI)/Fe(II)/persulfate (PS) = 1:6:3:6 (molar ratio), pH = 7.0, and 25 °C. A highly alkaline environment would decrease the NZTD removal, and the NZTD degradation increased with the reaction temperature (5–35 °C). Furthermore, acidic conditions and the presence of Cl - enhanced the degradation of NZTD, but the presence of high doses of HCO 3 - , NO 3 - , and humic acid inhibited the degradation of NZTD. The fragile sites in NZTD were predicted by density functional theory (DFT) methods, and six transformation products were detected during the degradation of NZTD by PS/Fe(II)/ZVI. The toxicity of the intermediates was examined using the TEST toxicity prediction model and luminescent bacteria. The degradation process generated intermediates with higher toxicity than NZTD. However, after 60 min of reaction, the inhibition rate of luminescent bacteria decreased rapidly, and low toxicity products were generated. These results suggest that ZVI/Fe(II)/PS is promising as a new alternative process for the treatment of water containing NZTD.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2023
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IF 4.5
Jilin Yan,Xi Wen,Lixiu Yin,Yueju Wang,Huiling Li,Yifeng Tu
The aggregation of amyloid-β protein (Aβ) into amyloid-β oligomer (AβO) and finally the deposition of amyloid-β fiber (AβF) in brain was found strongly related to Alzheimer's disease (AD). In this work, an electrochemiluminescent (ECL) aptasensor reinforced with a gold nanoparticle – iron metal orgaic framwork nano-composite (AuNPs/Fe-MOFs) was constructed for the detection of Aβ. It has the ability to specifically quantify Aβ, the precursor that had not yet been aggregated into AβO. The employed AuNPs/Fe-MOFs nano-composite in this sensor not only provided the opportunity to anchor the aptamer, but also enhanced the response to promote its sensitivity. The relative inhibition ratio of luminol ECL on this sensor was linearly related to the logarithm of Aβ concentration in the range from 0.5 to 50 pM, with a LOD at 104 fM. The aptasensor has high specificity to Aβ over its analogs and recoveries in human serum were obtained within 96.0–103.7%. The research prospectively provides a new demonstration for early diagnosis of the disease in clinic.
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高影响因子
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