JOURNAL OF HAZARDOUS MATERIALS
·
2019
·
IF 7.65
Bing Wang,Kun Tian,Xingaoyuan Xiong,Hongyang Ren
In this study, the microelectrolysis system was applied to generate strong reductants, such as free hydrogen [H] and O ∙ , and thus removing N -Methyldiethanolamine (MDEA) in overhaul wastewater. Effects of initial influent pH, mass ratio of filings to wastewater, air aeration rate, and reaction temperature on the removal of MDEA were investigated intensively. Experimental results indicate that optimum removal rate of MDEA can be obtained at pH = 2, inlet air rate = 1 L min −1 , mass ratio of filings to wastewater = 1:1 and temperature = 25 °C. About 96.0% Total Organic Carbon (TOC) in overhaul wastewater can be mineralized by ozonation–microelectrolysis–ozonation (OMIO) treatment process. By analyzing the effluent at various stages, it was established that microelectrolysis played a leading role in the destruction of MDEA. The degradation mechanism of MDEA has been clarified through detecting the degradation products with Gas Chromatography–Mass Spectrometer (GC–MS). Subsequently, ozone reacts with intermediate products generated by MDEA degration through OH· pathway under alkaline condition. In short, these results suggest that OMIO system should be proposed as a promising treatment process for the MDEA wastewater.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·
IF 19
Mengqiu Huang,Lei Wang,Ke Pei,Bangxin Li,Wenbin You,Liting Yang,Gang Zhou,Jincang Zhang,Chongyun Liang,Renchao Che
Heterogeneous interface regulation plays an important role in tailoring the intrinsic electromagnetic (EM) properties for obtaining excellent EM wave absorption, which still faces huge challenge. In this work, bi-metal MOFs-derived ZnFe 2 O 4 –ZnO-Fe@C (ZZFC) microspheres with custom-built heterogeneous interfaces are successfully fabricated via a confined growth strategy. Bi-metal Fe–Zn–ZIF with tailored coordination structure and chemical bonding are first selected as the precursor template. After undergoing the annealing process, the metal Fe 2+ host is converted into magnetic Fe nanoparticles (NPs). The Zn 2+ host is transformed into semiconductor zinc oxide (ZnO) with increasing (101) crystal-oriented growth. At the same time, metal hosts Fe 2+ and Zn 2+ are further reacted to synthesize the zinc ferrite (ZnFe 2 O 4 ). Formed Fe nanoparticles catalyze organic ligands to constitute graphitized carbon layers, which confine the further growth of ZnFe 2 O 4 , ZnO, and Fe NPs. Combined with the well impendence and synergy absorption mechanism (magnetic loss, interface polarization, and conduction loss), optimized magnetic–dielectric ZnFe 2 O 4 –ZnO-Fe@C microspheres exhibit outstanding EM wave absorption with the minimum reflection loss −66.5 dB at only 2.0 mm thickness. Bi-metal MOF-derived magnetic–dielectric absorption materials with tailored heterogeneous interfaces provide a new sight to design an efficient EM wave absorption system.
研究领域:
材料科学
·
电磁学
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Minjun Liu,Ying Liu,Xinru Liu,Chengcheng Chu,Ducheng Yao,Shun Mao
Metal organic framework (MOF)-derived materials normally have three-dimensional (3D) structure, while little attention has been paid to two-dimensional (2D) MOF-derived materials with high catalytic activity. Nevertheless, the underlying agglomeration and metal leaching issues of 2D MOF-derived catalysts hinder their real applications. In this work, we report a bimetallic nanocomposite (Ni-Fe-C-600-acid/GO) derived from 2D Ni-Fe-MOF and graphene oxide (GO) network. Employing Ni(0) and Fe 3 O 4 as active site, the Ni-Fe-C-600-acid/GO shows high efficiency in peroxydisulfate (PDS) activation for the removal of p-chloroaniline (PCA), and the catalyst/PCA dosage ratio (0.8) is substantially lower than those of the previous studies (3.9–156.9). The prepared catalysts demonstrate high catalytic activity over a wide pH range of 3–9 and maintain high efficiency after five cycles with good tolerance to inorganic anions. The singlet oxygen is identified as the predominant active species and relatively weak contributions from sulfate free radicals and hydroxyl radicals are confirmed. This catalysis system presents new insights in 2D MOF-derived catalysts in advanced oxidation processes .
研究领域:
材料科学
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环境工程
·
催化
·
纳米技术
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ACS Applied Electronic Materials
·
2026
·Vol. 8
·期 15
·6545-6553
·
IF 4.7
Liu Qianzuo,Sun Sifan,Li Jiawei,Yang Haoran,Xiang Xinyue,Hao Ying,Yan Xuehua,Zhang Ting,Li Tie
Hydrogen peroxide (H 2 O 2 ), a key reactive oxygen species in physiological and pathological processes, demands highly sensitive detection for biological and biomedical research, yet developing electrocatalytic materials with high sensitivity, low detection limit, and excellent stability remains a challenge. Herein, a Fe−C@Fe/Ce−C bilayer heterojunction composite was fabricated for H 2 O 2 detection. Benefiting from its unique heterojunction architecture and synergistic Fe/Ce/carbon interactions, the as-prepared nanocomposite exhibits the exceptional H 2 O 2 sensing performance, with a wide linear range of 0.5−6000 µM, a high sensitivity of 490.5 μA·mM −1 ·cm −2 , a low detection limit of 0.12 µM, excellent anti-interference selectivity against common biological interferents, and outstanding long-term stability with no obvious performance variation after 11 days of continuous testing. The robust built-in electric field arising from the heterojunction facilitates interfacial charge transfer and accelerates H 2 O 2 activation, boosting sensing behavior. Furthermore, the flexible electrochemical sensor was fabricated via the screen-printing technology, which enables reliable real-time monitoring of intracellular H 2 O 2 released from HeLa cells, showing great potential for biological sensing. This work provides a promising design strategy for high-performance flexible electrochemical sensors and deepens the understanding of heterojunction and built-in electric field roles in electrocatalytic sensing systems.
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JOURNAL OF THE INDIAN CHEMICAL SOCIETY
·
2026
·Vol. 103
·期 5
·102557
·
IF 3.4
Lei Liu,Fang Liu,Xinqian Ma,Jingyue Qian,Qiangshun Wu,Lina Wang,Liqiang Cui
Iron-based metal organic frameworks (Fe-MOFs) have been regarded as the ideal precursors for synthesis of iron-carbon micro-electrolysis (IC-ME) materials. However, their conventional autoclave-based fabrication limits large-scale application, and the potential of the resulting Fe@C composites derived from Fe-MOFs for Cr(VI) reduction remains underexplored. Herein, a facile stirring method conducted under ambient conditions was successfully developed. The evolution from Fe-MOFs to Fe@C was comprehensively characterized, and its reductive capacity for Cr(VI) was systematically evaluated. The effect of key experimental parameters including reaction time, initial pH value, electrolyte concentration, catalyst dosage, and environmental matrices on Cr(Ⅵ) removal were investigated in detail on the basis of the concentration variation of Fe ions released into water. The obtained results indicated that the rate of Cr(VI) removal-efficiency change (Δη/Δt) was positively corelated with that of Fe(II) concentration change (Δ C Fe(II) /Δ t) and 98.2% of Cr(VI) was removed within 60 min under the optimized conditions. According to the results of XPS with ion sputtering, Cr(VI) was removed via multiple pathways including adsorption, reduction and co-precipitation. This work not only offers a scalable route for MOFs-derived IC-ME materials, but also provides mechanistic insights into Cr(VI) removal from the perspective of Fe(II) dynamics.
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RSC Advances
·
2021
·Vol. 11
·期 58
·36826-36835
·
IF 3.361
Yunlong Shi,Changjiang Yu,Mengying Liu,Qiang Lin,Man Lei,Darun Wang,Mengwei Yang,Yuting Yang,Jian Ma,Zhengya Jia
In this study, a spherical Fe/C composite (AIBC) was successfully prepared via carbonization of Fe3+-crosslinked sodium alginate. The removal capacity and mechanism of AIBC were evaluated for the adsorption of Pb(II) from aqueous solution and compared with that of commercial nanoscale zero-valent iron (nZVI). The effects of the initial concentration, pH of Pb(II) solution, the contact time, coexisting anions, and aging under air were investigated. The results showed that the pH had a strong impact on the adsorption of Pb(II) by AIBC. The adsorption data for AIBC followed the Langmuir model, while the maximum adsorption capacity at pH 5 was 1881.73 mg g−1. The AIBC had a higher adsorption capability than nZVI, especially under the condition of relatively high Pb(II) concentrations. The oxidation–reduction reaction between Fe and Pb(II) was the main mechanism for the adsorption of Pb(II) onto nZVI. AIBC converted the largest amount of Pb(II) into PbO·XH2O/Pb(OH)2 mainly by generating Fe2+.
研究领域:
环境科学
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材料科学
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化学工程
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Materials Today Bio
·
2024
·
IF 8.7
Zeyu Shou,Zhibiao Bai,Kaiyuan Huo,Shengwu Zheng,Yizhe Shen,Han Zhou,Xiaojing Huang,Hongming Meng,Chenwei Xu,Shaohao Wu,Na Li,Chun Chen
The limited osteointegration often leads to the failure of implant, which can be improved by fixing bioactive molecules onto the surface, such as arginyl-glycyl-aspartic acid (RGD): a cell adhesion motif. Metal-Phenolic Networks (MPNs) have garnered increasing attention from different disciplines in recent years due to their simple and rapid process for depositing on various substrates or particles with different shapes. However, the lack of cellular binding sites on MPNs greatly blocks its application in tissue engineering. In this study, we present a facile and efficient approach for producing PC/Fe@c(RGDfc) composite coatings through the conjugation of c(RGDfc) peptides onto the surface of PC/Fe-MPNs utilizing thiol-click reaction. By combined various techniques (ellipsometry, X-ray photoelectron spectroscopy, Liquid Chromatography-Mass Spectrometry, water contact angle, scanning electronic microscopy, atomic force microscopy) the physicochemical properties (composition, coating mechanism and process, modulus and hydrophilicity) of PC/Fe@c(RGDfc) surface were characterized in detail. In addition, the PC/Fe@c(RGDfc) coating exhibits the remarkable ability to positively modulate cellular attachment, proliferation, migration and promoted bone-implant integration in vivo, maintaining the inherent features of MPNs: anti-inflammatory, anti-oxidative properties, as well as multiple substrate deposition. This work contributes to engineering MPNs-based coatings with bioactive molecules by a facile and efficient thiol-click reaction, as an innovative perspective for future development of surface modification of implant materials.
研究领域:
生物材料
·
组织工程
·
表面改性
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植入科学
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生物医学工程
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高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2019
·Vol. 30
·期 9
·2458-2467
·
IF 2.162
Zhongwei Chen,Tingting Chen,Yuan Yu,Qingwu Zhang,Zhiquan Chen,Juncheng Jiang
Metal-organic framework MIL-53 (Fe)@C/graphite carbon nitride hybrid (MFeCN), a novel flame retardant, was synthesized by hydrothermal reaction and subsequently added into unsaturated polyester resin (UPR). The structure, morphology, and thermal stability of MFeCN were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), and thermogravimetric analysis (TG). The thermal stability and flammability of the UPR composites were characterized by TG and cone calorimeter tests (CCT). The results of CCT demonstrated that the peak heat release rate (pHRR), total heat release (THR), peak smoke production rate (pSPR), and total smoke production (TSP) of UPR/MFeCN-4 were reduced by 39.8%, 10.2%, 33.3%, and 14.5%, respectively, comparing with UPR. The results of TG and CCT indicated that MFeCN could improve the thermal stability, flame retardancy, and smoke suppression properties of the UPR composites. The residues after CCT were then characterized by laser Raman spectroscopy (LRS), XPS, and SEM. Finally, based on the above experimental results and analysis, the flame retardancy mechanism of MFeCN was proposed.
研究领域:
材料科学
·
化学工程
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Li Zhu,Jing Ma,Yuyu Wang,Song Qiao,Yifan Wu,Min Xu,Wenxin Ji,Yonggang Sun,Yulong Ma
The full-component decomposition and reorganization of inert coal gasification fine slag (CGFS) could be achieved through exogenous enhancement, and this approach was also an inevitable choice for enterprises to realize clean production. In this work, a strategy for activating the CGFS structure via non-metallic heteroatomic nitrogen doping was proposed. CGFS was subjected to mechanical ball milling to obtain ball-milled CGFS (MCGFS), and the carbon-ash synergistic catalyst N d -MCGFS was further synthesized through dicyandiamide doping and hydrothermal treatment. The flotation-derived residual carbon (RC) and ball-milled inorganic minerals (MIM) were also prepared the composites N d -RC and N d -MIM under the same conditions. Under suitable conditions, the N d -MCGFS/PMS system achieved a BPA removal rate of 97.00 % within 60 min. The prepared N d -MCGFS had a nitrogen content of 0.73 %, an Fe N structure proportion of 18.80 %, and a specific surface area of 132.07 m 2 /g, while catalysts using RC or MIM alone as substrates showed inferior performance The mineral-based N d -MIM only achieved 45.81 %, while the residual carbon-based N d -RC mainly relied on adsorption. The residual carbon pores and mineral metal sites could promote carbon-ash synergy and enhance catalytic performance. In the N d -MCGFS/PMS system, PMS was activated by C O bonds and nitrogen species to generate reactive oxygen species (ROS). BPA degradation was realized through the cycle of high-valent iron‑oxygen species and electron transfer. The Fe leaching amount was approximately 43 times lower than that of the CGFS. This provides a new approach for the high-value utilization of CGFS.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Hongyu Zhang,Fengying Zhang,Antong Shi,Jiahan Yang,Zhehan Tu,Weixin Lin,Xue Bai,Gongduan Fan,Zhuwu Jiang
The design and catalytic potential of materials with simultaneously oxidation and reduction performance remains underexplored, particularly in three-dimensional electrochemical systems. This study developed a carbon nanosheet framework with iron insertion and nitrogen doping, as the skeleton for the deposition of. nickel‑manganese metal mixture. Advanced characterization confirmed that the addition of Fe/C-N skeleton can improve morphology and specific surface, which in turn enhances electronic conductivity and degradation efficiency. Electron paramagnetic resonance (EPR) and density functional theory (DFT) calculations certify that the Fe/C-N skeleton can enhance the electron supply capacity and thereby accelerate the generation and stabilization of •H and •OH species during the reaction. Under optimal conditions, the system achieved a maximum Chloracetamide (MCAcAm) degradation rate of 68.86 % and good stability. Moreover, in practical tests using industrial wastewater pre-treated with chlorination, the composite showed exceptional efficiency, achieving 86.14 % chemical oxygen demand (COD) and 74.01 % total organic carbon (TOC) removal within 1 h. These results highlight the potential of NiMn-LDH/MnO 2 -Fe/C-N (Name it NML-Fe/C-N) for practical wastewater treatment and provide valuable insights into the design of advanced electrode materials and the mechanisms of electrocatalytic degradation.
研究领域:
环境科学
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电化学
·
材料科学
·
水处理技术
·
催化
·
废水处理
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PubMed
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Huixiao Duo,Yan Hao,Jiayuan Yue,Qianxing Lu,Yuetan Dong,Ke Chen,Yanyan Kong,Shushu Ding,Qing Zhu,Jiejia Li
The extensive use of non-steroidal anti-inflammatory drugs (NSAIDs), particularly diclofenac (DIC) and indomethacin (IND), poses escalating ecological and health risks due to incomplete degradation in water systems. Conventional remediation methods face challenges including low efficiency and toxic intermediate generation. Herein, we developed a novel MXene/Zr-Fe-MOF-derived carbon heterostructure (MXene/Zr-Fe@C) featuring bimetallic Zr/Fe active sites anchored on MXene nanosheets. The heterostructure design of MXene/Zr-Fe@C enables exceptional synergistic adsorption of NSAIDs from aqueous environments. Systematic adsorption experiments in single-component (DIC or IND) and binary (DIC+IND) systems revealed competitive adsorption behaviors and synergistic effects. MXene/Zr-Fe@C demonstrated satisfactory adsorption capacities (277.7 mg/g for DIC and 238.09 mg/g for IND, surpassing conventional adsorbents. These exceptional performances stem from the bimetallic site selectivity and synergistic domain interactions of MXene/Zr-Fe@C. The Zr/Fe@C provide selective coordination site, while MXene and carbon matrix promote the non-polar interaction with aromatic rings of NSAIDs. Remarkably, the composite exhibited excellent regenerability, retaining 83% of adsorption capacity after 54 regeneration cycles. Overall, the synergistic interfacial effects between MXene's conductive surfaces and ordered porosity of MOF-derived carbon enhance structural stability, efficient mass transfer and site accessibility. These findings establish MXene/Zr-Fe@C heterostructures as versatile platforms for NSAIDs remediation, providing foundational insights for sustainable water purification technologies addressing emerging pharmaceutical contamination challenges.
研究领域:
环境科学
·
材料化学
·
水净化
·
吸附技术
·
纳米材料
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高影响因子
CATALYSIS TODAY
·
2024
·
IF 5.2
Gongheng Zhang,Fengxiang Yin,Gideon Kofie,Qiuyue Gao,Jie Zhang,Guoru Li,Biaohua Chen
ZIF-67(CoFe) was synthesized using the solvothermal method , and the precursor of ZIF-67(CoFe)/xC-yIL was obtained by grinding the mixture of ZIF-67(CoFe), [BMIM][NTf 2 ] ionic liquid (IL), and carbon black. A series of ZIF-67(CoFe)/xC-yIL-T catalysts were prepared by calcining the precursor at different temperatures. The structure of the catalysts was examined using XRD , TEM, BET and XPS analysis. The results show that the high-temperature treatment of the precursor contributes to the formation of the structure of the N, S-co-doped carbon-coated nanoparticles . The introduction of ionic liquid increases the specific surface area of the catalysts and exposes more active sites. At the same time, as a sulfur source, ionic liquid forms a C-S bond, which is conducive to improving ORR activity. The optimal ORR half-wave potential and limited current density of ZIF-67(CoFe)/1.5 C-45IL-600 are 0.87 V vs. RHE and 4.64 mA cm -2 , respectively, in 0.1 mol L −1 KOH.
研究领域:
材料科学
·
电化学
·
纳米技术
·
催化化学
·
能量转换
·
无机化学
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高影响因子
危险品化学品经营许可证（带存储）