Journal of Materials Chemistry A
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2025
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IF 9.5
Wen Li,Feng Yue,Mengke Shi,Lingji Zhang,Shuo Zhang,Yankai Xie,Fuyong Liu,Weifeng Zhou,Hongxia Chao,Shi Tang,Nan Liu,Hongzhong Zhang
Thermally assisted photocatalytic CO2 conversion into high value-added chemicals represents an effective strategy for carbon emission reduction and circular carbon economy. This study constructed an integrated gas–solid interface thermally assisted photocatalytic system using NH2-MXene/TiO2/NH2-MIL-125 (Ti-NMT), achieving in situ CO2 capture from industrial flue gases and its efficient conversion to carbon monoxide (CO) with a production efficiency of 332.43 μmol g−1 h−1, along with 100% selectivity, and 94% activity retention over 5 cycles. The exceptional catalytic performance is attributed to MXene's metallic conductivity for rapid interfacial electron transfer, amine-induced Lewis acid–base interactions that enhance CO2 adsorption via dual-binding sites, and charge separation driven by synergistic S-scheme heterojunction and Schottky barrier effects. In addition, MXene's localized surface plasmon resonance (LSPR) effect boosts hot carrier density and reduces the activation energy of the catalytic reaction. This work resolved critical bottlenecks through heterointerface engineering and functional group optimization, providing both a viable pathway and experimental validation for industrial flue gas CO2 capture and resource recovery.
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Nanoscale
·
2026
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IF 5.2
Mengyao Zhao,Hui Zhao,Siyuan Liu,Yijing Wang,Yingxing Yang,Jinhua Lai,Xiaomei Yu,Songjie Li,Jin You Zheng
To address the practical application challenges of slow response speed and inadequate stability in WO3 electrochromic films, this study fabricated such films using the sol-gel method and systematically investigated the effects of key process parameters, including the aging time of peroxotungstic acid (PTA) sol, spin-coating speed, and annealing temperature, on the films' microstructure, crystal structure, and electrochromic performance. The findings demonstrated that 15 h was the optimal aging time for the PTA sol, effectively optimizing the film formation quality. The ideal spin-coating speed was 2000 rpm, enabling precise regulation of the film thickness and performance. Notably, the amorphous WO3 films annealed at 100°C exhibited outstanding comprehensive electrochromic properties, attributed to their unique three-dimensional disordered polygonal ionic channel structure. Specifically, these films achieved an optical modulation amplitude of 64.4%, a bleaching response time of 1.2 s, a coloring response time of 3.1 s, a coloration efficiency of 42.5 cm2 C-1 , and favorable cyclic stability. In contrast, crystalline WO3 films formed via high-temperature annealing suffer from ion-trapping effects, leading to incomplete bleaching. This work offers effective strategies and a theoretical foundation for the design and preparation of high-performance WO3-based electrochromic films from the dual perspectives of process regulation and structural mechanisms.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123788
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IF 7.5
Mingtao Hu,Huiwen Wu,Wenyi Deng,Lingyu Tai,Xuerong Zheng,Weihao Li,Yaxin Su,Run Xu
Catalytic tar reforming is a pivotal technology for upgrading syngas quality during sewage sludge gasification. In this study, a series of Ni-modified carbon-based catalysts (x%NiFe/C) were synthesized using MIL-100(Fe) as a precursor to investigate the impact of Ni-loading on the catalytic performance for tar reforming. Detailed characterizations, including XRD, XPS, Raman, and NH 3 -TPD, revealed that the introduction of Ni species significantly tailored the physicochemical properties of the catalysts. Specifically, the 3.3%NiFe/C catalyst exhibited the optimal specific surface area and pore structure, facilitating efficient mass transfer. Characterization results confirmed the formation of Ni-Fe alloy, which not only modulated the surface electronic density to optimize acidity but also enhanced the dispersion of active sites. The interaction between Ni and Fe species effectively promoted the cleavage of C-C and C-H bonds in tar molecules while suppressing carbon deposition. Consequently, the 3.3%NiFe/C catalyst demonstrated superior catalytic activity and stability in the two-stage microwave-assisted gasification reforming process, achieving a syngas yield of 555 mg/g·SS, a tar conversion rate of 82.9%, and an H 2 concentration of 73.8 vol%. After ten cycles, the H 2 yield and concentration remained as high as 28.0 mmol/g·SS and 68.2 vol%, respectively. This work provides mechanistic insights into the design of MOF-derived carbon-supported catalysts for efficient SS gasification.
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CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Xingyu Zhan,Yunxiong Zeng,Jingcai Xu,Yingchun Xia,Xinqing Wang,Fang Tao,Jie Ouyang,Hongliang Li,Liming Yang,Shenglian Luo,Bo Hong
The reactive oxygen species (ROS) contribute to photodegrading tetracycline (TC), which determines the overall efficiency of photocatalysts. Superoxide radical (·O 2 – ) is one of the excellent ROS for photodegrading TC by carbon nitride. However, achieving hierarchical carbon nitride with efficient, stabile, and selective production of ·O 2 – via O 2 photoreduction is a great challenge. Herein, a carbon nitride oxide nest (CNON 6 ) with carbon/nitrogen vacancies (C-v, N-v) and oxygen substitution (O-s) was prepared via tailoring surface microenvironment. The CNON 6 can photodegrade 82% of TC within 2 min under visible light, and the pseudo-first-order kinetic constant is 1.22 min −1 , 24-fold higher than that of CN. The superior photoactivity is attributed to a unique surface microenvironment, which N-v increased photoelectric conversion efficiency, C-v enhanced O 2 adsorption and O-s induced ·O 2 – evolution with ∼ 100% selectivity. Moreover, PVDF membrane-supported CNON 6 (11.33 cm 2 , 0.88 mg/cm 2 ) can completely remove TC from wastewater at a rate of 2.62 mg/h in a simulated industrial continuous flow cell. The cost-effectiveness assessment was $6.36/kg/h, implying the CNON 6 /PVDF has a bright application prospect in wastewater treatment. This work developed a surface microenvironment tailor strategy to design photocatalysts for efficient degradation of TC.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2023
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IF 4.4
Min Chen,Yiqun Huang,Junjian Miao,Yuxia Fan,Keqiang Lai
Concerns about food safety have been arisen due to the improper use of chemicals in aquaculture. Malachite green (MG) has attracted attention because of its illegal usage and its potential negative impacts on the environment and public health. Surface-enhanced Raman scattering (SERS) platforms coupled with different SERS substrates have been employed for rapid analysis of MG residues in food. However, the most commonly used SERS substrates were non-reusable and showed limited detection sensitivity. In this study, a novel SERS substrate with a good recyclability and a high sensitivity was prepared by electrostatically assembling together a metal–organic framework material called materials of institute lavoisie-100(Fe) (MIL-100(Fe)) and Au NPs. The lowest detectable concentration of MG was 10 −13 M based on the optimal substrate. The SERS sensor was applied for the detection of the trace MG in fish pond water, which was accomplished with the correlation coefficients R 2 = 0.991–0.996 in a concentration range of 10 −6 –10 −13 M. Moreover, MIL-100(Fe)/Au was recycled at least five times, realizing a “detection to degradation”, showing great potential for food contamination monitoring due to its distinguished performance.
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Laser & Photonics Reviews
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2023
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IF 11
Chunli Zhao,Yuan Gao,Jing Wang,Jianbei Qiu
Lead-free rare-earth-based perovskites have received widespread attention for their unique optical properties, although achieving efficient broadband near-infrared (NIR) emission with these materials remains a challenge. Here the synthesis of a rare earth-based double perovskite (Cs 2 NaScCl 6 ) by an improved solid phase method is reported. The doping of Cr 3+ led to the formation of [CrCl 6 ] 3− octahedron, which exhibited a broadband NIR emission peaked at 950 nm and a half-peak width of 162 nm. It is worth noting that with the same actual Cr 3+ content, the luminous intensity of Cs 2 NaScCl 6 synthesized by the improved solid-phase synthesis is four times higher than the product synthesized by the hydrothermal method. an efficient Cl − -Cr 3+ charge transfer sensitization facilitated by localized electrons in [CrCl 6 ] 3− octahedron is the mechanism for the strong NIR emission of Cr 3+ is proposed. Calculations based on density functional theory and Bader charge analysis support the notion that electrons in [CrCl 6 ] 3− octahedrons are strongly localized in Cs 2 NaScCl 6 :Cr 3+ , which is conducive to the Cl − –Cr 3+ charge transfer process, resulting the internal quantum efficiency of 100% and external quantum yield as 42.3%. The highly efficient ultra-broadband NIR emission with excellent stability offers many opportunities for applications in the field of NIR night vision and bio-imaging.
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Symmetry-Basel
·
2023
·Vol. 15
·期 7
·1334
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IF 2.7
Guolin Song,Chengzhu Shen,David Bassir,Qiulin Li
In this study, a facile strategy of regulated self-assembly synthesis of Mn-MIL-100, using sodium acetate (CH3COONa) as a mono-dentate ligand capping agent (CA), was proposed. The as-prepared product is denoted Mn-MIL-100-CA. The coordination modulation of CH3COONa, led by its interference in the connectivity and symmetry of the metal centers and organic nodes, plays a vital role in the synthesis process. The crystallinity, morphology, topology, and properties of such MOF products were improved, since the self-assembly process of Mn-MIL-100-CA was promoted and regulated effectively. The materials were systematically characterized via XRD, SEM, N2isotherms, XPS, and TGA in terms of crystallization behavior, morphology, topology, chemical composition, and thermal and water stability. The ability of Mn-MIL-100 and Mn-MIL-100-CA to remove methylene blue (MB) from an aqueous solution was investigated using a UV–vis spectrophotometer. The results indicate that with the addition of a molar ratio of 50% CH3COONa, Mn-MIL-100-CA particles developed a regularly symmetrical morphology, i.e., ‘spherical pyramid-like structure’ crystals with a dimension of 2~5 μm. Their specific surface area and pore volume increased by 59.2% and 56.7%, respectively. The increased proportion of Mn3+implies reduced crystal defects and improved crystal structural order and integrity, and therefore an enhanced water stability. Mn-MIL-100-CA exhibited excellent adsorption performance towards MB from aqueous solution. The equilibrium adsorption value was as high as 1079.9 mg/g, which is 44.7% higher than that of Mn-MIL-100 without the addition of CA. The good adsorption capacity and excellent water stability mean that Mn-MIL-100-CA has great potential for the practical removal of MB dye pollutants from water.Keywords:metal organic frameworks;Mn-MIL-100;capping agent;symmetry;self-assembly;methylene blue adsorption
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PROGRESS IN ORGANIC COATINGS
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2022
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IF 6.206
Song Duan,Xiuzhou Lin,Baojie Dou,Han Yang,Yingjun Zhang,Wilfred Emori,Xiulei Gao,Zhiwen Fang
In this study, ZIF-8 was used to modify fluorinated graphene (FG) to enhance its compatibility with epoxy resins (EP). Triton X-100 (TX-100) was innovatively used to modify the high F-content FG, enabling the surface to be loaded with large amounts of ZIF-8. SEM, XRD , FT-IR, TGA and XPS results confirmed the successful preparation of the FG@ZIF-8 (FZ). Compared to EP coating, the FG-modified epoxy coatings (FG/EP coatings) had improved corrosion resistance , mechanical properties and wear resistance, and especially long-term corrosion resistance by more than two orders of magnitude. However, the low compatibility of FG with the resin limited the efficient improvement of the corrosion resistance and mechanical properties of the FG/EP coatings. In contrast, the FZ/EP coatings achieved significant improvements in corrosion resistance, mechanical properties, and wear resistance, with the coatings displaying excellent corrosion resistance (|Z| 0.01 Hz close to 1.01 × 10 11 Ω·cm 2 ) after 10,000 h immersion. The high F content 3FZ(T)/EP coating modified by TX-100 also exhibited excellent wear resistance with a 98.3 % reduction in wear rate compared to the EP coating. The significant improvements in the performances of the FZ/EP coatings are attributed to the high compatibility of FZ with epoxy resins, the efficient physical barrier, and the ability of FZ to inhibit electron transport , as well as the high crosslink density of the FZ/EP coatings. This study provides a reference for the development of ultra-high corrosion and wear-resistant coatings.
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ACS Applied Materials & Interfaces
·
2022
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IF 10.383
Jie Yang,Jia Li,Xiaohui Yan,Yangsai Lyu,Ningning Xing,Ping Yang,Peng Song,Min Zuo
A novel multifunctional Janus magnetic micromotor was designed and constructed by using MIL-100(Fe)@TiO2@Fe3O4 multicore–shells modified with horseradish peroxidase (HRP) as a smart active platform to realize detection and degradation of hydroquinone (HQ). The obtained micromotor showed a unique three-dimensional (3D) hierarchical architecture with highly exposed active sites and could autonomously move at a speed of 140 ± 7.0 μm·s–1 by O2 bubbles generated from the catalytic decomposition of H2O2 fuel. Benefiting from the combination of active self-propulsive motion, high peroxidase-like activity, tuned heterojunctions with matching band structures, and a 3D hierarchical structure, an effective platform involving dynamically sensitive detection and quick removal of HQ from water was established by using the multifunctional HRP-integrated MIL-100(Fe)@TiO2@Fe3O4 Janus micromotor. The proposed multifunctional Janus magnetic micromotor had advantages of simple and feasible fabrication, sensitive detection and effective photo-Fenton degradation of HQ in a wide pH range of 4–7, and magnetic recycling, revealing potential for environmental remediation applications.
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Journal of Energy Storage
·
2023
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IF 9.4
Min Li,Fan Luo,Xianghui Liang,Shuangfeng Wang,Xuenong Gao,Zhengguo Zhang,Yutang Fang
Building materials with the dual function of temperature and humidity regulation can improve people's living comfort and reduce energy consumption. In this work, a simple and convenient strategy for building a comfortable indoor temperature and humidity environment was proposed. The phase change humidity control material (PCHCM) was prepared by the mixing of form-stable composite phase change material (CPCM) as temperature-control component and hygroscopic MIL-100(Fe) as humidity-control component. In PCHCM, the CPCM was obtained by molten recombination of myristic acid, tetradecanol, and capric acid (MA-TD-CA) as phase change material and hydrophilic fumed silica (SiO 2 ) as porous carrier, and MIL-100(Fe) was synthesized by low-temperature solution method. Thermal analysis indicated that, under the optimized mass ratio of 28.8%MA-61.2%TD-10%CA, the CPCM containing 30 % SiO 2 could effectively prevent the leakage of ternary eutectic , with a suitable phase change temperature and enthalpy (21.74 °C, 96.70 J·g −1 ). The thermal and wet performance evaluation confirmed that the PCHCMs containing 40–50 % CPCM had human body comfortable phase change temperature (26.96–27.26 °C) and high saturation adsorption capacity (0.179–0.205 g/g) at 60 % RH as well as outstanding thermal and wet cycle reliability, indicating the novel MA-TD-CA/SiO 2 /MIL-100(Fe) PCHCM has broad application potential in room temperature and humidity control and building energy conservation .
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2018
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IF 2.196
Jian Yang,Xianyang Meng,Jiangtao Wu
As the important industrial raw materials, n-pentene, n-hexene, and n-heptene are widely used as gasoline additives to improve the combustion characteristics of gasoline and polymerized monomer to synthesize many important polymer compounds. Therefore, reliable density data are significant for these fluids to apply in industry. In this work, new experimental densities of n-pentene, n-hexene, and n-heptene have been measured at pressures up to 100 MPa along nine isotherms between 283 and 363 K by using a high pressure vibrating-tube densimeter. The experimental system was calibrated using water and a vacuum and was tested with R134a over the entire temperature and pressure ranges. The combined expanded uncertainties of the temperature, pressure, and density with a level of confidence of 0.95 (k = 2) are estimated to be 16 mK, 0.062 MPa (p ≤ 60 MPa), 0.192 MPa (60 MPa < p < 100 MPa), and up to 0.6 kg·m–3 depending on the temperature and pressure ranges. The density data were correlated with the Tait-like equation, and the average absolute deviations are 0.06, 0.04, and 0.05%. Furthermore, the isothermal compressibility and the isobaric thermal expansivity were derived from the Tait-like equation over the experimental temperature and pressure ranges.
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ACS Applied Materials & Interfaces
·
2016
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IF 7.145
Yu-Da Zhu,Su-Ping Chen,Huan Zhao,You Yang,Xiao-Qin Chen,Jing Sun,Hong-Song Fan,Xing-Dong Zhang
A medical nanoplatform with small size, low cost, biocompatibility, good biodegradability, and, in particular, multifunctionality has attracted much attention in the exploration of novel therapeutic methodologies. As an emerging material of self-assembled porous structure, metal–organic frameworks (MOFs) have high expectations because of their special properties compared to traditional porous materials. Therefore, integration of MOFs and functional materials is leading to the creation of new multifunctional composites/hybrids. Photothermal therapy (PTT), using near-IR (NIR) laser-absorbing nanomaterials as PTT agents, has shown encouraging therapeutic effects to photothermally ablate tumors. However, the most of widely used PTT agents are inorganic materials and nonbiodegradable. Herein, uniform polypyrrole (PPy) nanoparticles (NPs) with good biodegradability were synthesized by a microemulsion method. The PPy NPs were further coated with the mesoporous iron-based MOF structure MIL-100 by interaction between PPy NPs and MIL-100 precursors at room temperature. As a multifunctional nanoplatform, an anticancer drug could easily be loaded into the mesopores of the MIL-100 shell. The PPy core, as an organic photothermal agent, is able to photothermally ablate cancer cells and improve the efficacy of chemotherapy under NIR irradiation. The composites showed an outstanding in vivo synergistic anticancer capacity. Our work could encourage further study in the construction of a synergetic system using MOFs and organic PTT agents.
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