CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Lin Wang,Shoudie Yue,Mengyang Li,Mei Wang,Wenqi Wang,Jirong Yu,Shaolong Wang,Baojun Liu
Sulfur-doped MgFe 2 O 4 constructs oxygen-vacancy-rich surfaces, enhancing interfacial charge transfer. • Fe centers and the electron transfer pathway form a dual-electron activation mechanism for PMS activation. • The electron transfer pathway boosts radical generation by 2.0-fold compared to single-pathway systems. • S-MgFe 2 O 4 achieves 91.59% tetracycline degradation with 85.98% activity retention after six cycles. The electron transfer pathway (ETP) in Fenton-like reactions enables the selective degradation of electron-rich micropollutants, yet the potential synergistic interplay between ETP and radical pathways remains underexplored. Herein, we synthesize sulfur-doped MgFe 2 O 4 with abundant oxygen vacancies (S-MgFe 2 O 4 /OVs) and unveil a novel “dual-electron migration pathway,” where ETP synergistically enhances radical generation for peroxymonosulfate (PMS) activation. Electrons can migrate from electron-rich pollutants to Fe sites via an electron shuttling bridge (S-MgFe 2 O 4 ), serving as an additional electron source to accelerate the rate-limiting step of Fe(III)/Fe(II) cycling, thereby promoting PMS cleavage and amplifying the generation of SO 4 •− and • OH. This synergy enables the S-MgFe 2 O 4 /PMS system to achieve 91.59% tetracycline degradation within 20 min (k obs = 0.1125 min −1 , 1.76-fold higher than that of undoped MgFe 2 O 4 ) with excellent stability (85.98% activity retention after six cycles). Our work pioneers a new paradigm for regulating radical generation via electron transfer, offering a transformative strategy for designing synergistic advanced oxidation process catalysts.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·Vol. 143
·期 40
·e71328
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IF 3.1
Peng Zhao,Hena Ming,Lianyi Hu,Qin Wang,Rui Zhang,Xiaoqing Guo,Chuanjie Zhang,Jie Liu
Silica aerogel is a nanostructured material with high specific surface area, high porosity, low density and excellent heat insulation properties. These properties offer exciting applications in thermal fabric. But the weak mechanical properties caused by the hydrophilicity limit its further development and application. In this study, Methyltrimethoxysilane (MTMS) is used as a precursor to introduce methyl groups to induce hydrophobicity in aerogels and ambient pressure drying is used for the preparation of hydrophobic silica aerogels and the optimal preparation conditions are investigated. Meanwhile, silica aerogel particles modified by γ-Methacryloxypropyltrimethoxysilane (KH-570) with excellent dispersity and high thermal performance are integrated into polyethylene terephthalate (PET) via the melt blending method, and then processed into PET/silica aerogel composite fibers through melt spinning. The results demonstrated that the hydrophobic silica aerogels prepared via ambient pressure drying process using MTMS as a precursor eliminated the need for post-synthesis hydrophobic modification, thereby avoiding pollution caused by organic solvents and hydrophobic modifiers. The obtained silica aerogels exhibited excellent hydrophobicity and thermal insulation performance, with a density of 0.14 g·cm −3 , a porosity of 93.6%, a thermal conductivity of 0.032 W·m −1 ·K −1 , and a water contact angle of 137.1°. Furthermore, the incorporation of silica aerogel particles into PET fibers reduced the calculated thermal conductivity based on an idealized thermal conductivity model from 0.0899 to 0.0564 W·m −1 ·K −1 , corresponding to a 37.3% reduction. These results demonstrate that the PET/silica aerogel composite fibers possess excellent thermal insulation performance. Therefore, the developed composite fibers show great potential for applications in extreme environments where both superior thermal insulation and hydrophobicity are required.
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ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Shuang Wei,Sheng Zhong,Chao Bao,Linbo Huang,Kexin Li,Ruirui Wang,Bin He,Ruirui Zhang,Ruixia Liu
The selective electrocatalytic oxidation of glycerol to high-value C2–C3 chemicals offers a promising approach to glycerol overproduction, while it struggles with precise C–C cleavage and limited selectivity from multiple pathways. Regulating the adsorption capacity of glycerol oxidation intermediates and the degree of C–C bond cleavage through the interfacial electronic structure of electrocatalysts is crucial for controlling C2–C3 selectivity. Herein, a self-supported p-n heterojunction catalyst (Co3O4/CeO2) is developed for the efficient electrocatalytic oxidation of glycerol to C2 chemicals, achieving a glycolic acid selectivity of 42%, with a yield of 19.6 μmol cm–2 h–1. The built-in electric field enables rapid interfacial charge transfer from CeO2 to Co3O4, which leads to the upshifted d-band center of active Co3O4. Electrochemical characterization and theoretical calculations demonstrate that the heterojunction promotes the adsorption of hydroxyl species and glycerol, thereby enhancing the activity of the glycerol oxidation reaction (GOR). Concurrently, the optimized electron cloud distribution of Co3O4 active sites strengthens the adsorption of oxygen-containing intermediates while weakening the adsorption of glycolic acid and suppresses the further cleavage of C–C bonds, thus increasing glycolic acid selectivity. This study clarifies the redox kinetic adsorption regulation mechanism of the Co3O4/CeO2 heterojunction catalyst and provides a highly promising electrocatalyst design strategy for the production of high-value-added C2 products via glycerol oxidation.
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TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
·
2025
·
IF 4.7
Tao-tao LI,Jin-peng QU,Lu-lu ZHAO,Peng-fei WANG,Jun-hong ZHANG,Ting-feng YI
To explore high-performance cathode materials for aqueous ammonium ion batteries (AAIBs), vanadium-based Prussian blue analogue composites (VFe-PBAs) were prepared by hydrothermal coprecipitation method to enhance the reversible storage of NH 4 + . Benefiting from the stable three-dimensional structure and spacious gap position, VFe-PBAs-2 cathode displays excellent electrochemical activity and rate performance, achieving a high specific capacity of 84.3 mA·h/g at a current density of 1000 mA/g. In addition, VFe-PBAs-2 cathode also shows impressive long-term cycle durabilitywith 85.2% capacity retention after 3×10 4 cycles at 5000 mA/g. The synthesized cathode materials combined with the high electrochemical activity of vanadium ions significantly promote the rapid transfer of NH 4 + . Furthermore, NH 4 + embedding/extraction mechanism of VFe-PBAs-2 cathode was revealed by electrochemical kinetics tests and advanced ex-situ characterizations. The experimental results demonstrate that vanadium-modified VFe-PBAs-2 as a cathode material can remarkably improve the capacity, electrochemical activity and cycling stability of AAIBs to achieve high performance NH 4 + storage.
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ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Xiwang Hou,Tianhao Chen,Minggang Zhao,Ye Ma
The development of tunable metamaterials has attracted increasing attention. However, achieving real-time modulation of the optical properties remains a significant challenge. Stimuli-responsive polymers with their rapid response characteristics offer new opportunities for applications in optical modulation and sensing. Here, we propose a novel approach for controlling interparticle spacing and pH sensing by constructing a plasmonic metasurface via self-assembly of nanoparticles (NPs) at the liquid–liquid interface. Variations in the surface plasmon resonance peak position and reflectance in the reflection spectrum indicate changes in the interparticle spacing within the metasurface. Furthermore, pH variations in the aqueous phase modulate the intensity of the Raman characteristic peaks in surface-enhanced Raman scattering spectra. We demonstrate that AuNPs modified with poly(4-vinylpyridine) (P4VP) exhibit reversible pH-responsive behavior. The pH-induced coupling and decoupling of plasmonic modes enable tunable interparticle distances from 14 to 2.2 nm and linear pH sensing over a broad range of pH 3 to 11. The sensing performance has also been validated in practical samples.
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CHINESE JOURNAL OF CATALYSIS
·
2026
·
IF 17.2
Haodong Xie,Yumeng Fo,Hongwei Zhang,Hua Xu,Xiao Zhang,Yingshuo Guo,Runze Li,Ruolin Zhang,Guilin Liu,Xicheng Jia,Jiazhou Li,Yuming Zhang,Meizan Jing,Weiyu Song,Wenhao Luo,Zhijie Wu
Developing efficient Pt-based catalysts is crucial for sustainable lactic acid (LA) production via glycerol oxidation. Herein, we synthesized a series of robust PtIn/Sn-MFI catalysts with low Pt loading of 0.5 wt% for glycerol oxidation under base-free conditions. The PtIn/Sn-MFI catalysts with varying In contents exhibited a volcano-shaped trend between turnover frequency (TOF) and In/Pt molar ratio. Among all tested catalysts, the Pt 0.5 In 1.0 /Sn-MFI sample exhibited the highest catalytic activity (1283 h –1 ), achieving 96.8% glycerol conversion with 73.5% LA selectivity, surpassing the monometallic Pt 0.5 /Sn-MFI catalyst. Furthermore, the Pt 0.5 In 1.0 /Sn-MFI catalyst maintained excellent stability, with no significant degradation in catalytic performance even after five consecutive recycling runs. Experimental analysis and characterizations verified the formation of PtIn 2 nanoalloys, accompanied by electron transfer from In to Pt, which significantly enhanced the catalysts’ O−H bond activation ability, resulting in high activity and selectivity. Combined with kinetic studies and density functional theory calculations, we further revealed that PtIn 2 nanoalloy active sites significantly reduce the activation energy barrier for the dehydrogenation of the secondary hydroxy group in the reaction pathway. This work offers new perspectives on the rational design of cost-effective, high-efficiency catalysts for the sustainable oxidation of glycerol to LA.
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Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 10
·3634-3643
·
IF 6.4
Jundang Liang,Botian Li,Xiaodong Gai,Ning Li,Jian Wang,Yichi Zhang,Qiong Zhou,Yuchao Sun
The excessive use of paper causes serious resource consumption and environmental pollution. Environmentally friendly light printing based on a photochromic system with the advantages of being noncontact, rapid, and inkless has attracted increasing attention; however, several problems need to be addressed, such as slow discoloration and irreversibility. In this work, a composite of MoO3−x inorganic nanorods and the conductive polymer poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) was employed as a color-changing electrode, and a photochromic/electrochromic strain sensor (PESS) was obtained by assembling the color-changing electrode with an organohydrogel electrolyte and a flexible indium tin oxide (ITO) film. Due to the photochromic/electrochromic effect of MoO3−x and the conductivity of PEDOT:PSS, the sensor turned cyan-blue under UV irradiation or a negative bias voltage, and it could be rapidly bleached by applying a positive bias voltage. The photochromic/electrochromic behavior of the PESS could be optimized by tuning the amount of PEDOT:PSS, and the device could perform cyclic light printing/electroerasing with a fast and stable response. Moreover, the flexible strain sensor could be utilized to monitor mechanical strain by translating a series of deformations into electrical signals. The properties of photochromism/electrochromism and strain sensing make the device potentially applicable to outdoor wearable devices capable of light-based printing.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Shanliang Jiang,Changhao Li,Yaseen Muhammad,Ying Tang,Ruimeng Wang,Junjie Li,Jing Li,Zhongxing Zhao,Zhenxia Zhao
Construction of highly-active photothermal catalysts featuring merits of high quantum efficiency and superior heat resistance is a great challenge during volatile organic compounds (VOCs) degradation under high humidity. Herein, a facile solvent-induced dimensionality reduction strategy was proposed to engineer a nanosheeted and polycrystalline Cu/Mn-based catalyst (M-Cu/MnO x ) having interfacial oxygen vacancies for enhanced photo-thermal catalytic degradation of toluene under highly humid conditions. Unique Cu-mediated δ-MnO 2 /Mn 3 O 4 nanosheets with high surface area exhibited excellent light absorptivity and photogenerated carrier separation efficiency, as well as superior light-driven thermogenesis. It realized ultra-high (92.8%) toluene conversion and deep mineralization (84.4%) under RH = 80% and continuous catalytic reaction (200 h). Its toluene degradation rate exhibited 3.5–71.9 times higher than reported state-of-the-art photothermal catalysts. The newly designed M-Cu/MnO x catalyst provides a promising, low-cost and alternative for the efficient degradation of toluene and other similar VOCs under humid conditions on large-scale operations.
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Nature Communications
·
2023
·Vol. 14
·期 1
·1-9
·
IF 16.6
Yan Zishuo,Liu Xiaoyan,Ding Bin,Yu Jianyong,Si Yang
Chemical warfare agents (CWAs) significantly threaten human peace and global security. Most personal protective equipment (PPE) deployed to prevent exposure to CWAs is generally devoid of self-detoxifying activity. Here we report the spatial rearrangement of metal-organic frameworks (MOFs) into superelastic lamellar-structured aerogels based on a ceramic network-assisted interfacial engineering protocol. The optimized aerogels exhibit efficient adsorption and decomposition performance against CWAs either in liquid or aerosol forms (half-life of 5.29 min, dynamic breakthrough extent of 400 L g −1 ) due to the preserved MOF structure, van-der-Waals barrier channels, minimized diffusion resistance (~41% reduction), and stability over a thousand compressions. The successful construction of the attractive materials offers fascinating perspectives on the development of field-deployable, real-time detoxifying, and structurally adaptable PPE that could be served as outdoor emergency life-saving devices against CWAs threats. This work also provides a guiding toolbox for incorporating other critical adsorbents into the accessible 3D matrix with enhanced gas transport properties.
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Small
·
2023
·Vol. 19
·期 25
·2301164
·
IF 13.3
Feng Gao,Zheming Tong,Weiqiang Xiao,Quan Liu,Jianguo Lu,Yang Hou,Qinggang He,Xiang Gao,Dangguo Cheng,Xiaoli Zhan,Yaoguang Ma,Qinghua Zhang
In recent years, growing concerns regarding energy efficiency and heat mitigation, along with the critical goal of carbon neutrality, have drawn human attention to the zero-energy-consumption cooling technique. Passive daytime radiative cooling (PDRC) can be an invaluable tool for combating climate change by dispersing ambient heat directly into outer space instead of just transferring it across the surface. Although significant progress has been made in cooling mechanisms, materials design, and application exploration, PDRC faces challenges regarding functionality, durability, and commercialization. Herein, a silica nanofiber aerogels (SNAs) functionalized poly(vinylidene fluoride-co-hexafluoropropene) (P(VDF-HFP)) membrane (SFP membrane), inspired by constructional engineering is constructed. As-prepared membranes with flexible network structure combined hierarchical structure design and practicability principal. As the host material for thermal comfort management (TCM) and versatile protection, the SFP membrane features a large surface area, porous structure, and a robust skeleton that can render excellent mechanical properties. Importantly, the SFP membrane can keep exceptional solar reflectivity (0.95) and strong mid-infrared emittance (0.98) drop the temperature to 12.5 °C below ambient and 96 W m −2 cooling power under typical solar intensities over 910 W m −2 . This work provides a promising avenue for high performance aerogel membranes that can be created for use in a wide variety of applications.
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LWT-FOOD SCIENCE AND TECHNOLOGY
·
2023
·
IF 6
Yurou Yun,Jian Li,Fei Pan,Yijun Zhou,Xiangqiao Feng,Jun Tian,Shengbao Cai,Junjie Yi,Linyan Zhou
Low-sugar jams (LSJ) are promoted as a healthier food option due to the healthy trend, and significant color changes negatively affects the evaluation of these products. To reveal protective effect of low methoxyl & amidated pectin (LMA) on anthocyanin in jam treated by high-pressure processing (HPP), this study compared the changes in microbes and quality attributes of LSJ prepared with LMA and high-sugar pomegranate jam (HSJ) prepared with high methoxyl pectin (HMP) after HPP at 600 MPa for 5 min during accelerated storage at 35 °C for 30 days, and molecular dynamics simulation was conducted to reveal the interaction between LMA and anthocyanin. LSJ-HPP had better color quality with higher values of L* , a* , and total anthocyanin content (TAC), the corresponding percent polymeric color and browning index were 41% and 16% lower than those of HSJ-HPP, respectively. TAC in LSJ-HPP, HSJ, and HSJ-HPP decreased to 9.5, 8.6, and 6.0 mg/kg (pomegranate puree) after storage, respectively. Cyanidin-3- O -glucoside formed more H-bonds with LMA than HMP, while their total interaction energy and the binding frequency and number were also higher. This study provided a foundation for the processing and storage of high quality LSJ, and also broadened the application field of HPP technology.
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ACS Catalysis
·
2023
·
IF 12.9
Yingying Cheng,Wenjing Xu,Jing Hou,Peng Kang
The electrosynthesis of multi-carbon chemicals such as glyoxylic acid (GX) and glycolic acid (GC) from oxalic acid (OA) offers a feasible pathway to achieve sustainable chemical production, especially when coupled with the electroreduction of CO2 to form OA. Here, we demonstrate a series of gallium tin oxide catalysts for selective, controlled OA electroreduction to GX and GC in acidic media. The product distribution can be tuned by changing the reaction temperatures. At room temperature using the GaSnOx/C catalyst, GX can be obtained with a GX Faradaic efficiency (FEGX) of 92.7% at −0.7 V vs RHE and a GX current density (jGX) of −100.2 mA cm–2. At a raised temperature of 80 °C using the GaSnOx/C catalyst, a GC Faradaic efficiency (FEGC) of 91.7% at −0.8 V vs RHE can be obtained. The accelerated OA electroreduction results from the Ga/Sn synergy in the catalysts. A proper Ga/Sn ratio not only enriches OA adsorption and enhances surface binding of intermediates, but also ensures catalyst stability in acidic media.
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