JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
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2025
·Vol. 40
·期 4
·946-952
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IF 1.1
Guo Jiahua,Wei Tao,Huagn Zhixiong,Deng Zongyi,Shi Minxian
We aimed to enhance the flame retardancy of epoxy resin (EP) by synthesizing a novel, halogen-free flame retardant through a one-pot method. The synthesis utilized 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), furfurylamine (FA), and benzene propionaldehyde (BPA) as raw materials. We conducted differential scanning calorimetry (DSC) analysis to investigate the effects of FPD on the curing process and thermal properties of EP. Our findings reveal that incorporating FPD into EP can facilitate a faster curing process and increase the carbon residue post-combustion. Specifically, the FPD/EP-7 composite demonstrates a limiting oxygen index (LOI) of 34.9% and achieves a UL-94V-0 rating with a phosphorus content of 0.91wt%. These results indicate that FPD significantly enhances the thermal stability and charring rate of EP, thereby improving its flame retardancy. Although the addition of FPD slightly reduces the mechanical properties of EP, the composite material maintains excellent performance.
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JOURNAL OF CHROMATOGRAPHY A
·
2025
·
IF 4
Lei Yu,Bo Liu,Pucheng Wang,Shuai Liu,Junjie Sheng,Yinyong Ao
1,4-Bis(phenylethynyl)benzene blended with an activated carbon-supported palladium catalyst (DEB-Pd/C) has been demonstrated as an effective hydrogen scavenger in reducing hydrogen gas accumulation within vacuum-sealed and hermetically closed systems. Accurate determination of the hydrogen mass fraction in reacted 1,4-bis(phenylethynyl)benzene is essential for guiding the replacement of hydrogen-absorbing materials. In this study, a novel method for determining the hydrogen mass fraction in reacted DEB was developed. First, the reaction products of DEB with hydrogen gas were isolated and characterized using gas chromatography-mass spectrometry (GC-MS). A correlation between the peak areas of the reaction products and the saturation level of DEB was established. The hydrogen mass fraction in the reacted DEB was precisely determined based on the relationship between DEB saturation and hydrogen content. Furthermore, the effect of O₂ on the hydrogen uptake of DEB was investigated using the developed method. The results demonstrate that this method exhibits high detection sensitivity and accuracy for determining the hydrogen mass fraction in reacted DEB, offering a reliable approach for monitoring hydrogen absorption in such systems.
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CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Yimeng Du,Jian Li,Mingfu Zhu,Pengcheng Lin,Ying Chen
State-of-the-art solar-driven evaporation systems plays an important role in generating clean freshwater with near zero energy consumption. There still remains pressing needs for innovative system design to enhance evaporation rates. Herein, synergistic enhancement of solar interface evaporation by oxidation engineering of photothermal materials, hybridization of water channels and energy supplement of waterwheel is proposed. Oxidation engineering is used to prepare a conjugated oxidized polybenzene, exhibiting high solar absorption capabilities of 87.5 %. Chitosan hydrogel is combined with poly (methacrylic acid) to acquire a self-supporting water transport structure. The obtained bilayer evaporator achieves an evaporation rate of 2.07 kg·m −2 ·h −1 and an energy efficiency of 93.0 %. Building upon these materials, a waterwheel system that utilizes the kinetic and potential energy of water is constructed. This system increases the evaporation rate to 4.13 kg·m −2 ·h −1 with minimal water flow. This system demonstrates the potential for efficient and sustainable clean water production, underscoring its significance in addressing water scarcity challenges.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Jingling Gong,Bin Xiang,Ruirui Jin,Zhaoyang Li,Weimin Liu,Jian Li
Membrane fouling is a key challenge to the sustainable operation of oil–water separation membranes. Constructing a stable hydration layer on the membrane surface as an oil-fouling resistance barrier by modulating the physicochemical structure of the membrane is one of the most effective strategies. Herein, inspired by the petal structure in nature, Cu 3 (PO 4 ) 2 and UiO-66-NH 2 particles were combined by a self-assembly strategy to construct CUP (Cu 3 (PO 4 ) 2 /UiO-66-NH 2 /PVA) composite membranes with anti-fouling capability against viscous crude oil. Benefiting from the petal structure and abundant polar groups within the membrane, the as-prepared membrane could easily combine with water molecules to form a stable hydration layer, which acted as a barrier to hinder the oil contamination of the membrane. Further, the hierarchical flower-like structure was conducive to the improvement of the emulsion breaking rate and permeation flux of oil-in-water emulsions. After 60 min continuous cross-flow separation, the obtained CUP composite membrane still remained prominent separation efficiency (99.6 %) and permeate flux (4685.96 LMH/bar). In addition, the CUP composite membranes showed outstanding resistance to acid and alkali as well as abrasion. This study provides an effective method for the advancement of high-performance membranes with high flux and anti-fouling capability in the flied of oily wastewater treatment.
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CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Chanjuan Yang,Shoukang Xiao,Liyu Chen,Yingwei Li,Kui Shen
γ-Valerolactone (GVL) as an important high-value chemical can be readily produced through the catalytic hydrogenation of renewable levulinic acid (LA). However, high reaction temperatures (70–240 ℃) and H 2 pressures (0.5–6 MPa) are usually required to achieve full LA conversion and desired GVL yield in previous studies. Herein, we report, for the first time, the ambient-condition upgrading of LA to GVL by rationally constructing a series of metallic–acidic Ru x Pt y /MIL-101 catalysts comprising RuPt-alloyed nanoparticles (NPs) and Lewis-acid sites within a chromium-based MOF (namely MIL-101). Benefiting from the favorable synergy between Ru and Pt in their alloyed NPs and abundant Lewis-acid sites in MIL-101, the best Ru 4 Pt 1 /MIL-101 featuring an optimized Ru/Pt molar ratio of 4:1 shows a complete LA conversion with > 99.9 % yield of GVL under unprecedented ambient temperature and pressure, affording a high turnover frequency (TOF) of 1480.5h −1 , which is 15.1 and 10.1 times that of its monometallic Pt/MIL-101 (98.3 h −1 ) and Ru/MIL-101 (146.7 h −1 ) counterparts, respectively. Detailed experiments and density functional theory (DFT) calculations suggest the RuPt-alloyed effect and Lewis-acid sites in Ru 4 Pt 1 /MIL-101 can optimize the adsorption energy of 4-hydroxyvaleric acid (HPA) to remarkably boosting its catalytic performance for this reaction.
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Reaction Chemistry & Engineering
·
2025
·
IF 3.1
Zhangxinyu Fan,Muhan Li,Yifan Sun,Weixiang Wang,Qin Zhong,Boyang Liu
Since its discovery by Otto Roelen, hydroformylation has attracted extensive attention for its ability to extend the carbon chain of olefins. Aldehydes, which are converted by the hydroformylation of olefins and syngas (CO/H2), are not only high-value products, but also intermediates to produce fine chemicals, such as alcohols, esters and amines. The currently used homogeneous catalysts bring about the loss of precious metals and the discharge of phosphorus-containing wastes. Therefore, heterogeneous catalysts are developed to simplify the separation process and enhance catalyst recovery. However, the reaction kinetics of heterogeneous hydroformylation, especially the hydroformylation of long-chain olefins, remain unclear. Unlike homogeneous hydroformylation, terminal olefins can be isomerized to internal olefins on heterogeneous catalysts, and can be further converted to different branched aldehydes. Thus, the reaction kinetic of heterogeneous hydroformylation is more complex. In this work, we established a kinetic model for the heterogeneous hydroformylation of long-chain terminal olefins on Rh-based phosphides, using 1-hexene as the model reactant. This kinetic model agrees well with the density functional theory (DFT) results, and can be used to predict the regioselectivity under different reaction conditions. This study reveals the kinetic mechanism of heterogeneous hydroformylation of long-chain terminal olefins, which paves the way for the rational design of heterogeneous catalysts and the theoretical optimization of reaction conditions.
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Processes
·
2025
·Vol. 13
·期 7
·2159
·
IF 2.8
Xue-Mei Zhang,Shi-Zhong Yang,Homely Isaya Mtui,Bo-Zhong Mu
Recently, vegetable oil-derived monounsaturated fatty acids (MUFAs) have predominantly been utilized in producing bio-based surfactants, resulting in low bioresource utilization and high separation costs. Although polyunsaturated fatty acids (PUFAs) are abundant and often co-exist with MUFAs, bio-based surfactants synthesized from PUFA-rich feedstocks have been less researched due to concerns regarding their interfacial performance. In this study, a novel series of PUFA-based zwitterionic surfactants with strong interfacial activity was synthesized from waste vegetable oils via an eco-friendly three-step process, optimized through an orthogonal experimental design. The structures and conversion rates of the surfactants were confirmed using GC-MS, LC-MS, and ESI-MS. At 0.5 g/L and 3.0 g/L (typical concentrations often used in most oil fields), the bio-based surfactants derived from waste soybean oil (PUFA-to-MUFA ratio ≈ 2.11, C18:2, and C18:1 in large contents) could reduce the interfacial tension between Daqing crude oil and simulated formation groundwater to an ultra-low level of ~10−3mN/m. These results confirm our hypothesis that bio-based zwitterionic surfactants derived from PUFA-rich feedstocks possess excellent interfacial activity, providing a potential sustainable option to be considered for chemically enhanced oil recovery.
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Advanced Healthcare Materials
·
2025
·
IF 9.6
Danying Yi,Tao Wang,Shuangshuang Xu,Yuying Liu,Zhonghao Wang,Ning Li,Ye Wu,Yiyan He
Conventional cancer treatments often result in tissue loss, incomplete tumor excision, infections, and systemic toxicity, severely impacting patient recovery. These complications frequently involve excessive reactive oxygen species (ROS) generation and persistent inflammation, pathological features also characteristic of burn wounds and postoperative tumor sites. To address this, an injectable ROS/pH-responsive hydrogel integrating localized tumor therapy and wound healing is developed. The hydrogel is fabricated via Schiff base crosslinking of a thioketal-based ROS-cleavable linker with aldehyde-functionalized hyaluronic acid, enabling degradation under oxidative and acidic conditions. The hydrogel demonstrates mechanical robustness, excellent biocompatibility, and stimulus-triggered, on-demand drug release. In a breast tumor model, the designed hydrogel facilitates controlled co-delivery of a chemotherapeutic agent 5-fluorouracil (5-FU) and a photosensitizer precursor 5-aminolevulinic acid (ALA), and ensures precise, sustained drug release, achieving synergistic chemo-photodynamic therapy and superior tumor inhibition. Given the pathological similarities between tumor resection wounds and burn injuries, a second-degree burn model is employed to assess the hydrogel's regenerative performance under ROS-rich, inflammation-prone conditions. The hydrogel enables localized antioxidant drug N-acetyl-L-cysteine (NAC) delivery and non-mechanical, on-demand removal. These findings highlight the potential of this multifunctional hydrogel as a minimally invasive, dual-purpose platform for managing cancer-associated tissue injuries and oxidative stress-mediated wound healing.
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CHEMISTRY OF MATERIALS
·
2025
·
IF 7
Panpan Yang,Sheng Lu,Yuemiao Zhang,Xiaoting Lu,Pengfei Huang,Kun Wu,Jun Shi,Yi Fu
The production of degradable polymer materials with high thermal conductivity is urgently needed to reduce plastic pollution from electronic waste. This research prepared a series of intrinsically thermally conductive polyesters (L-LCPs) by the melt polycondensation reaction of biphenyl diol with three different dicarboxylic acids, which are dl-tartaric acid, dl-malic acid, and diethanolic acid. The thermal conductivity and hydrolysis behavior of these were investigated. Biphenyl group π–π stacking enhances the interchain interactions and endows the polyester with high thermal conductivity. The thermal conductivity of L-LCP3 reaches 0.716 W/(m·K), showing a significant improvement of 168.8% compared to L-LCP1, which is 3.5 times higher than polyethylene terephthalate (PET). The differential scanning calorimetry (DSC) results of the cooling process and the polarizing optical microscopy (POM) pictures showed that all of the L-LCPs are bidirectional thermotropic liquid crystal polymers. Meanwhile, the L-LCPs were efficiently hydrolyzed to valuable raw materials by using the mixed solvents tetrahydrofuran (THF) and H2O. The notable merits of the solvent system are the fragmentation effect of tetrahydrofuran and the enhancement of the catalyst NaOH activity by H2O. The L-LCPs are transformed into oligomers or monomers as the hydrolysis reaction proceeds. The residue weights of L-LCP3 were reduced to 67.2% in the THF–H2O solvent system. The T5%, Tmax, and residual carbon of L-LCP3 were 375.1 °C, 430.4 °C, and 6.2% at 800 °C, respectively, indicating that it has good thermal stability.
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2025
·
IF 14.3
Meng Xu,Jiahao Geng,Jianxi Liu,Wanqi Jie,Yadong Xu
Organic semiconducting (OSC) X-ray detectors offer exciting opportunities for developing biocompatible, tissue-equivalent, flexible, and low-cost X-ray detection technologies. However, detection sensitivity is limited by the low X-ray attenuation efficiency of the organic active layer. Here, we present a novel strategy to enhance X-ray absorption by incorporating high atomic number ZnO nanoparticles (NPs) into 4-hydroxycyanobenzene (4HCB), an OSC material. A space-confined melt process was employed to fabricate well-oriented 4HCB/ZnO composite films. Strong π-π interactions between benzene rings in 4HCB promote layered growth, enabling uniform dispersion of ZnO NPs throughout the 4HCB film. Under 17.9 keV X-ray irradiation, the 4HCB/ZnO device exhibited a sensitivity of 477 μC Gy air −1 cm −2 , approximately 20 times higher than that of pure 4HCB film. This enhancement is primarily attributed to impact ionization induced by nanoparticles. Simulations confirmed that Mie scattering effect, resulting from the effective nanoparticle size, extends X-ray’s radiation path length, leading to improved charge generation efficiency in the composite detectors. The composite film also exhibits high resistivity, fast mobility, a large on/off ratio, and a low detection limit, making the combination of inorganic NPs and OSC materials a promising strategy for achieving high-performance, low-cost X-ray detectors and imaging systems.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
·
IF 5.4
Xinyan Xiong,Zhuang Wang,Xiaoyu Li,Mian Li,Xiangjie Bo
Cobalt (Co)-based bimetallic alloys, formed by incorporating a secondary metal with Co, demonstrate improved catalytic performance for glucose/H 2 O 2 sensing. Nevertheless, limitations related to their porous structures and the availability of active sites have led to a restricted linear detection range. Designing three-dimensional (3D) architectures composed of orderly stacked two-dimensional (2D) carbon nanosheets (NSs) reveals abundant hierarchical pores and three-phase interfaces, which facilitate efficient mass and electron transfer while simultaneously enhancing the dispersion of additional active centers. The present study proposes a novel 3D hierarchically porous 'honeycomb' structure self-assembled from numerous cobalt iron (CoFe) nanoparticles integrated with 2D ultrathin NSs doped with boron (B) and nitrogen (N) (referred to as CoFe-BN-CNSs T NSs). The optimized CoFe-BN-CNSs 900 NSs exhibit excellent electrical conductibility, abundant mesoporous structures, and a remarkably high doping level of B/N electrochemically active sites (9.71 atom %). The CoFe-BN-CNSs 900 NSs-based H 2 O 2 sensor displays a wide linear detection range from 0.04 to 16.10 mM, along with a high sensitivity of 127.20 uA cm −2 mM −1 . For glucose detection, the sensor exhibits a wide linear range of 0.01–9.35 mM and a high sensitivity of 118.90 uA cm −2 mM −1 . Notably, the CoFe-BN-CNSs 900 NSs-derived sensors for H 2 O 2 and glucose detection demonstrate excellent reproducibility, stability, and strong resistance to interference from electroactive molecules and inorganic salts. In particular, CoFe-BN-CNSs 900 NSs-based electrochemical sensors demonstrate remarkable accuracy in the quantification of H 2 O 2 concentrations in disinfectant solutions and glucose levels in serum samples, thereby highlighting their potential for practical applications. This study presents a novel approach for the sensitive and rapid detection of H 2 O 2 and glucose in real-world samples.
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Advanced Composites and Hybrid Materials
·
2025
·Vol. 8
·期 4
·1-23
·
IF 21.8
Yin Xiujuan,Xue Shuqin,Ji Jiaqi,Zhao Mingyu,Shao Min,Yin Likang,Zhang Saisai,Liu Lei,Li Bin,Zhang Lei,Li Yuan,Wang Xiao
Liver fibrosis (LF) is a leading cause of liver-related mortality worldwide. Although antifibrotic drugs are commonly used in clinical practice, their efficacy remains limited. Excessive reactive oxygen species (ROS) in the fibrotic liver microenvironment play a crucial role in LF progression. Nanozymes, owing to their enzyme-mimicking catalytic activity and antioxidant properties, offer a promising strategy for LF treatment. Vanadium-based nanozymes exhibit ROS-scavenging capabilities and promote fibrosis reversal, while zirconium (Zr)-based metal–organic frameworks (MOFs), such as UiO-66, possess excellent biocompatibility and catalytic activity. However, the therapeutic efficacy of nanozymes is hindered by their intrinsic catalytic limitations. Ultrasound (US), a non-invasive therapeutic modality, has been shown to enhance nanozyme activity and improve treatment outcomes. In this study, we developed a dual-nanozyme composite (UiO-66/V 2 C/L-Arg/pPB, UVLp) with targeted ROS-scavenging and L-arginine (L-Arg) delivery capabilities. Upon ultrasound exposure, UVLp releases L-Arg and nanozymes, facilitating nitric oxide (NO) generation, alleviating oxidative stress, and mitigating liver fibrosis. This work introduces a novel ultrasound-activated nanozyme platform for LF therapy, providing valuable insights for clinical translation.
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