JOURNAL OF MATERIALS SCIENCE
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2026
·Vol. 61
·期 15
·10173-10191
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IF 4.4
Liu Zeng,Wu Fang,Zheng Liwei,Sun Xu,Xia Chenghui,Song Hongbing,Zhang Shuai,Qu Xiaofei,Shi Liang
Core–shell Bi 4 NbO 8 Cl@C plate-like heterostrutured photocatalysts were successfully prepared by one-step hydrothermal process, during which glucose solution exhibited reducibility and created amounts of oxygen vacancies for Bi 4 NbO 8 Cl, while a carbon layer was in situ deposited on Bi 4 NbO 8 Cl by glucose decomposition. The structure of Bi 4 NbO 8 Cl was stabilized and armored by the thickness-tailored C layer, which provides a superior performance in the removal of acidic Cr(VI)-contained contaminant water, and the optimal Bi 4 NbO 8 Cl@C achieved 373 folds than pristine Bi 4 NbO 8 Cl in photocatalytic Cr(VI) removal. Experimental results and density functional theory (DFT) calculations show that C layer is tightly coated on the surface of BNC. Furthermore, C–O covalent bonds, which act as electron transfer channels, are formed at the interface of BNC and C layer. This study provides an important reference for the synthesis of core–shell structured photocatalysts and the efficient removal of Cr(VI) from industry wastewater. Graphical
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Journal of Saudi Chemical Society
·
2026
·Vol. 30
·期 2
·19
·
IF 5.2
Zhang Qiuyun,Wu Hanhong,Chen Lianlian,Chen Liangfu,Fan Li,Deng Taoli,Ma Juan,Zhang Yutao
Metal–organic frameworks (MOFs) are recognized as a pivotal role in catalysis. Through control of MOFs synthesis conditions (e.g., time, temperature, ligand content, and agent type), offering the potential for improving catalytic performance and broadening application prospects of porous MOF-based composites. Based on this rationale, a series of HPW@UiO-67 catalysts with different organic ligand concentrations was fabricated via a simple one-pot hydrothermal method and evaluated for esterification activity. Characterization techniques such as FTIR, XRD, N 2 physisorption, SEM, EDX, TG, NH 3 -TPD, Py-FTIR, and XPS were systematically analyzed to determine the physicochemical properties of the synthesized composite catalysts. These analyses confirmed that the concentration of H 2 bpdc ligands significantly influenced the porous characteristics, surface morphology, and catalytic performance of the composites. Among the catalysts tested, the HPW@UiO-67–1 catalyst with the addition of 2 molar quality of H 2 bpdc exhibited superior activity in the production of biodiesel from oleic acid (OA) esterification than that of other synthesized catalysts, achieving a 93.9% conversion, which was primarily attributed to their mesopore surface area (465.8 m 2 /g), available multi-scale pore morphology structure, high acidity capacity (0.95 mmol/g), and abundant Brønsted and Lewis acidic sites. The optimal catalyst of HPW@UiO-67–1 exhibited good stability, and the cyclic experiments showed that the composite catalyst retained over 80% of its activity after four consecutive times. This work validated the synthesis strategic design of porous MOF-based hybrid materials for sustainable and efficient biofuels production. Graphical
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 4
·239
·
IF 5.4
Li Guangyan,Cheng Xiu,Zhu Minnan,Tian Yayang,Chen Linfeng
To address the need for rapid detection of profenofos (PFF) residues, we developed a self-cascaded colorimetric sensor using the bifunctional nanozyme Ce-UiO-66@His, prepared by doping histidine (His) into Ce-UiO-66. The introduction of His optimized the valence state distribution of cerium and increased the concentration of oxygen vacancies, thereby endowing Ce-UiO-66@His with enhanced phosphatase-like and laccase-like activities. Crucially, these two enzymes can efficiently catalyze in sequence under the same catalytic conditions, thereby achieving an integrated self-cascaded catalytic reaction of PFF. Specifically, the phosphatase-like activity hydrolyzes PFF to generate 4-bromo-2-chlorophenol, which is then oxidized by the laccase-like activity and coupled with 4-aminoantipyrine to form a red quinone-imine dye with strong absorbance. This self-cascaded, dual-recognition system provides exceptional selectivity and high sensitivity for PFF, with a detection limit of 0.71 µg/mL. Furthermore, by integrating smartphones and RGB recognition, a portable photo-colorimetric method was developed that realizes rapid and visual quantification of PFF. This work not only presents a new strategy for rapid monitoring of PFF residues but also offers insights into designing efficient biomimetic self-cascaded sensing systems. Graphical abstract
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PubMed
高影响因子
Science China-Materials
·
2026
·
IF 7.7
Qian Changjin,Ma Minjun,Cheng Yanyang,Zhou Yan,Lv Shanshan,Li Feng,Yang Xiaobo,Wu Qikang,Wang Jin,Chen Zheng
The metal-support interactions (MSIs) play a significant role in regulating the electronic structure of metal species on oxide; however, they are often overlooked on carbon-based supports. In this work, hollow nitrogen-doped carbon (H-NC) supported Ru nanoparticles catalyst (Ru/H-NC) was prepared by a solvothermal method using H-NC as support and RuCl 3 as precursor. Subsequently, Ru/H-NC was annealed at different temperatures (Ru/H-NC t °C) to adjust the effect of MSIs between H-NC support and Ru nanoparticles. The X-ray photoelectron spectroscopy results showed that the MSIs between Ru species and H-NC support increased with the increase of temperature, and more electrons were transferred from Ru species to H-NC support, thus regulating the valence state of Ru. In hydrogen evolution reaction (HER), the as-synthesized Ru/H-NC 300 °C merely requires overpotential of 35.45 mV to achieve 10 mA/cm 2 at low Ru mass loading of 24.03 µg/cm 2 on the glassy carbon electrode. The cyclic voltammetry test revealed that the electrochemically active surface area increased first and then decreased with the increasing MSIs. Moreover, electrochemical impedance spectroscopy results showed that HER kinetics of Ru/H-NC t °C catalysts increased first and then decreased with the MSIs enhancement. The density functional theory calculations confirmed that the MSIs effectively optimize the adsorption strength of the key intermediates (H*, HO*) on Ru clusters, and thus greatly improve the catalytic performance of Ru/H-NC in HER.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 7
·517
·
IF 3.2
Zhu Guosong,Li Xiaoyuan,Pan Wenqian,Zhou Wei,Luo Heng,Hu Yue,Fan Xiaomeng,Li Yang
As electromagnetic environments become more complex, the design of novel electromagnetic wave absorbers (EWMs) that combine low-frequency absorption with multi-frequency response remains a significant challenge. Experimental validation demonstrates that controlling the crystallinity and morphology of the ZnO coating layer through process temperature can significantly influence the electromagnetic properties of YCo composite materials. Nevertheless, the establishment and description of the intricate relationship between process temperature and electromagnetic response remains a formidable challenge. In order to address this issue, a data-driven modeling and inverse design framework (SSA-GRNN-PSO) integrating sparrow search algorithm (SSA), generalized regression neural network (GRNN), and particle swarm optimization (PSO) is proposed based on limited experimental data. This framework facilitates precise prediction of the complex electromagnetic parameters of ZnO@YCo composites at varying processing temperatures. When combined with a multilayer structural design concept, it achieves multi-band inverse design. The final composite material, with a thickness of 19.1 mm, exhibited strong multi-band absorption characteristics, with a bandwidth of 7.452 GHz, and a reflection loss of − 25.47 dB in the 2–18 GHz range. Moreover, an optimized design with a thickness of 5.4 mm was achieved, which features a bandwidth of 7.416 GHz and a reflection loss of − 15.72 dB.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 7
·495
·
IF 3.2
Xie Yaochen,Liu Guangli,Wu Shiqi,Xu Zicong,Ye Jianheng,Qian Yannan
The development of deep-blue emitting perovskite quantum dots (PeQDs) has been significantly hindered by the surface defects and halide migration. To overcome these problems, a synergistic strategy combining strong quantum confinement and mixed-halide engineering was proposed to achieve highly efficient deep-blue emission. An excellent multidentate ligand 1-carboxymethyl-3-methylim-idazolium chloride (HOOCMIMCl) was introduced into CsPbBr 3 QDs, resulting in ultra-small monodisperse particles with an average diameter of 4.2 nm. The ultra-small CsPbBr 3 QDs exhibited deep-blue emission at 457 nm with a high photoluminescence quantum yield (PLQY) of 77%. Based on density functional theory (DFT) calculations and experimental results, HOOCMIMCl ligand also passivated uncoordinated Pb 2+ by C = O and reduced bromine vacancies (V Br ) through C = N in imidazole ring, improving the PLQY and stability of CsPbBr₃ QDs. It opens a new pathway for realizing highly efficient deep-blue emitting PeQDs with a tunable emission wavelength and offers a research basis for advancing high-performance PeLEDs in the deep-blue region.
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高影响因子
COLLOID AND POLYMER SCIENCE
·
2026
·
IF 2.9
Wei Zeyu,Li Xinxin,Xu Zixiang,Fan Zhen,Li Yuzeng,Feng Zhenyu,Li Qinran,Zhang Hongfeng,Deng Qiliang
N-terminal epitope-imprinted temperature-sensitive polymer on silica particle was prepared using a reversible addition-fragmentation chain transfer (RAFT) strategy, with the N-terminal nonapeptide of cytochrome c as template. 2-Dodecylsulfanylcarbothioylsulfanyl-2-methylpropionic acid (DMP) was used as a chain transfer agent to regulate the polymerization of the imprinted layer, thereby enhancing the recognition performance for the peptide and target protein. After the epitope modification, a surface-imprinted polymer with a controlled imprinted layer was synthesized using monomers and crosslinkers via the RAFT radical polymerization method. As the classic temperature-sensitive functional monomer, the addition of N-isopropylacrylamide imparts temperature-responsive properties to the prepared imprinted polymer. After optimizing the ratio of functional monomers and the recognition temperature, the imprinted particles achieve optimal adsorption capacity and imprinting factor (IF) at a recognition temperature of 45 °C. The highest adsorption capacity for GI-9 is 1.50 mg/g, with an IF of 2.33, while the maximum adsorption capacity for Cyt c reaches 8.39 mg/g, with an IF of 2.16, which were clearly higher than the IF of the material without the RAFT strategy. Furthermore, the temperature-sensitive imprinted polymers exhibit acceptable binding capacity and IF for Cyt c, enabling selective recognition within multi-protein mixtures. The protein recognition performance remained at approximately 89.3% after five adsorption-desorption cycles, with almost no decrease of IF. All these results indicate that the imprinted particles exhibit acceptable selectivity, good reusability, and sensitivity to recognition temperature conditions. It is expected to be further applied in the selective recognition and controlled release of target proteins.
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CELLULOSE
·
2026
·
IF 4.6
Xin Yasen,Wang Miaomiao,Zou Ziwei,Wang Zongde,Song Fei,Huang Chen,Wu Ting,Zou Xiuxiu
Cellulose fiber (CF) is widely used as a flexible substrate in material science and bio-medical engineering. However, a majority of traditional research focuses solely on overcoming the bottleneck of CF in mechanical properties and improving resistance characteristics attributed to self-defects, ignoring the selection of non-toxic reinforcing agent and green, efficient and scalable production demands. In this work, a clean and scalable strategy, sizing process of waterborne emulsion was proposed for reinforcing CF paper. This innovative approach focused on controlling the insertion of 2D tung oil anhydride (TOA) layer based on the thermoset of TOA in the thermal reaction to form ester bond between cellulose and TOA due to the high chemical activity of TOA. Accordingly, the extensive ester bonds between CF and TOA enhanced cross-linking density and interfacial adhesion between CF, resulting in excellent tensile strength and toughness. Particularly, TOA/CF paper showed a tensile strength of 87.62 MPa, Young's modulus of 2.98 GPa and impact strength of 31.26 kg . f/mm 2 when the added content of TOA was 7 wt%. Moreover, the TOA/CF paper exhibited better hydrophobicity (water contact angle of 117° ± 3°) and thermal stability than pure CF paper. The developed TOA/CF paper featuring green and high yield fabrication has promising applications as a flexible substrate in various industries.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Diao Qun,Chang Lu,Zeng Yong,Chen Jimin
The additive manufacturing of complex Zn 2 SiO 4 –TiO 2 (ZST) microwave dielectric ceramics via vat photopolymerization (VPP) presents challenges in balancing densification with phase purity. This study systematically investigates how the initial SiO 2 precursor particle size (30 nm, 300 nm, and 5 μm) governs the entire process–property relationship. While the use of nano-sized SiO 2 particles promoted sintering activity and improved densification, it also led to the emergence of a secondary phase with high dielectric loss, which adversely affected the quality factor ( Q × f ). Conversely, larger (micron-sized) particles suppress this impurity, ensuring high phase purity at the cost of slightly lower density. By leveraging this understanding, the ZST ceramic derived from 5 μm SiO 2 (ZST3) achieved a favorable balance of properties, exhibiting a high quality factor ( Q × f ), a suitable dielectric constant ( ε r ), and excellent thermal stability with a near-zero τ f value. This study demonstrates that controlling the precursor particle size is an effective method for tailoring the microstructure and phase composition, thereby enhancing the performance of additively manufactured microwave dielectrics.
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IONICS
·
2026
·
IF 3.4
Xiang Yao
The development of efficient Metal-Nitrogen-Carbon (M-N-C) electrocatalysts is typically hindered by complex synthesis procedures and high-temperature treatments that often lead to active site aggregation. Herein, we report a facile, room-temperature plasma-driven strategy to engineer a high-performance Co 3 O 4 @GR-N composite, effectively circumventing these limitations. Unlike conventional thermal methods, this strategy utilizes a synergistic N 2 /H 2 plasma atmosphere to simultaneously achieve high-level N-doping of the graphene support and targeted enrichment of oxygen vacancies (O Vs ) in Co 3 O 4 . This dual-optimization creates a robust Co-N-C interface that electronically modulates the active sites while maximizing their exposure. Consequently, the optimized catalyst exhibits significantly enhanced Oxygen Evolution Reaction (OER) performance in alkaline media, delivering a current density of 10 mA cm − 2 at a low overpotential of 325 mV, significantly outperforming its thermally annealed counterparts. This work establishes the plasma strategy as a powerful, generalizable pathway for the precise defect engineering of advanced electrocatalysts without compromising structural integrity.
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MACROMOLECULAR RESEARCH
·
2026
·
IF 3.7
Jia Yuan,Yang Ziyi,Yang Juxiang,Li Beibei,Liu Zhen
Hyperbranched polysiloxanes (HBPSi) are novel non-conjugated polymers with aggregation-induced emission (AIE) and modifiable terminals, and have attracted attention due to their unique topology and functional potential. In this study, two AIE-active HBPSi derivatives (OA-HBPSi and IBO-HBPSi, where OA stands for oleic acid and IBO stands for isobutyric acid) containing C=C and acyloxy groups were successfully synthesized via transesterification. Gel Permeation Chromatography (GPC) was used to characterize their molecular weight distributions; Fourier Transform Infrared Spectroscopy (FTIR) and solid-state Photoluminescence (PL) were employed to elucidate their structure-property relationships. Ultraviolet-Visible (UV-Vis) spectroscopy and fluorescence spectrophotometry were applied to investigate their AIE behavior under solvent concentration gradients, with a focus on luminescence mechanisms. The results showed a non-monotonic relationship between fluorescence intensity and the molecular weight (M w ) of HBPSi derivatives: fluorescence intensity is enhanced with moderate M w elevation but reduced at excessively high M w due to molecular packing effects and acyloxy group rotation. Notably, as the volume fraction of CCl 4 reached the range that induces significant polymer aggregation, the intensities of both excitation peaks (266–294 nm, UV region) and emission peaks (440–460 nm, blue visible region) increased exponentially—this trend reflects the dependence of blue luminescence on polymer aggregation degree, supporting the proposed cluster-induced emission hypothesis. Consistent with FTIR spectral shifts and solvent-dependent PL behavior, we propose a mechanism hypothesis: the AIE of these derivatives originates from the synergy of “non-conjugated functional group clusters” in the polymers. Cluster-induced electronic delocalization and intramolecular charge transfer (ICT) between C=C and acyloxy groups may facilitate exciton radiative transitions, while the 3D hyperbranched spatial hindrance restricts excessive intermolecular aggregation—collectively suppressing non-radiative transition pathways. Graphical abstract
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高影响因子
CATALYSIS SURVEYS FROM ASIA
·
2026
·
IF 2.5
Khan Khyrullah,Wang Wei,Tian Hongkai,Chang Zhidong,Dong Bin,Ghebretatios Natnael,Rasheed Kiran,Otota Benard
The aggregation of TiO 2 precursors affects the structural evolution and catalytic performance of sulfated titania, highlighting a relationship between microscale and macroscale reactivity. In the present work, the sulfated titania (TiO 2 /SO 4 2− ) solid acid catalysts were synthesized through the impregnation approach using two different precursors, pre-aggregated TiO 2 (microscale) and molecular-scale Ti(OH) 4 . The catalysts were characterized using X-ray diffraction, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller analysis, and ammonia temperature-programmed desorption (NH 3 -TPD). Their catalytic activity was tested in the transesterification reaction of ethyl acetate with n-butanol. The TiO 2 /SO 4 2− derived from Ti(OH) 4 precursor exhibited a single-phase anatase structure with (92%) higher specific surface area (63.85 m 2 g − 1 vs. 33.38 m 2 g − 1 ), smaller crystallite size (8.05 nm), and higher catalytic conversion (70%) as compared to the catalyst prepared from pre-aggregated TiO 2 . These differences are attributed to variations in precursor aggregation, which influence crystallite growth, sulfate dispersion, and surface area acidity, thereby enhancing catalytic performance during transesterification. The present work establishes a link between TiO 2 precursor aggregation and the catalytic activity of TiO 2 /SO 4 2− . The results demonstrate that the aggregation state of the TiO 2 precursor inherently governs the physicochemical characteristics and catalytic behavior of sulfated titania, providing a rational basis for tailoring solid acid catalysts for esterification and transesterification reactions.
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危险品化学品经营许可证（带存储）