Catalysts
·
2025
·Vol. 15
·期 3
·250
·
IF 4
Jingjing Wang,Peixiang Shi,Jiahao Han,Yuhao Tian,Zhiqiang Yan,Pengcheng Luo,Hongyan Ban,Yanchun Li,Weijie Cai,Guanjing Lin,Zhiqiang Zhai,Congming Li
The hydrogenation of CO2to methanol over Cu-based catalysts is one of the attractive routes to reduce greenhouse gas emissions and generate high-value-added chemicals. Industrial CuZnAl catalysts possess some shortcomings, but various promoters can enhance the activity and durability of Cu-based catalysts for CO2hydrogenation. Herein, we systematically investigated the variations in the physicochemical properties of ternary CuZnM (M: Cr, Ce, Zr, Al) catalysts induced by different promoters, as well as their impact on CO2hydrogenation to methanol. The results demonstrate that the catalytic activity followed the order of CZCr > CZCe > CZZr > CZAl, with CZCr exhibiting the highest stability among them. Combined with XRD, SEM, TEM, H2-TPR, TPD, XPS, Raman findings and the experimental results, the smaller Cu particle size was conducive to increasing the CH3OH yield, and the lower Cu+/Cu0ratio exhibited better stability in CO2hydrogenation to methanol reaction. This approach offers theoretical insights and practical solutions for the industrial application of ternary Cu-based catalysts.
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高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Bo Liu,Liangliang Xiong,Xiaoqiang Fan
In this work, two-dimensional UiO-67 nanosheets are successfully modified on graphene oxide (GO). The synthesized GO@2D-UiO-67 composite not only exhibits the electrical insulation characteristics of Zr-MOF, but also leverages the passive barrier effect of its 2D layered structure to prepare a highly anticorrosive epoxy coating. Electrochemical measurements reveal that the impedance modulus of the GO@UiO-67/EP composite coating remain two orders of magnitude higher than that of the pure EP coating even after 28 days of immersion in 3.5 wt% NaCl solution. This good long-term anti-corrosion performance could derive from the enhanced crosslinking density of composite coating due to the incorporation of GO@UiO-67 nanosheets. Furthermore, the shielding effect of layered structure and the corrosion inhibition behavior of organic ligands are proved to improve the corrosion resistance properties of composite coating. This research fills the application void of two-dimensional Zr-MOF composites in resin coatings, as well as serves as a forward-looking initiative to enhance the long-term corrosion protection of epoxy resin coatings.
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TALANTA
·
2024
·
IF 5.6
Yusha Huang,Chengli Xie,Longcheng Gong,Min Wang,Lianzhe Hu,Zhining Xia
Zr 4+ -doped polydopamine (Zr@PDA) nanozyme with phosphatase-like activity was synthesized by a one-pot hydrothermal method for the first time. Compared with previous representative phosphatase-mimicking nanozymes (i.e., CeO 2 NPs, ZrO 2 NPs and UiO-66), Zr@PDA not only exhibited higher dispersion stability in water, but also higher catalytical efficiency. K cat / K m of Zr@PDA is 35 and 12 times that of UiO-66 and ZrO 2 NPs, respectively, which would endow the Zr@PDA-based analytical methods with high sensitivity. As a demonstration, a novel colorimetric method based on Zr@PDA nanozyme was developed for sensitive detection of the drug fructose 1,6-diphosphate. The linear range is 1–15 μM with a detection limit as low as 0.38 μM.
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PubMed
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CATALYSIS LETTERS
·
2025
·Vol. 155
·期 2
·1-18
·
IF 2.4
Xu Lingling,Pan Xiaomei,Gao Lijing,Wei Ruiping,Li Jihang,Wen Xiu,Li Yuanzhuang,Xiao Guomin
UiO–66–NH 2 (Ti/Zr) modified by Ti metal oxide (TiO 2 ) was used to catalyze the hydrolysis of cellulose to prepare 5-HMF. Under the optimal reaction conditions of H 2 O(NaCl)/THF(1/4 mL), 190 °C, 2 h and 50 mg UNT-3(Ti/Zr) (TiO 2 and UiO–66–NH 2 with mass of 1.5 and 0.1 g, respectively), the yield of 5-hydroxymethylfurfural reached 59.88%. UiO–66–NH 2 (Ti/Zr) nanocomposites with different mass ratios were successfully prepared by simple solvent evaporation method. SEM and TEM have shown that the modified UiO–66–NH 2 (Ti/Zr) are wrapped into sphere by TiO 2 densely attached to the surface of UiO–66–NH 2 , which provides favorable conditions for the uniform dispersion of TiO 2 and coordination of the Lewis acidic site of UiO–66–NH 2 . NH 3 –TPD results confirmed the existence of super-strong, strong, middle and weak acid sites in UiO–66–NH 2 (Ti/Zr), and Py-FTIR confirmed the existence of Brønsted and Lewis acids. After four cycles, the yield of 5-HMF and FUR decreased slightly from 59.88 to 51.89% and 9.11 to 7.66%, respectively, and the yield of 5-HMF could still remain above 50%. The results showed that the modified composite treatment of TiO 2 with rich Lewis acid/base and UiO–66–NH 2 could provide a certain idea for the extensive application of biomass research in the future. Graphic
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JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2025
·
IF 3.8
Tao Luo,Jinsheng Ye,Wenyan Huang,Ke Li,Yufan Wu,Yeqi Zhu,Siqi Lan,Shengjian Mao,Zhichao Xue,Rongqian Yao
Aimed at making SiC-based composites for thermal protection components to catch up with the increasing Mach number of hypersonic vehicles, a facile strategy is proposed to fabricate lightweight SiC(Zr, rGO) nanocomposite polymer-derived ceramics (PDCs). The key technique is repyrolyzing SiC(Zr, rGO) p /polyzirconocarbosilane–vinyltriethoxysilane–graphene oxide (PZCS–VTES–GO, PZVG) blends. Highly cross-linked PZVG can effectively optimize formability of precursors, and in-situ formed Zr-containing phases are beneficial in preventing further grain growth of β-SiC and improving bonding strength within ceramic network. More interestingly, ZrOSi transition zone tightly coupled with nanocrystals helps to increase structure disorder of amorphous ceramic matrix to tough nanocomposite structure. Particularly, SiC(Zr, rGO) 1300 nanocomposite PDCs own outstanding hardness (8.10 GPa), superior fracture toughness (3.84 MPa·m 1/2 ), high ceramic yield (92.60%), and low linear shrinkage (5.00%). Zr-modification enables them to retain favorable overall performances even after 60 min of oxidation under a 1300°C butane torch flame. Timely self-healing ZrO 2 (ZrSiO 4 )/SiO 2 protective layer can enhance high-temperature oxidation resistance. Meanwhile, ZrO 2 and ZrC have a unique combination of good high-temperature stability/resistance to corrosion, strongly improving structural integrality. As demonstrated, such in-situ construction of nanocomposite system and pyrolytic mechanism open new opportunities for obtaining PDCs with superior high-temperature ablation resistance, toward emerging uses in thermal protection system of hypersonic aerospace vehicles.
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BIORESOURCE TECHNOLOGY
·
2025
·
IF 9
Jiao Long,Yan Gao,Kangjia Sheng,Junjie Yao,Xinglong Zheng,Tao Bao,Wanghui Jing,Sicen Wang
The research on the reuse of resources is crucial for achieving high-value utilization of traditional Chinese medicine (TCM). In this study, licorice residues were selected to extract fibers by alkaline hydrogen peroxide oxidation because of their high cellulose content and widespread use. The cellulose, hemicellulose and lignin content of obtained fibers were found to be 55 %, 8.2 % and 18.8 %, respectively. Immobilizing MOF-808 onto licorice residue fibers yields a composite material exhibiting enhanced adsorption capabilities. The synthesized material was employed to adsorb ketoprofen, naproxen and diclofenac sodium. The characterization results confirmed the successful modification. Adsorption performance experiments indicate that the adsorption behavior follows pseudo-second-order kinetic models and Langmuir isotherm. The adsorption is a process of rapid adsorption and slow equilibrium, showing satisfactory adsorption capacity. X-ray photoelectron spectroscopy and density functional theory calculation revealed that the sustained adsorption attributed to the synergy of π-π stacking, hydrogen bonding and coordination interaction. This study emphasizes the potential for reusing licorice residues and paves the way for the treatment of TCM residue after extracting active ingredients.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Jinguo Hao,Senlin Deng,Junyang Liu,Lei Wang,Shasha Cao,Junping Zhang,Gang Wang,Chunshan Li
Modification of supported Cs-based catalysts has stimulated researchers’ interests, considering their effective catalytic performance in methyl methacrylate (MMA) production via one-step aldol condensation. Herein, we developed a series of Zr-incorporated SiO2-supported Cs (Cs/Zr-SiO2) catalysts using sol–gel in combination with solvothermal and impregnation methods. The structure and physicochemical properties were analyzed systematically by employing multiple characterization techniques, which guided the optimization of synthesis parameters such as Si/Zr molar ratio, prehydrolysis time, and Cs loading. The effects of catalyst structure, acid–base properties and their balance, and the chemical state of Cs and Zr species on the catalytic performance were systematically correlated. Results indicate that Zr was incorporated into the SiO2 framework with a four-coordinated configuration to form Si–O–Zr structures to act as Lewis acid sites, while the Cs component provides base sites through the formation of Cs–O–Si configurations. As a result, the methyl propionate (MP) conversion could reach up to 34.9% with MMA selectivity of 88.4%, representing 10–12% enhancement over the traditional impregnation method. In situ IR spectroscopic insights elucidated that the activation of formaldehyde and MP proceeded severally on the Si–O–Zr and Cs–O–Si sites, which seemed to be more efficient than those on an impregnation-prepared sample. Kinetic studies determined the activation energy of 115 kJ/mol, with reaction orders of 1.04 and 1.14 for MP and FA, respectively. In addition, the catalyst exhibited excellent regeneration and recycling behavior during the long-term stability test, and the initial activity of sample deactivated due to carbon deposition could be easily recovered after thermal treatment.
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ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Feng Zhang,Sen Zhang,Xing Liu,Wei Gao,Jun Luo,Yi-fan Pan,Wei-Juan Zheng,Xin Hu,Hong-zhen Lian
Background Glycoproteins are critical in various biological processes and attract lots of attention of researchers. It still remains a challenge to detect glycopeptides by mass spectrometry because of their low abundance with heterogeneity and lability, as well as signal suppression by non-glycopeptides. The boronate affinity-based enrichment is an effective solution for detecting cis -diols-containing compounds including glycopeptides in complex matrices. However, there has not been any report about absolute quantitation of boron in the absorbent materials for glycopeptides, which obstructed the tailored design of boronate affinity materials and deeper understanding of interaction mechanisms. Results This work presents the development of a boronic acid-functionalized magnetic zirconium metal-organic framework (mMOF–AAPBA) with actual boron content for specific capture of glycopeptides. The synthesized nanocomposite could enrich glycopeptides by magnetic solid-phase extraction (MSPE) via the synergistic effect of hydrophilic interaction and boronate affinity. After full characterization including quantitative analysis of boron by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), mMOF–AAPBA was applied as MSPE absorbent to capture glycopeptides. Under the optimized conditions, it could enrich 28 glycopeptides both from horseradish peroxidase and immunoglobulin digests, with a limit of detection of 1 fmol μL −1 coupled with matrix-assisted laser desorption/ionization time of flight mass spectrometry. The boronate affinity absorbent also possessed great ability of anti-interference and good reusability. Furthermore, it possessed high performance in enriching glycopeptides in real samples including human saliva and traditional Chinese medicine injections. Significance In the preparation of the boron-containing nanocomposites, there is a special interest that an accurate protocol was established to assay boron based on LA-ICP-MS assisted by home-made matrix reference substances for the first time. These findings highlight the quantitative boron-containing mMOF–AAPBA as a robust affinity material for glycopeptide enrichment in real biological samples, offering potential applications in glycoproteomics and other cis -diols compound related researches.
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PubMed
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JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2025
·
IF 4.6
Jianmei Li,Qi Sun,Haiyu Li,Zongyao Zhao,Ting Gong,Mengqin Xiang,Feng Gao,Yong Tang
Traditional DNA purification methods face limitations in efficiency and complexity, particularly for food authenticity verification. To address this, we developed novel magnetic nanocomposites by integrating polydopamine-coated Fe 3 O 4 nanoparticles (Fe 3 O 4 @PDA) with zirconium-based metal-organic frameworks (Zr-MOFs) functionalized via varying organic ligands (terephthalic acid, 2-aminoterephthalic acid, and 1,2,4-benzenetricarboxylic acid). The resulting materials—MUIO-66, MUIO-66-NH₂, and MUIO-66-COOH—were characterized for structure, magnetism, and DNA adsorption performance. MUIO-66-COOH exhibited superior efficiency, achieving >80 % DNA recovery from camel meat under optimized conditions (25 °C, 10 min), outperforming commercial kits. Adsorption kinetics and isotherms revealed a multilayer process (Freundlich model) governed by pseudo-second-order kinetics, driven by "salt-bridge" interactions between DNA phosphate groups and surface carboxyl moieties. The method demonstrated high precision (RSD = 2.75 %), reproducibility, and reusability (>81 % efficiency after 5 cycles). This work establishes a rapid, ligand-tunable magnetic solid-phase extraction (MSPE) platform for high-quality DNA extraction, advancing biosensing applications in food authenticity.
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Molecular Catalysis
·
2024
·
IF 3.9
Xiangsheng Zheng,Xiaohong Hao,Yan Wang,Siyu Gao,Dantong Wen,Jinchuan Wang
The development of novel biocatalysts is essential to promote the commercialization of biodiesel production by transesterification reaction. In this paper, Rhizopus oryzae lipase (ROL) was immobilized on an amino-functionalized zirconium-based metal organoskeleton by interfacial adsorption. The immobilization conditions were optimized and the enzymatic properties were tested, and the resulting novel biocatalysts exhibited higher stability and heat resistance. SEM, XRD and BET analyses were used to characterize the biocatalysts and carrier materials. The catalytic performance of ROL@UiO-66-NH 2 in the production of biodiesel by transesterification reaction was explored, and the production process was optimized by response surface method. The results showed that the conversion rate of FAEE reached 82.05% at molar ratio of ethanol/oil of 15.43:1, reaction temperature of 50.28°C, reaction time of 120.9 min, DES addition of 48.08 wt%, biocatalyst addition of 3 wt%, and ultrasonic power of 90 W. In addition, ROL@UiO-66-NH 2 demonstrated good recyclability, with the catalytic efficiency remaining at 71.87% after five cycles.
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MATERIALS RESEARCH BULLETIN
·
2024
·
IF 5.3
Fengyan Xie,Chunlei Huang,Guofa Dong,Minghui Wu,Kechen Wu,Shaowu Du,Yafeng Li,Mingdeng Wei
Perovskite solar cells (PSCs) fabricated of TiO 2 electron transporting material (ETM) have aroused tremendous attention, but their power conversion efficiency (PCE) needs further improvements. In this study, for the first time, zirconium (Zr)-doped brookite TiO 2 nanorods (ZTO) are synthesized by a facile route and subsequently employed as an ETM in PSCs which finally achieves a considerable PCE of 19.42 % by optimizing all operating conditions. Further characterizations have been undertaken to explore in detail the effects of Zr doping on the nature of the perovskite active layer and the photovoltaic performance. As a consequence, the enhanced PCE can be ascribed to the high quality perovskite crystals and a more favorable energy level alignment between the perovskite layer and ZTO mesoporous layer.
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CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Cheng Su,Bingzhu Wang,Huan Guo,Jixiang Dai,Jianjun Sha
In view of the high sintering temperature and difficulty in densification of the ultra-high temperature ceramics(UHTCs), a novel reactive hot-pressing process was designed to achieve the low temperature densification of high strength (Zr,Ta)B 2 -SiC ceramics. It was found that the mechanical properties were closely associated with the microstructure, being dependent on the sintering temperature. The microstructure characterization revealed that the main phases of ceramic were incompletely solid soluted borides and SiC at the sintering temperature of 1600 °C; while at 1700 °C, the boride ceramics were completely solid soluted (Zr,Ta)B 2 and formed an interlocking structure with SiC. The evaluation of mechanical properties indicated that the flexural strength of the ceramics increased from 470.2 MPa to 736.7 MPa when the sintering temperature increased from 1600 °C to 1800 °C. Correspondingly, the fracture toughness increased from 3.54 MPa·m 1/2 to 4.10 MPa·m 1/2 . The improvement of mechanical properties were mainly attributed to the interlocking structure formed by the solid solution (Zr,Ta)B 2 and SiC, which caused the crack propagation path becoming tortuous along the interface of different phases.
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