Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Mengyuan Qiu,Yongzhi Xiong,Wei Zhao,Dong Ouyang,Zongxuan Wu,Tangtianxiang Liang,Changzhou Chen,Shengchun Hu,Hao Sun
Designing low-cost, high-performance electrocatalysts for the electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to produce 2,5-furandicarboxylic acid (FDCA) remains a significant challenge. Herein, we report a novel post-pyrolysis phosphidation method for preparing Nb- and Fe-doped CoP-based catalysts. Nb-CoP@NC delivers a current density of 91.79 mA cm⁻² at a potential of only 1.50 V vs. RHE, achieving nearly 100 % HMF conversion, 98.3 % FDCA selectivity, and 95.6 % Faradaic efficiency (FE). Structural and surface analyses via XRD and XPS reveal that Nb doping significantly modulates the electronic structure of CoP, generating Nb 5+δ active species, which show superior catalytic activity for HMFOR compared to Fe 3+δ . This work not only highlights the pivotal role of Nb doping in enhancing catalytic performance but also provides a general and facile strategy for constructing efficient bimetallic CoP-based catalysts for biomass-derived HMF oxidation.
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Haiqing Liu,Muhammad Jawad,Jingmao Zhao,Baomin Fan,Mohammad Tabish,Muhammad Mubeen,Mubashar Mahmood,Jingbao Wang
Under-film filiform corrosion (FFC) poses a significant challenge to the durability and reliability of Zn–Al–Mg-coated steel (ZM-steel), necessitating the development of advanced protective strategies. Herein, benzotriazole 5-carboxylic acid (BTC)-modified titanium zirconium (TiZr) conversion coatings (CCs) were developed as a sustainable solution to mitigate FFC, enhance corrosion resistance, and improve the adhesion of epoxy (EP) coatings on ZM-steel. Through electrochemical impedance spectroscopy, potentiodynamic polarization, FFC, and neutral salt spray (NSS) tests, the optimized BTC-TiZr CC, prepared in a Ti–Zr solution containing 0.5 g/L BTC, a treatment temperature of 25 °C, and a short immersion duration of 120 s, exhibited superior corrosion resistance, robust adhesion strength, and exceptional FFC inhibition. Metal–organic complexes (MOCs) of Ti/Zr/Zn with BTC were identified alongside mixed Ti/Zr/Zn/Al/Mg oxides and fluorides within the BTC-TiZr CC. BTC not only exerted strong corrosion inhibition efficacy for ZM-steel but also facilitated the formation of MOCs with metal ions in TiZr conversion solutions (CSs). Density functional theory calculations revealed that BTC preferentially adsorbs onto the MgZn2 phase, effectively suppressing its dissolution within the ZM layer. These findings establish BTC-TiZr CCs as a promising, environmentally friendly solution for advanced corrosion protection of ZM-steel, especially FFC suppression.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Catalysis Science & Technology
·
2025
·
IF 4.2
Fan Bai,Yanjiao Gao,Yongbo Xiao,Jing Xiao
The utilization of sodium percarbonate (SPC, Na₂CO₃·1.5H₂O₂) as an alternative to H₂O₂ for degrading recalcitrant organics in advanced oxidation is emerging due to SPC’s stability, safety, and pH adaptability. This study innovatively employed Cu(II)-activated SPC to remove reactive black 5 (RB5), focusing on Box-Behnken design (BBD), mechanism profiling, application performance, and energy boosting. BBD and response surface methodology optimized conditions (2.592 mM Cu(II), 0.022 mM SPC, pH 7.18) achieved 90.08% RB5 removal (R² = 0.9997, prediction error < 1%), with the model showing strong predictive capability. Quenching experiments and liquid chromatography-mass spectrometry (LC-MS) revealed that 1O2, O2•−, and CO3•− were the main active species in oxidizing RB5 through three possible pathways. Cl⁻, SO₄²⁻, NO₃⁻, and HCO₃⁻ (0.1-5.0 mM) contained in the ultrapure water did not inhibit RB5 removal in the Cu(II)/SPC system, and the Cu(II)/SPC could remove 76.1% of RB5 in industrial wastewater, demonstrating the potential for practical application of this system. The application of energy (heating, ultraviolet light, ultrasound) significantly improved the effectiveness of the Cu(II)/SPC system in degrading RB5; thus, these means can be used to assist in the activation of SPC in real dye wastewater treatment. This work provides theoretical and practical insights for SPC-based advanced oxidation processes.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Lei Wu,Kun Zhang,Qiuyan Ye,Yingjie Lv,Jiaqiao Li,Xiaoyan Guo,Yongnan Chen,Yiming Chen
Titanium alloys exhibit excellent mechanical properties, good corrosion resistance and biocompatibility, making they widely used in medical field. Nevertheless, their practical application is frequently constrained by bacterial infection and corrosion issues in physiological environments. To overcome these challenges, this study proposes a novel multifunctional strategy involving the incorporation of Ag + -loaded ZSM-5 zeolites into a micro-arc oxidated (MAO) coating on the surface of titanium alloy to fabricate Ag/ZSM-5@MAO-Ti composite coating. The microstructure, mechanical properties, and functional characteristics of the coating were systematically characterized. Analysis confirmed that Ag/ZSM-5 were evenly dispersed within the MAO coating while preserving the crystal structure intact. By leveraging the mechanical interlocking effect, the particles were securely retained within the micropores of the MAO layer after in-situ hydrothermal secondary growth. The composite coating exhibited exceptional adhesion to the titanium alloy substrate, with an average bond strength of 64 N. Owing to the inherent hydrophilicity of zeolites, the composite coating demonstrated significantly enhanced hydrophilicity with a contact angle of 12.9±0.7°. Antimicrobial tests results revealed that the coating achieved an inhibition rate of more than 99.99% against Escherichia coli (E. coli), and the sustained release of Ag⁺ ensures long-term antimicrobial efficacy. Furthermore, the composite coating displayed superior corrosion resistance in phosphate buffer solution (PBS). In summary, the Ag/ZSM-5 modified MAO coating substantially enhances the antimicrobial properties and corrosion resistance of titanium alloy, offering a promising strategy for the development of advanced medical devices.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
·
2025
·
IF 6.2
Yingna Li,Muhammad Sajjad Ahmad,Pei Gao,Yu Zhang,Mingtao Yang,Xiaolan Zhao,Boxiong Shen
This study examined the catalytic pyrolysis of melon seed shell (MSS) using vanadium tungsten modified ZSM-5 (V/W-ZSM-5) through combined experimental and theoretical methods. Thermogravimetric analysis (TGA) with model-free kinetics revealed that the catalyst lowered the activation energy by about 10 % (184–194 kJ mol⁻¹) compared with non-catalytic pyrolysis. Thermodynamic assessment showed reduced entropy (ΔS) values for conversion fractions below 0.7, indicating a more ordered and energy-efficient pathway. Product distribution from Py-GC/MS confirmed enhanced selectivity, with levoglucosan and furfural yields increasing nearly 5-folds and 3-folds, respectively. Density functional theory (DFT) clarified the mechanistic pathways: levoglucosan formed primarily via glucose dehydration, while furfural production followed xylose ring-opening and nucleophilic conversion. Collectively, these findings demonstrate that V/W-ZSM-5 not only improves selectivity toward high-value products but also reduces both kinetic and thermodynamic barriers, highlighting its potential for sustainable biomass valorization.
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Xiaonan Qiu,Jiaying Liu,Li Song,Huijun Yu,Yunchao Wu,Qinxin Wang,Mengke Lu,Xuan Gu,Baoding Chen,Miaomiao Zhang,Fengyi Du
Bioorthogonal chemistry-based cancer therapy greatly reduces the side effects of chemotherapy drugs; however, complicated and expensive procedures limit its clinical application. Disulfiram (DSF), an FDA-approved anti-alcoholic drug, can combine with copper to form a DSF‑copper complex with remarkable tumor-killing effects. Inspired by the bioorthogonal chemistry, we fabricated an in situ crosslinked self-adaptive hyaluronic acid hydrogels (Cu-A/P@PH HGs) via a dynamic boronic ester bond-based reaction between Cu/5-aminolevulinic acid (5-ALA) self-assembled nanoparticles containing PVA (Cu-A/P NPs) and phenylboronic-grafted hyaluronic acid (PH). The prepared Cu-A/P@PH HGs exhibited favorable self-healing performance and ROS-responsive degradation. Upon in situ injection, the Cu-A/P NPs endowed the Cu-A/P@PH HGs with the ability to convert non-toxic DSF into cytotoxic diethyldithiocarbamate (CuET) at the desired tumor site. In addition, under the induction of glutathione (GSH), Cu-A/P NPs gradually released 5-ALA, which was specifically converted into protoporphyrin IX (PpIX) (a photosensitizer) in tumor cells, resulting in irreversible ROS-mediated oxidative damage under 660 nm laser exposure. Our study offers a promising bioorthogonal chemistry-inspired strategy for in situ photodynamic therapy and DSF chemotherapy to treat breast cancer.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Zhaoying Li,Langqi Shi,Daokuan Liang,Feixing Li,Lianghuan Wei,Weizun Li,Xianghao Zha
The quality of bio-oil produced from fast pyrolysis of lignocellulosic biomass needs urgent upgrading due to its undesirable characteristics. In this study, HZSM-5 modified with different alkali solutions is used to catalytic fast co-pyrolysis of cotton stalk and polypropylene, investigating pyrolysis temperatures, catalysts modified with different alkali solutions, the cotton stalk (CS) to polypropylene (PP) ratio, and the feedstock to catalyst ratio. Thermogravimetric experiments revealed that PP undergoes rapid decomposition between 408 °C and 465 °C, during which a substantial amount of hydrogen free radicals is released. These radicals subsequently react with oxygen-containing compounds emitted by carbonaceous substances CS, thereby facilitating weight loss and minimizing coke formation. The FTIR results also indicate that the presence of PP significantly increases the transmittance of O-H groups at 3600–3000 cm −1 and C-O groups at 1290–900 cm −1 compared to CS. The TPAOH-modified HZSM-5 possesses a mesoporous structure and porous channels, facilitating the completion of deoxygenation of pyrolysis vapors at the acid sites. CFP of CS over HZSM-5 modified TPAOH (1.5 mol/L) at 600 °C is carried out, resulting in the highest hydrocarbon content in the bio-oil reaching 63.3 %. Concurrently, the BTEX concentrations attain their maximum values of 6.5 %, 12.9 %, 3.4 %, and 12.6 %. In addition to the hydrocarbon pool mechanism, the Diels-Alder reaction between furan and olefin is a crucial synergistic effect for generating aromatics. Upon the addition of PP in a 1:1 ratio, the contents of BTEXs attain maximum values of 8.1 %, 15.5 %, 2.3 %, and 15.5 %. Response surface methodology (RSM) indicates that the organic alkali concentration used for catalyst modification is the most significant factor influencing aromatics generation. Overall, this study aims to improve bio-oil quality and detail the reaction mechanism.
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Beiling Liang,Yongxin Liang,Jiashuo Chen,Ying Zhu,Fuzheng Fu,Tao Gan,Zuqiang Huang,Huayu Hu,Yanjuan Zhang
To achieve the goal of “no waste” in circular bioeconomy on the basis of waste-to-energy conversion, the development of efficient technology for sustainable treatment and utilization of lignocellulosic biomass is significant yet challenging. In this study, a stepwise processing strategy based on enzymatic hydrolysis and catalytic conversion was proposed for comprehensive utilization of sugarcane bagasse (SCB) to produce value-added products. Mechanical activation (MA) pretreatment was adopted to disrupt the recalcitrant structure of SCB for improving enzymatic hydrolysis of polysaccharides to produce reducing sugars, obtaining a high yield (392 mg/g SCB) of target sugars (TS; i.e., cellobiose and glucose). The enzymolysis residue and Al(NO 3 ) 3 ·9 H 2 O were treated by MA and then calcinated to construct the biochar (BC)-based catalyst (denoted as MA-Al/BC) with Brønsted–Lewis dual-acidic sites, which effectively catalyzed the conversion of TS to produce 5-hydroxymethylfurfural (5-HMF). A TS conversion of 94.5% and a 5-HMF yield of 77.6% were achieved at 190 °C for 4 h in the biphasic system. MA-Al/BC exhibited excellent universality for efficient catalytic conversion of various carbohydrates. This study offers a promising approach for value-added exploitation of agricultural wastes within circular bioeconomy principles.
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
·
IF 20.2
Yimin Zhang,Yun Zu,Ke Yan,Yuan Zhu,Yibin Luo,Enhui Xing,Qiang Li,Lijuan Song,Tan Li,Yi Mei,Xingtian Shu
In this work, a "bottom-up" strategy was proposed to one-step, in-situ synthesize P@ZSM-5 zeolites in a sodium-free system by elaborately self-designed tetrapropylphosphonium hydroxide as a new member of MFI-type zeolite organic templates inventory, and the interaction of phosphorus species with framework aluminum was investigated in detail. Multiple advanced characterizations confirm that the tetrahedrally-coordinated bidentate P IV -O 2 -Al IV structures are precisely customized and uniformly scattered in the zeolite channels. After experiencing harsh hydrothermal treatment (100 %H 2 O, 800 °C, 17 h), this new structure endows excellent hydrothermal stability of zeolite (crystallinity retention beyond 95 %) and reinforces its Brønsted acidity. Furthermore, methanol-to-propylene tests show that directly synthetic P@ZSM-5 zeolite performs extraordinarily long lifetime (180 h, WHSV = 1 h −1 ), enviable propylene selectivity (60.4 %) and propylene/ethylene ratio ( ca. 4.3) compared to the counterparts, which is benefited from encouragingly olefinic cycle pathway. These findings afford value-filled opportunities in novel catalyst production mode and understandings for phosphorus-zeolite chemistry . Synopsis -A "bottom-up" strategy was demonstrated to one-step, in-situ synthesize P@ZSM-5 zeolite in a sodium-free system by elaborately self-designed tetrapropylphosphonium hydroxide. The resultant P@ZSM-5 catalyst with hyperuniformly-stable bidentate P IV -O 2 -Al IV structures exhibited extraordinarily long lifetime (180 h) and enviable propylene selectivity (60.4 %).
✓ 已验证
DOI
高影响因子
Green Energy & Environment
·
2025
·
IF 14.6
Peiya Chen,Xinghao Li,Yuhan Liu,Huai Liu,Rui Zhang,Wenlong Jia,Junhua Zhang,Yong Sun,Lincai Peng
Concurrent activation of lattice oxygen (O L ) and molecular oxygen (O 2 ) is crucial for the efficient catalytic oxidation of biomass-derived molecules over metal oxides. Herein, we report that the introduction of ultralow-loading of Ru single atoms (0.42 wt%) into Mn 2 O 3 matrix (0.4%Ru-Mn 2 O 3 ) greatly boosts its catalytic activity for the aerobic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA). The FDCA productivity over the 0.4%Ru-Mn 2 O 3 (5.4 mmol FDCA ‧g cat -1 ‧h -1 ) is 4.9 times higher than the Mn 2 O 3 . Especially, this FDCA productivity is also significantly higher than that of existing Ru and Mn-based catalysts. Experimental and theoretical investigations discovered that the Ru single atom facilitated the formation of oxygen vacancy (O v ) in the catalyst, which synergistically weakened the Mn-O bond and promoted the activation of O L . The co-presence of Ru single atoms and O v also promote the adsorption and activation of both O 2 and HMF. Consequently, the dehydrogenation reaction energy barrier of the rate-determining step was reduced via both the O L and chemisorbed O 2 dehydrogenation pathways, thus boosting the catalytic oxidation reactions.
✓ 已验证
产品关联
DOI
高影响因子
SOLID STATE SCIENCES
·
2025
·
IF 3.3
Yanlin Wang,Hao Liu,Haoyu Liu,Hong Yuan
A series of nanosized ZSM-5 (SNZSM-5) zeolites has been synthesized by the seed-assisted method using silicalite-1 as seeds. Catalytic cracking of oleic acid to produce light olefins and light aromatics using SNZSM-5 as the catalyst was performed using a laboratory-scale fixed-bed reactor. The effects of the crystallization time and Si/Al molar ratio on the morphology and multilamellar structure of SNZSM-5 were studied to reveal how these properties affect the catalytic performance. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, temperature-programmed desorption of ammonia, and N 2 physisorption and desorption were performed to characterize the morphological features, acidities, and pore structures of the SNZSM-5 nanozeolites. Compared with conventional ZSM-5 zeolite, the SNZSM-5 nanozeolites possessed smaller particle diameters (90–450 nm), and they thus contained more intercrystalline voids. The Brunauer–Emmett–Teller surface areas (211–309 m 2 g −1 ) and mesopore volumes (0.08–0.27 cm 3 g −1 ) were both higher than those of ZSM-5 zeolite. Moreover, owing to the larger specific surface areas of the nanocrystals, more acidic sites can be exposed. Therefore, the SNZSM-5 nanozeolites showed higher catalytic activity and stability than conventional ZSM-5. The catalytic activity could be sustained for up to 35 h. Under the conditions of a reaction temperature of 500 °C, an oleic acid flow rate of 0.04 mL min −1 , and a nitrogen flow rate of 30 mL min −1 , the SNZSM-5 nanozeolite prepared with a Si/Al molar ratio of 16 showed the highest catalytic activity, producing up to 67 % yield of light olefins and showing 14.5 % selectivity for light aromatics.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yan Chen,Ming-Kun Yang,Suo-Luan Zhou,Cheng-Nuo Hu,Yun-Han Yang,Zhen Zhang,Li-Juan Yang
A novel quaternized pillar[5]arene polymer (P5-P5M-Cl) was synthesized by quaternization reaction, and characterized via XPS, FT-IR, NMR, XRD, TGA, BET, and SEM. P5-P5M-Cl can be used for the efficient removal of iodine, toxic anionic dyes, and microbial pollutants. The results demonstrated that the maximum adsorption capacity of P5-P5M-Cl for iodine in the gas phase as well as for iodine, methyl orange, and fluorescein sodium in the aqueous phase were 1.92 g/g, 3.63 g/g, 181.8 mg/g, and 86.7 mg/g, respectively. Recyclability experiments have demonstrated the good reusability of P5-P5M-Cl. Meanwhile, the adsorption mechanism was explained by molecular simulation, and the results showed that electrostatic, host-guest, hydrogen bonding, mesoporous, and π-π interactions play crucial roles in the adsorption process. In addition, the presence of abundant quaternary ammonium cationic groups enables effective removing Staphylococcus aureus and Escherichia coli , achieving removal rates of 99.5 % and 80.0 %, respectively. These results demonstrate that P5-P5M-Cl is a multifunctional adsorbent capable of effectively removing radioactive iodine, organic dyes, and microbial pollutants.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）