FUEL
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2024
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IF 6.7
Peixin Wang,Ruilong Zhang,Ifunanya Rejoice Akaniro,Mian Laiq Ur Rehman,Reeti Kumar,Zhong-Ting Hu,Jun Zhao
Catalytic oxidation of 5-Hydroxymethylfurfural (HMF) feedstock to value-added chemical 2,5-diformylfuran (DFF) is of great importance in biomass valorization. However, it is still challenging to develop non-noble metal-based catalysts for high selectivity of DFF due to the coexistence of other undesired derivatives. In this study, Mn x Mg 1-x SnO 3 was prepared by Mn incorporating into the crystalline lattice of MgSnO 3 , triggering synergetic catalysis for selective aerobic oxidation of HMF to DFF. Among polymetallic oxides with varying Mn-Mg molar ratios, Mn 0.67 Mg 0.33 SnO 3 (Mn/Mg ratio = 2:1) exhibited the best catalytic activity with DFF yield of 80.6 % and selectivity of 87.5 % at 160 °C for 6 h. It is revealed by various characterization analysis that Mn species in Mn 0.67 Mg 0.33 SnO 3 could not only act as active sites directly but also promote the transformation of oxygen into singlet oxygen for HMF oxidation. Furthermore, the used Mn 0.67 Mg 0.33 SnO 3 catalyst could be successfully reactivated through a straightforward two-step regeneration method involving impregnation followed by calcination, demonstrating remarkable stability.
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高影响因子
FUEL
·
2025
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IF 7.5
Mingfu Li,Pingjun Zhang,Shuanglan Hu,Douyong Min,Jingjie Tang,Yingchuan Zhang,Liqun Jiang
The green synthesis of 5-hydroxymethylfurfural (HMF) from carbohydrates is a significant step for the production of sustainable fuels and fine chemicals, where the solvent plays an important role in terms of conversion efficiency and process sustainability. This work reports the bifunctional use of ternary deep eutectic solvents (TDESs), as both the solvent and catalyst, in the dehydration of fructose to HMF. A series of phenolic acids are used as hydrogen bond donors (HBDs) in TDESs. The combination of choline chloride–1,4-butylene glycol– p -hydroxybenzene propanoic acid (ChCl–BDO–PH) catalysed the quantitative conversion of fructose to obtain the highest HMF yield of 90.2%. Nuclear magnetic resonance and 3D-fluorescence spectroscopy analysis indicated that there were no humins polymers accumulation and it possibly formed the soluble micro-molecules humins byproducts. Moreover, HMF could be readily separated from TDESs, which allowed the stable recycling of TDESs for five recycles. Density functional theory calculations implied that a lower energy of hydrogen bond between TDESs and fructose promoted the fructose conversion and HMF formation, which is due to the methoxy group and side chain structure of phenolic acid that may reduce the ionization activity of hydrogen ions in the carboxyl group, thus reducing the hydrogen bond between TDESs and fructose. This work provides a novel alternative to traditional Brønsted acid towards the greener production of HMF.
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高影响因子
REACTIVE & FUNCTIONAL POLYMERS
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2024
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IF 4.5
Yaxue Xie,Pingxiong Cai,Huining Xiao,Yuanfeng Pan
In this work, a dual-responsive hydrogel for sustainable release of drug was prepared using chitosan grafted with PBA as substrate to form semi-interpenetrating polymer networks (S-IPN) via free-radical crosslinking polymerization of acrylic acid in the presence of MBAA as a crosslinker and KPS as an initiator as well as Fe 3+ .ions introduced. The results from comprehensive characterization indicated that the as-prepared hydrogel possesses cavity structure with the pores of varying sizes, thus facilitating the accommodation of 5-fluorouracil as a model drug. In addition, the swelling behavior of the hydrogels in different pH buffers and glucose solutions was also investigated. As expected, the prepared hydrogels are pH and glucose responsive due to PAA and phenylboronic acid incorporated into the hydrogel, which enables the slow or sustainable release of drug. Moreover, the release processes were fitted with various kinetic models whereas the release was better described by Korsmeyer-Peppas model or the drug release is mainly governed by the release mechanism of the hydrogel is primarily driven by Fickian diffusion from a mechanical point of view. Hydrogel loaded with drug was found to have good antibacterial effects against E. coli and S. aureus, leading to the potential for various medical-related applications.
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高影响因子
FUEL
·
2025
·
IF 7.5
Guopei Zhang,Cong Wang,Xiaoyang Zhang,Yong Dong,Zhaomin Li,Leteng Lin
A novel Cu 2 LaO 4 /ZSM-5 sorbent was synthesized using the sol–gel method, and the role of H 2 S in enhancing Hg⁰ removal was investigated through experimental and theoretical approaches. Mercury removal performance was evaluated in a fixed-bed reactor under simulated syngas conditions, revealing that H 2 S significantly promoted removal efficiency, achieving 95.6 % at 200 °C. In contrast, H 2 and CO inhibited Hg 0 removal by depleting surface oxygen species. The addition of H 2 S mitigated these effects, facilitating Hg 0 adsorption and oxidation via a Langmuir–Hinshelwood mechanism. Density functional theory (DFT) calculations confirmed strong chemisorption of Hg 0 and H 2 S on the Cu 2 LaO 4 surface, with adsorption energies of −123.71 kJ/mol and −168.98 kJ/mol, respectively. The reaction to form HgS had a manageable energy barrier of 25.80 kJ/mol and an exothermic enthalpy of −196.82 kJ/mol, with HgS formation as the rate-limiting step. This study highlights the effectiveness of Cu 2 LaO 4 /ZSM-5 for mercury capture and its potential application in industrial syngas purification.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2024
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IF 20.2
Ming-Kun Ke,Yuan Min,Shu-Chuan Mei,Hou-Wei Zeng,Zhao-Hua Wang,Tian-Wei Hua,Jie-Jie Chen,Gui-Xiang Huang,Han-Qing Yu
5-Hydroxymethyl-2-furancarboxylic acid (HMFCA) is an important feedstock in chemical and pharmaceutical industries . Its production through aerobic conversion of 5-hydroxymethylfurfural (5-HMF) has promising prospects but is challenged by the over-oxidation. In this work, we develop a refined Pt-Ag co-catalytic strategy to tailor the selectivity of 5-HMF’s aerobic oxidation. By simple in situ addition of AgNO 3 to the thermal catalytic system of Pt nanoparticles , the main products of 5-HMF oxidation could be shifted from 2,5-furandicarboxylic acid (FDCA) to HMFCA with an ultrahigh selectivity of over 99 %. Density functional theory calculations demonstrate that such strategy could alter the HMFCA adsorption sites from Pt to Ag sites and prevent the oxidation of hydroxymethyl group . In addition, this strategy can be extended to other Ag species, such as AgCl, Ag 2 O and AgO. This work provides insights into the Pt-Ag synergistic catalysis and opens up a simple avenue to control the product selectivity for biomass refinement.
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高影响因子
JOURNAL OF POWER SOURCES
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2024
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IF 8.1
Jinping Mu,Aijia Wei,Xiaohui Li,Rui He,Lijing Sun,Peizhao Liu,Xue Bai,Lihui Zhang,Xi Zhang,Zhenfa Liu,Jing Gao
Tris (trimethylsilyl) phosphate (TMSP) and tris(2,2,2-trifluoroethyl) phosphate (TTFP) was added to carbonate solvent-based electrolytes as dual-additives to enhance the performance of LiNi 0·5 Mn 1·5 O 4 (LNMO). The X-ray photoelectron spectroscopy results revealed that both TMSP with high oxidation ability and TTFP with high oxidation resistance participated in the formation of cathode–electrolyte interphase (CEI) films. Electrochemical impedance spectroscopy confirmed that the constructed CEI films had excellent electronic insulation and ionic conductivity , reducing the interfacial impedance of the LNMO electrode, and improving the electrochemical performance of LNMO/Li half-cells and LNMO/Li 4 Ti 5 O 12 full-cells. As measured by the nuclear magnetic resonance , the incorporation of TMSP and TTFP significantly reduced the HF content in the electrolytes. Therefore, both LNMO/Li half-cells (500 cycles with 95.7% capacity retention) and LNMO/Li 4 Ti 5 O 12 full-cells (200 cycles with 79.9% capacity retention) displayed higher cycling stabilities at 5 C owing to the synergistic effect of TMSP and TTFP. In comparison, capacity retentions of ∼76.5% after 500 cycles and ∼37.2% after 200 cycles were respectively achieved for the LNMO/Li half-cells and LNMO/Li 4 Ti 5 O 12 full-cells with the standard electrolyte at 5 C. This study provides strong evidence that additive combinations can improve the electrochemical performance of high-energy and high-voltage cathode materials .
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Ningzhao Shang,Wenjiong Li,Qingyao Wu,Huafan Li,Hongchao Wang,Chun Wang,Guoyi Bai
The electrocatalytic 5-hydroxymethylfurfural (HMF) oxidation reaction coupling with hydrogen evolution reaction (HER) serves as a promising strategy to generate both high-value-added products and clean energy, which is limited by the poor catalytic efficiency of bifunctional electrocatalysts and unclear electrocatalytic mechanism for HMF oxidation reaction. Herein, we fabricate a bifunctional NiSe 2 -NiMoO 4 heterostructure nanowire electrocatalyst for the conversion of HMF to 2,5-furandicarboxylic acid (FDCA) and simultaneous H 2 production. As expected, the NiSe 2 -NiMoO 4 exhibits outstanding activity and selectivity toward HMF oxidation reaction. In particular, at a potential of 1.50 V, the yield of FDCA could reach 98 % with a faradaic efficiency of 96.5 %, as well as excellent stability. Density functional theory calculation results demonstrate that the NiSe 2 -NiMoO 4 heterostructure could tune the adsorption energy of HMF, facilitate high-valence active species formation, and enhance electronic conductivity. Furthermore, a two-electrode electrolyzer assembled using NiSe 2 -NiMoO 4 as a bifunctional catalyst requires 1.53 V to acquire a current density of 50 mA cm −2 , which is 201 mV lower than that of water electrolysis. This work provides new insights for designing multifunctional catalysts for biomass upgrading coupled with hydrogen evolution.
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DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2024
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IF 20.2
Weipeng Song,Rui Zhang,Huai Liu,Junhua Zhang,Wenlong Jia,Lincai Peng
Direct and efficient conversion of abundant renewable biomass carbohydrates to 5-ethoxymethylfurfural (EMF), a potential biofuel candidate, is highly desirable but remains challenging. We report here the catalytic transformation of glucose using hybrid Hβ and USY zeolites in 1,4-dioxane-contained ethanol solution, leading to EMF production with an excellent yield of 60 % within 1 h. Hybrid zeolites rational modulate the chemical space, acidity, and acid sites synergistically to drive the imperative cascade reactions during the conversion. Equally important, the introduction of low-polarity aprotic 1,4-dioxane co-solvent can effectively stabilize the obtained EMF because the preferential solubilization of EMF by 1,4-dioxane resulted in a reduction of their nucleophilic charge, which in turn lowers its susceptibility to nucleophilic attack and minimizes the undesirable reactions. This work not only develops a promising protocol for EMF production from glucose but also sheds light on the mechanistic role of hybrid zeolites and 1,4-dioxane co-solvent in the cascade transformation.
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2024
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IF 12.2
Weitao Ou,Han Wang,Yingdan Ye,Huaiyuan Zhao,Yibin Zhang,Zhaoyin Hou
Chemical upcycling of waste polyethylene terephthalate (PET) to value-added products can reduce the emission of CO 2 , microplastics and toxic chemicals. In this work, mesoporous H-type Zeolite Socony Mobil-5 (HZSM-5) supported Ru catalyst (Ru/ m -HZSM-5) was synthesized and tested in the hydrogenation of PET degraded chemicals (bis(2-hydroxyethyl) terephthalate , dimethyl terephthalate, diethyl terephthalate, and terephthalic acid). Characterizations disclosed that Ru/ m -HZSM-5 catalyst possesses mesopores (a dominant channel of 5.32 nm), enlarged specific surface area (404 m 2 ·g −1 ), and Ru NPs dispersed highly (40.6 %) compared to that of Ru/HZSM-5. And also, it was found that Ru/ m -HZSM-5 was capable for the hydrogenation of benzene rings in these PET degraded chemicals with large sizes (1.09–1.82 nm). In particular, the conversion of BHET and the selectivity of BHCD over Ru/ m -HZSM-5 reached 95.5 % and 95.6 % at 120 °C within 2 h. And Ru/ m -HZSM-5 could be recycled at least five times without obvious loss of activity and selectivity.
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高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
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IF 12.2
Bingyan Sun,Haifeng Xu,Tan Li,Wenjie Guan,Kaige Wang
Upcycling waste plastic into aromatics presents an attractive strategy to tackle both plastic pollution and energy challenges. However, previous studies often rely on high temperatures, precious metals, and have broad product distributions. In this study, we reported that a Ni/ZSM-5 bifunctional catalyst can directly convert polyethylene (PE) into methylated aromatics with high selectivity under mild conditions, while eliminating the requirement for hydrogen gas and solvents. The liquid yield could attain up to 70.3 %, and the aromatics yield could achieve up to 51.7 %. Over 78.4 % of the aromatics were methylated aromatics including toluene, xylene, and mesitylene. Polymer chains underwent dehydrogenation over Ni and the acid sites in ZSM-5, forming C C bonds. Certain of these bonds evolved into carbenium ions through the process of proton transfer at the acid sites. The optimization of Ni and acid sites enhanced the oligomerization, cyclization, and aromatization process. The extra mesopores created by Ni on the molecular sieve aid in the generation of aromatics. Furthermore, the Ni/ZSM-5 catalyst demonstrated the ability to convert typical commercial grades of PE plastic, such as gloves and bottles, into aromatics with a selectivity of up to 61.1 %. It offers an economically feasible and environmentally friendly upcycling avenue for the circular economy of plastics.
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DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
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IF 7.7
Tianxu Liu,Ismail Muhammad Asif,Lichong Liu,Minghui Zhang,Bin Li,Ling Wang
Visceral and somatic hypersensitivity is a common cause of functional dyspepsia. Marine bioactive components have been revealed to possess numerous valuable abilities. However, as a kind of polysaccharide extracted from brown algae, the study focused on the biological properties of laminarin is still limited, especially in gastrointestinal disorders. In our study, indicators associated with visceral sensational function and gastrointestinal microecology were determined to investigate the modulatory effects of laminarin on functional dyspepsia induced by iodoacetamide. Mice with visceral hypersensitivity were orally administrated with laminarin (50 and 100 mg per kg bw) for fourteen days. The results indicated that laminarin partly alleviated the dysfunction by regulating corticosterone secretion, the expression of 5HT 3 receptors at both protein and mRNA levels, and mechanical transduction through the PIEZO2-EPAC1 axis. Furthermore, laminarin administration moderated the imbalanced gut microbial profile, including modulating the abundance of Bacteroidetes and Firmicutes. Our findings revealed that laminarin may restore the overexpression of 5HT 3 receptors, the abnormal mechanical transduction, and impaired gut microecology. In conclusion, we provide evidence to support the utilization of laminarin as the ingredient of complementary and alternative medicine of regulating visceral and somatic hypersensitivity.
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Yingjie Yuan,Xiangzhen Chen,Lei Jia,Yongxin Li,Dan Zhao,Lina Zhang,Yuanyuan Huang,Jun Xu,Tongqian Zhao
Long-term discharge of tetracycline (TC) in the environment exerts selective pressure on the bacteria, increasing resistance in sensitive bacteria and posing a serious threat to public health. Therefore, it is crucial to develop real-time detection of tetracycline. In this study, we reported a novel rare-earth fluorescent nanosensor FITC-GMP-Eu, based on the formation of guanosine-5′-monophosphate disodium salt (GMP) and fluorescein isothiocyanate (FITC), which enabled the real-time identification of tetracycline in the environment. When there was no TC in the environmental sample, the FITC-GMP-Eu nanosensor exhibited the green fluorescence of FITC due to the fluorescence quenching effect of water molecules on Eu 3+ . When the environmental samples contained TC, the red fluorescence of Eu 3+ could be sensitized due to the diketone structure in the tetracycline molecule, which enabled the naked-eye visualized identification of TC. The nanosensor had high sensitivity (detection limit of 19 nM) and a wide detection range (0–30 μM) for TC. At the same time, the sensor was characterized by high visualization and anti-interference ability due to the strong fluorescence of both FITC and Eu complexes. In order to improve the practicality of the detection, this study also prepared a paper-based and sodium alginate gelated fluorescence detection platform with low background fluorescence. Combined with the common color analysis and RGB extraction procedures in mobile phones, real-time and on-site identification of TC on the surface of various fruit samples can be achieved.
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