FOOD RESEARCH INTERNATIONAL
·
2021
·
IF 6.475
Xin Ying,Jiaxing Gao,Jing Lu,Changlu Ma,Jiaping Lv,Benu Adhikari,Bo Wang
Soy peptide solution (40%, w/w) was successfully encapsulated in a W 1 /O/W 2 double emulsion produced by a two-step emulsification process. Polyglycerol polyricinoleate (PGPR) was found to be an effective inner emulsifier compared to Span 60 and lecithin to produce stable W 1 /O primary emulsion. The primary emulsion was subsequently emulsified into an outer aqueous phase (W 2 ) containing octenyl succinic anhydride (OSA) starch and maltodextrin. The droplet size and encapsulation efficiency of the peptide solution in W 1 /O/W 2 emulsion were found to depend on the W 1 :O ratio, peptide concentration in the inner W 1 phase and homogenization condition of the secondary emulsification step. The double emulsion with the highest encapsulation efficiency (>80%) was prepared by: (i) using 40% (w/w) soy peptide solution as W 1 phase; (ii) controlling W 1 :O ratio at 3:7 (w/w) and (iii) homogenizing the emulsion at 10,000 rpm for 3 min. The freeze-dried microcapsule powder of W 1 /O/W 2 emulsion showed higher encapsulation efficiency (>70%) compared to spray-dried one. The freeze-dried microcapsule of W 1 /O/W 2 double emulsion developed in this study is a promising delivery matrix to encapsulate hydrophilic ingredients including peptides. Fourier-transform infrared spectroscopy (FTIR) spectra of the microcapsule powder indicated good compatibility between peptide and encapsulants.
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Tao Zhang,Hongzheng Pu,Hanlu Zeng,Ying Zhou,Xiangnan Gong,Qian Ye,Chuanyao Yang,Dingfeng Yang,Yuanyuan Li
Orbital engineering is an important strategy for modulating light absorption in photocatalysis . Here, Bi doping of the oxide photocatalyst Li 2 SnO 3 to enhance light absorption was rationally designed by orbital engineering. Based on density functional theory, owing to the lower Bi 6s energy level compared with that of Sn 5s, a deep impurity energy level induced by ionic Bi–O bonds is generated in the middle band gap of Li 2 SnO 3 . The impurity energy level can facilitate the utilization efficiency of light absorption, leading to remarkably enhanced photocatalytic performance. For Li 2 Sn 0.9 Bi 0.1 O 3 , the photodegradation rate of tetracycline solution reached 76% within 30 min, which was approximately 2.6 times higher than that for Li 2 SnO 3 . A radical trapping experiment revealed that the holes (h + ) play a dominant role in the elimination reaction . Finally, liquid chromatography–mass spectrometry was performed to monitor the photocatalytic process. This study lays a foundation for rational design of photocatalysts with excellent light absorption for photocatalysis .
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2021
·Vol. 32
·期 11
·15046-15058
·
IF 2.478
Zhong Yue,Chen Zhou,Chen Gui,Luo Yang,Zhang Lizhong,Hua Bin,Li Jianhui,Sun Yifei
The development of an efficient synthesis process for carbon-based supercapacitor electrodes is highly appreciated for its practical application. In this work, using β-cyclodextrin (O and C sources), melamine (C and N sources) and zinc chloride (active agent) as affordable precursors, we proposed a cost-efficient route integrating one-pot hydrothermal treatment and in situ carbonization/activation to obtain a N/O co-doped hierarchically porous carbon sheets and employ them as a potential electrode for supercapacitor. The β-cyclodextrin with abundant hydrophobic cavity assists the formation of porous architecture with a large specific surface area (SSA) of 1427 m 2 g −1 . The materials are systematically characterized using various technologies including SEM, XRD, Raman, TEM and XPS measurements. Further, the supercapacitor performances are analyzed using cyclic voltammetry at different scan rates, ac impedance and galvanostatic charge/discharge measurement. A specific capacitance of 240 F g −1 (at 0.5 A g −1 ) and 120 F g −1 (at 0.3 A g −1 ) could be obtained in three-electrode system and symmetric two-electrode full device measurements, respectively. This work points out a new avenue for the fabrication of carbon-based high-performance supercapacitors.
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DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2020
·
IF 7.053
Xingzhong Zhang,Xiaogang Luo,Yixiang Wang,Yan Li,Bin Li,Shilin Liu
In this work, concentrated Pickering emulsions had been prepared by using soybean protein isolate (SPI) and TEMPO-oxidized bacterial cellulose (TOBC) complex as solid stabilizers. The effects of solid particle content, pH and oil phase volume fraction on the morphology, stability and rheological behaviors of the emulsions had been investigated. It indicated that the emulsion droplets had uniform particle size distribution when the ratio of SPI/TOBC was controlled to 12.5:1 (wt/wt). The emulsification performance could be improved with the increase of solid complex particles content from 1.0% to 3.0%. Moreover, the pH played an important role in regulating the structure and properties of the emulsions. With microscopic observation, the emulsions at pH 7.0 had smaller droplet size (10–15 μm) than that (15–40 μm) of the emulsions at pH 3.0. While the emulsions at pH 3.0 maintained a low creaming index (CI) value than those at pH 7.0, and uniform cellular network structure could be seen by SEM observation. It suggested that the electrostatic complexation between soy proteins and anionic bacterial cellulose nanofibrils at pH 3.0 was more favorable for stabilizing emulsions than those at pH 7.0. This work would provide some guidance for regulating the properties of emulsions that stabilized by soy protein and cellulose nanofibrils.
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DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2020
·
IF 7.053
Cen Zhang,Yang Li,Peng Wang,Jiawen Li,Jochen Weiss,Hui Zhang
Core-shell nanofibers were prepared by electrospinning of corn oil-in-water emulsions stabilized by electrostatic gelatin-gum arabic complexes as a mixed monolayer. The addition of gum arabic decreased the apparent viscosity and induced a transition from a shear-thinning to a more Newtonian-like flow behavior of the emulsions, which helped form electrospun fibers with straight, bead-in-string, and spindle-like morphologies. These fibers had a high thermal decomposition stability upon heating to 250 ° C, which was attributed to electrostatic interactions and newly formed hydrogen bonds between gelatin and gum arabic. The encapsulation efficiency of corn oil in fibrous mats at various mixing ratios was over 84%, and showed no significant changes during 7 days of storage. This work thus gives an insight into the development of electrospun nanofibers as encapsulation matrices using monolayer emulsions stabilized by electrostatic protein-polysaccharide complexes for applications in the food, pharmaceutical or personal care industries.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Wen-Long Yu,Shi-Lei Zhao,Guang-Wen Xu,Xin Li,Xiao-Lei Zhang,Yu-Ling Shan,Jun-Wei Ding,Guo-Hui Qin,Jun-Mei Zhang,Xiang Feng,De Chen
The chloroxylenol (PCMX) has shown well virucidal efficacy against COVID-19, but the large-scale utilization of which will undoubtedly pose extra environmental threaten. In the present study, the recycled industrial phenylenediamine residue was used and an integrated strategy of “carbonization-casting-activation” using super low-dose of activator and templates was established to achieve in-situ N/O co-doping and facile synthesis of a kind of hierarchical hyperporous carbons (HHPC). The sample of HHPC-1.25–0.5 obtained with activator and template to residue of 1.25 and 0.5 respectively shows super-high specific surface area of 3602 m 2 /g and volume of 2.81 cm 3 /g and demonstrates remarkable adsorption capacity of 1475 mg/g for PCMX in batch and of 1148 mg/g in dynamic column adsorption test. In addition, the HHPC-1.25–0.5 exhibits excellent reusability and tolerance for PCMX adsorption under various ionic backgrounds and real water matrix conditions. The combined physio-chemistry characterization, kinetic study and DFT calculation reveal that the enhanced high performances originate from the hierarchical pore structure and strong electrostatic interaction between PCMX and surface rich pyridinic-N and carbonyl groups.
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2019
·Vol. 43
·期 11
·4640-4647
·
IF 3.069
Wei-Song Gao,Jin-Miao Wang,Ning-Ning Shi,Chang-Neng Chen,Yu-Hua Fan,Mei Wang
To mimic the strategy used by natural photosynthesis in Photosystem II, which adopts the cubic Mn4CaO5 cluster as a natural oxygen-evolving complex, a bio-inspired cubane-like tetranuclear cluster [Cu4(pdmH)4(OAc)2](NO3)2·3H2O (1) has been synthesized successfully with pyridine-2, 6-dimethanol as the ideal ligand, and investigated by X-ray crystallography, PXRD, in situ UV-vis-NIR spectroelectrochemical analysis, and magneto- and electrochemistry. By X-ray analysis, it is shown that the distorted cubane-like core Cu4(μ3-O)4 is composed of four CuII and four μ3-O which arrange at the vertices of a slightly distorted cube. Electrochemical studies indicate that complex 1 presents potential properties as an effective molecular catalyst for electrocatalytic water oxidation under aqueous alkaline conditions at a potential of ∼1.20 V vs. NHE with a relatively low overpotential of ∼400–665 mV vs. NHE, which may result from the unique covalent metal–oxo bonding. Magnetic susceptibility measurements reveal that complex 1 displays overall antiferromagnetic exchanges between the Cu(II) ions within the clusters. Temperature dependence of in-phase (χM′) ac susceptibility signals display frequency-dependence, whereas the out-of-phase (χM′′) signals show no significant frequency-dependence for complex 1, which indicates that the complex may not be a SMM.
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Guangchang Yang,Shenglong Yang,Feiyan Lai,Chunlei Tan,Jia Qiao,Hongqiang Wang,Qianqian Jin,Xiaohui Zhang
Current research has found the amorphous/crystal interface has some unexpected electrochemical behaviors. This work designed a surface modification strategy using NaBH4 to induce in situ conversion of the surface structure of Ni-rich LiNi0.8Co0.1Mn0.1O2 (NCM811) into TM-B-O amorphous interface layer. Oxidizing the surface from transition metals (TM) with high valence and reductive BH4– in a weak polar medium of ethanol results in an easy redox reacton. A TM-B-O amorphous structure is formed on NCM811 surface. The action of reactive wetting ensures a complete and uniform structure evolution of the surface crystals. The complete coverage protects the outer crystal and the heterogeneous interface impedance between the modified layer and bulk is reduced. More importantly, this amorphous interface layer through in situ conversion enhances the heterogeneous link at interface and its own structural stability. The modified NCM811 (TB2@NCM) treated with 1 wt % NaBH4 shows excellent electrochemical performance, especially cyclic stability. At a high cutoff voltage of 4.5 V, the capacity retention was 72.5% at 1 C after 500 cycles. The electrode achieves 173.7 mAh·g–1 at 10 C. This work creates a modifying strategy with potential application prospect due to simple technology with low-cost raw material under mild operating conditions.
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DOI
高影响因子
Journal of Agriculture and Food Research
·
2024
·
IF 4.8
Minghao Jiang,Qiongfang Jiang,Huimin Yang,Yue Zhang
W/O/W double emulsion systems offer the ability to co-deliver water-soluble and oil-soluble bioactives, making them a promising choice for multifunctional delivery applications. This study focused on the development of a whey protein isolate-based W/O/W emulsion encapsulating fish oil and anthocyanins, with the addition of sodium alginate (SA) into the external aqueous phase. The physicochemical properties, emulsion stability, anthocyanins encapsulation efficiency (EE), and anthocyanins release during simulated gastrointestinal digestion were studied. The results indicated that the physical stability of W/O/W emulsions improved with increasing SA, attributed to the higher viscosity and the protective coating of SA on the WPI-stabilized interface. However, the EE of anthocyanins in SA-reinforced W/O/W emulsions was found to be lower. Excessive SA concentration, such as 1.0%, was observed to be unfavorable to maintaining the internal W 1 /O interface integrity. Overall, the double emulsion structure effectively regulated the release of anthocyanins throughout the digestion process. The study concluded that W/O/W emulsions containing 0.75% SA achieved optimal stability and controlled-release characteristics. These findings offer valuable insights into fabricating double emulsions for multifunctional delivery purposes, showcasing their potential applications in the food and pharmaceutical industries.
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 36
·期 11
·1-22
·
IF 2.8
Liu Gang,Zhang Aoyang,Ahmed Shams Forruque,Ma Weiwu
In the current study, nitrogen and oxygen (N/O)-co-doped porous carbon for supercapacitors was successfully synthesized from sunflower discs through activation modification with potassium citrate and urea. Material characterization and electrochemical performance testing in three-electrode and two-electrode systems demonstrated that the porous carbon (SDU-900), prepared under activation conditions at 900 \(^{\circ }\) C exhibited an interconnected pore structure and excellent electrochemical properties. In a three-electrode system (6 M KOH as the electrolyte, current density of 0.5 A/g), SDU-900 demonstrated a high specific capacitance of 294.2 F/g. Moreover, the symmetric device based on SDU-900 exhibits an excellent energy density of 20.05 Wh/kg at a power density of 495 W/kg. After 15,000 galvanostatic charge–discharge (GCD) cycles at 5 A/g, the initial specific capacitance was retained at 93.89%, indicating remarkable cycling stability. Notably, the activation process utilized sunflower discs discarded from agricultural production as precursors, replacing the highly corrosive alkali activators with potassium citrate, a benign salt. This approach provides an environmentally friendly method for synthesizing porous carbon for supercapacitor applications.
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高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-9
·
IF 15.7
Zhang Xiu-Feng,Zhang Shi-Nan,Zhang Zhao,Leng Bing-Liang,Lu Kai-Yuan,Chen Jie-Sheng,Li Xin-Hao
Deuterated organic compounds have gained significant attention due to their diverse applications, including reaction mechanism studies, probes for metabolism and pharmacokinetics, and raw materials for labeled compounds and polymers. Conventional reductive deuteration methods are limited by the high cost of deuterium sources (e.g., D₂ gas) and challenges in product separation and D₂O recycling. Electrochemical deuteration using D₂O is promising, but existing methods still suffer from low Faradaic efficiency (FE) and high separation costs. Herein, we report a deuterium ion diffusion-based all-solid electrolyser, featuring a RuO₂ anode for D + generation from pure D 2 O and a Pd/nitrogen-doped carbon-based liquid diffusion cathode (Pd δ+ /NC LDC) with tunable electron deficiencies Pd δ+ /NC to enhance selective deuteration. This system achieves over 99% selectivity for deuterated benzyl alcohol with a FE of 72%, and demonstrates broad applicability for the deuteration of aldehydes, ketones, imines, and alkenes with high FE and selectivity. Moreover, the Pd δ+ /NC-based electrolyser can achieve ten-gram-scale production of deuterated benzyl alcohol over 500 hours, showcasing its potential for high-throughput, solvent-free deuteration reactions in practical applications.
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产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2021
·
IF 9.147
Junmeng Lu,Xinglian Xu,Xue Zhao
In the current study, the interfacial rheological properties of alkali pH-shifted MP under pH 11.0 → 7.0, pH 11.5 → 7.0 and pH 12.0 → 7.0 have been firstly investigated. The molecular weight and microstructure of myofibrillar protein (MP) treated by alkali pH-shifting were investigated by gel-permeation chromatography (GPC) and transmission electron microscopy (TEM). Results indicated a swollen, organized and aggregated structure of refolded MP. Overall, the molecular change in refolded MP led to faster protein adsorption towards the O/W interface, enhanced intermolecular interaction between adsorbed proteins and improved elasticity of interfacial film compared to native MP. After β-mercaptoethanol (β-ME) was added, the advantage of refolded MP in diffusion phase no more existed due to the disruption of aggregation and decreased molecular size, besides the penetration and rearrangement were interfered because the disruption of disulfide bond inhibited the formation of interfacial protein layers. With the protein concentration increasing, MP molecules crowding at O/W (oil in water) surface limited the development of a highly elastic network. As revealed by Tween 20 displacement, MP layers with higher interfacial elasticity were more resistant to displacement. Moreover, after displacement the coalescence stability of emulsion droplet was enhanced but the mechanical strength of interfacial MP layer was reduced. Altogether MP (0.04 or 0.2 mg/mL) treated by pH 11.0 → 7.0 exhibited the best adsorption performance and interfacial properties, which were important in stablizing emulsions. Thus, interfacial behavior regulation by alkali pH-shifting may be a applicable process for developing meat protein-based emulsions in food industry.
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高影响因子
危险品化学品经营许可证（带存储）