COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
·
IF 3.99
Bin Yan,Ji Lan,Yueshan Li,Yinjie Peng,Lingying Shi,Rong Ran
In this paper, hexagonal Ni(OH) 2 nanosheets were prepared by hydrothermal method with nickel chloride hexahydrate as matrix and ammonia as precipitant. The lateral size of Ni(OH) 2 nanosheets was about 100–250 nm. The structure of the Ni(OH) 2 sheets was characterized by XRD , SEM , IR, TGA etc. Pickering emulsion was prepared by using Ni(OH) 2 nanosheets as stabilizer and dichloromethane (DCM) as oil phase. Furthermore, the stability factors of Pickering emulsion and the adsorption of Congo red (CR) on interface particle layer were studied. The adsorption equilibrium of CR was analyzed by Langmuir adsorption model and Freundlich adsorption model, and the adsorption process was researched by pseudo-first-order kinetics and pseudo-second-order kinetics. Compared with Ni(OH) 2 in the water phase, the Ni(OH) 2 in interface particle layer exhibited a much higher adsorption capacity and a faster deposition rate . The adsorption mechanism of CR can be mainly attributed to electrostatic interaction between the positively charged interface particle layer and the anionic CR molecules. It can be expected that as a promising adsorbent for CR removal in water treatment, the Ni(OH) 2 sheets in Pickering interface layer can provide a new strategy for dye adsorption.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Xianshu Qiao,Hongjun Kang,Yang Li,Kai Cui,Xin Jia,Henghao Liu,Wei Qin,Max Pupucevski,Gang Wu
We report a highly efficient and stable electrode composed of a porous Fe-doped β-nickel hydroxide nanopyramid array supported on nickel foam (U–Fe-β-Ni(OH)2/NF) for overall water splitting. The unique structure is assembled via a self-templated strategy by utilizing the FeNi oxalate (FeNi–C2O4/NF) nanopyramid as the templates, followed by an anion-exchange reaction at room temperature. Due to the intrinsic activity of Fe-doped β-Ni(OH)2 along with unique porous array structures consisting of two-dimensional (2D) active materials on three-dimensional (3D) conductive substrates, the developed electrode exhibited outstanding electrocatalytic activity for both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in an alkaline medium. The introduced amount of Fe plays a significant role in promoting OER and HER activity compared to the β-Ni(OH)2 electrode. The optimal electrode (U–Fe-β-Ni(OH)2/NF-2) generated a current density of 10 mA cm–2 at low overpotentials of 218 mV for the OER and 121 mV for the HER. The electrode also demonstrated considerably stable performance during the continuous water splitting process. Furthermore, we elucidated the promotion mechanisms of the active Fe-doped β-Ni(OH)2 compound for the OER and HER based on extensive characterization and electrochemical measurements. Hence, this work provides a facile approach to developing low-cost, efficient, and stable hydroxide-based electrodes for bifunctional OER and HER in water splitting.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2022
·
IF 3.841
Jinyu Chang,Yuan Yao,Yangfeng Xia,Long Liu,Yanqiang Zhang
5-methyl-3,5-dipropyl-2-pyrazoline is an intermediate for the preparation of new high energy fuels. In this paper, chloroaluminate ionic liquids ([Bmim]Cl-xAlCl 3 , x = 1, 1.2, 1.4, 1.6, 1.8, 2.0) were applied as green catalysts for the synthesis of 5-methyl-3,5-dipropyl-2-pyrazoline through the intramolecular cyclization reaction of 2-pentyl ketazine. The effects of temperature, acidity and dosage of ionic liquids on the cyclization reaction were studied in detail and the highest catalytic performance was under the conditions as 110 °C, [Bmim]Cl-1.6AlCl 3 and 10% of 2-pentyl ketazine. With the theoretical simulations, the possible catalytic mechanism was proposed as the hydrogen-like interaction between Al ([Bmim] + AlCl 4 − ) and N1 atoms, which increases the charge of N2 atoms, thereby improving its nucleophilicity and further making it undergo intramolecular addition reaction with methyl. This study will provide guidance for the green preparation of 5-methyl-3,5-dipropyl-2-pyrazoline.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2022
·
IF 4.171
Jing Zhang,Bo Ye,Rong-Rong Wang,Xiao-Ma Tao,Ge-Mei Cai
The luminescence behavior of rare earth Eu as the famous fluorescent probe not only depends on its chemical valence, but also on the concentration and occupation in the lattice, except for the interaction with the host. Herein, previously reported monoclinic BaIn 2 (P 2 O 7 ) 2 (BIP) phosphate acts as the host, and part of In atoms have been experimentally designed to be replaced by Eu. The lattice occupation and luminescence behavior of Eu in BIP were discussed. In the PL spectra , the intrinsic emission of BIP and the emission of Eu 2+ were observed in addition to the characteristic emission of Eu 3+ , all of which were also emerged in the cathodoluminescence spectrum. EPR analysis confirmed the existence of Eu 2+ , that is, Eu 3+ is spontaneously reduced in the BIP lattice. The red/orange ratio of Eu 3+ characteristic emission changes with the change of concentration, indicating the evolution of lattice occupation. The charge density before and after Eu doped BIP was analyzed by DFT calculation. From the perspective of charge exchange, it was further confirmed that partially Eu 3+ was reduced to Eu 2+ at different In or Ba crystallographic sites. The present work demonstrates a unique case of mixed occupation, double valence and tunable emission of Eu in phosphate.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Qian-Yu Wang,Sian-Hong Ong,Zi-Ye Liu,Zhong-Wei Zhang,Quan-De Li,Ji-Ming Hu
Conductive graphene nanosheets boost oxygen evolution electrocatalysis. • Electrochemically assisted deposition forms porous Ni(OH) 2 /NiO onto freestanding graphene. • Low overpotential of 260 mV at 10 mA cm −2 and Tafel slope of 41 mV dec −1 . • Macroscopic model indicates faster *OOH formation with transfer coefficient of 0.74 Developing low-cost oxygen evolution reaction (OER) catalysts with efficient charge transport and accessible active sites is essential for alkaline water electrolysis. Here we report an electrochemically assisted technique (EAT) to deposit highly dispersed Ni(OH) 2 species on the surface of freestanding graphene (Gr) without deliberate surface functionalization, where a transient SiO 2 -derived framework assists the deposition process of Ni(OH) 2 , followed by heat treatment and alkaline etching to form an intimately contacted Gr@eNi(OH) 2 -NiO composite. On one hand, Gr enables the highly dispersed distribution of Ni(OH) 2 /NiO species and improves the accessibility of active sites for the OER. On the other hand, Gr provides good electrical conductivity and rapid charge-transfer kinetic, leading to high catalytic activity. In 1 M KOH, Gr@eNi(OH) 2 -NiO delivers an overpotential of 260 mV at 10 mA cm −2 and Tafel slope of 41 mV dec −1 , together with stable operation in alkaline electrolyte. Macroscopic kinetics analysis based on current-overpotential fitting further suggests an enhanced potential response of the *OOH-forming step, consistent with improved OER kinetics enabled by Gr-deposit coupling. This work provides a practical route to integrate Ni hydroxide/oxide phases with Gr scaffolds for efficient alkaline water oxidation. Download: Download high-res image (334KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2017
·
IF 1.591
Liuchen Zhao,Hui Zhang,Wanxu Wang,Guoyong Wang
Surface tension, steady-shear viscosity, and antibacterial activity were investigated when salicylate 2-hydroxybenzoate (NaSal) was added to the micellar solution of N-hexadecane-N-methylpyrrolidinium bromide (C16MPB). It was found that for the mixed system, two flat portions appeared on the surface tension curve with the existence of NaSal in the low-concentration range. The equilibrium contact angle of droplets was decreased with the increase of NaSal concentration. In addition, the steady-shear viscosity abruptly increased with the increase of the concentration of mixture, even if the concentration of NaSal is low. However, this high-viscosity solution exhibited temperature-sensitive property, and white precipitate formation below 18°C. Moreover, the bactericidal capability of C16MPB was affected severely by the mixture of high concentration. All of these features could be attributed to the special interactions between C16MPB and NaSal molecules, among which intramolecular hydrogen bonding of NaSal plays a key role, which have been primely demonstrated by the package of Gaussian09 in this work.
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Lujie Liu,Lu Liu,Kaidi Zhang,Mingyang Qin,Huimin Luan,Zhaochi Feng,Jiexun Chen,Liang Wang,Feng-Shou Xiao
Selective transformation of olefins is an important route to produce cyclic monoether glycol products, but the current catalysts still suffer from insufficient activity, selectivity, and durability. Herein, we reported that molybdenum oxide on siliceous beta zeolite was highly efficient for the selective conversion of cyclohexene with a trans-2-methoxycyclohexanol yield as high as 95% in the presence of methanol and tert-butyl hydroperoxide as an oxidant. This reaction included the epoxidation of cyclohexene and subsequent solvolysis. Mechanistic studies revealed that the siliceous beta zeolite benefited the formation of abundant monomeric MoOx species, which was efficient for both the epoxidation of cyclohexene and subsequent solvolysis. Furthermore, this catalyst was also active for the conversion of other olefins, achieving the corresponding β-alkoxyalcohols.
✓ 已验证
产品关联
DOI
高影响因子
WORLD JOURNAL OF GASTROENTEROLOGY
·
2023
·
IF 4.3
Heng Shi,Xin-Hai Zhao,Qin Peng,Xian-Ling Zhou,Si-Si Liu,Chuan-Chuan Sun,Qiu-Yu Cao,Shi-Ping Zhu,Sheng-Yun Sun
BACKGROUND Di (2-ethylhexyl) phthalate (DEHP) is a common plasticizer known to cause liver injury. Green tea is reported to exert therapeutic effects on heavy metal exposure-induced organ damage. However, limited studies have examined the therapeutic effects of green tea polyphenols (GTPs) on DEHP-induced liver damage. AIM To evaluate the molecular mechanism underlying the therapeutic effects of GTPs on DEHP-induced liver damage. METHODS C57BL/6J mice were divided into the following five groups: Control, model [DEHP (1500 mg/kg bodyweight)], treatment [DEHP (1500 mg/kg bodyweight) + GTP (70 mg/kg bodyweight), oil, and GTP (70 mg/kg bodyweight)] groups. After 8 wk, the liver function, blood lipid profile, and liver histopathology were examined. Differentially expressed micro RNAs (miRNAs) and mRNAs in the liver tissues were examined using high-throughput sequencing. Additionally, functional enrichment analysis and immune infiltration prediction were performed. The miRNA-mRNA regulatory axis was elucidated using the starBase database. Protein expression was evaluated using immunohistochemistry. RESULTS GTPs alleviated DHEP-induced liver dysfunction, blood lipid dysregulation, fatty liver disease, liver fibrosis, and mitochondrial and endoplasmic reticulum lesions in mice. The infiltration of macrophages, mast cells, and natural killer cells varied between the model and treatment groups. mmu-miR-141-3p (a differentially expressed miRNA), Zcchc24 (a differentially expressed mRNA), and Zcchc24 (a differentially expressed protein) constituted the miRNA-mRNA-protein regulatory axis involved in mediating the therapeutic effects of GTPs on DEHP-induced liver damage in mice. CONCLUSION This study demonstrated that GTPs mitigate DEHP-induced liver dysfunction, blood lipid dysregulation, fatty liver disease, and partial liver fibrosis, and regulate immune cell infiltration. Additionally, an important miRNA-mRNA-protein molecular regulatory axis involved in mediating the therapeutic effects of GTPs on DEHP-induced liver damage was elucidated.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Fungi
·
2023
·Vol. 9
·期 9
·930
·
IF 4.7
Qiuli Ouyang,Shiwei Shi,Yangmei Liu,Yanqin Yang,Yonghua Zhang,Xingxing Yuan,Nengguo Tao,Lu Li
Geotrichum citri-aurantii(G. citri-aurantii) is one of the most important postharvest pathogens leading to a postharvest loss of citrus by causing sour rot. In this study, the antifungal activity oftrans-2-hexenal, a natural component of essential oil, againstG. citri-aurantiiwas evaluated.Trans-2-hexenal treatment inhibited the mycelia growth ofG. citri-aurantiiwith a minimum inhibitory concentration and minimum fungicidal concentration oftrans-2-hexenal at 0.50 and 1.00 μL/mL, respectively. Moreover,trans-2-hexenal efficiently reduced the incidence of sour rot of Satsuma fruit inoculated withG. citri-aurantii. Ultrastructural observations and Fourier transform infrared (FT−IR) results showed thattrans-2-hexenal treatment affected the cell wall and cell membrane instructions ofG. citri-aurantii. The content ofβ-1,3-glucan was significantly decreased aftertrans-2-hexenal treatment, but the cell wall permeability was not changed. The decrease in lipid and ergosterol contents might be responsible for this antifungal activity. Several important genes,FKS1,ERG1,ERG7, andERG11, showed decreasing expression levels aftertrans-2-hexenal treatment. Molecule-docking results also indicated thattrans-2-hexenal could join with the protein of FKS1, ERG1, ERG7, and ERG11 to impact enzyme activities. These results demonstrated thattrans-2-hexenal is a promising fungicide for controlling sour rot of harvested citrus fruit by damaging the membrane integrity ofG. citri-aurantii.Keywords:G. citri-aurantii;trans-2-hexeanl;antifungal mechanism;cell wall;cell membrane
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACTA HISTOCHEMICA
·
2023
·
IF 2.5
Yan Wu,Jun Zhang,Xintian Wang,Yuncong Xu,Jinxu Zheng
Objective Idiopathic pulmonary fibrosis (IPF) is considered as a chronic interstitial lung disease with underlying mechanism of IPF remaining unclear, while there are no definitive treatment options. In recent years, scientists have gradually paid attention to the influence of angiogenesis on IPF. Because IPF is a progressive with microvascular remodeling disorder, scientists have postulated that angiogenesis may also be one of the initiating and contributing factors of the disease. Bupleurum is a common natural Chinese herbal medicine with antibacterial, anti-inflammatory, anti-tumor and other pharmacological effects. As the most important active monomer of Bupleurum, Saikosaponin-d (SSd) is a new discovery with anti-pulmonary fibrosis (PF) activity. This study attempts to investigate the role of SSd in the interference of PF through regulation of angiogenesis in IPF through Angiopoietin (Angpt) /Tie receptor 2 (Tie2) pathway. Methods Randomly, we allocated C57BL/6 mice into four groups (n = 20 in each group). Afterwards, establishment of IPF model was accomplished via intratracheal administration of bleomycin (BLM, 5 mg/kg), while corresponding drug intervention was given accordingly. On 3rd, 7th, 14th and 28th days after modeling, we performed histopathological examination through staining. Meanwhile, immunohistochemistry (IHC) of PF and the expression of related factors were observed, while Ang/Tie2 pathway was assessed by ELISA with the effect of SSd on angiogenesis related proteins in IPF being explored with IHC and Western Blot technique. Results Our results showed that SSd could reduce inflammation and PF levels in lung tissue of experimental mice, while levels of angiogenesis-related factors, namely Tie-2, Ang-1 and ANGPT2 (Ang-2), fibrosis- associated factors like Alpha-smooth muscle actin (α-SMA), collagen-I and hydroxyproline in SSd and dexamethasone (DXM) mice were significantly reduced at each time point compared to BLM (p < 0.01). Additionally, we discovered substantial decreased expressions of Ang-1, Ang-2, Tie-2, α-SMA and collagen-I at protein level in SSd and DXM mice at each time point compared to BLM (p < 0.05). Besides, insignificant differences were observed between SSd and DXM groups (p > 0.05). Conclusion This study has demonstrated that SSd could down-regulate the expression of ANG-1, Ang-2 and Tie2 in the Ang/Tie2 pathway, and may reduce lung inflammation and PF in BLM-induced mice via inhibition of angiogenesis.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Microorganisms
·
2023
·Vol. 11
·期 12
·2954
·
IF 4.5
Shufang Sun,Nawen Tang,Kun Han,Qunqing Wang,Qian Xu
Applying plant-derived fungicides is a safe and sustainable way to control wheat scab. In this study, volatile organic compounds (VOCs) of wheat cultivars with and without the resistance geneFhb1were analyzed by GC-MS, and 2-phenylethanol was screened out. The biocontrol function of 2-phenylethanol onFusarium graminearumwas evaluated in vitro and in vivo. Metabolomics analysis indicated that 2-phenylethanol altered the amino acid pathways ofF. graminearum, affecting its normal life activities. Under SEM and TEM observation, the mycelial morphology changed, and the integrity of the cell membrane was destroyed. Furthermore, 2-phenylethanol could inhibit the production of mycotoxins (DON, 3-ADON, 15-ADON) byF. graminearumand reduce grain contamination. This research provides new ideas for green prevention and control of wheat FHB in the field.Keywords:2-phenylethanol;Fusarium graminearum;volatile organic compounds (VOCs);antifungal mechanism;metabolomics
✓ 已验证
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Yidi Teng,Xiaoke Wei,Bingshu Wu,Yanmin Liu,Naixuan Fan,Yueyu Ma,Fengxiang Wang,Xiangyu Dou,Xifeng Yang,Weiwei Zhang
Developing eco-friendly coatings is crucial for protecting the surface of carbon steel , and particularly important is the development of chemically stable, durable, and highly stable superhydrophobic coatings which have become a growing trend. In this study, a hydrophobic nano-composite coating was synthesized, which consists of 2-methylimidazolezincsalt (ZIF-8) particles stabilized in cross-linked TEOS and coated with micro/nano-sized silica . Electrochemical experiments and surface analysis were conducted to evaluate the electrochemical behavior and interaction mechanism between ZIF-8 @SiO 2 /APTES/EP and Fe. The results showed that ZIF-8 @SiO 2 /APTES/EP has excellent inhibition performance in 3.5 wt% NaCl solution with inhibition efficiency up to 99.99%. Even after soaking for 72 h, the impedance modulus remains at 6 orders of magnitude, demonstrating excellent anti-corrosion performance. SEM and contact angle analysis demonstrated that a dense ZIF-8 @SiO 2 /APTES/EP film was formed on the mild steel surface, which has good corrosion resistance and chemical stability. This study is of great significance for guiding the design of high-performance hydrophobic coatings and meets the requirements of various industries for corrosion protection of mild steel surfaces.
✓ 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）