LANGMUIR
·
2021
·
IF 3.882
Hui Peng,Ruyi Xie,Kuanjun Fang,Chuangui Cao,Yong Qi,Yanfei Ren,Weichao Chen
Digital inkjet printing technology plays an increasingly important role in textile printing. The printing printability of reactive dye inks is the key to improving the quality of printed fabrics. In this study, an eco-friendly and simple method to improve the inkjet printability of reactive dye solutions was proposed. The influence of diethylene glycol on the surface tension, rheology, and dye molecule aggregation properties for three reactive dye solutions was investigated. The jetting performance of dye solutions was explored by observing droplet formation. Moreover, the color performance of printed cotton fabrics, including reactive dye solution penetration, colorimetric values, and color strength, was evaluated. Addition of diethylene glycol could change the aggregation of dye molecules by hydrophobic forces and hydrogen bonds. Diethylene glycol could inhibit formation of satellite droplets by changing the viscosity and surface tension of solutions, which made the pattern printed on cotton fabrics show regular edge sharpness. Furthermore, the dye solutions containing 10% DEG not only satisfied various properties of reactive dye inks but also had the highest color strength and the deepest and brightest colors.
研究领域:
纺织科学
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材料科学
·
化学工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2016
·
IF 1.835
Kai Kang,Xiaopo Wang,Fuxin Yang,John M. Prausnitz
Experimental density data are reported for diethylene glycol monobutyl ether, diethylene glycol dibutyl ether, and ethylene glycol monobutyl ether from (283.15 to 363.15) K at pressures up to 60 MPa using a vibrating-tube densimeter. Relative uncertainties of density measurements are 0.001 with confidence level 0.95. The experimental data were fitted with a Tait-like equation; average relative deviations were 0.017% for diethylene glycol monobutyl ether, 0.015% for diethylene glycol dibutyl ether, and 0.019% for ethylene glycol monobutyl ether. The isobaric thermal expansivity and the isothermal compressibility were derived from the Tait-like equation.
研究领域:
物理化学
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流体性质研究
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高压物性分析
·
化工热力学
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DOI
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2015
·
IF 1.098
Wei Wang,Zhi Yun,Zhigang Tang,Xia Gui
The binary vapor–liquid equilibrium data of CO 2 in diethylene glycol (monomethyl, monoethyl, monobutyl, dimethyl, diethyl, dibutyl) ether were determined from 288.15 to 318.15 K at pressure up to 6 MPa based on the constant-volume method. It was found by contrast that the ether group in solvents can promote the CO 2 absorption, but the hydroxyl group will inhibit the CO 2 absorption. Furthermore, the solubilities of CO 2 showed an upward trend with the increasing molecular lengths of absorbents. The experimental data were also correlated with a modified Patel–Teja equation of state (PT EOS) combined with the traditional van der Waals one-fluid mixing rules and the results showed a satisfactory agreement between the model and the experimental data.
研究领域:
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2019
·
IF 5.107
Nengwen Gao,Wei Fan,Zhi-Kang Xu
Protein separation and purification is important in biotechnology and food processing industries. Ceramic membranes have shown great potentials for this task. But membrane fouling remains a barrier to their widespread application due to the irreversible adsorption of protein onto the membrane. In this work, one-step co-deposition of dopamine (DA) and diglycolamine (DGA) was conducted on the ceramic membranes for fabricating protein-resistant surfaces. CuSO 4 /H 2 O 2 was used as a trigger to shorten the deposition time and to improve the deposition efficiency. The effect of DA/DGA mass ratio on the membrane structures and properties was studied by FESEM, FTIR, XPS and contact angle measurements. The results indicate that the optimal DA/DGA mass ratio in the co-deposition solution is 1:4. The modified membranes show improved hydrophilicity and negatively charged property. In dynamic protein filtration, these ceramic membranes exhibit a higher permeate flux, a higher water flux recovery, and a lower water flux reduction compared to the original membrane. Moreover, the antifouling property of the modified membrane is preserved after the membranes are treated with high speed water scouring. As a result, this one-step co-deposition method is a simple and effective way to prepare durable fouling-resistant ceramic membranes for protein removal.
研究领域:
生物技术
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材料科学
·
分离工程
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DOI
高影响因子
ACS Omega
·
2024
·
IF 3.7
Tianle Xu,Xinran Ju,Hui Tang,Wenli Xiang
Fir wood was modified using epoxy soybean oil, diethylene glycol, and maleic anhydride as raw materials to enhance its mechanical properties, thermal stability, and water resistance. Diethylene glycol first opens the epoxy ring of the soybean oil and then reacts with maleic anhydride to produce an esterification reaction. The product modifies the fir wood through a chemical impregnation method. A systematic evaluation of the modified wood’s weight gain ratio, density, mechanical properties, thermal stability, water resistance, and microstructural changes was conducted. The results show that the compressive strength increased from 38.1 to 94.9 MPa, the water absorption rate decreased from 158.03 to 6.93%, and the thermal stability was also enhanced. This study provides a simple, low-cost, and green method for improving the comprehensive performance of fast-growing fir wood, offering new insights for achieving sustainable development and green chemical engineering.
研究领域:
木材科学
·
绿色化学
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产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2018
·
IF 5.158
Ruixi Bai,Fan Yang,Yang Zhang,Zhigang Zhao,Qiuxia Liao,Peng Chen,Panpan Zhao,Wanghuan Guo,Chunqing Cai
Inspired by the phenomenon of sponges soaking up water, a novel syringe-like adsorption device used diglycolamic-acid modified chitosan sponges (CSs-DGAA) as adsorbents is reported for recycling of rare-earth elements (REEs) by Squeezing & Soaking (S&S) operation. Integrating the elasticity of sponges and selective extraction ability of diglycolamic acid groups, the new device can efficiently recycle REEs from aqueous solutions. This device only needs 10 min to achieve adsorption equilibrium; squeezing the water from the sponges achieves solid-liquid separation. This syringe-like adsorption method not only solves the pollution problem caused by the organic solvents used during liquidliquid extractions, but also improves the time needed to achieve adsorption equilibrium and uses significantly less energy than energy intensive solid-phase extractions of solid-liquid separations. Moreover, the environment-friendly adsorbents effectively recycle yttrium and europium from waste phosphor powders. These experimental results demonstrated that the S&S method based on polymeric sponges has potential application in hydrometallurgy and environmental remediation.
研究领域:
材料科学
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环境科学
·
冶金学
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产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Ning Wu,Hao Guo,Liping Peng,Mingyue Wang,Yujuan Cao,Meng Yang,Lei Sun,Wu Yang
Thiodiglycolic acid (TDGA) is regarded as a sensitive biomarker for biological monitoring of VCM exposure. A simple, fast and reliable TDGA analysis method is of great significance to human health and the ecological environment. In this work, a novel core-shell nanomaterial based on p-type semiconductor@MOFs (Eu-CBO@Uio-66) is first prepared by in-situ growth and post-synthesis modification (PSM) as a ratiometric fluorescent probe for detecting TDGA, which shows a high sensitivity with a detection limit down to 51.1 μg L −1 (about 0.34 μM), relatively broad linear range (0–700 mg/L), fast response to TDGA within 2 min. As a result, after dispersing the resulting composite material in a solution containing TDGA, the blue emission of Eu-CBO@Uio-66 at 466 nm remains unchanged, while the red emission of Eu 3+ center at 615 nm is significantly quenched, even in coexistence with other potentially analytes in the urine, so that the peak height ratio of the two emissions could be employed for determining TDGA. In addition, the significant ratiometric luminescence response caused by TDGA makes Eu-CBO@Uio-66 undergo a significant color transition from red to blue under UV-lamp, which is beneficial for visual analysis with the naked eye.
研究领域:
分析化学
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环境科学
·
医学诊断
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产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2024
·
IF 3.8
Si-Tong Zheng,Zi-Ying Wang,Zhen Liu,Yingxiang Du,Ling Cao,Sheng Tang,Hian Kee Lee,Yaozuo Yuan,Hai-Wei Shi
Ethylene glycol (EG) and diethylene glycol (DEG) are two contaminants known to cause a variety of human health problems, when ingested in certain amounts, they can cause adverse effects such as nephrotoxicity, neurotoxicity and even death. They are widely found in propylene glycol, which is commonly used as a base for pharmaceutical syrups. The aim of this study was to develop an analytical method for the evaluation of EG and DEG in commercially available pediatric syrups. In this study, a fast, simple and reliable ultrahigh performance supercritical fluid chromatography-electrospray ionization-mass spectrometry (UHPSFC-ESI-MS) method was developed. The work involved the evaluation of three derivatization reagents for UHPSFC-ESI-MS. Benzoyl chloride was finally selected as the optimal derivatization reagent. Compared with an approach without derivatization, the present method achieved the separation and detection of EG and DEG efficiently, sensitively and rapidly, and analysis of EG and DEG in syrup formulations was realized within 7 min. The linear determination coefficients of EG and DEG in the concentration range of 0.25–25.0 μg/mL were greater than 0.999. The limits of detection for EG and DEG were 0.02 μg/mL and 0.07 μg/mL, respectively, and the limits of quantification were 0.09 μg/mL and 0.25 μg/mL, respectively. The recovery rates of DEG and EG ranged from 85.5%–108.1% and 86.7%–117.2%, respectively. The absolute values of the matrix effects in the three types of syrups considered were all less than 10%. Meanwhile, a gas chromatography-hydrogen flame ionization detection method was established for cross-testing of the analytical results. In 10 batches of syrup formulations, DEG was not detected by either method. The presence of EG was detected by UHPSFC-ESI-MS in only three batches, none of which exceeded 90.23 parts per million (ppm), with a mean absolute error of 5.95 ppm between the two sets of results. The developed UHPSFC-ESI-MS method was rapid, simple, efficient, sensitive and accurate for the determination of EG and DEG in genuine syrup formulations.
研究领域:
分析化学
·
药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MINERALS ENGINEERING
·
2020
·
IF 3.795
Zhigang Zhao,Peng Chen,Fan Yang,Qiuxia Liao,Yang Zhang,Panpan Zhao,Wanghuan Guo,Ruixi Bai,Chunqing Cai
The type of diglycolamic acid extractant N , N -di-2-ethylhexyldiglycolamic acid (D2EHDGAA) was examined for selective extraction and separation of Au(III) in acidic chloride solutions containing Pd(II), Pt(IV), Rh(III), and Cu(II). The separation factor β Au/Pt = 959.3 was observed in 7 M hydrochloric acid. The extraction of Au(III) was quick, and extraction equilibrium was reached in less than 5 min. The n -dodecane and kerosene diluents had a notable effect on the extraction of Au(III) with the D2EHDGAA, and the D2EHDGAA had excellent capacity in n -dodecane and kerosene. However, the selectivity coefficient of Au(III) and Pd(II) was better in n -dodecane (β Au/Pd = 1070) than in kerosene (β Au / Pd < 0.1) of 4 M hydrochloric acid. The extraction mechanisms of the Au(III) and Pt(IV) were investigated, and the results suggest that one metals ion is extracted with two and one extractants in 1 M HCl concentration. The D2EHDGAA-based n -dodecane extracting phase was easily activated using a low-concentration thiourea aqueous solution (0.01 M). The recyclability of D2EHDGAA for five cycles was investigated, and its efficiency decreased less than 4%.
研究领域:
化学工程
·
环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2017
·
IF 4.421
Ruixi Bai,Yang Zhang,Zhigang Zhao,Qiuxia Liao,Peng Chen,Panpan Zhao,Wanghuan Guo,Fan Yang,Laichao Li
Rapid and highly selective magnetic core–shell adsorbents for Pb 2+ removal from simulated wastewater of rare-earth industry were prepared by synthesizing chitosan-coated Fe 3 O 4 (Fe@CS) beads and following chemical-grafting steps for the diglycolamic-acid group (DGA). The adsorbents had a highly selective ability for Pb 2+ toward other metal ions, which attributed to the superior infinity between the DGA and Pb 2+ . The maximum adsorption capacity of Pb 2+ was 70.57 mg/g. The R 2 of the pseudo-second order kinetics was 0.99857, which indicated the adsorption process was controlled by chemical reactions. Moreover, diglycolamic-acid functionalized Fe@CS (Fe@CS-DGA) beads separated from water within 9 s under magnetic fields.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2022
·Vol. 331
·期 4
·1759-1767
·
IF 1.754
Liu Yaoyang,Liu Zhibin,Zhao Chuang,Jiao Caishan,Zhang Meng,Zhou Yu,Gao Yang,Li Huibo,He Hui
In order to further study the structure-performance relationship of unsymmetrical diglycolamides. In this work, two types of unsymmetrical diglycolamides (Structure A : N,N’ -dimethyl- N,N’ -didecyl diglycoamide, L I , N,N’ -dimethyl- N,N’ -didodecyl diglycoamide, L III ; Structure B : N,N -dimethyl- N’,N’ -didecyl diglycoamide, L II , N,N -dimethyl- N’,N’ -didodecyl diglycoamide, L IV ), which are geometrical isomers each other, were synthesized, and their extraction performances in 40/60 (v/v)% n-octanol/kerosene were studied and compared. The related results reveal that the size of the alkyl substituents attached on the amide N atoms can influence the extractant performance of the extractant, and the difference in the geometric structure of extractants can lead to the differences in their extraction performances.
研究领域:
化学
·
材料科学
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产品关联
DOI
高影响因子
RSC Advances
·
2021
·Vol. 12
·期 2
·790-797
·
IF 3.361
Yaoyang Liu,Chuang Zhao,Zhibin Liu,Sheng Liu,Yu Zhou,Caishan Jiao,Meng Zhang,Yang Gao,Hui He,Shaowen Zhang
Two isomeric diglycolamide (DGA) extractants, N,N′-dimethyl-N,N′-dioctyl diglycolamide (LI) and N,N-dimethyl-N′,N′-dioctyl diglycolamide (LII), were used to perform a comparative study on the extraction performances towards several lanthanides by extraction experiments and theoretical calculations. The experimental results show that both LI and LII show a positive sequence on the extraction of lanthanides, and LI exhibits the higher complex ability with these lanthanides than LII, except for La and Ce. Slope analysis shows that 1:2 or 1:3 complexes are formed between the two ligands and the metal ions. The geometrical structures of the complexes were optimized in the gas phase by density functional theory (DFT) on the basis of complex compositions. The results of bond lengths, MBOs and topological analysis indicated that the electrostatic interaction between metal ions and two amide O atoms in the LII ligand is not as homogeneous as in LI, and this inhomogeneity is likely to be related to the poor extraction performance of LII.
研究领域:
化学
·
理论计算
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）