CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Xiao-Chun Yang,Xiao-Xue Wang,Chen-Yu Wang,Meng Yin,Ke Ma,Yan Li,Ke-Zheng Chen,Sheng-Lin Qiao
Meningitis is a critical condition, particularly prevalent among young children, necessitating prompt diagnosis and intervention to prevent severe complications and mortality. This study presents the design and application of Janus-adhesive ionogels for real-time monitoring of physiological parameters with a focus on the early detection and management of infantile meningitis. The ionogel features a dual-layer structure, with an inner adhesive layer that strongly adheres to the skin and an outer anti-adhesive layer that minimizes external interference, ensuring accurate and reliable monitoring. These ionogels demonstrate superior properties such as high tensile strength, breathability, anti-freezing capabilities, and excellent ionic conductivity, making them ideal for continuous, long-term monitoring. The integrated monitoring system effectively tracks joint activity, body temperature, and ECG signals, providing real-time data critical for early warning and intervention in meningitis cases. This research represents a significant advancement in the field of wearable health monitoring technologies, showcasing the potential of Janus-adhesive ionogels to enhance the performance of wearable devices and contribute to personalized medicine.
研究领域:
医学
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材料科学
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生物医学工程
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2026
·
IF 7.6
Deqing Wei,Xu Li,Xinyi Deng,Xiaohui Liu,Peng Lu,Feng-Wu Bai,Yong Guo,Feng-Li Zhang,Yanqin Wang
The high-value utilization of wheat straw, which is a major agricultural residue in China, is of significant importance. This study presents a mild and efficient process for the oxidative fractionation of wheat straw using a synergistic alkaline deep eutectic solvent (DES) combined with Fenton-like reagents (OH– + H2O2 + Fe2+). Under mild conditions (90 °C, 1 h), the process achieved 85.78% delignification while retaining 91.76% of the cellulose. Notably, the resulting pulp showed excellent digestibility, yielding 96.12% glucose and xylose with a very low cellulase loading (6 FPU of CTec3), which outperforms most state-of-the-art systems. Comprehensive investigations confirmed the critical role of alkaline DES and the enhancing effect of the Fenton-like reagents. Furthermore, the DES could be recycled ten times with only a minor reduction in fractionation efficiency. This work offers a promising strategy for the mild and sustainable biorefining of lignocellulosic biomass.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2021
·
IF 3.764
Yufei Huang,Xiaowen Zhang,Xiao Luo,Hongxia Gao,Zain Ali Saleh Bairq,Paitoon Tontiwachwuthikul,Zhiwu Liang
The huge energy consumption of rich amine solution regeneration severely restricts the large-scale application and promotion of the CO2 capture process by the amine method. In order to reduce the operating energy consumption during the CO2 capture process using amines, especially the energy consumption of absorbent regeneration, zeolite β/SBA-15 (BS) has been synthesized in this work using the hydrothermal method with zeolite beta (β) as the silicon source; β was used to prepare the novel Zr@BS and Fe–Zr@BS catalysts for amine regeneration. Experiments for CO2 stripping were performed at 370.15 K using amine solvent [monoethanolamine (MEA)] with an initial CO2 loading of 0.50 mol CO2/mol amine. Additionally, all the materials were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, N2 adsorption–desorption experiment, ammonia temperature-programmed desorption, and pyridine adsorption infrared spectroscopy. Also, the catalytic CO2 desorption performances of seven different catalysts (β, SBA-15, three BS catalysts, Zr@BS, and Fe–Zr@BS) were investigated and assessed from the aspects of the cyclic capacity, desorption rate, and energy consumption. Experimental results indicated that the Fe–Zr@BS catalysts exhibited superior catalytic behaviors than other catalysts studied in this work, improving the desorption factor of MEA solution by 212% and bringing down the energy heat by 33% compared with 5 M MEA solution without catalysts. Furthermore, the Fe–Zr@BS catalysts show good stability and easy regeneration and do not influence absorption performance of the amine solution. Moreover, the possible catalytic mechanism for amine regeneration was proposed, and the stability of the material in terms of the structure of the material and the regeneration heat duty were also studied.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
Surfaces and Interfaces
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2021
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IF 4.837
Sixun Niu,Xiaobin Dong,Weifen Zhang,Xiansong Li,Shiquan Liu
SiO 2 -Cu x O composites may have potential applications in antibacterial and dye degradation . However, it is still a challenge to prepare SiO 2 -Cu x O films with well crystallized Cu x O nanoparticles and high Cu/Si molar ratios under alkaline condition at relatively low temperature. Herein, by using PVP stabilized alkaline silica sol and ethanolic solution of copper acetate, a series of SiO 2 -Cu x O composite films with high Cu/Si molar ratios were successfully prepared via a facile two-step process of dip coating and annealing. The microstructure and crystalline phase of the composite films were finely controlled by changing the amount of PVP, the concentration of copper solution and the calcination temperature. The results showed that film prepared with 1 mol/L copper acetate solution and calcined at 500 °C exhibited the best antibacterial activity , adsorption and photocatalytic performance toward methylene blue in solutions. The prepared films could be conveniently used in antibacterial field and the treatment of organic wastewater.
研究领域:
材料科学
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环境科学
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微生物学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2021
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IF 7.312
Xiaoling Li,Xiaobin Zhou,Jianwen Wei,Yinming Fan,Lei Liao,Hongqiang Wang
To advance carbon dioxide (CO 2 ) capture technology by simultaneously reducing the energy penalty and mitigating equipment corrosion, a novel nonaqueous biphasic solvent comprising monoethanolamine (MEA), 2-amino-2-methyl-1-propanol (AMP), dimethyl sulfoxide (DMSO), and N,N,N',N'',N''- pentamethyldiethylenetriamine (PMDETA) was proposed for CO 2 capture in this study. The performance testing results demonstrated that the MEA-AMP-DMSO-PMDETA (M-A-D-P) biphasic solvent with the optimal composition could realize a high CO 2 loading of 0.88 mol·mol −1 and that its rich phase stored 95.3% of the absorbed CO 2 but constituted only 56.8% of the total volume. 13 C NMR analysis and quantum chemical calculations showed that both MEA and AMP could absorb CO 2 to form carbamate and carbamic acid species, with the latter being the dominant reaction product. Since the products were polar and could form hydrogen bonds with polar DMSO, the two had satisfactory mutual solubility, while less polar PMDETA was isolated, thereby leading to a phase change. After phase separation, only the CO 2 -rich phase required regeneration. Consequently, M-A-D-P significantly reduced the sensible heat and vaporization heat by 63.1% and 94.8%, respectively, compared to the benchmark MEA solution. Moreover, the results of the corrosion test demonstrated that M-A-D-P was virtually noncorrosive to carbon steel; thus, it clearly outperformed the MEA solution. Therefore, the novel M-A-D-P biphasic solvent may be a promising candidate for advancing energy-efficient and noncorrosive CO 2 capture.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
Chemical Engineering and Processing-Process Intensification
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2020
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IF 3.731
Haryo Wibowo,Wenjuan Liao,Xuanyou Zhou,Caimeng Yu,Dicka Ar Rahim,Dwi Hantoko,Huan Qun,Mi Yan
In this study, the effect of absorption pressure and temperature towards the CO 2 absorption capacity and rate of choline chloride - monoethanol amine deep eutectic solvent (ChCl-MEA DES) was evaluated. Water mixing into ChCl-MEA DES was also examined as a method to improve CO 2 absorption behavior. Equilibrium experiments were done in a batch reactor and the data was analyzed using response surface methodology (RSM). Results suggested that the dominant mode of CO 2 absorption by ChCl-MEA DES was physical absorption. The maximum capacity of CO 2 absorption obtained in this study was 0.379 mol-CO 2 /mol-DES from absorption at (10 bar, 40 °C) using DES with 50 %v water. Water mixing up to 50 %v was found to nearly double the CO 2 absorption capacity of ChCl-MEA DES compared to neat DES. Study into CO 2 absorption rate by ChCl-MEA DES found that it is mainly influenced positively by pressure and water content, while not significantly influenced by temperature. CO 2 absorption rate of ChCl-MEA DES with 50 %v water was found to be on average twice of that of neat DES. It was also found that water content up to 50 %v does not change the mechanism of CO 2 absorption by ChCl-MEA DES.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
Optoelectronics Letters
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2020
·Vol. 16
·期 4
·293-297
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IF 0
Li Peng,Zhang Hong-yan,Li Zhi-jun,Zhang Jun
The influence of polyvinylpyrrolidone (PVP) and monoethanolamine (MEA) as surfactants on photoluminescence (PL) of Eu-doped ZnO (ZnO:Eu) has been studied. X-ray diffraction (XRD) results show that there are more Eu 3+ ions to replace Zn 2+ ions into ZnO lattice for ZnO:Eu in the presence of surfactant MEA. From the spectral analysis for ZnO:Eu with different surfactants by Gaussian deconvolution, it can be seen that the use of MEA as a surfactant affects the energy transfer from ZnO host to Eu 3+ ions and leads to three new emission peaks, including UV emission (389 nm), violet emission (411 nm) and green emission (506 nm).
研究领域:
材料科学
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光学
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DOI
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2020
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IF 3.573
Juan Lv,Sen Liu,Hao Ling,Hongxia Gao,Wilfred Olson,Qiang Li,Zain Ali Saleh Bairq,Zhiwu Liang
A new sulfolane/secondary amine biphasic absorbent, sulfolane/2-methylaminoethanol (MAE) solution, was developed for postcombustion CO2 capture (PCC). Surprisingly, using a 4M/5M sulfolane/MAE solution saves about 60% energy consumption (EC) for CO2 stripping when compared with traditional aqueous 5M monoethanolamine (MEA) solutions. First, we theoretically proved that MAE in sulfolane-based biphasic solution improves the CO2 absorption rate with high CO2 loading at the phase-changing point, which could be energy-saving for CO2 stripping. Based on a comprehensive comparison of the phase-changing behavior, nuclear magnetic resonance (NMR) spectra, absorption rate, and desorption performance, the 4M/5M sulfolane/MAE was determined to be the optimal molar ratio among six sulfolane/MAE biphasic solutions for CO2 capture. In addition, the absorption and desorption experiments with various temperatures revealed that relatively low temperature (ranging from 110 to 120 °C) was favorable for CO2 removal and energy-saving. Furthermore, the 4M/5M sulfolane/MAE solution achieved a very low energy consumption (EC) compared with that of 5M MEA solution, and the stripped CO2 amount is similar to that of 5M MEA and 5M MAE solutions.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2020
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IF 7.632
Hui Li,Hui Guo,Shufeng Shen
Solvent regeneration for the conventional aqueous amine-based CO2 capture is very energy intensive. Development of phase-changing absorbents is an attractive solution for low energy consumption. In this work, a novel water-lean amino acid salt-based biphasic absorbent was proposed to improve CO2 capture performance and energy efficiency. Potassium prolinate (ProK) and potassium sarcosinate (SarK) with a secondary amino group were used as active components, and 2-alkoxyethanols with low volatility, low specific heat, and low viscosity were used as physical antisolvents and triggered the formation of solid phase during CO2 absorption. CO2 absorption and desorption characteristics in these systems and continuous capture cycles were investigated under ambient pressure. Relative regeneration energy consumption for solvent regeneration was also evaluated in comparison with the benchmark aqueous MEA. Phase change behavior and partition of CO2 absorbed in liquid and solid phases were characterized, and the product species in CO2-rich solid phase were identified by 13C NMR and XRD. Results demonstrated that using weak polar solvents, such as 2-methoxyethanol (EGME) and 2-ethoxyethanol (EGEE), can be favorable for the formation of solid precipitates in these systems investigated. Solid slurry with CO2 loading of 2.5–3.5 mol kg–1 can captured about 50–80% of the absorbed CO2. Ionic products such as bicarbonate and protonated amino acid salt were proved to be the main compositions in the solid precipitate. In comparison with aqueous 5.0 M MEA, the 3.0 M ProK/EGME system showed comparable cyclic capacity (about 0.80 mol kg–1) and a little higher desorption efficiency. Surprisingly, about 40–50% reduction of regeneration energy indicates that water-lean phase change ProK/EGME absorbent has a great potential for advanced CO2 capture technology.
研究领域:
化学工程
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环境科学
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高影响因子
ENVIRONMENTAL SCIENCE & TECHNOLOGY
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2020
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IF 7.864
Xiaobin Zhou,Xiaoling Li,Jianwen Wei,Yinming Fan,Lei Liao,Hongqiang Wang
To address the problems of the relatively high energy penalty and corrosivity of aqueous biphasic solvents, a novel nonaqueous biphasic solvent composed of 2-((2-aminoethyl)amino)ethanol (AEEA), dimethyl sulfoxide (DMSO), and N,N,N′,N″,N″-pentamethyldiethylenetriamine (PMDETA) was proposed for CO2 capture. With optimization, this novel AEEA–DMSO–PMDETA (A–D–P) biphasic solvent could achieve a high CO2 loading of 1.75 mol·mol–1, of which 96.8% of the absorbed CO2 was enriched in the lower phase with only 49.6% of the total volume. 13C NMR analysis and quantum calculations revealed that A–D–P could absorb CO2 to form not only carbamate but also carbamic acid species, which were stabilized by DMSO via hydrogen-bonding interactions. Most products were highly polar and preferred to dissolve in polar DMSO rather than the less polar PMDETA, thus leading to the phase change. The thermodynamics results showed that the heat duty of A–D–P was only 1.66 GJ·ton–1 CO2 (393.15 K), which was significantly lower than that of the benchmark MEA (3.59 GJ·ton–1 CO2) and the reported aqueous biphasic solvents. Moreover, A–D–P presented a noncorrosive behavior to steel after CO2 saturation, clearly showing its superiority over MEA and the aqueous biphasic solvents. Therefore, with superior properties of energy savings and noncorrosiveness, the A–D–P biphasic solvent could be a promising candidate for CO2 capture.
研究领域:
化学工程
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环境科学
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DOI
PubMed
高影响因子
APPLIED ENERGY
·
2019
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IF 8.426
Hui Guo,Chenxu Li,Xiaoqin Shi,Hui Li,Shufeng Shen
High energy consumption for CO 2 capture using aqueous amines is still a major drawback limiting its deployment on a global scale. In this work, the absorption-desorption performance of CO 2 into several blends of monoethanolamine (MEA) or diethanolamine (DEA) with glycol ethers (2-methoxyethanol (2ME) and 2-ethoxyethanol (2EE)) as nonaqueous solvents has been investigated at ambient pressure. Reaction mechanisms and the relative heat duty for these nonaqueous systems were also explored and compared with those of the aqueous MEA. Results showed that the nonaqueous absorbents with 5.0 M MEA had comparable absorption capacity with aqueous 5.0 M MEA and higher desorption efficiency resulting in a larger cyclic capacity (1.45 mol kg −1 ). Higher partial pressure ratio of CO 2 to solvent vapor under the desorption conditions was also observed for these nonaqueous systems. 13 C NMR, FTIR spectra and online conductivity analysis provided evidences that CO 2 can react with MEA in nonaqueous solvents forming the ionic couples (i.e. protonated MEA and carbamate) as well as carbamic acid at high CO 2 loading. The mixture of MEA and 2ME or 2EE could significantly reduce the energy consumption by about 55% as compared to the benchmark aqueous 5.0 M MEA system.
研究领域:
化学工程
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环境科学
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高影响因子
Materials Research Express
·
2019
·Vol. 6
·期 12
·125018
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IF 1.449
Hui Zou,Yi Wu,Caixia Yao,Shiqi Duan,Zhiyuan Liu,Zhengyu Yan,Shenghua Liao
A novel method for preparing CuInS2/ZnS quantum dots (CuInS2/ZnS QDs) with the crystal structure of sphalerite by one-pot hot injection was developed in this paper. The as-prepared core CuInS2 quantum dots (CuInS2 QDs) was uniform spherical nanoparticle with the average diameter of about 2 nm with the fluorescent quantum yields (QY) of about 2.6%. By capping a shell of ZnS on the surface of CuInS2 QDs, the formed CuInS2/ZnS QDs exhibited obvious enhanced fluorescent emission with the QY of about 20%. Intriguingly, the crystal structure of obtained CuInS2/ZnS QDs is sphalerite, which was confirmed by XRD. Considering the different terminal group between these small organic molecules, mercaptoacetic acid (TGA), thioglycerol (TGC) and mercaptoethylamine (MEA) were further selected as capping molecules to exchange the surface ligands of CuInS2/ZnS QDs. The obtained CuInS2/ZnS QDs modified with TGC exhibited excellent photostability in physiological conditions. To investigate the effect of ligand molecules on the biocompatible of CuInS2/ZnS QDs, the experiment on the cytotoxicity of CuInS2/ZnS QDs to A549 cells were conducted. The results indicated that CuInS2/ZnS QDs capped with TGC showed the lowest cytotoxicity while CuInS2/ZnS QDs capped with MEA exhibited the highest cytotoxicity among the three types of CuInS2/ZnS QDs modified with ligands with different terminal group. These results provided a sight on how to select surface ligands to modify CuInS2/ZnS QDs when CuInS2/ZnS QDs will apply in biological fields.
研究领域:
材料科学
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生物医学
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高影响因子
危险品化学品经营许可证（带存储）