JOURNAL OF MEMBRANE SCIENCE
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2022
·
IF 10.53
Huanni Xia,Hua Jin,Yating Zhang,Hao Song,Jianqiao Hu,Yun Huang,Yanshuo Li
Membrane technology with environmentally friendly and cost-efficient features has been well acknowledged as a promising solution for effective CO 2 separation. Metal organic framework (MOF) glasses are one of the most attractive membrane materials currently, because of their easy processability, absence of grain-boundary defects, and permanent porosity. In this study, a mixed linker tetrahedral imidazolate framework-4 (TIF-4) MOF with ultrahigh glass forming ability was selected for fabricating highly CO 2 selective membranes. Through adjusting the molar ratio of the imidazole (Im) and 5-methylbenzimidazolate (5-mbIm) linkers in the TIF-4 framework, the melting temperatures as well as the CO 2 adsorption property could be controlled systematically. After vitrification, TIF-4 glasses (a g TIF-4) with varying 5-mbIm content were prepared, and all of them exhibit higher isosteric heat of CO 2 adsorption than the corresponding TIF-4 crystals. Both CO 2 /CH 4 and CO 2 /N 2 uptake ratio (298 K, 1 bar) of a g TIF-4 samples are more than twice as that of TIF-4 crystals, suggesting the great potential of a g TIF-4 for CO 2 separation. Further, a g TIF-4 membranes were successfully prepared by the melt-quenching process from the polycrystalline membranes. a g TIF-4 membranes are highly CO 2 selective with CO 2 /N 2 and CO 2 /CH 4 separation factors of 27 and 30. More importantly, a g TIF-4 membrane displays long-term stability up to 10 months, which is highly conductive to its industrial application for CO 2 separation.
研究领域:
材料科学
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环境工程
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
·
IF 9.4
Mengying Tao,Zhaowei Jia,Hui He,Yanhu Han,Xin Yu,Yaofei Ren,Yuewei Wu,Yintong Lin,Zhongfeng Shi,Zhenxia Zhao,Zhongxing Zhao
Photocatalytic reduction of CO 2 exhibits unsatisfactory photocatalytic performance owing to the inefficient separation of photogenerated electron-hole pairs, low CO 2 capture efficiency and limited visible light absorption on most photo-catalysts. Herein, Ti F bridged IL-CuCQDs-F/TiO 2 inverse opal composite (IO-CFTi) was constructed for boosting CO 2 visible-photo reduction via slow photo effect. In this work, ethylenediaminetetraacetic acid (EDTA(Cu)) and imidazole ionic liquid 1-(2-Hydroxyethyl)-3-methylimidazolium tetrafluoroborate ([HOEtMIM][BF 4 ]) were employed to confine grow of IL-CuCQDs-F within TiO 2 inverse opal supporter via Ti F bonds connection. Unique IL-CuCQDs-F efficiently expended light absorption towards visible region, and the confined growth of IL-CuCQDs-F within the TiO 2 inverse opal cavity achieved the photoelectric conversion and efficient CO 2 capture. Moreover, their Ti F bonding interface of IO-CFTi assisted photogenerated electron transportation from TiO 2 to CO 2 for its reduction in this system. Consequently, IO-CFTi achieved a substantially increased CO production rate of 78.1 μmol·h −1 ·g −1 with 98 % selectivity. This improved performance in CO 2 photoreduction positions the nanocomposite as a promising material for preservation of the environment and conversion of energy.
研究领域:
环境科学
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材料科学
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光催化
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DOI
PubMed
高影响因子
Cell Communication and Signaling
·
2025
·Vol. 23
·期 1
·1-17
·
IF 8.9
Wang Jing,Li Zuo-Lin,Zhou Yan,Li Zhong-Tang,Tu Yan,Hu Xin-Hui,Zhu Jin-Hua,Liu Bi-Cheng,Liu Hong
Background Hypoxia-inducible factor prolyl hydroxylase inhibitor (HIF-PHI) represents a novel therapeutic approach for renal anemia, a prevalent complication of chronic kidney disease (CKD). However, the effects of HIF-PHI on renal functional outcomes remain poorly characterized. Here, the potential effects of FG-4592, an orally administered HIF-PHI, on renal fibrosis were explored systematically. Methods In this study, a CKD rat model was established through subtotal 5/6 nephrectomy. Rats were administered either FG-4592 or vehicle control via oral gavage three times weekly for 12 consecutive weeks. Additionally, recombinant FGF23 was continuously delivered via subcutaneously implanted Alzet osmotic minipumps for 28 days. Results Interestingly, we found that CKD-induced anemia was significantly ameliorated in CKD rats with FG-4592 treatment. Meanwhile, markedly alleviated histopathological changes and renal tubulointerstitial fibrosis (TIF) were observed in rats with FG-4592 administration. Notably, serum levels of intact FGF23 (iFGF23) were significantly reduced following FG-4592 administration in CKD rats. This finding was subsequently validated in CKD patients receiving Roxadustat therapy. Mechanistically, we illustrated that inhibition of the iFGF23-WNT5A pathway was the exact mechanism by which FG-4592 ameliorated TIF. Further, we also demonstrated that transcriptional activation of Furin enzyme was the exact molecular mechanism for FG-4592-mediated iFGF23 cleavage. Conclusions FG-4592 attenuates TIF through Furin-mediated proteolytic cleavage of iFGF23. These findings provide novel mechanistic insights into HIF-PHI-mediated renal protection and establish a theoretical framework for clinical translation.
研究领域:
肾脏病学
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分子生物学
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DOI
PubMed
高影响因子
CRYSTENGCOMM
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2016
·Vol. 18
·期 21
·3842-3849
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IF 3.849
Chunping Gao,Qi Shi,Jinxiang Dong
The performance of two hydrophobic zeolitic imidazolate frameworks, MAF-6 and TIF-1 Zn, in adsorptive separation of 1-butanol from acetone–butanol–ethanol model fermentation broth was studied and compared to the data reported for ZIF-8. It was found that, in single-component systems, the adsorption capacities of ZIF-8 and MAF-6 were larger than that of TIF-1 Zn, mainly because of their larger pore volume; however, the time necessary to reach equilibrium was shorter when TIF-1 Zn with a larger pore aperture was used. In breakthrough experiments, it was shown that the adsorptive separation mechanism on ZIF-8 and MAF-6 was based on combined thermodynamics and kinetic effects; on TIF-1 Zn, thermodynamic adsorption took place.
研究领域:
生物工程
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化学工程
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Yu Ma,Dongyu You,Yu Fang,Jian Luo,Qinhe Pan,Yunling Liu,Fei Wang,Weiting Yang
The removal of lead ions from water is a global concern due to the great damage to human health when they enter the human body through drinking water. Herein, metal-organic framework/chitosan composite beads for the adsorption of Pb(II) were prepared by the secondary growth method, which allowed the domain-limited growth of TIF-A1 (a tetrahedral imidazolate framework) in the porous matrix of chitosan. This material can remove trace Pb(II) from aqueous solution (100 ppb) with an efficiency of 99.95%, and the remaining Pb(II) content meets the international drinking water standards. Moreover, it exhibited good recoverability for at least five adsorption/desorption cycles. The adsorption mechanism can be ascribed to that Pb(II) ions chelate with the hydroxyl, carboxyl and amino groups in the adsorbent. This work offers a good adsorbent for the removal of trace Pb(II), which has potential applications in reclaimed water treatment.
研究领域:
环境科学
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材料科学
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水处理
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DOI
高影响因子
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