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Asymmetric transfer hydrogenation of prochiral ketone catalyzed over Fe-CS/SBA-15 catalyst

XUE Ping, WU Tao

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 251-255 doi: 10.1007/s11705-007-0045-1

Abstract: A heterogeneous chiral catalyst Fe(III)-CS (chitosan) complex/mesoporous molecular sieve SBA-15 (Santaprochiral acetophenone and 4-methyl-2-pentanone to corresponding chiral alcohols were carried out on Fe-CS/SBA-15 at atmosphere pressure using 2-propanol as hydrogen donor.Effects of Fe content in catalyst, reaction temperature, reaction time and promoter KOH concentrationFe-CS/SBA-15 with 2.2% mass fraction Fe exhibits considerable enantioselectivity and catalytic activity

Keywords： asymmetric transfer     enantioselectivity     Fe-CS/SBA-15     aliphatic     aromatic    

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Oxidation-extraction desulfurization of model oil over Zr-ZSM-5/SBA-15 and kinetic study

Chuanzhu LU,Hui FU,Huipeng LI,Hua ZHAO,Tianfeng CAI

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 203-211 doi: 10.1007/s11705-014-1420-3

Abstract: ZSM-5/SBA-15 composite molecular sieves were synthesized using post-synthesis method and characterizedtetrabutyl ammonium bromide as phase transfer catalyst, dimethyl sulfoxide as extractant, and Zr-ZSM-5/SBA-15-15, Ag-ZSM-5/SBA-15, Ce-ZSM-5/SBA-15 as catalyst.Under the optimal conditions, the desulfurization rate decreases in the order: Zr-ZSM-5/SBA-15>Ce-ZSM-5/SBA-15>Ag-ZSM-5/SBA-15.

Keywords： composite molecular sieve     oxidation desulfuration     extraction     kinetic    

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Enhanced desulfurization performance of hybrid membranes using embedded hierarchical porous SBA-15

Ye Zhang, Jian Song, Josue Quispe Mayta, Fusheng Pan, Xue Gao, Mei Li, Yimeng Song, Meidi Wang, Xingzhong Cao, Zhongyi Jiang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 661-672 doi: 10.1007/s11705-019-1830-3

Abstract: study, novel hybrid membranes are designed by embedding hierarchical porous Santa Barbara Amorphous 15(SBA-15) with a dual-pore architecture (micropores and mesopores) for pervaporation desulfurization.The SBA-15 with cylindrical mesopores provides molecular transport expressways to ensure improved permeabilityConsidering thiophene/ -octane mixture as a model system, the hybrid membrane with embedded 6 wt-% SBA-15-15 exhibits optimal pervaporation desulfurization performance with a permeation flux of 22.07 kg·m ·

Keywords： hybrid membranes     hierarchical porous SBA-15     sieving effect     pervaporation     desulfurization    

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Covalent triazine framework with efficient photocatalytic activity in aqueous and solid media

Cyrine Ayed, Wei Huang, Kai A. I. Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 397-404 doi: 10.1007/s11705-019-1884-2

Abstract: the range of the application media of CTFs and design hybrid material of a CTF and mesoporous silica (SBA-15-15) for efficient photocatalysis in aqueous medium.A thiophene-containing CTF was directly synthesized in mesopores of SBA-15.

Keywords： photocatalysis     covalent triazine framework     aqueous medium     SBA-15     solid state    

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A mini review on chemical fixation of CO 2 : Absorption and catalytic conversion into cyclic carbonates

Weili DAI, Chaktong AU, Shenglian LUO, Shuangfeng YIN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 163-171 doi: 10.1007/s11705-009-0235-0

Abstract: We fabricated bismuth biphenoate complex, Zn-Mg-Al composite oxides, and SBA-15 or Al-SBA-15 immobilizedZn-Mg-Al oxides and SBA-15 or Al-SBA-15 immobilized ionic liquid, are efficient for the synthesis of

Keywords： SBA-15     CO cycloaddition     Al-SBA-15 immobilized     CO     dissociation    

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Characterization and catalytic properties of mesoporous CuO/SBA-16 prepared by different impregnation

DONG Yongli, YUAN Fulong, ZHU Yujun, ZHAO Lina, CAI Zhicheng

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 150-154 doi: 10.1007/s11705-008-0036-x

Abstract: CuO/SBA-16 catalysts were prepared by two different routes – the conventional impregnation method andreduction (H-TPR) measurements which reveal that the cubic cage-like () pore structure of the parent SBAThe CuO/SBA-16 prepared by modified impregnation method has a single highly dispersed CuO which is consideredCuO/SBA-16 prepared by the conventional impregnation method shows the presence of bulk CuO species which

Keywords： different     CuO/SBA-16     temperature     physisorption     introduction    

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GDF15 negatively regulates chemosensitivity via TGFBR2-AKT pathway-dependent metabolism in esophageal

Frontiers of Medicine 2023, Volume 17, Issue 1,   Pages 119-131 doi: 10.1007/s11684-022-0949-7

Abstract: Growth differentiation factor 15 (GDF15) is crucial in the development of various types of tumors andIn this study, the link between GDF15 and chemotherapy resistance in ESCC was further explored.The relationship between GDF15 and the chemotherapy response was investigated through in vitroESCC patients with high levels of GDF15 expression showed an inferior chemotherapeutic response.and that GDF15 can be targeted during chemotherapy, resulting in beneficial therapeutic outcomes.

Keywords： GDF15     esophageal squamous cell carcinoma     chemoresistance     cellular metabolism     TGFBR2     AKT    

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Gradient-based compressive image fusion

Yang CHEN,Zheng QIN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 3,   Pages 227-237 doi: 10.1631/FITEE.1400217

Abstract: We present a novel image fusion scheme based on gradient and scrambled block Hadamard ensemble (SBHE) sampling for compressive sensing imaging. First, source images are compressed by compressive sensing, to facilitate the transmission of the sensor. In the fusion phase, the image gradient is calculated to reflect the abundance of its contour information. By compositing the gradient of each image, gradient-based weights are obtained, with which compressive sensing coefficients are achieved. Finally, inverse transformation is applied to the coefficients derived from fusion, and the fused image is obtained. Information entropy (IE), Xydeas’s and Piella’s metrics are applied as non-reference objective metrics to evaluate the fusion quality in line with different fusion schemes. In addition, different image fusion application scenarios are applied to explore the scenario adaptability of the proposed scheme. Simulation results demonstrate that the gradient-based scheme has the best performance, in terms of both subjective judgment and objective metrics. Furthermore, the gradient-based fusion scheme proposed in this paper can be applied in different fusion scenarios.

Keywords： Compressive sensing (CS)     Image fusion     Gradient-based image fusion     CS-based image fusion    

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Influence of Tensile Overload on Fatigue Life of LC4CS Al-alloy After Corrosion

Jiang Hui,Yang Xiaohua

Strategic Study of CAE 2006, Volume 8, Issue 2,   Pages 44-46

Abstract:

Having undergone accelerative calendar corrosion, a plate with a central hole of LC4CS alloy was subjected

Keywords： LC4CS Al-alloy     corrosion before loads     overload     fatigue life    

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Sediment environmental capacity of 137Cs in Daya Bay

ZHANG Junli, CHEN Jiajun, XU Jialin, LI Yuanxin, HUANG Naiming

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 202-206 doi: 10.1007/s11783-007-0035-z

Abstract: mass conservation theory in a system, the concept and model on sediment environmental capacity for CsThe static capacity for Cs in the upper sediment near the shore at a shallow area was calculated, andThe results showed that the estimated environmental capacity for Cs in sediments was approximately equalto the current input of Cs into the sediments.Controlling the input of Cs in the sediments within the environmental capacity guarantees the sustainability

Keywords： concept     Sediment environmental     conservation theory     significant degradation     ecosystem    

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Beneficial metabolic activities of inflammatory cytokine interleukin 15 in obesity and type 2 diabetes

Jianping Ye

Frontiers of Medicine 2015, Volume 9, Issue 2,   Pages 139-145 doi: 10.1007/s11684-015-0377-z

Abstract: In this review article, interleukin 15 (IL-15) is used as a new example to explain the beneficial effectsIL-15 expression is induced in immune cells by endotoxin and in muscle cells by physical exercise.In the regulation of metabolism, IL-15 reduces weight gain without inhibiting food intake in rodents.In human, circulating IL-15 is negatively associated with body weight.The mechanism of IL-15 action remains to be fully uncovered in the regulation of energy expenditure.

Keywords： inflammation     obesity     cytokine     energy expenditure     insulin resistance    

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The performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1366-2

Abstract:

•Bacterially-mediated coupled N and Fe processes examined in incubation

Keywords： Denitrification     N2O emission     Fe(II) oxidation     Fe/N ratio     Fe minerals    

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All-inorganic TiO/CsAgBiBr composite as highly efficient photocatalyst under visible light irradiation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1925-1936 doi: 10.1007/s11705-023-2344-6

Abstract: A leading star in photocatalysis has been revealed as lead-free Cs2AgBiBr6 doubleIn this work, this photocatalytic process was facilitated by a unique TiO2/Cs2AgBiBrTiO2/Cs2AgBiBr6 composite was investigated for its structure and photocatalyticproposes the band gap matching, carrier separation, and photocatalytic mechanism of TiO2/Cs

Keywords： Cs2AgBiBr6 nanocrystals     visible-light photocatalyst     Cs2AgBiBr    

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evaluation of heavy metal contamination of sediment in Lake Dianchi by using modified AHP method and Cs

ZHANG Yan, GAO Xiang, ZHONG Zhenyu, PENG Buzhuo, DENG Xihai

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 370-379 doi: 10.1007/s11783-008-0054-4

Abstract: Through the use of general sampling and measurement by Cs dating, problems regarding the absence of

Keywords： Dianchi     Analytical Hierarchy     monitoring     modified Analytical     importance    

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Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles ofFe dissolution

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1586-8

Abstract:

● nZVI, S-nZVI, and nFeS were systematically compared for Cd(II) removal.

Keywords： Nano zero valent iron     Sulfided zero valent iron     FeS     Cd(II) immobilization     Fe dissolution    

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Title Author Date Type Operation

Asymmetric transfer hydrogenation of prochiral ketone catalyzed over Fe-CS/SBA-15 catalyst

XUE Ping, WU Tao

Journal Article

Oxidation-extraction desulfurization of model oil over Zr-ZSM-5/SBA-15 and kinetic study

Chuanzhu LU,Hui FU,Huipeng LI,Hua ZHAO,Tianfeng CAI

Journal Article

Enhanced desulfurization performance of hybrid membranes using embedded hierarchical porous SBA-15

Ye Zhang, Jian Song, Josue Quispe Mayta, Fusheng Pan, Xue Gao, Mei Li, Yimeng Song, Meidi Wang, Xingzhong Cao, Zhongyi Jiang

Journal Article

Covalent triazine framework with efficient photocatalytic activity in aqueous and solid media

Cyrine Ayed, Wei Huang, Kai A. I. Zhang

Journal Article

A mini review on chemical fixation of CO 2 : Absorption and catalytic conversion into cyclic carbonates

Weili DAI, Chaktong AU, Shenglian LUO, Shuangfeng YIN,

Journal Article

Characterization and catalytic properties of mesoporous CuO/SBA-16 prepared by different impregnation

DONG Yongli, YUAN Fulong, ZHU Yujun, ZHAO Lina, CAI Zhicheng

Journal Article

GDF15 negatively regulates chemosensitivity via TGFBR2-AKT pathway-dependent metabolism in esophageal

Journal Article

Gradient-based compressive image fusion

Yang CHEN,Zheng QIN

Journal Article

Influence of Tensile Overload on Fatigue Life of LC4CS Al-alloy After Corrosion

Jiang Hui,Yang Xiaohua

Journal Article

Sediment environmental capacity of 137Cs in Daya Bay

ZHANG Junli, CHEN Jiajun, XU Jialin, LI Yuanxin, HUANG Naiming

Journal Article

Beneficial metabolic activities of inflammatory cytokine interleukin 15 in obesity and type 2 diabetes

Jianping Ye

Journal Article

The performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The

Journal Article

All-inorganic TiO/CsAgBiBr composite as highly efficient photocatalyst under visible light irradiation

Journal Article

evaluation of heavy metal contamination of sediment in Lake Dianchi by using modified AHP method and Cs

ZHANG Yan, GAO Xiang, ZHONG Zhenyu, PENG Buzhuo, DENG Xihai

Journal Article

Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles ofFe dissolution

Journal Article