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Low-temperature CO oxidation over Au-doped 13X-type zeolite catalysts: preparation and catalytic activity

Qing YE, Donghui LI, Jun ZHAO, Jiansheng ZHAO, Tianfang KANG, Shuiyuan CHENG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 497-504 doi: 10.1007/s11783-011-0256-z

Abstract: Au-supported 13X-type zeolite (Au/13X) was synthesized using a common deposition–precipitation (DP) methodcatalytic activity, the relationship between different the preparation conditions and gold particles in 13Xzeolite was analyzed using X-ray diffraction, TEM and XPS.The activity of Au/13X catalysts in CO oxidation was dependent on the chloroauric acid concentration.Furthermore, a pH of 5 or 6 generated greater amounts of Au loading and smaller Au particles on 13X than

Keywords： 13X-type zeolite     CO oxidation     gold solution     pH     calcination temperature    

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Layer-like FAU-type zeolites: A comparative view on different preparation routes

Bastian Reiprich, Tobias Weissenberger, Wilhelm Schwieger, Alexandra Inayat

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 127-142 doi: 10.1007/s11705-019-1883-3

Abstract: The creation of intergrown layer-like zeolite crystals is one route to form hierarchical zeolites.Faujasite-type (FAU-type) zeolites are among the industrially most important zeolites and the implementationHowever, a very recent approach is the synthesis of layer-like FAU-type zeolite crystals assembled inConcluding, a comparison, including powder X-ray diffraction, scanning and transmission electron microscopy

Keywords： FAU     hierarchical zeolite     layer-like morphology    

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Factors affecting the formation of zeolite seed layers and the effects of seed layers on the growth ofzeolite silicalite-1 membranes

ZHANG Xiongfu, WANG Jinqu, LIU Hai′ou, WANG Anjie

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 172-177 doi: 10.1007/s11705-007-0032-6

Abstract: The scanning electron microscopy (SEM) and X-ray diffraction (XRD) characterizations indicate that aWith this method of seeded secondary synthesis of zeolite membranes, the quality of a membrane mainly

Keywords： silicalite-1     α-A1O     growth     seeding ethanol     quality    

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RESPONSE OF WHEAT COMPOSITE CROSS POPULATIONS TO DISEASE AND CLIMATE VARIATION OVER 13 GENERATIONS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 400-415 doi: 10.15302/J-FASE-2021394

Abstract:

Since the F5 (2005), three winter wheat composite cross populations (CCPs) based on germplasm specifically suitable for low-input conditions were subjected to natural selection under organic and conventional management. In the F6, each CCP was divided into two parallel populations (12 CCPs in total) and maintained continuously until 2018. Commonly used modern cultivars with different disease susceptibilities were grown alongside to assess the agronomic performance of the CCPs. The organically managed CCPs were comparable in yield and foliar disease resistance to two continuously used reference cultivars, Achat and Capo. In contrast, under conventional management the cv. Capo outyielded the CCPs (Achat was not tested), highlighting the importance of parental cultivar choice for specific management systems. The CCPs were found to be moderately resistant to brown rust and even to the newly emerged stripe rust races prevalent in Europe since 2011. Differences between the CCPs were mainly due to parental genetic background and were significant in the first five generations, but were no longer so in the last five generations. In addition, these differences tended to vary depending on the experimental year and the environmental stresses present. In conclusion, the CCPs despite being derived from older cultivars are able to compete with more recently released reference cultivars under organic farming practices and represent a dynamic germplasm resource.

 

Keywords： evolutionary breeding     heterogeneous crop population     management system    

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FGF13 suppresses acute myeloid leukemia by regulating bone marrow niches

Frontiers of Medicine 2022, Volume 16, Issue 6,   Pages 896-908 doi: 10.1007/s11684-022-0944-z

Abstract: Fibroblast growth factor 13 (FGF13) is aberrantly expressed in multiple cancer types, suggesting itsResults showed that FGF13 was lowly expressed in patients with AML and that its elevated expression wasUnivariate and multivariate Cox regression analyses identified FGF13 as an independent prognostic factorA prognostic nomogram integrating FGF13 and clinicopathologic variables was constructed to predict 1-The xenograft study indicated that FGF13 overexpression prolonged the survival of recipient mice.

Keywords： acute myeloid leukemia     FGF13     prognosis     immune-related genes     bone marrow niches    

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CuO/zeolite catalyzed oxidation of gaseous toluene under microwave heating

Longli BO, Jianbo LIAO, Yucai ZHANG, Xiaohui WANG, Quan YANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 395-402 doi: 10.1007/s11783-012-0417-8

Abstract: typical toxic volatile organic compound, was oxidized through a fixed bed reaction chamber containing zeolite-supportedcopper oxide (CuO/zeolite) catalyst mixed with silicon carbide (SiC), an excellent microwave-absorbing

Keywords： microwave     catalytic oxidation     CuO/zeolite catalyst     silicon carbide (SiC)     toluene    

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Effects of natural zeolite and sulfate ions on the mechanical properties and microstructure of plastic

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 86-98 doi: 10.1007/s11709-021-0793-x

Abstract: Natural zeolite (NZ) is a relatively abundant mineral resource and in this research, the microstructureResults showed that increasing the zeolite content decreases the unconfined strength, elastic modulusHowever, at the later ages, increasing the zeolite content increases unconfined strength as well as the

Keywords： plastic concrete     sulfate resistance     natural zeolite     triaxial compression test     SEM     permeability    

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Synthesis, physicochemical characterizations and catalytic performance of Pd/carbon-zeolite and Pd/carbon-CeO

Zeinab JAMALZADEH, Mohammad HAGHIGHI, Nazli ASGARI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 365-381 doi: 10.1007/s11783-013-0520-5

Abstract: work, xylene removal from waste gas streams was investigated via catalytic oxidation over Pd/carbon-zeoliteNatural zeolite of clinoptilolite was modified by acid treatment with HCl, while nano-ceria was synthesizedMixed supports of carbon-zeolite and carbon-ceria were prepared and palladium was dispersed over themThe prepared samples were characterized by X-ray diffraction (XRD), field emission scanning electron

Keywords： Pd/carbon-CeO2     Pd/carbon-zeolite     pine cone     ZnCl2     catalytic oxidation     xylene    

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Photocatalytic degradation of omethoate using NaY zeolite-supported TiO

Dishun ZHAO, Jialei WANG, Zhigang ZHANG, Juan ZHANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 206-210 doi: 10.1007/s11705-009-0053-4

Abstract: The degradation of omethoate was conducted using H O as oxidant, TiO supported on NaY zeolite as photocatalystThe effect of the calcination temperature of the photocatalyst, the amount of TiO loaded on NaY zeoliteThe results show that TiO /NaY zeolite photocatalyst prepared by sol-gel method had good photocatalysisfollows: the calcination temperature of the photocatalyst is 550°C,the amount of TiO loaded on NaY zeolite

Keywords： TiO2     NaY zeolite     photocatalytic degradation     omethoate    

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Catalytic fast pyrolysis of Kraft lignin with HZSM-5 zeolite for producing aromatic hydrocarbons

Xiangyu LI, Lu SU, Yujue WANG, Yanqing YU, Chengwen WANG, Xiaoliang LI, Zhihua WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 3,   Pages 295-303 doi: 10.1007/s11783-012-0410-2

Abstract: Catalytic fast pyrolysis (CFP) of Kraft lignins with HZSM-5 zeolite for producing aromatics was investigated

Keywords： lignin     catalytic fast pyrolysis     HZSM-5     zeolite     aromatic hydrocarbon    

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Atomistic simulations for adsorption and separation of flue gas in MFI zeolite and MFI/MCM-41 micro/mesoporous

Shengchi ZHUO, Yongmin HUANG, Jun HU, Honglai LIU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 264-273 doi: 10.1007/s11705-010-1007-6

Abstract: Adsorption of pure CO and N and separation of CO /N mixture in MFI zeolite and MFI/MCM-41 micro/mesoporousA bimodal pore size distribution is observed in MFI/MCM-41 from simulated small- and broad-angle X-ray

Keywords： adsorption     diffusion     CO2     flue gas     zeolite     micro/mesoporous composite    

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Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 248-257 doi: 10.1007/s11705-019-1853-9

Abstract: Hierarchical ZSM-5 zeolite with radial mesopores is controllably synthesized using piperidine in a NaOHThe piperidine molecules enter the zeolite micropores and protect the zeolite framework from extensiveIn this manner, radial mesopores are formed in the ZSM-5 zeolite with a maximal preservation of the microporesThe optimal hierarchical ZSM-5 zeolite, prepared with a molar ratio of piperidine to zeolite of 0.03,Compared to the parent zeolite, the hierarchical ZSM-5 zeolite possesses more accessible acid sites and

Keywords： hierarchical ZSM-5 zeolite     protective desilication     piperidine     radial mesopores     benzene alkylation    

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Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 54-61 doi: 10.1007/s11783-013-0493-4

Abstract: A novel method for the synthesis of zeolite was developed in this paper.Seawater salinity was varied from 32 to 88 for zeolite crystallization during the hydrothermal processThe results show that seawater salinity plays an important role in zeolite synthesis with CFA duringThe products were a mixture of NaX zeolite and hydroxysodalite; seawater salinity more strongly affectedthe crystallization than the type and chemical composition of the zeolites.

Keywords： coal fly ash (CFA)     seawater salinity     zeolite synthesis    

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Human health ambient water quality criteria for 13 heavy metals and health risk assessment in Taihu Lake

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1475-6

Abstract:

• The concentrations of 13 heavy metals in Taihu Lake were analyzed.

Keywords： Heavy metals     Human health ambient water quality criteria     Taihu Lake     Health risk assessment     Contribution rate    

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Co-pyrolysis of sludge and kaolin/zeolite in a rotary kiln: Analysis of stabilizing heavy metals

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1488-1

Abstract:

• Adding kaolin/zeolite promotes the formation of stable heavy metals

Keywords： Co-pyrolysis     Sewage sludge     Heavy metals     Rotary kiln     Immobilization mechanism    

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Title Author Date Type Operation

Low-temperature CO oxidation over Au-doped 13X-type zeolite catalysts: preparation and catalytic activity

Qing YE, Donghui LI, Jun ZHAO, Jiansheng ZHAO, Tianfang KANG, Shuiyuan CHENG

Journal Article

Layer-like FAU-type zeolites: A comparative view on different preparation routes

Bastian Reiprich, Tobias Weissenberger, Wilhelm Schwieger, Alexandra Inayat

Journal Article

Factors affecting the formation of zeolite seed layers and the effects of seed layers on the growth ofzeolite silicalite-1 membranes

ZHANG Xiongfu, WANG Jinqu, LIU Hai′ou, WANG Anjie

Journal Article

RESPONSE OF WHEAT COMPOSITE CROSS POPULATIONS TO DISEASE AND CLIMATE VARIATION OVER 13 GENERATIONS

Journal Article

FGF13 suppresses acute myeloid leukemia by regulating bone marrow niches

Journal Article

CuO/zeolite catalyzed oxidation of gaseous toluene under microwave heating

Longli BO, Jianbo LIAO, Yucai ZHANG, Xiaohui WANG, Quan YANG

Journal Article

Effects of natural zeolite and sulfate ions on the mechanical properties and microstructure of plastic

Journal Article

Synthesis, physicochemical characterizations and catalytic performance of Pd/carbon-zeolite and Pd/carbon-CeO

Zeinab JAMALZADEH, Mohammad HAGHIGHI, Nazli ASGARI

Journal Article

Photocatalytic degradation of omethoate using NaY zeolite-supported TiO

Dishun ZHAO, Jialei WANG, Zhigang ZHANG, Juan ZHANG

Journal Article

Catalytic fast pyrolysis of Kraft lignin with HZSM-5 zeolite for producing aromatic hydrocarbons

Xiangyu LI, Lu SU, Yujue WANG, Yanqing YU, Chengwen WANG, Xiaoliang LI, Zhihua WANG

Journal Article

Atomistic simulations for adsorption and separation of flue gas in MFI zeolite and MFI/MCM-41 micro/mesoporous

Shengchi ZHUO, Yongmin HUANG, Jun HU, Honglai LIU

Journal Article

Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Journal Article

Effect of seawater salinity on the synthesis of zeolite from coal fly ash

Yanqing YU, Xiaoliang LI, Xiaolan ZOU, Xiaobin ZHU

Journal Article

Human health ambient water quality criteria for 13 heavy metals and health risk assessment in Taihu Lake

Journal Article

Co-pyrolysis of sludge and kaolin/zeolite in a rotary kiln: Analysis of stabilizing heavy metals

Journal Article