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Adsorption of humic acid from aqueous solution on bilayer hexadecyltrimethyl ammonium bromide-modifiedzeolite

Yanhui ZHAN, Jianwei LIN, Yanling QIU, Naiyun GAO, Zhiliang ZHU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 65-75 doi: 10.1007/s11783-010-0277-z

Abstract: Surfactant-modified natural zeolites (SMNZ) with different coverage types were prepared by loading hexadecyltrimethylammonium bromide (HTAB) onto the surface of a natural zeolite.Results indicate that the adsorbent SMNZ exhibited a higher affinity toward HA than the natural zeoliteCalculated maximum HA adsorption capacities for SMNZ with bilayer HTAB coverage at pH 5.5 and 7.5 wereResults show that HTAB-modified natural zeolite is a promising adsorbent for removal of HA from aqueous

Keywords： bilayer surfactant-modified zeolite     hexadecyltrimethyl ammonium bromide (HTAB)     adsorption    

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Organosilane surfactant-assisted synthesis of mesoporous SSZ-39 zeolite with enhanced catalytic performance

Hao Xu, Chi Lei, Qinming Wu, Qiuyan Zhu, Xiangju Meng, Daniel Dai, Stefan Maurer, Andrei-Nicolae Parvulescu, Ulrich Müller, Fengshou Xiao

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 267-274 doi: 10.1007/s11705-019-1845-9

Abstract: SSZ-39 zeolite with AEI framework structure is a good catalyst candidate for the methanol-to-olefinsHowever, the diffusion limitation and coke formation often results in fast deactivation of the SSZ-39 zeoliteOne solution for this challenge is to introduce mesoporosity in the SSZ-39 zeolite.Herein, we report the synthesis of mesoporous SSZ-39 zeolite using an organosilane surfactant, , -dimethylThe results show that the mesoporous SSZ-39 zeolite has high crystallinity, meso/microporosity, high

Keywords： SSZ-39 zeolite     mesopores     organosilane surfactant     MTO reaction     soft template     mass transfer    

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The effect of capping with natural and modified zeolites on the release of phosphorus and organic contaminants

Shujuan SUN, Lei WANG, Suiliang HUANG, Teng TU, Hongwen SUN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 308-313 doi: 10.1007/s11705-010-0561-2

Abstract: A microcosm system that included river sediment, water and different zeolite capping materials (naturalzeolite, surfactant-modified zeolite (SMZ), or aluminum modified zeolite (AMZ)) was designed to studyHowever, for controlling the release of phenol from the sediment, aluminum modified zeolite was the mostefficient material, whereas no effects were observed when natural zeolite or SMZ were used.The different capabilities of the zeolite materials for controlling the release of different organic

Keywords： sediment     capping     natural zeolite     modified zeolite     phosphorus    

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Ionic strength directed self-assembled polyelectrolyte single-bilayer membrane for low-pressure nanofiltration

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 699-708 doi: 10.1007/s11705-021-2093-3

Abstract: procedure is described for the preparation of nanofiltration membranes consisting of only a single bilayerinfluence of background ionic strength as well as membrane substrate properties on the formation of single-bilayer

Keywords： layer-by-layer self-assembly     single bilayer     nanofiltration membrane     desalination    

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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: With 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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The construction of pseudo-Janus silica/surfactant assembly and their application to stabilize Pickering

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1101-1113 doi: 10.1007/s11705-021-2095-1

Abstract: findings of this study could help to better understand the construction mechanism of pseudo-Janus silica/surfactant

Keywords： Janus nanoparticles     surfactant     double phase inversion     self-assembly     enhanced oil recovery    

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Progress in use of surfactant in nearly static conditions in natural gas hydrate formation

Zhen PAN, Yi WU, Liyan SHANG, Li ZHOU, Zhien ZHANG

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 463-481 doi: 10.1007/s11708-020-0675-2

Abstract: Besides, the factors influencing surfactant-promoted hydrate formation, including the type, concentration, and structure of the surfactant, are also described.establishing kinetic and thermodynamic models to simulate the factors affecting the formation of hydrate in surfactant-containing

Keywords： gas hydrate     kinetic hydrate promoter     compounding     model     surfactant     mechanism    

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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-zeoliteActivated carbon was obtained from pine cone chemically activated using ZnCl and modified by H PO .Natural 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 them

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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Stability of three-dimensional printable foam concrete as function of surfactant characteristics

Frontiers of Structural and Civil Engineering   Pages 935-947 doi: 10.1007/s11709-023-0964-z

Abstract: The extrusion process likely affects the foam stability which necessitates the investigation into surfactantTo address this research gap, the effects of surfactant characteristics on the stability, extrudabilitysodium lauryl sulfate stabilized with carboxymethyl cellulose sodium salt, and natural-based hingot surfactantThe results were then correlated with surfactant qualities, such as viscosity and surface tension, toBased on the experimental results, surfactant solu1tion with viscosity exceeding 5 mPa·s and surface

Keywords： foam concrete     3D printable concrete     stability     rheology     air void microstructure    

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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/mesoporous

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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Title Author Date Type Operation

Adsorption of humic acid from aqueous solution on bilayer hexadecyltrimethyl ammonium bromide-modifiedzeolite

Yanhui ZHAN, Jianwei LIN, Yanling QIU, Naiyun GAO, Zhiliang ZHU

Journal Article

Organosilane surfactant-assisted synthesis of mesoporous SSZ-39 zeolite with enhanced catalytic performance

Hao Xu, Chi Lei, Qinming Wu, Qiuyan Zhu, Xiangju Meng, Daniel Dai, Stefan Maurer, Andrei-Nicolae Parvulescu, Ulrich Müller, Fengshou Xiao

Journal Article

The effect of capping with natural and modified zeolites on the release of phosphorus and organic contaminants

Shujuan SUN, Lei WANG, Suiliang HUANG, Teng TU, Hongwen SUN

Journal Article

Ionic strength directed self-assembled polyelectrolyte single-bilayer membrane for low-pressure nanofiltration

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

The construction of pseudo-Janus silica/surfactant assembly and their application to stabilize Pickering

Journal Article

Progress in use of surfactant in nearly static conditions in natural gas hydrate formation

Zhen PAN, Yi WU, Liyan SHANG, Li ZHOU, Zhien ZHANG

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

Stability of three-dimensional printable foam concrete as function of surfactant characteristics

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