Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures.

Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures. Abstract Text:

Jian Hua Chen,Qing Lin Liu,Jun Fang,Ai Mei Zhu,Qiu Gen Zhang,Jian Hua Chen,Qing Lin Liu,Jun Fang,Ai Mei Zhu,Qiu Gen Zhang,Jian Hua Chen,Qing Lin Liu,Jun Fang,Ai Mei Zhu,Qiu Gen Zhang,

Chitosan-silica hybrid membranes (CSHMs) were prepared by cross-linking chitosan (CS) with 3-aminopropyl-triethoxysilane (APTEOS). The dynamic behaviors of the CS membrane and the CSHM were investigated in pervaporation (PV) of methanol/dimethyl carbonate (MeOH/DMC) mixtures. The membranes were characterized by X-ray diffraction (XRD), contact angle meter, scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). The transition state of PV processes were studied. During the PV processes, the amorphous region of the membranes increases and the contact angle between MeOH and the membrane decreases within a range of operating time and then remains almost constant implying a reconstruction occurred on the membrane surface. The silica is well distributed in the CSHM matrix and the thermal stability of the CSHM is enhanced. The time for a PV process to reach a steady state decreases with increasing MeOH concentration or feed temperature, and it is longer for the CSHM than the CS membrane under the same operating condition. Swelling experiments show that the degree of swelling (DS) is greatly depressed by cross-linking CS with APTEOS. Sorption data indicate that the selectivity of solubility and diffusion of the CSHM are greatly improved over the CS membrane. The CSHM presents superior separation behaviors over other membranes with a flux of 1265 g/(hm(2)) and separation factor of 30.1 in PV separation of 70 wt% MeOH in feed at 50 degrees C.

Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures. Publishing Authors By Initials

JH Chen,QL Liu,J Fang,AM Zhu,QG Zhang,JH Chen,QL Liu,J Fang,AM Zhu,QG Zhang,JH Chen,QL Liu,J Fang,AM Zhu,QG Zhang,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of colloid and interface science

VOLUME: 316

Page Numbers: 580-8

Journal Abbreviation:

ISSN: 0021-9797

DAY: 14

MONTH: 09

YEAR: 2007

Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 43125

Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures.

AFFILIATION: Department of Chemical and Biochemical Engineering, College of Chemistry & Chemical Engineering, Xiamen University, Xiamen 361005, China.

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Colloid Interface Sci

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Composite hybrid membrane of chitosan-silica in pervaporation separation of MeOH/DMC mixtures Related Publications

• A comparative study on the intercuspal occlusion among TMD patients, malocclusion patients and university students.
• Effect of retinoblastoma gene on human osteosarcoma cell line OS732.
• Enhanced antioxidant and cytoprotective abilities of vitamin E succinate is associated with a rapid uptake advantage in rat hepatocytes and mitochondria.
• Intervention by azithromycin on bleomycin-induced lung injury in rats and its mechanisms.
• Method development of adsorbed stationary phase open tubular capillary electrochromatography.
• Supercritical fluid CO2 extraction of colchicine from colchicine Autumnele liliaceae.
• Vascular endothelial growth factor gene expression in patients' ischemic skeletal muscle with diabetic foot.
• [A case of hypodermiasis with empyema]
• [Analysis of hepatitis G virus genotypes in some areas of China]
• [Autologous dendritic cells eliciting cytotoxicity of bone marrow cells against chronic granulocytic leukemia]
• [Changes of human recombination bone morphogenetic protein-2 in bone and marrow in tail suspended rats]
• [Cloning of the mouse Doc-1R gene by genomic walking]
• [Construction of recombinant adenoviruses carrying human urokinase-type plasminogen activator and its expression in hepatic stellate cells in vitro]
• [Effect of inhibition of telomerase activity on cisplatin-induced apoptosis in K562 cells]
• [Effects of electrical stimulation of lateral hypothalamic area on gastric ischemia-reperfusion injury in rats]
• [Fatal complications in traffic accident injury]
• [Indomethacin induces apoptosis of K562 cells through activation of caspases and elevation of intracellular free calcium]
• [Infection and replication of hepatitis B virus and its clearance mechanism: an overview]
• [Mechanisms underlying dopaminergic neurotoxicity in ischemic cerebral damage]
• [Physiological and pathologic implications for zero-stress state of the esophagus]
• [Protein kinases and Alzheimer's disease]
• [Retroperitoneal laparoscopic unroofing of renal cyst: use of close method]
• [Risk of leukemia among medical X-ray workers in China between 1950 and 1995]
• [Studies on association between lipoprotein lipase gene polymorphisms of Pvu II site and hypertriglyceridemics in Chinese]
• [Study on automatic segmentation of color images applied to blood cells]
• [Study on high performance liquid chromatography/indirect photometric detection of fosfomycin with acridine as detection reagent]
• [Study on the application of number fluorescence density in detecting autoantibodies titer]
• [The effects of surface morphology of calcium phosphate ceramics on apatite formation in dynamic SBF]
• [Transforming growth factor beta(1) and bone morphogenetic protein 2 induce the differentiation of odontoblasts in vitro]
• [Vector propagation algorithm based ECG simulation of bundle branch block]