Specifications

Issue date: August 12, 2013
Publication year: 2013
Pages: 10935-10944
Language: English
ISSN: 09476539
E-ISSN: 15213765
CODEN: CEUJED
Document type: Journal article (JA)
Publisher: Wiley-VCH Verlag, P.O. Box 101161, Weinheim, D-69451, Germany
Abstract: Self-assembled poly(N-methylaniline)-lignosulfonate (PNMA-LS) composite
spheres with reactive silver-ion adsorbability were prepared from N-methylaniline by using
lignosulfonate (LS) as a dispersant. The results show that the PNMA-LS composite consisted of
spheres with good size distribution and an average diameter of 1.03-1.27 μm, and the spheres
were assembled by their final nanofibers with an average diameter of 19-34 nm. The PNMA-LS
composite spheres exhibit excellent silver-ion adsorption; the maximum adsorption capacity of
silver ions is up to 2.16 g g-1 at an adsorption temperature of 308 K. TEM and wide-angle X-ray
results of the PNMA-LS composite spheres after absorption of silver ions show that silver ions are
reduced to silver nanoparticles with a mean diameter of about 11.2 nm through a redox reaction
between the PNMA-LS composite and the silver ions. The main adsorption mechanism between
the PNMA-LS composite and the silver ions is chelation and redox adsorption. In particular, a
ternary PNMA-LS-Ag composite achieved by using the reducing reaction between PNMA-LS
composite spheres and silver ions can be used as an antibacterial material with high bactericidal
rate of 99.95 and 99.99 % for Escherichia coli and Staphylococcus aureus cells, respectively. ©
2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Number of references: 57
Main heading: Spheres
Controlled terms: Adsorption - Bacteria - Escherichia coli - Metal
ions - Polymerization - Redox reactions - Self assembly - Silver
Uncontrolled terms: Adsorption capacities - Adsorption mechanism - Adsorption
temperature - Antibacterial materials - Antimicrobial materials - Lignosulfonates - Silver
nanoparticles - Staphylococcus aureus
Classification code: 951 Materials Science - 815.2 Polymerization - 802.3 Chemical
Operations - 802.2 Chemical Reactions - 801.2 Biochemistry - 801 Chemistry - 631 Fluid
Flow - 547.1 Precious Metals - 533 Ore Treatment and Metal Refining
DOI: 10.1002/chem.201204113
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
13.
Accession number: 20132716472288
Title: Rating the customer requirements based on DEMATEL and entropy
Authors: Mingshun, Yang1 ; Ting, Yu2 ; Yanjie, Liang2 ; Yubo, Zhang2/杨明顺;;;;
Author affiliation:
1 Department of Mechanical, Manufacturing and Automation, School of Mechanical and
Precision Instrument Engineering, Xi'an University of Technology (XAUT), Xi'an, China