Growth of calcium carbonate on non-covalently modified carbon nanotubes

被引：17

作者：

Tasis, Dimitrios

Pispas, Stergios

Galiotis, Costas

Bouropoulos, Nikolaos ^{[1
]}

机构：

[1] Univ Patras, Dept Mat Sci, Rion 26504, Greece

[2] Natl Hellen Res Fdn, Theoret & Phys Chem Inst, Athens 11635, Greece

[3] Inst Chem Engn & High Temperature Chem Proc, Fdn Res & Technol Hellas, GR-26504 Patras, Greece

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 28期

关键词：

carbon nanotubes; calcium carbonate; crystal growth; crystal morphology; amphiphilic block copolymers;

D O I：

10.1016/j.matlet.2007.03.101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The crystallization of calcium carbonate was investigated on pristine and non-covalently modified carbon nanotubes (CNTs) using the vapor diffusion technique in a calcium chloride solution. Non-covalent modification was accomplished by treating the carbon nanostructures with the amphiphilic copolymer poly(isoprene-b-acrylic acid). Calcium carbonate crystals grown on the surface and in the interstitial channels of CNT buckypapers were observed in both cases. Scanning electron microscopy analysis of the untreated CNTs showed the characteristic rhombohedral morphology of calcite crystals, while in the case of modified material spherical and ellipsoidal crystals, consisted of nanocrystallites, were observed. X-ray diffraction analysis showed the presence of calcite crystals in both cases. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：5044 / 5046

页数：3

共 18 条

[1] A CHEMICAL-MODEL FOR THE COOPERATION OF SULFATES AND CARBOXYLATES IN CALCITE CRYSTAL NUCLEATION - RELEVANCE TO BIOMINERALIZATION [J].