Superparamagnetic Behaviour and Surface Analysis of Fe3O4/PPY/CNT Nanocomposites

被引：21

作者：

Rajagukguk, Juniastel ^{[1
]}

Simamora, Pintor ^{[1
]}

Saragih, C. S. ^{[1
]}

Abdullah, Hairus ^{[2
]}

Gultom, Noto Susanto ^{[1
]}

Imaduddin, Agung ^{[3
]}

机构：

[1] Univ Negeri Medan, Fac Math & Nat Sci, Dept Phys, Kabupaten Deli Serdang 20221, Sumatera Utara, Indonesia

[2] Univ Prima Indonesia, Dept Ind Engn, Medan, Indonesia

[3] Indonesian Inst Sci, Res Ctr Met Mat, Serpong 15310, Indonesia

来源：

JOURNAL OF NANOMATERIALS | 2020年 / 2020卷

关键词：

NANOPARTICLES; ADSORPTION;

D O I：

10.1155/2020/8174871

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The superparamagnetic property of nanomaterials such as Fe3O4 has been considered to be promising for various applications. In this paper, Fe3O4/PPY/CNT nanocomposites were synthesized with utilizing natural iron sand by a coprecipitation method. The as-precipitated Fe3O4 NPs were combined with carbon nanotubes (CNTs) using conductive polypyrrole (PPY) as linking agents. The Fe3O4/PPY/CNT nanocomposites were systematically characterized by FE-SEM, EDS, XRD, BET, and FTIR. Furthermore, the effects of CNTs on magnetic and thermal properties of nanocomposites were investigated by VSM and thermal gravimetric analysis (TGA), respectively. The composites exhibited significant decrease of coercivity value with the content of CNTs increasing. The VSM result confirmed that Fe3O4/PPY/CNT nanocomposites were superparamagnetic. It was found that by increasing the amounts of CNTs, the magnetization of Fe3O4/PPY/CNT nanocomposites gradually decreased. The addition of CNTs is intended to improve the mesoporous property as proved by BET analysis which has the potential application as a nanocatalyst.

引用

页数：6

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