Chitosan stabilised nanozero-valent iron for the catalytic reduction of p-nitrophenol

Author

Hongfei Lu ; Xueliang Qiao ; Wei Wang ; Fatang Tan ; Zunqi Xiao ; Jianguo Chen

Author_Institution

State Key Lab. of Mater. Process. & Die & Mould Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

9

Issue

7

fYear

2014

fDate

Jul-14

Firstpage

446

Lastpage

450

Abstract

Chitosan stabilised nanozero-valent iron (CNZVI) is proposed as a catalyst because of its simple preparation and high activity. The catalytic activity of CNZVI was investigated using the reduction reaction of p-nitrophenol (p-NP) by NaBH₄. The result indicated that CNZVI possessed good catalytic activity, and the rate constant (k) was 2.45 × 10^-3 s^-1. In addition, CNZVI can be easily separated by an external magnetic field from aqueous solution, and it could also be repeatedly applied for the reduction of p-NP for at least five successive cycles with stable catalytic activity. All of these results suggest that CNZVI could be used as an excellent catalyst for the catalytic reduction of p-NP by NaBH₄.

Keywords

catalysis; catalysts; iron; polymers; reaction rate constants; reduction (chemical); Fe; aqueous solution; catalyst; catalytic reduction; chitosan stabilised nanozero-valent iron; external magnetic field; p-nitrophenol; rate constant; stable catalytic activity;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2014.0117

Filename

6869203