Degradation of pentachlorophenol by nanoscale Fe and Ni/Fe particles

Author

Cheng, Rong ; Li, Bin ; Zeng, Fangang ; Qi, Lu ; Hongchen Wang ; Wang, Hongchen

Author_Institution

Sch. of Environ. & Natural Resources, Renmin Univ. of China, Beijing, China

fYear

2011

fDate

24-26 June 2011

Firstpage

3042

Lastpage

3045

Abstract

Pentachlorophenol (PCP), a notoriously recalcitrant and toxic organic contaminant, was investigated for its degradation with nanoscale Fe and Ni/Fe particles. Compared with the bare nano Fe, the bimetallic Ni/Fe nanoparticles exhibited much higher reactivity. The rate of PCP transformation can be described by pseudo first-order kinetics, and the apparent rate constants were calculated to be 0.04 and 1.19 h^-1 with the nanoscale Fe and Ni/Fe, respectively. The enhanced performance of the bimetallic nanoparticles may be attributed to the increased of surface area, generation, storage and activation of hydrogen, and also unique nano- and subnano- scale structures formed on the nanoparticle surface.

Keywords

chemical technology; contamination; iron; nanoparticles; organic compounds; reaction rate constants; toxicology; Fe; NiFe; PCP transformation; bimetallic nanoparticles; degradation; enhanced performance; hydrogen activation; nanoparticle surface; nanoscale particles; notoriously recalcitrant organic contaminant; pentachlorophenol; pseudo first-order kinetics; rate constants; storage; subnano-scale structures; surface area; toxic organic contaminant; Chemicals; Degradation; Iron; Kinetic theory; Nanoparticles; Nanoscale devices; Nickel; chlorinated phenol; kinetics; nanoparticles; remediation; zero valent iron;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9172-8

Type

conf

DOI

10.1109/RSETE.2011.5964956

Filename

5964956