Enhanced degradation performances of plate-like micro/nanostructured zero valent iron to DDT

Journal of Hazardous Materials
Shenghong KangWeiping Cai

Abstract

Micro/nanostructured zero valent iron (MNZVI) is successfully mass-synthesized by ball-milling the industrially-reduced iron powders. The as-prepared MNZVI is plate-like in morphology with about 2-5μm in planar size and 35-55nm in thickness, and ∼16m(2)/g in specific surface area. Such plate-like MNZVI has demonstrated much higher degradation performances to DDT [or 1,1,1-trichloro-2,2-bis(4-chlorophenyl) ethane] in the aqueous solution than the commercial ZVI powders under acidic conditions. The MNZVI-induced DDT degradation is also much faster than the previously reported results. The time-dependent DDT removal amount can be described by the pseudo first-order kinetic model. Further experiments have shown that more than 50% of DDT can be mineralized in 20min and the rest is dechlorinated to DDX (the products with less chlorine). It has been revealed that the DDT degradation could be attributed to the acid assisted ZVI-induced mineralization and dechlorination. The mineralization process is dominant during the initial stage within 20min, and the dechlorination is the main reaction in the anaphase of the degradation. This work not only deepens understanding of DDT degradation but also could provide a highly efficient material f...Continue Reading

References

May 12, 2001·Journal of Hazardous Materials·J L ChenZ Li
Feb 12, 2002·Environmental Health Perspectives·Vladimir TurusovLorenzo Tomatis
May 25, 2002·Journal of Environmental Quality·H M GaberT A Machacek
Apr 29, 2004·Environmental Science & Technology·Sung Hee JooT David Waite
Jul 1, 2004·Journal of Hazardous Materials·F Murena, F Gioia
May 9, 2006·Chemosphere·Erica F PirnieLakhwinder S Hundal
Aug 22, 2008·Journal of Hazardous Materials·Wojciech PiechockiStanisław Gryglewicz
Nov 11, 2010·Journal of Agricultural and Food Chemistry·F CaoX M Li
Aug 22, 2012·Biodegradation·Simi SudharshanNanthi Bolan
Jan 29, 2014·The Science of the Total Environment·Dahai YanZuguang Wang

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