Title:
METHOD OF PREPARING NANO-SCALE ZERO-VALENT IRON AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO2017008204
Kind Code:
A1
Abstract:
A method of preparing a nano-scale zero-valent iron, comprising the following steps: (1) adding, in an inert atmosphere, polyethylene glycol and deoxy ethanol to an aqueous solution of ferrous salt, and mixing; (2) mixing the solution obtained in step (1) with an alkaline aqueous solution containing boron hydride and performing a reduction reaction; (3) after the reduction reaction in (2) is complete, obtaining a precipitate; and (4) vacuum drying the precipitate to obtain nano-scale zero-valent iron. A surfactant combined with the prepared nano-scale zero-valent iron can markedly improve remediation efficiency of soil polluted with volatile organic compounds (VOCs).
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Inventors:
SUN YIFEI (CN)
TIAN HUIFANG (CN)
ZHU TIANLE (CN)
TIAN HUIFANG (CN)
ZHU TIANLE (CN)
Application Number:
PCT/CN2015/083773
Publication Date:
January 19, 2017
Filing Date:
July 10, 2015
Export Citation:
Assignee:
BEIHANG UNIVERCITY (CN)
International Classes:
B22F9/24; B09C1/08
Domestic Patent References:
| WO2002040410A1 | 2002-05-23 |
Foreign References:
| US6664298B1 | 2003-12-16 | |||
| CN104027926A | 2014-09-10 |
Other References:
LI, CHENHUA ET AL.: "yèxi? ng zhì bèi nàm? ti? huányuánshu? zh? ng liùjiàgède yánji?", CONFERENCE ON ENVIRONMENTAL POLLUTION AND PUBLIC HEALTH (CEPPH2011, 16 September 2011 (2011-09-16), pages 921
LI, HAIYING ET AL.: "Study on Denitrification by Synthesizing Nanoscale Zero-valent Iron", ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS NANKAIENSIS, vol. 39, no. 1, 28 February 2006 (2006-02-28), pages 9
HU , CUNJIE ET AL., PREPARATION OF NANO-FE AND ITS DEGRADATION EFFICIENCY CHEMICAL WORLD, 31 July 2007 (2007-07-31), pages 389
SHIN MIN-CHUL ET AL.: "Effect of Surfactant on Reductive Dechlorination of Trichloroethylene bu zero-valent iron", DESALINATION, vol. 223, no. 3, 1 March 2008 (2008-03-01), pages 300, XP022434947
LI, HAIYING ET AL.: "Study on Denitrification by Synthesizing Nanoscale Zero-valent Iron", ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS NANKAIENSIS, vol. 39, no. 1, 28 February 2006 (2006-02-28), pages 9
HU , CUNJIE ET AL., PREPARATION OF NANO-FE AND ITS DEGRADATION EFFICIENCY CHEMICAL WORLD, 31 July 2007 (2007-07-31), pages 389
SHIN MIN-CHUL ET AL.: "Effect of Surfactant on Reductive Dechlorination of Trichloroethylene bu zero-valent iron", DESALINATION, vol. 223, no. 3, 1 March 2008 (2008-03-01), pages 300, XP022434947
Attorney, Agent or Firm:
MUDA INTELLECTUAL PROPERTY FIRM (CN)
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