Title:
PREPARATION METHOD FOR MESOPOROUS IRON DISULFIDE/SILICA MICROSPHERE COMPOSITE SOLID-PHASE IRON SOURCE AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/090846
Kind Code:
A1
Abstract:
A preparation method for a mesoporous iron disulfide/silica microsphere composite solid-phase iron source, and an application thereof, using a sol-gel process on a natural pyrite surface to form a mesoporous SiO2 microsphere structure and prepare a mesoporous FeS2/SiO2 microsphere composite solid-phase iron source, and combining same with H2O2 to form a new Fenton oxidation system, for use in removing ciprofloxacin from bodies of water. The mesoporous FeS2/SiO2 microsphere compound solid-phase iron source can both effectively control an iron release rate of a mineral, lowering loss of a mineral iron source itself and operating costs caused by high use of H2O2, and also avoid problems of secondary environmental pollution caused by high release of Fe3+. In addition, the present invention can also increase a number of active sites of contact between H2O2 and pollutants, further promoting full performance of a catalytic reaction and a ciprofloxacin degradation reaction in the system, finally realizing continuous and efficient ciprofloxacin removal.
Inventors:
DIAO ZENGHUI (CN)
XU XIANGRONG (CN)
ZUO LINZI (CN)
LIU JINJUN (CN)
HU YONGXIA (CN)
XU XIANGRONG (CN)
ZUO LINZI (CN)
LIU JINJUN (CN)
HU YONGXIA (CN)
Application Number:
PCT/CN2017/109485
Publication Date:
May 24, 2018
Filing Date:
November 06, 2017
Export Citation:
Assignee:
SOUTH CHINA SEA INST OCEANOLOGY CAS (CN)
International Classes:
C01G49/12; C02F1/72; C02F101/30
Foreign References:
| CN106564964A | 2017-04-19 | |||
| CN102602883A | 2012-07-25 | |||
| CN102989398A | 2013-03-27 | |||
| CN103157474A | 2013-06-19 | |||
| CN103143305A | 2013-06-12 |
Other References:
MIN XIA ET AL.: "Magnetically separable mesoporous silica nanocomposite and its application in Fenton catalysis", MICROPOROUS AND MESOPOROUS MATERIALS, vol. 145, no. 1-3, 24 May 2011 (2011-05-24), pages 217 - 223, XP028261888
WEI LIU ET AL.: "Hydrothermal Synthesis of FeS2 as a High-Efficiency Fenton Reagent to Degrade Alachlor via Superoxide-Mediated Fe(II)/Fe(III) Cycle", ACS APPLIED MATERIALS & INTERFACES, vol. 7, no. 51, 8 December 2015 (2015-12-08), pages 28534 - 28544, XP055605524
XU XIAOMEI ET AL.: "Research progress of Phenols Degradatiob with Fenton Catalyst Supported on Porous Materials", CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, vol. 33, no. 6, 31 December 2014 (2014-12-31), pages 1465 - 1474
WEI LIU ET AL.: "Hydrothermal Synthesis of FeS2 as a High-Efficiency Fenton Reagent to Degrade Alachlor via Superoxide-Mediated Fe(II)/Fe(III) Cycle", ACS APPLIED MATERIALS & INTERFACES, vol. 7, no. 51, 8 December 2015 (2015-12-08), pages 28534 - 28544, XP055605524
XU XIAOMEI ET AL.: "Research progress of Phenols Degradatiob with Fenton Catalyst Supported on Porous Materials", CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, vol. 33, no. 6, 31 December 2014 (2014-12-31), pages 1465 - 1474
Attorney, Agent or Firm:
GUANGZHOU KEYUE I.P. LAW OFFICE (CN)
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