Title:
ANION REMOVAL USING TWO-DIMENSIONAL MATERIAL AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/111364
Kind Code:
A1
Abstract:
Provided is a method for preparing an anion adsorbent, comprising the steps of: mixing two or more metal salts to prepare a stacking structure in which cationic compound layers and anionic compound layers comprising anions and water of crystallization are alternately stacked on one another; subjecting the stacking structure to primary heat treatment to expand a gap between the cationic compound layers, thereby preparing a preliminary anion adsorbent; and subjecting the preliminary anion adsorbent to secondary heat treatment to remove the anions and the water of crystallization of the anionic compound layers, except that at least one of the anions remains, thereby preparing an anion adsorbent.
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Inventors:
CHOA YONG-HO (KR)
LEE HAN-SEUNG (KR)
CHO HONG-BAEK (KR)
SONG YOSEB (KR)
YOO SU-BEAN (KR)
PARK JI YOUNG (KR)
LEE HAN-SEUNG (KR)
CHO HONG-BAEK (KR)
SONG YOSEB (KR)
YOO SU-BEAN (KR)
PARK JI YOUNG (KR)
Application Number:
PCT/KR2018/015499
Publication Date:
June 04, 2020
Filing Date:
December 07, 2018
Export Citation:
Assignee:
IUCF HYU ERICA CAMPUS (KR)
International Classes:
B01J20/30; B01J20/02; B01J20/04; C02F1/28; C02F101/18; C02F103/16; C02F103/20
Foreign References:
| KR101415656B1 | 2014-07-08 |
Other References:
RICHETTA, M: "Characteristics, Preparation Routes and Metallurgical Applications of LDHs: An Overview", JOURNAL OF MATERIAL SCIENCES & ENGINEERING, vol. 6, no. 6, 29 November 2017 (2017-11-29), pages 1000397, XP055641512
BENITO, P. ET AL.: "Effect of post-synthesis microwave-hydrothermal treatment on th e properties of layered double hydroxides and related materials", APPLIED CLAY SCIENCE, vol. 48, no. 1-2, 30 December 2009 (2009-12-30), pages 218 - 227, XP026918057
WANG, J. ET AL.: "Arsenic removal from water/wastewater using layered double hydroxide derived adsorbents, a critical review", RSC ADVANCES, vol. 8, no. 40, 20 June 2018 (2018-06-20), pages 22694 - 22709, XP055641517
HE, W ET AL.: "Inorganic layered ion-exchangers for decontamination of toxic metal ions in aquatic systems", JOURNAL OF MATERIALS CHEMISTRY A, vol. 5, no. 37, 25 August 2017 (2017-08-25), pages 19593 - 19606, XP055641519
SHIMAMURA, A. ET AL.: "Direct observation of grafting interlayer phosphate in Mg/A1 layered double hydroxid", JOURNAL OF SOLID STATE CHEMISTRY, vol. 186, 7 December 2011 (2011-12-07), pages 116 - 123, XP028448015, DOI: 10.1016/j.jssc.2011.11.034
See also references of EP 3685914A4
BENITO, P. ET AL.: "Effect of post-synthesis microwave-hydrothermal treatment on th e properties of layered double hydroxides and related materials", APPLIED CLAY SCIENCE, vol. 48, no. 1-2, 30 December 2009 (2009-12-30), pages 218 - 227, XP026918057
WANG, J. ET AL.: "Arsenic removal from water/wastewater using layered double hydroxide derived adsorbents, a critical review", RSC ADVANCES, vol. 8, no. 40, 20 June 2018 (2018-06-20), pages 22694 - 22709, XP055641517
HE, W ET AL.: "Inorganic layered ion-exchangers for decontamination of toxic metal ions in aquatic systems", JOURNAL OF MATERIALS CHEMISTRY A, vol. 5, no. 37, 25 August 2017 (2017-08-25), pages 19593 - 19606, XP055641519
SHIMAMURA, A. ET AL.: "Direct observation of grafting interlayer phosphate in Mg/A1 layered double hydroxid", JOURNAL OF SOLID STATE CHEMISTRY, vol. 186, 7 December 2011 (2011-12-07), pages 116 - 123, XP028448015, DOI: 10.1016/j.jssc.2011.11.034
See also references of EP 3685914A4
Attorney, Agent or Firm:
PARK, Sangyoul (KR)
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