Title:
METHOD FOR RECOVERING LEAD IODIDE AND SUBSTRATE OF WASTE PEROVSKITE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/193688
Kind Code:
A1
Abstract:
A method for recovering lead iodide and a substrate of a waste perovskite device. The method comprises the steps: preparing an iodide solution with a set concentration; immersing a waste perovskite device in the iodide solution for dissolution until perovskite substances in the waste perovskite device are not dissolved any more, and taking the supernate; adding water to the supernate for dilution to obtain a lead iodide crystal containing a small amount of impurities; washing the lead iodide crystal having a small amount of impurities, adding an acid to treat the lead iodide crystal, washing the lead iodide crystal with isopropanol and diethyl ether to obtain a lead iodide powder, and drying the lead iodide powder to obtain recovered lead iodide; and cleaning and recovering a generated substrate.
Inventors:
WANG RUI (CN)
XUE JINJIN (CN)
ZHANG XU (CN)
ZHAO KE (CN)
XUE JINJIN (CN)
ZHANG XU (CN)
ZHAO KE (CN)
Application Number:
PCT/CN2023/086010
Publication Date:
October 12, 2023
Filing Date:
April 03, 2023
Export Citation:
Assignee:
UNIV WESTLAKE (CN)
International Classes:
B09B3/70; B09B5/00; C01G21/16; B09B101/16
Domestic Patent References:
| WO2019138154A1 | 2019-07-18 |
Foreign References:
| CN114871254A | 2022-08-09 | |||
| CN111434614A | 2020-07-21 | |||
| CN106410048A | 2017-02-15 | |||
| CN110127755A | 2019-08-16 | |||
| KR101798549B1 | 2017-11-17 |
Attorney, Agent or Firm:
HANGZHOU HUIHEXIN PATENT AGENCY CO., LTD. (CN)
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