The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2025
Filed:
Mar. 19, 2024
Institute of Soil Science, Cas, Nanjing, CN;
Xingxiang Wang, Nanjing, CN;
Yurong Wang, Nanjing, CN;
Changfeng Ding, Nanjing, CN;
Ziyao Li, Nanjing, CN;
Liqin He, Nanjing, CN;
Institute of Soil Science, CAS, Nanjing, CN;
Abstract
Disclosed are a floatable three-dimensional (3D) hollow microsphere material, and its preparation method and use in soil cadmium reduction, belonging to the field of regeneration of contaminated soil. The preparation method includes: mixing polyvinyl alcohol, sodium alginate, ethylenediaminetetraacetic acid, saponin, and at least one of modified rectorite and unmodified rectorite, to obtain a mixed material, wherein the modified rectorite includes at least one of formamide-modified rectorite and sodium humate-modified rectorite; and mixing the mixed material with a cross-linking agent solution, and performing cross-linking on a resulting mixture to obtain the floatable 3D hollow microsphere material. The floatable 3D hollow microsphere material is applied to moist soil to adsorb and remove heavy metal elements.