公开(公告)号：US09289746B2

公开(公告)日：2016-03-22

申请号：US14186033

申请日：2014-02-21

Applicant: King Saud University

Inventor： Sajjad Haider ,  Yousef S. Al-Zaghayer ,  Waheed Al-Masry ,  Fekri Abdulraqeb Ahmed Ali ,  Mohammed K. Hadj-Kali

IPC: C08B37/08 ,  B01J20/24 ,  C08L5/08 ,  B01J20/26 ,  B01J20/28 ,  B01J20/32 ,  C02F1/28 ,  C02F101/20 ,  C02F101/22

CPC classification number: B01J20/24 ,  B01J20/265 ,  B01J20/28007 ,  B01J20/3212 ,  B01J20/3259 ,  C02F1/285 ,  C02F1/286 ,  C02F1/288 ,  C02F2101/20 ,  C02F2101/22 ,  C02F2305/08 ,  C08B37/003 ,  C08L5/08

Abstract: The present invention relates to an amine grafted chitosan nanofiber having the formula (I) wherein R1 to R5 are independently selected from linear or branched C1-C20 alkandiyl C6-C24 arenediyl; k and m are independently selected from 1 to 10, wherein, in case that k and/or m are >1, each R4 and R5 group can be independently selected; and l and n are independently selected from 50-3000, a method for the preparation thereof and its use in heavy metal adsorption.

Abstract translation: 本发明涉及具有式（I）的胺接枝壳聚糖纳米纤维，其中R 1至R 5独立地选自直链或支链C 1 -C 20亚烷基C 6 -C 24二烯基; k和m独立地选自1至10，其中，在k和/或m> 1的情况下，可以独立地选择每个R 4和R 5基团; 1和n独立地选自50-3000，其制备方法及其在重金属吸附中的用途。

公开(公告)号：US12145865B1

公开(公告)日：2024-11-19

申请号：US18233089

申请日：2023-08-11

Applicant: KING SAUD UNIVERSITY

Inventor： Javed Alam ,  Mansour Salah Alhoshan ,  Fekri Abdulraqeb Ahmed Ali ,  Arun Kumar Shukla

IPC: C02F1/28 ,  B01J20/02 ,  B01J20/24 ,  B01J20/28 ,  B01J20/30 ,  C02F101/30 ,  C08J3/075 ,  C08J3/24

Abstract: Hydrogel nanobeads include an ionically crosslinked sulfated polysaccharide biopolymer such as a carrageenan. In an embodiment, the hydrogel nanobeads comprise kappa carrageenan (κCg) and a metal ion crosslinking agent. In an embodiment, the metal ion crosslinking agent includes a metal ion selected from the group consisting of Zn2+, Fe2+, Fe3+, and Ti3+. The hydrogel nanobeads can be used for removal of pollutants in wastewater.

公开(公告)号：US20140309410A1

公开(公告)日：2014-10-16

申请号：US14186033

申请日：2014-02-21

Applicant: King Saud University

Inventor： Sajjad HAIDER ,  Yousef S. AL-ZAGHAYER ,  Waheed AL-MASRY ,  Fekri Abdulraqeb Ahmed Ali ,  Mohammed K. HADJ-KALI

IPC: B01J20/24

CPC classification number: B01J20/24 ,  B01J20/265 ,  B01J20/28007 ,  B01J20/3212 ,  B01J20/3259 ,  C02F1/285 ,  C02F1/286 ,  C02F1/288 ,  C02F2101/20 ,  C02F2101/22 ,  C02F2305/08 ,  C08B37/003 ,  C08L5/08

Abstract: The present invention relates to an amine grafted chitosan nanofiber having the formula (I) wherein R1 to R5 are independently selected from linear or branched C1-C20 alkandiyl C6-C24 arenediyl; k and m are independently selected from 1 to 10, wherein, in case that k and/or m are >1, each R4 and R5 group can be independently selected; and 1 and n are independently selected from 50-3000, a method for the preparation thereof and its use in heavy metal adsorption.

Abstract translation: 本发明涉及具有式（I）的胺接枝壳聚糖纳米纤维，其中R 1至R 5独立地选自直链或支链C 1 -C 20亚烷基C 6 -C 24二烯基; k和m独立地选自1至10，其中，在k和/或m> 1的情况下，可以独立地选择每个R 4和R 5基团; 1和n独立地选自50-3000，其制备方法及其在重金属吸附中的用途。