Nanjing University

Nanjing Normal University

Weiben Yang

Aimin Li

Chendong Shuang

Qing Zhou

Jinnan Wang

Chao Long

Fuqiang Liu

Zhen Yang

Zhaolian Zhu

Mancheng Zhang

Ning Zhuo

Xia Zhou

Jiachun Shen

Xuntong Zhang

Xuzeng Wang

Yuzhi Xue

Youdong Zhou

The present invention discloses the Synthesis and application of MOFs/natural polymers composite beads adsorbents. To overcome the drawback of MOFs, in an embodiment, both novel MOFs/sodium alginate (MOFs/SA) and MOFs/chitosan (MOFs/CS) composite beads were prepared and characterized. Each composite beads include one or more of MIL-101 (Cr), MIL-100 (Cr), MIL-53 (Al), MIL-100 (Al), NH-MIL-101 (Al), UIO-66, ZIF-8, ZIF-68, ZIF-67, and ZIF-9-67 nanoparticles. Adsorption of anionic contaminants onto the two composite beads was investigated and compared with pristine sodium alginate beads (SA) and chitosan beads (CS). The novel MOFs/SA beads all exhibit much higher adsorption capacity than SA beads; the novel MOFs/CS beads all exhibit much higher adsorption capacity than CS beads, which indicates that MOFs played a key role in the adsorption of anionic contaminants. The porous composite beads disclosed herein and related methods and devices may be used in adsorption technologies.

Synthesis and application of MOFs/natural polymers composite beads adsorbents

This invention relates to the field of resin, particularly to a magnetic, acrylic strongly basic anion exchange microsphere resin and its manufacturing method. Its basic structure is as follow: wherein its matrix contains magnetic grains and A is a group containing quaternary ammonium salts; the manufacturing method is: taking acrylic compounds as the monomer and mixing it with the crosslinking agent and porogenic agent to form an oil phase; evenly mixing the oil phase with magnetic grains and then conducting suspension polymerization; aminating and alkylating the polymerized magnetic grains so as to form the quaternary ammonium salts, namely the magnetic, acrylic strongly basic anion exchange microsphere resin. The exchange capacity of this resin is higher than that of any magnetic strongly basic anion exchange microsphere resin available either on both Chinese and overseas markets or in literature; it is able to take the place of the traditional strongly basic anion exchange resin in separating and removing soluble organics, particularly precursors of disinfection by-products, and various anions such as nitrates and phosphates.

Magnetic, acrylic strongly basic anion exchange microsphere resin and the manufacturing method thereof

Growing community of inventors

Nanjing, China

Weiben Yang