Nanchang Hangkong University

Hui Shi

Xubiao Luo

Liming Yang

Penghui Shao

Mingming Peng

Deng You

Zhen Yu

Zichao Hu

Xuan Ding

Kai Yu

Xin Sheng

The present disclosure provides a three-dimensional alkynyl-containing porous aromatic framework polymer and a preparation method and use thereof. The polymer has a structure represented by Formula I: The preparation method includes: under a protective atmosphere, mixing tetrakis(p-bromophenyl)methane, 1,3,5-triethynyl benzene, a catalyst and an amine solvent, and subjecting to a Sonogashira-Hagihara coupling reaction to obtain the three-dimensional alkynyl-containing porous aromatic framework polymer having the structure represented by Formula I.

Three-dimensional alkynyl-containing porous aromatic framework polymer and preparation method and use thereof

Disclosed is a method for preparing an acid-resistant Zr-metal-organic framework (Zr-MOF) material with selective adsorption of hexavalent chromium, which is specifically a method for preparing a MOF material with selective adsorption of hexavalent chromium. The present invention aims to solve the technical problems that the existing MOFs have poor water stability, is unstable in an aqueous solution, and therefore may structurally collapse. In addition, the micropore characteristics of most MOFs have affected the mass transfer rate of the adsorbate, which in turn limits the industrial application thereof. The MOF of the present invention has excellent water stability and acid resistance, showing a strong adaptability and great potential in treating mostly acidic industrial wastewater. As a new functional material for water treatment, the MOF has optimal selective adsorption capacity and a desirable adsorption capacity for hexavalent chromium in water, which improves the recycling and later resource utilization.

Method for preparing acid-resistant Zr-MOF material with selective adsorption of hexavalent chromium

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Nanchang, China

Hui Shi