Progress on Fabrication of Polyamidoamine Dendrimer-Based Adsorbents and Their Application
Polyamidoamine(PAMAM)dendrimers are hyperbranched structures and contain abundant functional groups such as tertiary amines,amides and amines groups.The content of the functional groups of PAMAM dendrimer is enhanced following the increase of the generation of dendrimers.The functional groups are arranged regularly within the dendrimer structure,thus providing an ideal template for the concentrated and hierarchical distribution of adsorption sites.Meanwhile,PAMAM dendrimers exhibit excellent water solubility,stability and pH-responsive property.The adaptability to different water environments and selective adsorption properties of PAMAM dendrimers for the target pollutants can be improved by regulating the dendrimer generations,central core,terminal groups and solution pH.Therefore,it is importance of the fabrication of PAMAM dendrimer-based adsorbents for the adsorption and separation of metal ions,dyes,biomacromolecule and drug molecules and CO2.Here,the construction and application of PAMAM dendrimer-based adsorbents were summarized.The future application prospects and development directions were proposed.
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