Cucurbit[5]uril-based porous polymer material for removing organic micropollutants in water

Organic micropollutants pose a tremendous challenge to global water resources, for nonbiodegradable synthetic chemicals, especially. In this investigation, we loaded Cucurbit [5]uril on polymer BPEIH to prepare supramolecular polymer Q[5]@BPEIH with pore structure, which is used to adsorb and remove organic micropollutants in water. The experimental results show that the adsorbent can remove organic micropollutants from water quickly and with high loading, which is better effect than that of traditional activated carbon. In particular, the polymer is an excellent adsorbent for 2,7-dihydroxynaphthalene and Neutral Red pollutants. It also has classy adsorption properties for 1-naphthylamine, Amaranth, Metallic Yellow, 8-hydroxy-1,3,6-trisulfonic acid pyrene, Methyl Orange and Crystal Violet. This adsorbent can also adsorb I-2. When the adsorption tends to equilibrium, the calculated adsorption rate is 87.2%. These outstanding adsorption effects show that this adsorbent can help to remove a variety of micropollutants in the process of wastewater treatment. More importantly, Q[5] @BPEIH that we designed and synthesized has the characteristics of low synthesis cost, simple synthesis and preparation process, high product yield, fast adsorption speed and strong removal ability. The admirable removal ability of pollutant proved the prospect of Q[5]@BPEIH for rapid sewage disposal.

Automated summary

In this study, a supramolecular polymer Q[5]@BPEIH with a pore structure was prepared by loading Cucurbit [5]uril on polymer BPEIH, which showed high efficiency in adsorbing and removing organic micropollutants in water. The adsorbent exhibited better performance than traditional activated carbon, especially in the adsorption of 2,7-dihydroxynaphthalene and Neutral Red pollutants. It also showed excellent adsorption properties for other pollutants such as 1-naphthylamine, Amaranth, Metallic Yellow, 8-hydroxy-1,3,6-trisulfonic acid pyrene, Methyl Orange, Crystal Violet, and I-2. The low synthesis cost, simple preparation process, high product yield, fast adsorption speed, and strong removal ability make Q[5]@BPEIH a promising candidate for rapid sewage disposal.