Fast and efficient removal of paraquat in water by porous polycalix[n]arenes (n = 4, 6, and 8),Journal of Materials Chemistry A

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Fast and efficient removal of paraquat in water by porous polycalix[n]arenes (n = 4, 6, and 8)
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-06-29 , DOI: 10.1039/d0ta01907k
Dinesh Shetty _{1,

2,

3,

4,

5} , Sandra Boutros _{1,

2,

3,

4} , Tina Skorjanc _{1,

2,

3,

4} , Bikash Garai _{1,

2,

3,

4} , Zouhair Asfari _{6,

7,

8,

9} , Jesus Raya _{9,

10,

11} , Ali Trabolsi _{1,

2,

3,

4}

Affiliation

Herbicide paraquat (dimethylviologen) is a major water pollutant threatening ecosystems and human health. Therefore, it is crucial to develop materials to remove it from water. Three calix[n]arene-based (n = 4, 6, 8) porous organic polymers with different cavity sizes of the backbone macrocycle (CX4P, CX6P, CX8P) were synthesized and tested for their potential use in toxic paraquat removal. These polymers reached some of the highest reported maximum uptake capacities (Q_max up to 419 mg g⁻¹) and showed high adsorption rate constants (k_obs up to 0.179 g mg⁻¹ min⁻¹). Importantly, the materials could be easily regenerated by simple washing methods and reused without significant losses in their efficiency while still outperforming commercial activated carbon currently used in water purification.

中文翻译：

多孔多杯芳烃[n]芳烃（n = 4、6和8）快速有效地去除水中的百草枯

百草枯除草剂（二甲基紫精）是威胁生态系统和人类健康的主要水污染物。因此，开发将其从水中去除的材料至关重要。三个杯[ Ñ ]芳烃基（Ñ = 4，6,8）多孔与骨干大环（的不同尺寸的腔的有机聚合物CX4P，CX6P，CX8P）的合成和它们在有毒百草枯去除潜在用途测试。这些聚合物达到了一些报道的最大最大吸收容量（Q _max高达419 mg g ^-1），并显示出高吸附速率常数（k _obs高达0.179 g mg ^-1 min ^-1））。重要的是，这些材料可以通过简单的洗涤方法轻松再生，并且可以在不显着降低其效率的情况下重复使用，同时仍胜过目前用于水净化的商业活性炭。

更新日期：2020-07-21

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