Environmental Studies and Forestry

A super-efficient gel adsorbent with over 1000 times the adsorption capacity of activated carbon

M. Hu, N. Xie, et al.

Discover the groundbreaking RRQG@CDC, a super-efficient gel adsorbent system developed by Menghan Hu, Na Xie, Yujia Huang, and Yikai Yu. This innovative solution boasts an adsorption capacity 1250 times that of activated carbon, revolutionizing the purification of dyeing wastewater while remaining effective under various pH and salinity conditions. The waste generated can even be repurposed as high-calorific fuel, showcasing an eco-friendly approach to waste management.

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Abstract

This study introduces a super-efficient gel adsorbent system (RRQG@CDC), synthesized by loading a flat-distributed polyquaternium gel (RRQG) onto a cyclodextrin carbide (CDC) skeleton. RRQG@CDC exhibits an adsorption capacity 1250 times higher than activated carbon, enabling highly efficient purification of dyeing wastewater. Its effectiveness remains consistent across varying pH and salinity conditions. Simulated scale-up tests confirm its feasibility for practical applications. A novel enhanced quasi-planar electrostatic adsorption mechanism is proposed, and the post-adsorption waste is shown to be reusable as high-calorific fuel, eliminating secondary pollution.

Publisher

npj Clean Water

Published On

Jun 18, 2024

Authors

Menghan Hu, Na Xie, Yujia Huang, Yikai Yu

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