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A multifunctional chitosan composite aerogel for PPCPs adsorption.

Wenkun Zhang¹, Ting Huang¹, Yu Ren¹

¹College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, PR China.

Carbohydrate Polymers

|October 14, 2022

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A novel chitosan composite aerogel effectively removes pharmaceuticals and personal care products (PPCPs) from water. This reusable adsorbent also exhibits antifouling and bacterial filtration properties, offering a sustainable solution for water purification.

Area of Science:

Environmental Science
Materials Science
Chemistry

Background:

Pharmaceuticals and personal care products (PPCPs) are persistent environmental pollutants.
Effective removal of PPCPs from water requires the development of advanced adsorbent materials.
Existing methods for PPCP removal face challenges related to efficiency and reusability.

Purpose of the Study:

To develop a novel composite aerogel for the efficient adsorption and removal of PPCPs from aqueous solutions.
To investigate the antifouling, bacterial filtration, and oil-water separation capabilities of the developed aerogel.
To assess the reusability and long-term performance of the aerogel as a water adsorbent.

Main Methods:

Preparation of ZIF-67/QGO/SB-CS aerogel using an improved dual ice-template assembly method.

Keywords:

Adsorption Antifouling Bacterial filtration Chitosan aerogel Oil-water separation PPCPs

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Incorporation of ZIF-67, benzoquinone-modified graphene oxide (QGO), and sulfobetaine-modified chitosan (SB-CS).

Evaluation of PPCPs adsorption performance, antifouling, bacterial filtration, and oil-water separation abilities.

Main Results:

The synthesized ZIF-67/QGO/SB-CS aerogel demonstrated excellent adsorption performance for PPCPs.
The composite aerogel exhibited significant antifouling, bacterial filtration, and oil-water separation capabilities.
The adsorbent material proved to be highly reusable, maintaining its performance over multiple cycles.

Conclusions:

The developed chitosan composite aerogel is a promising, reusable adsorbent for PPCP removal from water.
The material's multifunctional properties (antifouling, filtration) enhance its applicability in water treatment.
This novel aerogel offers a viable and sustainable solution for long-term water purification challenges.