What does this research mean for the field?

A bio-based composite derived from Opuntia dillenii pectin via dual ionic-covalent crosslinking provides efficient and reusable adsorption for the removal of azo dyes from aqueous solutions. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to develop a sustainable composite from Opuntia dillenii for effective dye removal from water.

May 20, 2026RSC Advances2 citationsOpen Access

Valorization of Opuntia dillenii biomass into a reusable bio-based composite for sustainable and efficient methyl orange adsorption

THThi-Kim-Chi Huynh TNThi‐Hong‐An Nguyen CHCông-Hâu Huynh

Key Points

This research aims to develop a sustainable composite from Opuntia dillenii for effective dye removal from water.
Developed a bio-based composite using Opuntia dillenii pectin via dual ionic-covalent crosslinking.
Evaluated the composite's efficiency in adsorbing methyl orange from aqueous solutions.
Assessed the regeneration capability of the composite after dye adsorption.
The composite exhibited high adsorption capacity for methyl orange, indicating effective dye removal.
Regeneration tests showed the composite can be reused for multiple adsorption cycles without significant loss in performance.

Abstract

A sustainable bio-based composite derived from Opuntia dillenii pectin was developed via dual ionic–covalent crosslinking, enabling efficient adsorption and regeneration for azo dye removal from aqueous solutions.

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