Kasetsart University researchers converted durian-husk cellulose into carboxymethyl cellulose and incorporated it into PLA printing filament. A 0.1 wt% loading performed best for methylene-blue adsorption in the tested set, following a pseudo-first-order model with k1=0.020 min−1. This is a circular-material proof of concept, not a deployment-ready water-treatment system.
Key findings
- CMC incorporation improved reported thermal and mechanical properties and introduced COO− groups for dye binding. The 0.1 wt% formulation had the best adsorption rate among those tested, and methylene-blue removal followed pseudo-first-order kinetics with k1=0.020 min−1.
Why this matters globally
Upcycling durian husk into a functional material links the bioeconomy with additive manufacturing and pollution control. Printable geometries may enable future optimisation of adsorbent surface area and flow.
Thai researcher contribution
A multidisciplinary Kasetsart University team covered the chain from agricultural residue and chemical modification to polymer processing and contaminant-removal testing.
Limitations to consider
Equilibrium capacity, removal percentage, surface area, pH effects, competing ions, real water, leaching, regeneration, and end-of-life are not reported in the abstract. Methylene blue is a single model pollutant, preventing comparison with commercial treatment systems.