Sustainable Technology

Integrated strategies focused on circular approach, biomass utilization, and responsible process.

From PET Waste to MOF, Environmental Purifier

  • An integrated recycling method for dyed PET textiles allows the recovery of monomeric compounds, dyes, and side-products of the PET depolymerization process.
  • Recovered materials are used to synthesize MIL-88B(Fe) metal-organic framework. Recovered dye is recyclable.
Reaction time, monomer yield and molecular structure
Value-added upcycling
Value-Added Upcycling

A Sustainable Framework for Advancing Circular Practices for Polyethylene Terephthalate Textiles: Optimized Recycling of Depolymerization Products and LCA Validation. RSC advances (2025).

Recycling Hard-to-Recycle, Blended Textiles

We develop a sustainable upcycling strategy to transform hard-to-recycle polyethylene terephthalate (PET)/cotton blended fabrics into copper-1,4-benzenedicarboxylate (Cu-BDC) functionalized textiles, redefining both fiber components as value-added material for environmental applications.

Recycling hard-to-recycle blended textiles

PET as Ligand Source

Depolymerized PET becomes the Terephthalate (BDC) ligand for MOF synthesis.

Cotton as Scaffold

Mercerized cotton serves as a robust structural matrix for in situ MOF growth.

Sustainable upcycling of difficult-to-recycle PET/cotton fabrics into acid-modulated Cu-BDC adsorbents with morphology-driven gas selectivity. Sustainable Materials and Technologies (2026)

Integrated Upcycling Process

Integrated upcycling process

i. Selective PET depolymerization

Alkaline hydrolysis (NaOH/EtOH/H₂O) targets the PET fraction, converting it into soluble Na₂BDC ligands with 95% efficiency.

Simultaneously, the cotton fabric undergoes mercerization, activating its surface for functionalization.

ii. In-situ MOF Growth

The Na₂BDC-coated cotton is treated with Copper Acetate.

This triggers rapid coordination, growing Cu-BDC crystals directly on the fibers (up to 43.1 wt% loading).

Sustainable upcycling of difficult-to-recycle PET/cotton fabrics into acid-modulated Cu-BDC adsorbents with morphology-driven gas selectivity. Sustainable Materials and Technologies (2026)