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Waste Bulrush Transformed Into Copper-Enhanced Material for Dye Removal
Key Takeaways
- Researchers at Doshisha University converted bullrush agricultural waste into a copper-enhanced biochar adsorbent (ZVCu@BAC) for removing synthetic dyes from industrial wastewater.
- The synthesis uses a single-step co-pyrolysis of biomass with copper(II) nitrate trihydrate and potassium hydroxide, growing zero-valent copper nanoparticles in situ without hazardous chemical reducing agents.
- The resulting material is described as an amphoteric adsorbent, which broadens the range of dye chemistries it can potentially capture.
- Conventional options such as membrane separation, advanced oxidation and commercial activated carbon face barriers including energy demand, fouling, regeneration cost and secondary waste.
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DT Editorial Team··via phys.org