Study on the modified montmorillonite for adsorbing formaldehyde

- A cost-effective and efficient adsorbent for HCHO was achieved on alumina cross-linked montmorillonite with surfactant modification (Al-SCLM).
- The adsorbing capacity of HCHO on Al-SCLM can be 80% on activated carbon with the same volume.
- The strategy that improves the adsorbing capacity by increasing the interlayer distance of materials with surfactant modification has a good prospect for getting rid of HCHO in industrialization.