Recent advances in visible light driven inactivation of bloom forming blue-green algae using novel nano-composites: Mechanism, efficiency and fabrication approaches.

Over the years, algae have proved to be a water pollutant due to global warming, climate change, and the unregulated addition of organic compounds in water bodies from diffused resources. Harmful algal blooms (HABs) are severely affecting the health of humans and aquatic ecosystems. Among available anti-blooming technologies, semiconductor photocatalysis has come forth as an effective alternative.

Exfoliated Clay Decorated with Magnetic Iron Nanoparticles for Crystal Violet Adsorption: Modeling and Physicochemical Interpretation.

Surfactant-modified exfoliated Fayum clay (CTAB-EC) obtained after chemical treatment with a CTAB/HO solution was further decorated with magnetic FeO nanoparticles (MNP). The final nanocomposite (MNP/CTAB-EC) was characterized by XRD, SEM, FTIR, TEM and its adsorptive capability against a model cationic dye, crystal violet (CV), was evaluated. A comparison of the adsorption performance of the raw clay and its modified counterparts using HO, CTAB, CTAB/HO or MNP indicated that the adsorption capacity of MNP/CTAB-EC was the highest for CV removal at pH 8.