Here, we reported the adsorption behavior and
mechanism of methyl blue (MB) on the amorphous transitional metal oxide (Fe, Co and Ni oxides)
nanoparticles, and we demonstrated that the amorphousization of transitional metal oxide (Fe, Co and Ni
oxides) nanoparticles driven by a novel process involving laser irradiation in liquid can create a super
adsorption capability for MB, and the maximum adsorption capacity of the fabricated NiO amorphous
nanostructure reaches up to 10584.6 mgg21, the largest value reported to date for all MB adsorbents.