This issue has nine interesting papers dedicated to nano-materials and nano-structured materials, including 0D quantum dots, 1D nanotubes, 2D graphene, thin films, nano-porous structures, nano-composites, and interfaces. Nano-materials and nano-structured materials have been widely studied for their brand new properties which are different from properties of their bulk counterparts, due to large surface-area-to-volume ratio, size effects, quantum confinements and so on. Nanotubes are typical 1D materials. Song et al. (DOI: 10.30919/esmm5f193) explored and demonstrated that the multi-walled carbon nanotubes (MWCNTs) could serve as a promising adsorbent for methyl blue removal in wastewater. The MWCNTs-polyethylenimine adsorbent contributes to an enhancement of the adsorption capacity in methyl blue removal, where the maximum adsorption capacity is as high as 418 mg/g at 35 °C. As a review, Liu et al. (DOI: 10.30919/esmm5f199) go through the carbon nanotube and boron nitride nanotube in structure, property and synthesis methods.