Media type: E-Article Title: Retraction Note: Adsorption kinetics and thermodynamics of Ni (II) by Pisha sandstone Contributor: Song, Feng-min; Ge, Hong-guang; Shi, Juan; Liu, Zhi-feng; Li, Chen; Tang, Bo imprint: Springer Science and Business Media LLC, 2021 Published in: Journal of Nanoparticle Research Language: English DOI: 10.1007/s11051-021-05230-4 ISSN: 1388-0764; 1572-896X Keywords: Condensed Matter Physics ; General Materials Science ; Modeling and Simulation ; General Chemistry ; Atomic and Molecular Physics, and Optics ; Bioengineering Origination: Footnote: