Covalently linked mercaptoacetic acid on ZrO2 coupled cellulose nanofibers for solid phase extraction of Hg(ii): experimental and DFT studies Authors Hilal Ahmad, Rais Ahmad Khan and Ali Alsalme Publication year 2022 Index (WoS/Scopus) WoS Publisher Royal Society of Chemistry Journal RSC Advances Link https://pubs.rsc.org/en/content/articlelanding/2022/ra/d2ra05436a