Mudasir Ahmad, Indian, postdoctor. He has received his PhD degree in 2018. The title of his thesis is "Functional Modification and Characterization of Chitosan for Removal of Heavy Metal Ions from Wastewater". His research direction is adsorption separation. The main adsorbent materials are chitosan derivatives and functionalized tubular nanofibers, etc. which focus on the removal of heavy metal ions from wastewater. At present, 9 SCI papers, including 2 reviews, have been published as the first author, and has been cited more than 1000 times.