Effect of zeolite hydroxyl active site distribution on adsorption of Pb(II) and Ni(II) pollutants from water system by polymeric nanofibers

• Published in: Separation science and technology Vol. 55; no. 11; pp. 1994 - 2011
• Main Authors: Shafiee, Mohaddeseh, Abedi, Mohammad Ali, Abbasizadeh, Saeed, Sheshdeh, Reza Khalighi, Mousavi, Seyed Ebrahim, Shohani, Sepideh
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 23.07.2020; Taylor & Francis Ltd
• Subjects: Adsorption; Aluminium; Aluminum; Chitosan; close hydroxyl site; Hydroxyl groups; HZSM-5; Ions; Lead; lead and nickel; Nanofiber; Nanofibers; Nickel; Pollutants; Polyvinylpyrrolidone; single and binary adsorption; Water pollution; Zeolites
• ISSN: 0149-6395; 1520-5754
• DOI: 10.1080/01496395.2019.1624572

Two Polyvinyl pyrrolidone(PVP)/chitosan/HZSM-5 nanofibers synthesized with various hydroxyl groups were used for Pb(II) and Ni(II) adsorption in water system. The close aluminum proportion in HZSM-5(1) provided by Al(NO 3 ) 3 and HZSM-(2) provided by Al(OH) 3 were 8.8 and 45.8%, respectively. The nanofibers were characterized by FESEM, FTIR and TGA. The adsorption data were well interpreted by Langmuir isotherm. The maximum adsorption capacity of PVP/chitosan/HZSM-5(2) with higher close hydroxyl sites was 89.27 mg.g −1 for Ni(II) and 303.00 mg.g −1 for Pb(II) ions which was greater than q m of PVP/chitosan/HZSM-5(1). The interaction of lead and nickel ions onto the PVP/chitosan/HZSM-5(2) was antagonistic in binary system.