Open AccessStudy on the adsorption of heavy metal ions Pb2+, Zn2+, Co2+, Ni2+from the aqueous solution of the copolymer prepared by gamma induced radiationpolymerization
Author(s) -
Bao Ngoc Pham,
Giang Nguyen,
Van Toan Le,
Xuan Cuong Le,
Minh Quân Nguyen,
Ngoc Bich Dao Vu,
Thi Tam Tran,
Van Thuc Le,
Thi Thuy Linh Le,
Thi Bich Thy Le,
Huynh Dien Han,
Trong Hoanh Phong Nguyen
Publication year - 2021
Publication title -
tạp chí khoa học và công nghệ việt nam (b, online) (vietnam journal of science and technology - most)/tạp chí khoa học và công nghệ việt nam (điện tử)/tạp chí khoa học và công nghệ việt nam (b, print) (vietnam journal of science and technology - most)
Language(s) - English
Resource type - Journals
eISSN - 2615-9759
pISSN - 1859-4794
DOI - 10.31276/vjst.63(3).06-11
Subject(s) - copolymer , differential scanning calorimetry , polyvinyl alcohol , nuclear chemistry , fourier transform infrared spectroscopy , aqueous solution , metal ions in aqueous solution , adsorption , acrylic acid , scanning electron microscope , polymerization , materials science , metal , polymer chemistry , chemistry , chemical engineering , polymer , organic chemistry , composite material , physics , engineering , metallurgy , thermodynamics
Copolymer hydrogel (PVA-g-AA) having varied PVA (Polyvinyl alcohol) and AA (Acrylic acid) content is prepared by gamma induced radiation polymerization. The parameters affecting the gel fraction yield have been studied. The gel fraction and the swelling property are found to be 92.39 and 905% respectively at an absorbed dose of 20 kGy. Structural and property characteristics were determined by Fourier Transform Infrared (FTIR) spectrometer and Differential Scanning Calorimetry (DSC). The surface morphology of PVA and copolymer has been studied with Scanning Electron Microscope (SEM). The factors affecting the metal uptake such as pH, time, and initial feed metal concentration were investigated. It is found that at pH 5 and after 240 minutes the maximum adsorption amount are 178, 161, 117, and 110 mg/g for Pb2+, Zn2+, Co2+, and Ni2+ respectively.