Enhanced adsorption of methylene blue onto graphene oxide-doped XFe2O4 (X 5Co, Mn, Ni) nanocomposites: kinetic, isothermal, thermodynamicand recyclability studies
Ngày
2017-10-30
Tác giả
Bach, Long Giang
Tran, Van Thuan
Nguyen, Duy Trinh
Pham, Van Thinh
Do, Sy Trung
Tên Tạp chí
Tạp chí ISSN
Nhan đề tập
Nhà xuất bản
Trường Đại học Nguyễn Tất Thành (Tạp chí Khoa học công nghệ NTT)
Giấy phép
Tóm tắt
Abstract The nanocomposites XFe2O4/GO with various metal sites (X = Co, Mn, and Ni) were successfully synthesized via the polymerized complex method. The XFe2O4/GO family was characterized using X-Ray diffraction analysis, scanning electron microscopy (SEM), and a vibrating sample magnetometer. We also investigated the effect of three fundamental parameters (initial concentration, dosage, and pH) on the removal of methylene blue using the response surface methodology. A high F value, very low P value (\ 0.00001), a non-significant lack of fit, and the determination coefficient (R2 [ 0.95) demonstrated a strong corre- lation between experimental and predicted values of the responses. The predicted optimal conditions for maximum removal efficiency were easily determined to adhere to the following trend for actual test experiments: MnFe2O4/GO (60.1%) \ CoFe2O4/GO (80.3%) \ NiFe2O4/GO (87.7%).
Mô tả
29 tr.
Từ khóa
Magnetic nanoparticle , Graphene oxide , Response surface methodology