Open AccessStudying effect of temperature on to formation and red congo absorption ability of cupper oxide
Author(s) -
Lan Nguyen Thi,
Mai Nguyen Thị Tuyet,
Thang Pham Van,
C. Dang,
Dũng Tạ Ngọc,
Anh Luu Thi Lan
Publication year - 2020
Publication title -
xúc tác và hấp phụ
Language(s) - English
Resource type - Journals
ISSN - 0866-7411
DOI - 10.51316/jca.2020.031
Subject(s) - congo red , adsorption , freundlich equation , aqueous solution , oxide , nanoparticle , absorption (acoustics) , kinetics , chemistry , raman spectroscopy , inorganic chemistry , nuclear chemistry , materials science , chemical engineering , nanotechnology , organic chemistry , composite material , optics , physics , engineering , quantum mechanics
Cuprous oxide nanoparticles (Cu2O) were prepared by a one-step reduction method at 65, 70 and 85oC temperature. The Cu2O nanoparticles were characterized by XRD, Raman, SEM and EDS techniques, respectively. The adsorption removal of red congo dye from aqueous solution by the as-prepared Cu2O nanoparticles was studied. Kinetics and isotherms studies suggested that the adsorption process followed pseudo-second-order and Freundlich models. The maximum adsorption capacity was estimated to be 82,6 mg/g, which was the highest reported value so far for red congo adsorption.