Open AccessStudying effect of temperature on to formation and red congo absorption ability of cupper oxide
Author(s) -
Nguyen Thi Lan,
Mai Nguyen,
Phạm Văn Thắng,
Huynh Dang Chinh,
Ta Ngoc Dung,
Lưu Thị Lan Anh
Publication year - 2020
Publication title -
vietnam journal of catalysis and adsorption
Language(s) - English
Resource type - Journals
ISSN - 0866-7411
DOI - 10.51316/jca.2020.060
Subject(s) - congo red , adsorption , freundlich equation , aqueous solution , oxide , nanoparticle , kinetics , absorption (acoustics) , chemistry , inorganic chemistry , nuclear chemistry , materials science , chemical engineering , nanotechnology , organic chemistry , composite material , physics , quantum mechanics , engineering
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.
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