Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 380, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2019.120838
Keywords
Nanocomposites; Adsorption; Waste-water; Isotherm; Kinetics
Categories
Funding
- Science and Engineering Research Board, India [PDF/2016/000110]
- Deanship of Scientific Research at King Saud University, Riyadh [RG-1438-094]
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Herein, we report for the first time, the synthesis of CuO-Nd(OH)(3) nanocomposites via a co-precipitation method coupled with the hydrothermal aging process. Varying the pH of the reaction medium, the shape of the nanocomposites could be controlled which determines their surface areas. These CuO-Nd(OH)(3) nanocomposites exhibit very high adsorption capacity with successful removal of similar to 97% of brilliant blue G (BBG) from water in 180 min under ambient condition. The adsorption process primarily follows Lagergren pseudo-first-order kinetics. The Langmuir isotherm model fits well with a very high monolayer adsorption capacity of 394.1 mg g(-1) at 30 degrees C. The mechanistic study supports chemisorption-type adsorption between the dye molecule and the adsorbent. Regeneration of the spent adsorbent makes the whole process cyclic and eco-friendly.
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