Removal of methyl orange by multiwall carbon nanotube accelerated by ultrasound devise: Optimized experimental design
作者： M. Ghaedi , S. Hajati , M. Zaree , Y. Shajaripour , A. Asfaram
DOI: 10.1016/J.APT.2015.05.002
关键词:
摘要: Abstract This study investigates the methyl orange (MO) removal from aqueous solution through application of ultrasound onto multiwalled carbon nanotubes (MWCNTs). Characterization MWCNT was carried out using scanning electron microscopy (SEM) and tunneling (TEM). The influences various parameters on percentage were studied optimized by a central composite design (CCD) response surface methodology (RSM). Results indicate that small amount proposed adsorbent (0.025 g) is responsible for successful 15 mg L −1 MO (RE > 99%) in short time (3.4 min) pH 1–2. Adsorption kinetic data are fitted well with pseudo second order model. Equilibrium followed Langmuir isotherm model maximum adsorption capacity 53.76 mg g .
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