Corrigendum: Water Science and Technology 2017 (1), 36–47: Taguchi optimization approach for metronidazole removal from aqueous solutions by using graphene oxide functionalized β-cyclodextrin/Ag nanocomposite

2018 ◽  
Vol 2017 (3) ◽  
pp. 922-922
Author(s):  
Nematollah Jaafarzadeh ◽  
Hamideh Rezazadeh ◽  
Zahra Ramezani ◽  
Sahand Jorfi ◽  
Mehdi Ahmadi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Science And Technology ◽  
Optimization Approach ◽  
Taguchi Optimization ◽  
Water Science

scholarly journals Taguchi optimization approach for metronidazole removal from aqueous solutions by using graphene oxide functionalized β-cyclodextrin/Ag nanocomposite

2018 ◽  
Vol 2017 (1) ◽  
pp. 36-47 ◽  
Author(s):  
Neamatollah Jafarzadeh ◽  
Hamideh Rezazadeh ◽  
Zahra Ramezani ◽  
Sahand Jorfi ◽  
Mehdi Ahmadi ◽  
...  
Keyword(s):  
Experimental Data ◽  
Graphene Oxide ◽  
Ionic Strength ◽  
Contact Time ◽  
Carbon Adsorbents ◽  
Isotherm Models ◽  
Optimization Approach ◽  
Order Kinetic ◽  
Solution Ph ◽  
Taguchi Optimization

Abstract Metronidazole (MNZ) is a major threat to the ecosystems and human health, due to its toxicity and carcinogenic nature. The main aim of this study was to evaluate the efficiency of graphene oxide functionalized β-cyclodextrin/Ag nanocomposite (GO/β-CD/Ag) for MNZ removal from aqueous solution. The effect of operational parameters such as solution pH (2–5), adsorbent dosages (0.2–1 g/L), contact time (10–80 min), initial MNZ concentrations (0.25–10 mg/L) and ionic strength (0.001–0.1 mol/L) was studied using Taguchi experimental design. The maximum removal efficiency of 93.5% was observed for optimum conditions. The optimum values of contact time, the initial MNZ concentration, the ionic strength, the adsorbent dosage and solution pH were found to be 20 min, 0.25 ppm, 0.01 mol/L, 0.4 g/L and 2, respectively. Freundlich and Dubinin–Radushkevich isotherm models were best-fitted with experimental data. Pseudo-first order and type 1 pseudo-second order kinetic models showed the maximum correlation with the experimental data. Adsorption experiments with real samples indicated that the adsorptive removal of MNZ from a hospital wastewater was 72%. Desorption studies showed maximum recovery of GO/β-CD/Ag nanocomposite during three cycles. According to the obtained results, it can be concluded that the application of carbon adsorbents such as GO/β-CD/Ag can be considered an efficient method for final treatment of effluents containing antibiotics.

Taguchi optimization approach for Pb(II) and Hg(II) removal from aqueous solutions using modified mesoporous carbon

2011 ◽  
Vol 192 (3) ◽  
pp. 1046-1055 ◽  
Author(s):  
Ghasem Zolfaghari ◽  
Abbas Esmaili-Sari ◽  
Mansoor Anbia ◽  
Habibollah Younesi ◽  
Shahram Amirmahmoodi ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Mesoporous Carbon ◽  
Optimization Approach ◽  
Taguchi Optimization

Removal of Phenols from Aqueous Solutions by Graphene Oxide Nanosheet Suspensions

2016 ◽  
Vol 16 (12) ◽  
pp. 12426-12432 ◽  
Author(s):  
Linyan Yu ◽  
Xiongwei Wu ◽  
Qi Liu ◽  
Liangliang Liu ◽  
Xinyu Jiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Graphene Oxide Nanosheet
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