List of Articles Colorful Pollutants

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - Development and Characterization of Graphene Oxide based Composite for Adsorptive Removal of Azo Reactive Dyes from Aqueous Media
  Zahra Zareei saeid Jafari Mohammad D.ahmadabadi Mohammadali Shirgholami Masoud Rohani Moghadam
  10.30495/ijtnbm.2022.693705
  In this study, we tried to present an efficient method for removal of Reactive red 241 (RR241) from aqueous media, using a modified carbon composite with GO sheets. The prepared nanocomposites were then charchterized by commonly identical techniques involving FESEM, BET More

  In this study, we tried to present an efficient method for removal of Reactive red 241 (RR241) from aqueous media, using a modified carbon composite with GO sheets. The prepared nanocomposites were then charchterized by commonly identical techniques involving FESEM, BET, and FT-IR. In removal studies, various parameters affecting the adsorption process including pH, time, adsorbent dose, temperature as well as the amount of GO in the construction of composite were studied by response surface method. The optimum conditions for 100 mg/Ldye removal were pH of 5.0, 75 minutes time , and the adsorbent dose of 1.47 g/L containing 4.15 wt.% of GO.  Also, under optimum conditions, the maximum, 96%  removal, was achieved. Experiments showed that the adsorption was more consistent with the Langmuir equations, and the maximum adsorption under this model was 160 mg/g. The removal experiments showed that the amount of the adsorbent, GO content and pH had a significant effect on RR241 removal. BET analysis indicated that the addition of GO to the carbon composite structure improved the pore size, total pore volume, and effective surface area of the composite. Also, isotherms, kinetics, and thermodynamic studies of adsorption depicted that the Langmuir isotherm model, pseudo-second-order kinetic model, and self-adsorption are suitable models for RR241dye adsorption. Manuscript profile