Preparation and Characterization of Activated Carbon from Vegetable Waste by Microwave-Assisted and Conventional Heating Methods

GERÇEL Ö., GERÇEL H. F.

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, cilt.41, sa.7, ss.2385-2392, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 7
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s13369-015-1859-7
  • Dergi Adı: ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2385-2392
  • Anahtar Kelimeler: Conventional heating method, Microwave heating method, Activated carbon, Chemical activation, Vegetable waste, AQUEOUS-SOLUTION, ADSORPTION, REMOVAL
  • Anadolu Üniversitesi Adresli: Evet

Özet

In this research, the use of vegetable waste has been investigated as a cheap and available precursor of activated carbon. Activated carbons were prepared through chemical activation by conventional and microwave heating systems. The most effective activated carbon was obtained by KOH activation-conventional heating using eggplant as a precursor. The chemical and textural characteristics of AC(1) were investigated using N-2 adsorption- desorption measurements, SEM, FTIR spectroscopy, TGA, EDX and CHN elemental analysis. The success of the prepared adsorbent in the removal of a textile dye (BurdermOrange II) and the effect of temperature and pH on the removal efficiency were studied. The best fit was obtained with a Langmuir isotherm model, and a maximum monolayer adsorption capacity of BOII was 833.33 mg g-(1) at 40 degrees C for pH 2. Kinetic parameters, such as rate constants, equilibrium adsorption capacities and related correlation coefficients, were calculated.