JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 37 Issue 5
October 2022
Article Contents
LU Feng, NIU Yuanyuan, GU Yuna and et al. Response surface methodology for optimization of pefloxacin adsorption using activated carbon prepared from corncob[J]. Journal of Light Industry, 2022, 37(5): 105-112. doi: 10.12187/2022.05.013
Citation: LU Feng, NIU Yuanyuan, GU Yuna and et al. Response surface methodology for optimization of pefloxacin adsorption using activated carbon prepared from corncob[J]. Journal of Light Industry, 2022, 37(5): 105-112. doi: 10.12187/2022.05.013 shu

Response surface methodology for optimization of pefloxacin adsorption using activated carbon prepared from corncob

  • Received Date: 2021-05-24
    Accepted Date: 2022-03-26
  • Activated carbon prepared from agricultural wastes corncob by steam activation was investigated for the removal of pefloxacin (PFX) from aqueous solution. The results showed that the activated carbon prepared from corncob had well-developed microporous structure. The Box-Behnken design model of response surface methodology was used to optimize the optimal adsorption conditions: the amount of corncob-based activated carbon was 0.6 g/L, the adsorption time was 382 min, and the pH of the PFX solution was 3.76. The results showed that the Langmuir and Koble-Corrigan isothermal adsorption models could properly describe the adsorption behavior of PFX on activated carbon. The adsorption of PFX on activated carbon was a spontaneous, endothermic and increasing entropy process. The adsorption process of PFX on activated carbon was in accord with pseudo-second-order model. At 298 K, the maximum adsorption capacity of PFX on activated carbon was 70.42 mg/g, indicating that the corncob-based activated carbon was a promising candidate for the treatment of pefloxacin wastewater.
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