Influence of Nitric Acid Concentration on Characteristics of Olive Stone Based Activated Carbon

Nouha Soudani; Souad Souissi-najar; Abdelmottaleb Ouederni

doi:10.1016/S1004-9541(13)60638-2

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Influence of Nitric Acid Concentration on Characteristics of Olive Stone Based Activated Carbon

研究简报 | Updated：2026-01-06

- Influence of Nitric Acid Concentration on Characteristics of Olive Stone Based Activated Carbon
- Chinese Journal of Chemical Engineering Vol. 21, Issue 12, Pages: 1425-14301004-954160638-2(2013)
- Affiliations：
  
  National School of Engineers of Gabes, University of Gabes,Gabes,Tunisia,6029
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60638-2
  CLC：
- Published：2013
- Accepted：
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Nouha Soudani, Souad Souissi-najar, Abdelmottaleb Ouederni. Influence of Nitric Acid Concentration on Characteristics of Olive Stone Based Activated Carbon[J]. Chin.J.Chem.Eng., 2013, 21(12): 1425-1430.
DOI：

Nouha Soudani, Souad Souissi-najar, Abdelmottaleb Ouederni. Influence of Nitric Acid Concentration on Characteristics of Olive Stone Based Activated Carbon[J]. Chin.J.Chem.Eng., 2013, 21(12): 1425-1430. DOI： 10.1016/S1004-9541(13)60638-2.

摘要

Abstract

In this work we investigated the effect of nitric acid concentration on the pore structure

surface chemistry and liquid phase adsorption of olive stone based activated carbon prepared by mixing process using phosphoric acid and steam as activating agents. Chemicals and textural characterization show that the increase of HNO

concentration increases considerably the total acidic groups but decreases specific surface area and pore volume. The study of adsorption in aqueous solutions of two organics

phenol and methylene blue

on raw and oxidized activated carbon indicates that the treatment of mixed activated carbon with different concentrations of nitric acid improves the adsorbent capacity for methylene blue at HNO

concentrations less or equal to 2 mol·L

while it has a negative effect on phenol adsorption.

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