Details

Autor(en) / Beteiligte

• Yang, Yan
• Wu, Wen-qin
• Zhou, Hai-hui
• Huang, Zhong-yuan
• Ye, Ting-ting
• Liu, Rui
• Kuang, Ya-fei

Titel

Adsorption behavior of cross-linked chitosan modified by graphene oxide for Cu(II) removal

Ist Teil von

• Journal of Central South University, 2014-07, Vol.21 (7), p.2826-2831

Ort / Verlag

Heidelberg: Central South University

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Cross-linked chitosan(CS), cross-linked chitosan/graphene(CS/RGO 10 ) and cross-linked chitosan/graphene oxide(CS/GO 10 ) were prepared as adsorbents for Cu(II). The effects of pH, contact time, adsorbent dosage and initial concentration of Cu(II) on the adsorbing abilities of CS,CS/RGO 10 and CS/GO 10 to Cu(II) were investigated. The results demonstrate that the adsorption capacities of CS/GO 10 and CS/RGO 10 are greater than that of CS, especially at pH 5.0 and the adsorption capacities are 202.5, 150 and 137.5 mg/g, respectively. Their behaviors obey the Freundlich isotherm model very well. Additionally, CS/GO 10 has the shortest time to achieve adsorption equilibrium among them and can be used as a perspective adsorbent for Cu(II).