Details

Autor(en) / Beteiligte

• Mohammadzadeh Kakhki, R.
• Ahsani, F.
• Yaghoobi Rahni, S.

Titel

Characterization and adsorption performance of CdMn2O4 nanocomposite as a new highly efficient adsorbent

Ist Teil von

• International journal of environmental science and technology (Tehran), 2019-10, Vol.16 (10), p.5979-5988

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2019

Quelle

springer (창간호~2014)

Beschreibungen/Notizen

• In the present report, a novel cadmium-manganese oxide (CdMn 2 O 4 ) nanocomposite was prepared using a simple co-precipitation method and further characterized for its properties and adsorption performance. XRD analysis showed the formation of CdMn 2 O 4 crystalline phase. FESEM images showed that this new crystal compound has spherical morphology with the average size of 50 nm. Moreover, FTIR analysis gave some structural information of this new nanoadsorbent. For evaluation of the adsorption ability of this nanocomposite, a cationic dye, methylene blue, was employed. The different conditions such as concentration of dye, amount of sorbent and solution pH for improving sorption efficiency were studied. Due to unique structural features, CdMn 2 O 4 nanocomposite showed a high efficiency for the removal of cationic dye. The results showed that it can remove methylene blue up to 93% in 10 min. The adsorption isotherms (Langmuir and Freundlich models) were also plotted. q max and b values obtained from Langmuir plot were 30.3 mg/g and 1010.1 mg/L, respectively. Furthermore, the n value (1.66) and K f (0.083 mg/g) were reported from Freundlich model. Moreover, adsorption kinetic obeys pseudo-second-order model with the rate constant 0.092 (g/mg min). The obtained results obviously revealed that this newly synthesized nanoadsorbent is highly useful and cost-effective for eliminating cationic methylene blue dye from water.