Skoči na glavni sadržaj

Kemija u industriji : Časopis kemičara i kemijskih inženjera Hrvatske, Vol. 68 No. 5-6, 2019.

Stručni rad

https://doi.org/10.15255/KUI.2018.041

Adsorption of Cu2+, Zn2+, and Ni2+ Ions onto the Adsorbent Prepared from Fluid Catalytic Cracking Spent Catalyst Fines and Diatomite

Shu-Qin Zheng ; Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414 000, Hunan, P.R. China
Si-Cheng Liu ; Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414 000, Hunan, P.R. China
Pei-Qing Zhang ; Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414 000, Hunan, P.R. China
Cheng Yang ; Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414 000, Hunan, P.R. China
Ting Wang ; Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414 000, Hunan, P.R. China

Puni tekst: engleski pdf 1.072 Kb

str. 201-208

preuzimanja: 525

citiraj

Sažetak

An adsorbent prepared from fluid catalytic cracking (FCC) spent catalyst fines and diatomite, and its adsorption of Cu2+, Zn2+, and Ni2+ ions were investigated. The adsorbent was characterized by XRD, SEM, and N2 adsorption-desorption techniques. The results showed that the specific surface area and pore volume of adsorbent increased with the increase in FCC spent catalyst fines. The influence factors on the adsorption of the adsorbents were studied. The suitable adsorption conditions were: pH value of 5.0, ratio of solid to liquid of 1 : 600 (g:ml), adsorption time of 4 h, room temperature. The adsorption of metal ions varied with the type of metal cations. The adsorption isotherms suggested that the sequence of the adsorption efficiency was Cu2+ > Zn2+ > Ni2+. The amount of Cu2+, Zn2+, and Ni2+ metal ion adsorbed onto the adsorbent was 49.17 mg g–1, 46.83 mg g–1, and 35.72 mg g–1, respectively. The adsorption data of Cu2+, Zn2+, and Ni2+ ions fitted well with the Freundlich adsorption isotherm model.




This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

adsorption; heavy metal ion; FCC spent catalyst fines; diatomite

Hrčak ID:

220201

URI

https://hrcak.srce.hr/220201

Datum izdavanja:

13.6.2019.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.577 *