Adsorptive removal studies of lead(II) ions using functionalized silica | Zendy

Rajesh Kumar | Zendy; Thomas Abraham | Zendy; Surendra Jain | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Adsorptive removal studies of lead(II) ions using functionalized silica

Author(s) -

Rajesh Kumar,

Thomas Abraham,

Surendra Jain

Publication year - 2011

Publication title -

journal of water reuse and desalination

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.548

H-Index - 16

eISSN - 2408-9370

pISSN - 2220-1319

DOI - 10.2166/wrd.2011.020

Subject(s) - adsorption , freundlich equation , aqueous solution , chemistry , langmuir , langmuir adsorption model , silica gel , surface modification , inorganic chemistry , nuclear chemistry , chromatography , organic chemistry

An adsorbent was prepared by the functionalization of 2-hydroxyacetophenone-3-thiosemicarbazone onto 3-aminopropyl silica by diazotation and characterized by Fourier transmission infra red spectrometry. The functionalized silica was evaluated for removal of lead(II) ions in aqueous solutions. The maximum adsorption capacity 385 μg/g was obtained with an initial concentration of 1,000 μg/L by the Langmuir isotherm. The results indicated that adsorption data could be fitted better by the Langmuir than the Freundlich isotherm. The adsorption kinetics followed pseudo-second-order reaction and the rate constants of kinetic model were calculated. The experimental results implied that functionalized silica has the potential to work as a good adsorbent for the removal of the heavy metals from contaminated water. This novel adsorbent was found to be easy to synthesize, simple, cost-effective and highly efficient and has potential application in the water purification field.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research