Removal of Paraquat from Aqueous Solutions onto Zeolite LTL | Zendy

Wilaiporn Insuwan | Zendy; Kunwadee Rangsriwatana | Zendy

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Removal of Paraquat from Aqueous Solutions onto Zeolite LTL

Author(s) -

Wilaiporn Insuwan,

Kunwadee Rangsriwatana

Publication year - 2017

Publication title -

engineering journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.246

H-Index - 20

ISSN - 0125-8281

DOI - 10.4186/ej.2017.21.2.15

Subject(s) - zeolite , paraquat , aqueous solution , chemistry , chemical engineering , materials science , engineering , organic chemistry , catalysis

Zeolite LTL (K_LTL and H_LTL) was used as adsorbent for the adsorption of herbicide paraquat from an aqueous solution. The characterization of zeolite LTL has been carried out through various techniques: X-ray diffraction, X-ray fluorescence spectroscopy, Fourier transform infrared spectroscopy and surface analysis. The adsorption occurred through cation exchange and the results showed that the adsorption capacity of paraquat onto K_LTL (161.71 mg/g) is higher than H_LTL (25.67 mg/g). These results can be explained by the amount of Al in the structure of zeolite and affinities of negative sites in zeolite and extra-framework cations (K+ and H+). The equilibrium data was best adjusted using the Langmuir model which has high correlation coefficient values (0.99).

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