Study on adsorption kinetics and adsorptive property of UiO-66(Zr) for As³⁺

Authors

YU Yang, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
CHEN Tuanwei, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
ZHEN Wenbo, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
LU Ju, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
ZHANG Jinliang, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
KANG Binbin, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Fujian Bio-engineering Professional Technology Institute, Fuzhou, Fujian 350002, China

Abstract

In the present study, A new type metal organic framework (MOFs) UiO-66(Zr) was used as the adsorbent to study the influence on adsorption of As³⁺, including the adsorption time,temperature, and solution pH, and an adsorption kinetics model of As³⁺ was established through the researches on adsorption isotherm and adsorption kinetics. Our results showed that the new material UiO-66(Zr) has a high absorptivity for As³⁺ in wide-scope pH value solutions and the best pH value is 6.0. Excellent adsorptive property was found when using the solutions with the initial concentration ranging from 10 to 60 μg/L, and the UiO-66(Zr) adsorption rate can reach to about 99%. Researchs on adsorption isotherm and adsorption kinetics showed that the adsorption process of new material UiO-66(Zr) for As³⁺ was consistent well with the Langmuir model in thermodynamics, a monolayer adsorption one. Meanwhile, pseudo-second order kinetic model could fit the adsorption process (R²=1.000) very well. Thus, we supposed that the new material UiO-66(Zr) might be used as a good adsorbent for As³⁺ adsorption, separation and enrichment.

Publication Date

6-28-2016

First Page

61

Last Page

67

DOI

10.13652/j.issn.1003-5788.2016.06.015

Recommended Citation

Yang, YU; Tuanwei, CHEN; Wenbo, ZHEN; Ju, LU; Jinliang, ZHANG; and Binbin, KANG (2016) "Study on adsorption kinetics and adsorptive property of UiO-66(Zr) for As³⁺," Food and Machinery: Vol. 32: Iss. 6, Article 15.
DOI: 10.13652/j.issn.1003-5788.2016.06.015
Available at: https://www.ifoodmm.cn/journal/vol32/iss6/15

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