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An Optimal Study of the Preparation Conditions of Urea-Modified Titanium Ore Adsorbent

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Abstract:

The four main effect production factors, doping rate, calcination temperature, soaking time and heating rate, are chose to design experiments based on the orthogonal table L9(34) to prepare urea-modified titanium ore (UTO) sorbents. And the decoloration efficiency of methyl orange is examined by using UTO as sorbents under dark-state absorption. Based on the orthogonal experiments, we obtained the optimal operating parameters: urea 8.0wt%, soaking time 3h, calcination temperature 300°C and heating rate 10°C/min. As the preparation condition was run at the optimal conditions, the decoloration efficiency of methyl orange reached 98.1%, which was significantly better than the undoped samples. Thus, it is feasible to treat dye wastewater by these UTO sorbents.

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Periodical:

Advanced Materials Research (Volume 499)

Pages:

380-383

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.499.380

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Online since:

April 2012

Authors:

Xue Fei Lei, Xiang Xin Xue, He Yang, Xiao Qian Xia

Keywords:

Decoloration Efficiency, Methyl Orange (MO), Orthogonal Test, Urea-Modified Titanium Ore (UTO)

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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