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Separation Science and Technology Volume 55, 2020 - Issue 4
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Adsorption

Effects of calcination temperature on organic functional groups of TiO2 and the adsorption performance of the TiO2 for methylene blue

Jiangtao FengDepartment of Environmental Science and Engineering, Xi′an Jiaotong University, Xi′an, P.R. ChinaView further author information
,
Yunpeng LiuDepartment of Environmental Science and Engineering, Xi′an Jiaotong University, Xi′an, P.R. ChinaView further author information
,
Lin ZhangDepartment of Environmental Science and Engineering, Xi′an Jiaotong University, Xi′an, P.R. ChinaView further author information
,
Jinwei ZhuDepartment of Environmental Science and Engineering, Xi′an Jiaotong University, Xi′an, P.R. China;Shaanxi Electrical Equipment Institution, Xi′an, P.R. ChinaView further author information
,
Jie ChenDepartment of Environmental Science and Engineering, Xi′an Jiaotong University, Xi′an, P.R. ChinaView further author information
,
Hao XuDepartment of Environmental Science and Engineering, Xi′an Jiaotong University, Xi′an, P.R. ChinaView further author information
,
Honghui YangDepartment of Environmental Science and Engineering, Xi′an Jiaotong University, Xi′an, P.R. ChinaView further author information
&
Wei YanDepartment of Environmental Science and Engineering, Xi′an Jiaotong University, Xi′an, P.R. ChinaCorrespondence[email protected]
View further author information
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Pages 672-683 | Received 29 Jan 2018, Accepted 22 Jan 2019, Published online: 12 Feb 2019
 
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ABSTRACT

Herein, TiO2 was prepared by the hydrolysis method in critic acid (with both carboxyl and hydroxyl groups) solution firstly. And then, the as-prepared TiO2 was calcined at 50, 150, 250, 350, and 450°C, respectively, in order to investigate the effects of the calcination temperature on the physicochemical property and the adsorption performance of TiO2. The adsorption performance of the prepared TiO2 samples for cationic dye-Methylene Blue (MB) was also studied. The results indicated that high calcination temperature can destroy the organic moieties on the TiO2 samples and further influence the adsorption performance of TiO2 for the removal of cationic dye-MB.

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

Supplemental data for this article can be accessed here.

Additional information

Funding

This study was funded by the National Natural Science Foundation of China (grant number 21307098 and 21507104), the Shaanxi Key Research and Development Program, China (grant number 2017SF-386), and the Fundamental Research Funds for the Central Universities of China.

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