Highly effective removal of Cu(II) in aqueous solution by using mesoporous TiO2 | Zendy

Daying Chen | Zendy; Nasi Tu | Zendy; Changkun Si | Zendy; Meilin Yin | Zendy; Xiaohui Wang | Zendy

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Highly effective removal of Cu(II) in aqueous solution by using mesoporous TiO2

Author(s) -

Daying Chen,

Nasi Tu,

Changkun Si,

Meilin Yin,

Xiaohui Wang

Publication year - 2019

Publication title -

water science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.406

H-Index - 137

eISSN - 1996-9732

pISSN - 0273-1223

DOI - 10.2166/wst.2019.327

Subject(s) - mesoporous material , adsorption , endothermic process , aqueous solution , langmuir adsorption model , chemistry , kinetics , chemical engineering , nuclear chemistry , chromatography , materials science , inorganic chemistry , organic chemistry , catalysis , physics , quantum mechanics , engineering

Mesoporous TiO 2 has been prepared by a brief and simple sol-gel processing and applied for the removal of Cu(II) from aqueous solution. The adsorption behavior of mesoporous TiO 2 for Cu(II) was investigated using batch experiments. Results showed that the pseudo-second-order model and Langmuir isotherm were more accurate to describe the kinetics process and adsorption isotherm. Mesoporous TiO 2 adsorbent displayed excellent Cu(II) adsorption efficiency (195.52mg g -1 ). The thermodynamic parameters showed that the adsorption was spontaneous and endothermic. It was also found that mesoporous TiO 2 could be used at least seven times without obvious loss of its original adsorption efficiency. Therefore, the obtained mesoporous TiO 2 could be employed as an effective and low-cost adsorbent for removal of Cu(II) from contaminated effluents.

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