α-FeOOH-Modified Sn/N-Codoped TiO2 Bifunctional Composites for As(III) Removal through Photocatalytic Oxidation and Simultaneous Adsorption
Juntao Wang,
Wenke Zhu,
Hanyu Liu
et al.
Abstract:Photocatalytic oxidation technology is one of the most efficient and green methods to convert highly toxic As(III) into lowly toxic As(V) for arsenic-polluted wastewater. However, the obtained As(V) may be reduced to As(III) again in the environment, causing secondary pollution. In order to resolve these issues, a bifunctional composite consisting of needle-like α-FeOOH-modified Sn/N-codoped TiO 2 granules (SNT-FeOOH) has been synthesized. After modifying, the band gap of SNT-FeOOH narrowed from 2.94 eV (SNT) … Show more
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