Bromate removal by Fe(ii)–akaganeite (β-FeOOH) modified red mud granule material. Issue 34 (17th March 2016)

• Record Type: Journal Article
• Authors: Chen, Sichen; Fang, Lei; Zhu, Qi; Li, Li; Xing, Zipeng
• Is Part Of: RSC advances. Volume 6:Issue 34(2016)
• Page Start: 28257
• Page End: 28262
• Publication Date: 2016-03-17
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra01206j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A multifunction red mud granule material was prepared and modified by Fe(ii )–akaganeite (β-FeOOH), which was applied to remove bromate from aqueous solution. Abstract : A multifunction red mud granule material was prepared and modified by Fe(ii )–akaganeite (β-FeOOH), which was applied to remove bromate from aqueous solution. According to the zeta-potential, scanning electron microscopy (SEM) and Brunauer–Emmett–Teller (BET) analysis, Fe(ii ) and akaganeite changed the zeta potentials and structural properties of the red mud granule material (RMGM), which caused Fe(ii )–akaganeite/RMGM to effectively remove bromate. The results of the experiments showed that the mechanism for bromate removal contained four actions: electrostatic adsorption and ligand exchange of Fe(ii )–akaganeite/RMGM with bromate, ion-exchange of akaganeite with bromate and reduction of bromate by Fe(ii ). The RMGM with 5.3% Fe loading exhibited the highest removal capacity.