Characterisation of hexagonal birnessite with a new and rapid synthesis method-comparison with traditional synthesis.

ABSTRACT: Birnessite is one of the most important manganese oxides that can control the geochemical behaviors of pollutants or can be applied to form industrial products. Many studies have been conducted on the synthesis of hexagonal birnessite because different synthesis methods can affect the structural, morphological, and physicochemical properties of hexagonal birnessite. However, there are still some defects in these synthesis methods. Therefore, a new synthesis method that is rapid, simple, and low-cost was proposed in this study involving the reduction of KMnO₄ by H₂O₂ in a H₂SO₄ solution without controlling the pH, temperature and pressure. Using a series of XRD, chemical composition, AOS, SSA, SEM, FTIR, and TGA analyses, Bir-H₂

SUBMITTER: Qin Z 

PROVIDER: S-EPMC9070366 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature