铁酸镁光催化剂合成与多种染料降解活性对比研究

doi:10.11962/1006-4990.2019-0653

Abstract

Abstract:

Magnesium ferrite photocatalyst was synthesized by hydrothermal method with magnesium nitrate,iron nitrate and sodium hydroxide as initial materials.X-ray powder diffraction（XRD） and X-ray photoelectron spectroscopy（XPS） analysis showed that the synthesized magnesium ferrite was a pure cubic phase with a space group of Fd-3m（227） and a grain size of about 25 nm.Through the analysis of optical properties,it was found that the photocatalyst of magnesium ferrite had strong light absorption capacity at 200~700 nm,and its energy band value was about 2.11 eV.The photocatalytic degradation effici-ency of methyl blue,Rhodamine B and methyl orange of magnesium ferrite photocatalyst was studied.Photocatalytic experi-ments showed that magnesium ferrite photocatalyst had the best degradation efficiency for the methyl blue,the best catalyst dosage was 2.5 g/L,and the best dye concentration was 200 mg/L.

Key words: hydrothermal method, magnesium ferrite, photocatalyst, degradation efficiency, dye concentration

CLC Number:

TQ132.2

Liu Ying. Synthesis of magnesium ferrite photocatalyst and degradation activity of various dyes[J]. Inorganic Chemicals Industry, 2020, 52(11): 103-107.

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Synthesis of magnesium ferrite photocatalyst and degradation activity of various dyes

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