Synthesis of β-FeOOH/polyaniline heterogeneous catalyst for efficient photo-Fenton degradation of AOII dye

Synthesis of β-FeOOH/polyaniline heterogeneous catalyst for efficient photo-Fenton degradation of AOII dye

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Published in:Environmental science and pollution research. - Springer Berlin Heidelberg, 1994. - 30(2023), 21 vom: 01. Apr., Seite 59366-59381
Main Author: Xiong, Huixin (Author)
Other Authors: Shi, Kun (Author) Han, Jie (Author) Cui, Can (Author) Liu, Yang (Author) Zhang, Bailin (Author)
Format: electronic Article
Language:English
Published: 2023
ISSN:1614-7499
External Sources:lizenzpflichtig
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520 |a Abstract Discharge of the untreated dye-containing wastewaters will induce water source pollution and further harm aquatic organisms. In this study, the akaganéite/polyaniline catalyst (β-FeOOH/PANI, about 1.0 μm) could be successfully composed by polyaniline (PANI, ($ C_{6} $$ H_{7} $N)n, 200–300 nm) and akaganéite (β-FeOOH, FeO(OH)1−x$ Cl_{x} $, less than 200 nm), according to the identification and characterization results of XRD, Ramon, FTIR, XPS, SEAD, EDS, and FESEM (or HRTEM). Due to PANI providing more photogenerated electrons, the β-FeOOH/PANI composite (compared with β-FeOOH) in photo-Fenton system had the more highly catalytic degradation capacity to Acid Orange II (AOII) under an optimal condition (7.5 mmol/L of $ H_{2} $$ O_{2} $ oxidant, 40 mg/L of AOII, 0.2 g/L of catalyst dosage, and pH 4.0). The AOII degradation kinetics could be well fitted by pseudo-first-order model. In photo-Fenton catalytic process of AOII dye, the ∙OH and $ h^{+} $ were the main reaction substances. The AOII in solutions could be gradually mineralized into non-toxic inorganic $ H_{2} $O molecule and $ CO_{2} $. The β-FeOOH/PANI catalyst also had a good reusable ability of about 91.4% AOII degradation after 4 runs. These results can provide a reference for synthesis of catalyst used in photo-Fenton system and the applications in degradation removal of organic dye from wastewaters. 
650 4 |a Degradation 
650 4 |a Organic dye 
650 4 |a Polyaniline 
650 4 |a β-FeOOH 
650 4 |a Photo-Fenton system 
700 1 |a Shi, Kun  |4 aut 
700 1 |a Han, Jie  |4 aut 
700 1 |a Cui, Can  |4 aut 
700 1 |a Liu, Yang  |4 aut 
700 1 |a Zhang, Bailin  |4 aut 
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