Low-valent manganese active sites: Insight into reinforced interaction with sulfonated anthraquinone dye and kinetic adsorption studies over iron-modified cryptomelane

Low-valent manganese active sites: Insight into reinforced interaction with sulfonated anthraquinone dye and kinetic adsorption studies over iron-modified cryptomelane

This study presents a facial co-precipitation method to enrich low-valent manganese sites for iron-doped cryptomelane. Fourier-transform infrared spectroscopy exhibits a noticeable enhancement of both vibrations at 1041 and 1116 cm-1 ascribed to Mn3+-OH bond over as-prepared materials. X-ray diffrac...

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Bibliographic Details
Main Authors: Quoc-Dat Le, Thanh-Thao Pham-Ngoc, Ngoc-Thien Nguyen, Nhat-Truong Truong, Hai-Nam Tran, Dung Van Nguyen, Tuyet-Mai Tran-Thuy
Format: Article
Language:English
Published: Elsevier 2024-11-01
Series:Chemical Engineering Journal Advances
Subjects:
Fe-doped cryptomelane
Oxygen vacancies
Manganese oxide
Acid blue 62
Elovich and Langmuir isotherm models
Chemisorption
Online Access:http://www.sciencedirect.com/science/article/pii/S2666821124000826
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