Dye Adsorption on Inorganic Matrices as a New Strategy to Gas Capture: Hydrogen Sulfide Adsorption on Rodhamine B Modified Kaolinite

• Published in: Synthesis and reactivity in inorganic, metal-organic, and nano-metal chemistry Vol. 44; no. 10; pp. 1398 - 1400
• Main Authors: Batista, Luiz C. D., de S. Dantas, Deyse, de Farias, Robson F.
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 26-11-2014
• Subjects: Adsorption; Cation exchanging; Diffraction; Hydrogen sulfide; ion exchange kaolinite; Kaolinite; Rhodamine; Rhodamine B; Strategy; Synthesis
• ISSN: 1553-3174; 1553-3182
• DOI: 10.1080/15533174.2013.802344

In this communication, the synthesis, characterization, and hydrogen sulfide (H
2
S) adsorption of Rhodamine B modified kaolinite are reported. The modified matrices were prepared by a cation exchange process. The pure and modified matrices were characterized by X-ray diffractometry, FTIR-spectroscopy, and thermogravimetry. The total amount of adsorbed H
2
S (gravimetric data) can be described as: pure kaolinite (2.6 mg/g) and Rodhamine B modified kaolinite (10.1 mg/g). So, the H
2
S adsorption capacity of kaolinite is increased by almost 300% by Rhodamine B modification.