Effects of Ni–TiO2 Pillared Clay–Montmorillonite Composites for Photocatalytic Enhancement Against Reactive Orange Under Visible Light

Autor: L O A Salim, Yulianti Ika Putri, Maulidiyah Maulidiyah, Faizal Mustapa, Dwiprayogo Wibowo, Muhammad Natsir, Zul Arham, Irwan Irwan, Muhammad Nurdin, Thamrin Azis, Catherina M. Bijang
Rok vydání: 2021
Předmět:
Zdroj: Journal of Inorganic and Organometallic Polymers and Materials. 31:3378-3388
ISSN: 1574-1451
1574-1443
DOI: 10.1007/s10904-021-01980-9
Popis: In this study, a composite material based on Ni–TiO2 Pillared Clay-Montmorillonite (Ni–TiO2/CMMT) was synthesized using the sol–gel method at room temperature and studied its photocatalytic performance under visible light irradiation for dye removal of Orange Reactive 84 (RO 84). The photocatalytic parameters studied were the effect of pH, contact time, mass of composite and the amount of Ni–TiO2/CMMT. SEM–EDS analysis showed that the composite surface consisted of aggregates with a small particle size of about 0.28 µm. Other results showed that the main chemical elements of the composite are Si, Al, O, C, Na, Ni and Ti. This was confirmed by the results of FTIR analysis which showed specific absorption for the Si–O–Si, Si–O–Al, Al–OH, Ti–O and Ni–O groups. Another characteristic of the compositing components was the band gap value of 2.91 eV which can be active in visible light irradiation. Based on the photocatalyst performance test, the composite significantly reduced the amount of RO 84 dye. The optimum pH obtained in this test was acidic (pH 5), with a color change efficiency of 63.66% for a contact time of 45 min.
Databáze: OpenAIRE
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