Competitive Removal of Cationic Dye Using NiAl-LDH Modified with Hydrochar

In this study, NiAl-LDH was modified with hydrochar using the NiAl-Hydrochar composite coprecipitation method. Materials were characterized by XRD and FT-IR analysis. XRD diffractogram and FT-IR spectra show that the NiAl-Hydrochar composite material has the characteristics of the precursors. NiAl-...

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Bibliographic Details
Published inEcological Engineering & Environmental Technology Vol. 22; no. 4; pp. 124 - 135
Main Authors Normah, Normah, Palapa, Neza, Taher, Tarmizi, Mohadi, Risfidian, Arsyad, Fitri, Priambodo, Aldi, Lesbani, Aldes
Format Journal Article
LanguageEnglish
Published Polish Society of Ecological Engineering (PTIE) 01.07.2021
Subjects
cationic dye
composite
hydrochar
layered double hydroxide
selectivity
stability
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Summary:In this study, NiAl-LDH was modified with hydrochar using the NiAl-Hydrochar composite coprecipitation method. Materials were characterized by XRD and FT-IR analysis. XRD diffractogram and FT-IR spectra show that the NiAl-Hydrochar composite material has the characteristics of the precursors. NiAl- Hydrochar composite materials have a large adsorption capacity to adsorb cationic dyes. The adsorption follows the Langmuir adsorption isotherm model with the maximum capacity (Qmax) of the NiAl-Hydrochar composite material reaching 256.410 mg/g for malachite green and the adsorption process takes place spontaneously and endothermically. The regeneration process of NiAl-Hydrochar composites was more stable and the decrease was not significant (>70%). The selectivity of the dye mixture showed that the adsorbent was more selective for malachite green dye compared to methylene blue and rhodamine-B.
ISSN:2719-7050
2719-7050
DOI:10.12912/27197050/138120