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- Title
Competitive Removal of Cationic Dye Using NiAl-LDH Modified with Hydrochar.
- Authors
Normah; Palapa, Neza Rahayu; Taher, Tarmizi; Mohadi, Risfidian; Arsyad, Fitri Suryani; Priambodo, Aldi; Lesbani, Aldes
- Abstract
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.
- Subjects
BASIC dyes; HYDROCHARA; LANGMUIR isotherms; MALACHITE green; METHYLENE blue
- Publication
Ecological Engineering & Environmental Technology (EEET), 2021, Vol 22, Issue 4, p124
- ISSN
2719-7050
- Publication type
Article
- DOI
10.12912/27197050/138120