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PREPARASI DAN KARAKTERISASI KOMPOSIT CUAL-LDH/HYDROCHAR DARI PENNISETUM SETASEUM SEBAGAI PENGADSORPSI CONGO RED DALAM MEDIUM AIR

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A CuAl-layered double hydroxide/hydrochar (CuAl-LDH/HC) composite derived from Pennisetum setaceum was synthesized and evaluated for Congo Red (CR) removal from aqueous solutions. Hydrochar was prepared via hydrothermal carbonization and subsequently integrated with CuAl-LDH using a coprecipitation method. Structural and surface properties were characterized by XRD, FT-IR, SEM-EDX, and BET analysis. Batch adsorption studies were conducted to investigate the effects of pH, contact time, initial dye concentration, and temperature. The adsorption process followed a pseudo-second-order kinetic model and was best described by the Langmuir isotherm, indicating monolayer adsorption on a homogeneous surface. Thermodynamic analysis revealed that CR adsorption onto the CuAl-LDH/HC composite was spontaneous and endothermic in nature. Regeneration experiments demonstrated good structural stability and reusability of the composite over multiple cycles. The enhanced adsorption performance is attributed to the synergistic interaction between the layered structure of LDH and the porous carbon matrix of hydrochar. These results suggest that CuAl-LDH/HC is a promising sustainable adsorbent for anionic dye removal in wastewater treatment Keyword: layered double hydroxide, Hydrochar, Pennisetum Setaceum, Congo Red, Adsorption

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Detail Information

Series Title

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Call Number

T1909092026

Publisher

Indralaya : Prodi Magister Ilmu Material, Sekolah Pascasarjana Universitas Sriwijaya., 2025

Collation

xvii, 108 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

544.607

Content Type

Text

Media Type

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Carrier Type

-

Edition

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Subject(s)

Prodi Magister Ilmu Material
Senyawa logam

Specific Detail Info

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Statement of Responsibility

TUTI

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