Palapa, Neza Rahayu and Novie Juleanti, and Normah, and Mohadi, Risfidian and Rachmat, Addy and Lesbani, Aldes and Taher, Tarmizi (2022) Adsorptive performance of congo red using copper-aluminum LDHS load to rice husk biochar. Sains Malaysiana, 51 (1). pp. 161-173. ISSN 0126-6039
|
PDF
1MB |
Official URL: https://www.ukm.my/jsm/malay_journals/jilid51bil1_...
Abstract
This work aimed that CuAl layered double hydroxide (LDH) is loaded to biochar to form CuAlLDH@BC composites by co-precipitation methods. CuAlLDH@BC composite was prepared and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, surface area specific analysis BET method, thermalgravimetric, and scanning electron microscopy (SEM) for morphological analysis. CuAlLDH@BC composite used as adsorbent for the removal of Congo red. The adsorption ability of CuAlLDH@BC composite evaluated by pseudo-second-order kinetic model, with Qecalculated and Qeexperimental of the composite were closed (47.619 and 46.143 mg/g, respectively). Furthermore, the adsorption conducts were more consistent with the Langmuir isotherm model, than the Freundlich isotherm model. The isotherm adsorption data obtained the maximum adsorption capacity was 61.350 mg/g. Thermodynamic studies illustrated the endothermic nature of CuAlLDH@BC, as well as the fact that the adsorption process is spontaneous. Thus, CuAlLDH@BC showed a high reusability performance even after third cycle of adsorption-desorption process.
Item Type: | Article |
---|---|
Keywords: | Adsorption; Biochar; Composite; Congo red; Layered double hydroxide |
Journal: | Sains Malaysiana |
ID Code: | 18355 |
Deposited By: | ms aida - |
Deposited On: | 06 Apr 2022 05:49 |
Last Modified: | 11 Apr 2022 06:21 |
Repository Staff Only: item control page