Physical-chemical Characterization of Nano-Zinc Oxide/Activated Carbon Composite for Phenol Removal from Aqueous Solution

Oil palm shell was used as a precursor for preparation of activated carbon using different chemical activations (potassium hydroxide (KOH), zinc chloride (ZNCl2), and phosphoric acid (H3PO4)). Each activated carbons (AC) was mixed with nano-zinc oxide to form a composite. From the gas sorption analy...

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Main Authors: Allwar, Allwar (Author), Setyani, Asih (Author), Sugesti, Ulul (Author), Fauzani, Khusna Afifah (Author)
Format: EJournal Article
Published: Department of Chemical Engineering - Diponegoro University, 2021-03-31.
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LEADER 02848 am a22002773u 4500
001 BCREC_UNDIP_10282_5330
042 |a dc 
100 1 0 |a Allwar, Allwar  |e author 
700 1 0 |a Setyani, Asih  |e author 
700 1 0 |a Sugesti, Ulul  |e author 
700 1 0 |a Fauzani, Khusna Afifah  |e author 
245 0 0 |a Physical-chemical Characterization of Nano-Zinc Oxide/Activated Carbon Composite for Phenol Removal from Aqueous Solution 
260 |b Department of Chemical Engineering - Diponegoro University,   |c 2021-03-31. 
500 |a https://ejournal2.undip.ac.id/index.php/bcrec/article/view/10282 
520 |a Oil palm shell was used as a precursor for preparation of activated carbon using different chemical activations (potassium hydroxide (KOH), zinc chloride (ZNCl2), and phosphoric acid (H3PO4)). Each activated carbons (AC) was mixed with nano-zinc oxide to form a composite. From the gas sorption analyzer, it is showed that nitrogen adsorption isotherms show Type II for ZnO/AC-KOH and ZnO/AC-ZnCl2 corresponding to the micro- and mesoporous structures, respectively. However, the nitrogen adsorption isotherm of ZnO/AC-H3PO4 exhibits the Type I with predominantly microporous structures. The SEM micrographs produced unsmooth surface and different pore sizes. The XRD patterns at 2θ of 25.06° and 26.75° were come from amorphous activated carbon. The peak intensity of ZnO was weak due to low concentration of zinc precursor. However, the ZnO of ZnO/AC-ZnCl2 showed strongly peak intensity. The effectiveness of the composites was examined for phenol removal determined by UV-Vis Spectrophotometer method. The equilibrium adsorption follows the Langmuir and Freundlich models according to the best correlation coefficient (R2). The kinetic model was only obtained for the pseudo-second-order with the best linearity of the correlation coefficient (R2). The results of this study showed that the oil palm shell has a great potential for ZnO/AC with excellent adsorptive property. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).  
540 |a Copyright (c) 2021 by Authors, Published by BCREC Group 
540 |a https://creativecommons.org/licenses/by-sa/4.0 
546 |a eng 
690 |a Oil palm shell; Activated carbon; Zinc oxide; Phenol; Langmuir and Freundlich 
655 7 |a info:eu-repo/semantics/article  |2 local 
655 7 |a info:eu-repo/semantics/publishedVersion  |2 local 
655 7 |2 local 
786 0 |n Bulletin of Chemical Reaction Engineering & Catalysis; 2021: BCREC Volume 16 Issue 1 Year 2021 (March 2021); 136-147 
786 0 |n 1978-2993 
787 0 |n https://ejournal2.undip.ac.id/index.php/bcrec/article/view/10282/5330 
856 4 1 |u https://ejournal2.undip.ac.id/index.php/bcrec/article/view/10282/5330  |z Get Fulltext