Aishah Abdul Jalil
Institute of Hydrogen Economy, Department of Chemical Engineering, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru,

Published : 5 Documents
Articles

Found 5 Documents
Search

METHYLENE BLUE ADSORPTION ONTO COCKLE SHELLS-TREATED BANANA PITH: OPTIMIZATION, ISOTHERM, KINETIC, AND THERMODYNAMIC STUDIES Hasan, Rosalyza; Ying, Wong Jie; Cheng, Chong Chi; Jaafar, Nur Farhana; Jusoh, Rohayu; Jalil, Aishah Abdul; Setiabudi, Herma Dina
Indonesian Journal of Chemistry Vol 20, No 2 (2020)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.42822

Abstract

Two low-cost wastes, banana pith (BP) and cockle shells (CS) were explored towards methylene blue (MB) removal. The performance of cockle shells-treated banana pith (CS-BP) in MB removal was compared with untreated BP and commercially Ca(OH)2-treated BP (Ca(OH)2-BP). The adsorption efficacy was following the order of BP < CS-BP < Ca(OH)2-BP, indicating the positive role of alkaline treatment towards MB removal and great potential of CS as a low-cost activation material. The optimization of MB removal onto CS-BP was executed by response surface methodology (RSM) with three independent variables (adsorbent dosage (X1), initial pH (X2) and initial MB concentration (X3)), and the optimal condition was achieved at X1 = 1.17 g/L, X2 = pH 7 and X3 = 214 mg/L, with 87.32% of predicted MB removal. The experimental data well-fitted the pseudo-second-order kinetic (R2 > 0.99) and the Langmuir isotherm (R2 = 0.999) models, demonstrating the chemisorption and naturally homogeneous process. Thermodynamics study discovered that the MB removal by CS-BP is endothermic, feasible, spontaneous and randomness growth at a solid-solute interface. It is affirmed that CS could be employed as a low-cost activation material and CS-BP as a low-cost adsorbent.
SYNTHESIS OF CAOZNO NANOPARTICLES CATALYST AND ITS APPLICATION IN TRANSESTERIFICATION OF REFINED PALM OIL Yulianti, Cicik Herlina; Ediati, Ratna; Hartanto, Djoko; Purbaningtias, Tri Esti; Chisaki, Yoshifumi; Jalil, Aishah Abdul; Che Ku Hitam, Che Ku Nor Liana; Prasetyoko, Didik
Bulletin of Chemical Reaction Engineering & Catalysis 2014: BCREC Volume 9 Issue 2 Year 2014 (SCOPUS Indexed, August 2014)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (524.493 KB) | DOI: 10.9767/bcrec.9.2.5998.100-110

Abstract

The CaOZnO nanoparticle catalysts with Ca to Zn atomic ratios of 0.08 and 0.25 have been successfully synthesized by co-precipitation method. The catalyst was characterized by X-ray Diffraction (XRD) analysis provided with Rietica and Maud software, Scanning Electron Microscopy (SEM) and Fourier Transform Infrared spectroscopy (FT-IR), and its properties was compared with bare CaO and ZnO catalysts. The phase composition estimated by Rietica software revealed that the CaO catalyst consists of CaO and CaCO3 phases. The estimation of the particle size by Maud software, showed that the particle size of all catalysts increased by the following order: ZnO. © 2014 BCREC UNDIP. All rights reservedReceived: 1st January 2014; Revised: 10th March 2014; Accepted: 18th March 2014[How to Cite: Yulianti, C.H., Ediati, R., Hartanto, D., Purbaningtias, T.E., Chisaki, Y., Jalil, A.A., Hitam, C.K.N.L.C.K., Prasetyoko, D., (2014). Synthesis of CaOZnO Nanoparticles Catalyst and Its Application in Transesterification of Refined Palm Oil. Bulletin of Chemical Reaction Engineering & Catalysis, 9 (2): 100-110. (doi:10.9767/bcrec.9.2.5998.100-110)][Permalink/DOI: http://dx.doi.org/10.9767/bcrec.9.2.5998.100-110]
Catalytic CO Methanation over Mesoporous ZSM5 with Different Metal Promoters Teh, Lee Peng; Triwahyono, Sugeng; Jalil, Aishah Abdul; Setiabudi, Herma Dina; Abdul Aziz, Muhammad Arif
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 1 Year 2019 (SCOPUS and Web of Science Indexed, April 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4606.645 KB) | DOI: 10.9767/bcrec.14.1.3618.228-237

Abstract

The carbon monoxide methanation has possessed huge potential as an effective method to produce synthetic natural gas (SNG). The basic requirements such as high catalytic activity at low temperatures (<500 °C) and high stability throughout all temperatures is needed for an ideal methanation catalysts. The ultimate goal of the study is to examine the influential of different metal promoters towards catalytic properties and catalytic CO methanation performance. A series of metal promoters (Rh, Co, Pd and Zn) mesoporous ZSM5 were synthesized using an incipient-wetness impregnation method and evaluated for catalytic CO methanation. XRD analysis showed that only metal oxides and no metallic phase of Rh, Co, Pd, and Zn were observed. The nitrogen physisorption analysis showed that mZSM5 possessed high surface area and micro-mesoporosity with intra- and interparticle pores. FESEM analysis illustrated that mZSM5 had typical coffin-type morphology and Rh metal dispersed on the surface of the support was confirmed by EDX analysis. Moreover, Rh (CO conversion = 95%, CH4 yield = 82%) and Co (CO conversion = 91%, CH4 yield = 71%) promoters showed significant improvement in CO methanation. On the other hand, Pd (CO conversion = 18%, CH4 yield = 12%) and Zn (CO conversion = 10%, CH4 yield = 9%) promoters had only low benefit to the CO methanation. This study affirmed that the catalytic activity of CO methanation was influenced by the variation in the type of metal loading due to different nature of metallic phases and their synergistic interaction with the supporting material. Copyright © 2019 BCREC Group. All rights reserved 
Direct Synthesis of Sodalite from Indonesian Kaolin for Adsorption of Pb2+ Solution, Kinetics, and Isotherm Approach Wahyuni, Tri; Prasetyoko, Didik; Suprapto, Suprapto; Qoniah, Imroatul; Bahruji, Hasliza; Dawam, Ahmad Anwarud; Triwahyono, Sugeng; Jalil, Aishah Abdul
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (SCOPUS and Web of Science Indexed, December 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.528 KB) | DOI: 10.9767/bcrec.14.3.2939.502-512

Abstract

Indonesian kaolin was used as precursor for synthesis of sodalite. Synthesis parameters were optimized by varying the Si/Al ratios, stirring and aging conditions, and water composition. X-ray diffraction (XRD), Fourier Transform Infra Red (FTIR), Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX), and Particle Size Analyzer (PSA) were used to characterize sodalite. The potential of sodalite as adsorbent for heavy metal Pb2+ ions removal from waste water was investigated in this work. The uptake adsorption capacities of sodalite was 90-100 mg/g from synthesized sodalite crystallized for 24 and 48 hours, and commercial silica. The kinetic of Pb2+ adsorption was a pseudo second order reaction and the adsorption coefficients was followed Langmuir adsorption isotherm. Copyright © 2019 BCREC Group. All rights reserved
Esterification of Benzyl Alcohol with Acetic Acid over Mesoporous H-ZSM-5 Kusumaningtyas, Desy Tri; Prasetyoko, Didik; Suprapto, Suprapto; Triwahyono, Sugeng; Jalil, Aishah Abdul; Rosidah, Afifah
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 2 Year 2017 (SCOPUS and Web of Science Indexed, August 2017)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (163.504 KB) | DOI: 10.9767/bcrec.12.2.806.243-250

Abstract

In this study, the performance of mesoporous ZSM-5 has been studied on the esterification of acetic acid (AA) with benzyl alcohol (BA). The mesoporous ZSM-5 catalyst has been synthesized with the variation of aging time i.e. 6, 12, and 24 hours at the same temperature, 70 °C. The cation exchange of Na-ZSM-5 to H-ZSM-5 was performed before the catalytic activity test. The acidity type and amount of solids were determined by FT-IR spectroscopy using pyridine as a probe molecule. The characterization by pyridine adsorption showed that at a higher mesoporous surface area, the number of Lewis acid was increased. The highest mesoporous surface area, Lewis, and Brönsted acid sites were obtained by sample which has the lowest crystallinity, i.e. 255.78 m2/g, 0.2732 mmol/g, and 0.20612 mmol/g, respectively. Influence of mesoporous volume was studied on the catalytic activity of the mesoporous ZSM-5 in the esterification reaction. Conversion of acetic acid in the esterification reaction for samples of    HZ-6, HZ-12, and HZ-24 were obtained by titration methods, i.e. 39.59, 36.39, and 32.90 %, respectively. Hence, the reaction temperature of 393 K, molar ratio 1:4 (AA:BA) and catalyst loading 5 % were selected as an optimum reaction parameters. Copyright © 2017 BCREC Group. All rights reservedReceived: 21st November 2016; Revised: 1st February 2017; Accepted: 18th February 2017How to Cite: Kusumaningtyas, D.T., Prasetyoko, D., Suprapto, Triwahyono, S., Jalil, A.A., Rosidah, A. (2017). Esterification of Benzyl Alcohol with Acetic Acid over Mesoporous H-ZSM-5. Bulletin of Chemical Reaction Engineering & Catalysis, 12 (2): 243-250 (doi:10.9767/bcrec.12.2.806.243-250)Permalink/DOI: http://dx.doi.org/10.9767/bcrec.12.2.806.243-250