1
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Jusoh R, Jalil A, Triwahyono S, Idris A, Noordin M. Erratum to “Photodegradation of 2–chlorophenol over colloidal α–FeOOH supported mesostructured silica nanoparticles: Influence of a pore expander and reaction optimization” [Sep. Purif. Technol. 149 (2015) 55–64]. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2016.07.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Ghani N, Jalil A, Triwahyono S, Aziz M, Rahman A, Hamid M, Izan S, Nawawi M. Tailored mesoporosity and acidity of shape-selective fibrous silica beta zeolite for enhanced toluene co-reaction with methanol. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.09.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Fauzi AA, Jalil AA, Mohamed M, Triwahyono S, Jusoh NWC, Rahman AFA, Aziz FFA, Hassan NS, Khusnun NF, Tanaka H. Altering fiber density of cockscomb-like fibrous silica-titania catalysts for enhanced photodegradation of ibuprofen. J Environ Manage 2018; 227:34-43. [PMID: 30172157 DOI: 10.1016/j.jenvman.2018.08.073] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/05/2018] [Accepted: 08/16/2018] [Indexed: 06/08/2023]
Abstract
Fibrous silica-titania (FST) catalysts were synthesized by microemulsion followed by silica seed-crystal crystallization methods under various molar ratios of toluene to water (T/W). The catalysts were characterized by XRD, UV-DRS, FESEM, TEM, AFM, N2 adsorption-desorption, FTIR, and ESR. The results revealed that altering the T/W ratio affected the growth of the silica and titania and led to different size, fiber density, silica-titania structure, and number of hydroxyl groups, as well as oxygen vacancies in the FSTs, which altered their behavior toward subsequent application. Photodegradation of ibuprofen (IBP) are in the following order: FST(6:1) (90%) > FST(5:1) (84%) > FST(7:1) (79%) > commercial TiO2 (67%). A kinetics study using Langmuir-Hinshelwood model illustrated that the photodegradation followed the pseudo-first-order and adsorption was the rate-limiting step. Optimization by response surface methodology (RSM) showed that the pH, initial concentration, and catalyst dosage were the remarkable parameters in photodegradation of IBP. The FST (6:1) maintained its photocatalytic activities for up to five cycles reaction without serious catalyst deactivation, and was also able to degrade other endocrine-disrupting chemicals, indicating its potential use for the treatment of those chemicals in wastewater.
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Affiliation(s)
- A A Fauzi
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - A A Jalil
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia; Centre of Hydrogen Energy, Institute of Future Energy, 81310, UTM Johor Bahru, Johor, Malaysia.
| | - M Mohamed
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - S Triwahyono
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - N W C Jusoh
- Department of Chemical Process Engineering, Malaysia-Japan International Institute of Technology (MJIIT) Universiti Teknologi Malaysia, 54100, Kuala Lumpur, Malaysia
| | - A F A Rahman
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - F F A Aziz
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - N S Hassan
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - N F Khusnun
- Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
| | - H Tanaka
- Department of Chemical Engineering, Faculty of Engineering, Tokyo University of Agriculture and Technology, 183-0054, Fuchu, Tokyo, Japan
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Triwahyono S, Salamun N, Jalil AA, Izan SM, Setiabudi HD, Prasetyoko D. Zirconium-Loaded Mesostructured Silica Nanoparticles Adsorbent for Removal of Hexavalent Chromium from Aqueous Solution. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02167] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | - H. D. Setiabudi
- Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, 26300, Pahang Malaysia
| | - D. Prasetyoko
- Laboratory of Material Chemistry and Energy, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Surabaya, 60111, Indonesia
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Hassan N, Jalil A, Triwahyono S, Khusnun N, Izan S, Kidam K, Johari A. Synergistic effect of microwave rapid heating and weak mineralizer on silica-stabilized tetragonal zirconia nanoparticles for enhanced photoactivity of Bisphenol A. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.04.068] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Gambo Y, Jalil A, Triwahyono S, Abdulrasheed A. Recent advances and future prospect in catalysts for oxidative coupling of methane to ethylene: A review. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.10.027] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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7
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Hassan N, Jalil A, Triwahyono S, Hitam C, Rahman A, Khusnun N, Mamat C, Asmadi M, Mohamed M, Ali M, Prasetyoko D. Exploiting copper–silica–zirconia cooperative interactions for the stabilization of tetragonal zirconia catalysts and enhancement of the visible-light photodegradation of bisphenol A. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2017.10.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Leaw W, Mamat C, Triwahyono S, Jalil A, Bidin N. Liquid crystal physical gel formed by cholesteryl stearate for light scattering display material. J Colloid Interface Sci 2016; 483:41-48. [DOI: 10.1016/j.jcis.2016.08.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/08/2016] [Accepted: 08/10/2016] [Indexed: 10/21/2022]
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9
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Febriyanti E, Suendo V, Mukti RR, Prasetyo A, Arifin AF, Akbar MA, Triwahyono S, Marsih IN. Further Insight into the Definite Morphology and Formation Mechanism of Mesoporous Silica KCC-1. Langmuir 2016; 32:5802-11. [PMID: 27120557 DOI: 10.1021/acs.langmuir.6b00675] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The unique three-dimensional pore structure of KCC-1 has attracted significant attention and has proven to be different compared to other conventional mesoporous silica such as the MCM-41 family, SBA-15, or even MSN nanoparticles. In this research, we carefully examine the morphology of KCC-1 to define more appropriate nomenclature. We also propose a formation mechanism of KCC-1 based on our experimental evidence. Herein, the KCC-1 morphology was interpreted mainly on the basis of compiling all observation and information taken from SEM and TEM images. Further analysis on TEM images was carried out. The gray value intensity profile was derived from TEM images in order to determine the specific pattern of this unique morphology that is found to be clearly different from that of other types of porous spherical-like morphologies. On the basis of these results, the KCC-1 morphology would be more appropriately reclassified as bicontinuous concentric lamellar morphology. Some physical characteristics such as the origin of emulsion, electrical conductivity, and the local structure of water molecules in the KCC-1 emulsion were disclosed to reveal the formation mechanism of KCC-1. The origin of the KCC-1 emulsion was characterized by the observation of the Tyndall effect, conductometry to determine the critical micelle concentration, and Raman spectroscopy. In addition, the morphological evolution study during KCC-1 synthesis completes the portrait of the formation of mesoporous silica KCC-1.
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Affiliation(s)
- E Febriyanti
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia
| | - V Suendo
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia
| | - R R Mukti
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia
| | - A Prasetyo
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia
| | - A F Arifin
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia
| | - M A Akbar
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia
| | - S Triwahyono
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia
| | - I N Marsih
- Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, and ‡Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung , Jl. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia , 81310 UTM Johor Bahru, Johor, Malaysia
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Sidik S, Triwahyono S, Jalil A, Aziz M, Fatah N, Teh L. Tailoring the properties of electrolyzed Ni/mesostructured silica nanoparticles (MSN) via different Ni-loading methods for CO2 reforming of CH4. J CO2 UTIL 2016. [DOI: 10.1016/j.jcou.2015.12.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Salamun N, Triwahyono S, Jalil AA, Majid ZA, Ghazali Z, Othman NAF, Prasetyoko D. Surface modification of banana stem fibers via radiation induced grafting of poly(methacrylic acid) as an effective cation exchanger for Hg(ii). RSC Adv 2016. [DOI: 10.1039/c6ra03741k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A low cost adsorbent, banana stem fibers (BSFs), was used for modification by grafting with methacrylic acid via three free radical generation methods.
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Affiliation(s)
- N. Salamun
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- UTM
- 81310 Johor Bahru
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- UTM
- 81310 Johor Bahru
| | - A. A. Jalil
- Department of Chemical Engineering
- Faculty of Chemical and Energy Engineering
- Universiti Teknologi Malaysia
- UTM
- 81310 Johor Bahru
| | - Z. A. Majid
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- UTM
- 81310 Johor Bahru
| | - Z. Ghazali
- Malaysian Nuclear Agency
- Radiation Processing Technology
- Kajang
- Malaysia
| | - N. A. F. Othman
- Malaysian Nuclear Agency
- Radiation Processing Technology
- Kajang
- Malaysia
| | - D. Prasetyoko
- Department of Chemistry
- Institut Teknologi Sepuluh Nopember
- Surabaya 60111
- Indonesia
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12
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Firmansyah ML, Jalil AA, Triwahyono S, Hamdan H, Salleh MM, Ahmad WFW, Kadja GTM. Synthesis and characterization of fibrous silica ZSM-5 for cumene hydrocracking. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00106h] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fibrous silica ZSM-5 (FZSM-5) with a novel dendrimeric morphology was synthesized using a CTAB-based microemulsion system. The dendrimers increased the active site accessibility and enhanced the catalytic activity for large molecule hydrocracking and ethylbenzene dehydrogenation.
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Affiliation(s)
- M. L. Firmansyah
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Center of Hydrogen Economy
- Institute of Future Energy
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - H. Hamdan
- UTM Razak School of Engineering and Advanced Technology
- Universiti Teknologi Malaysia
- 54100 UTM Kuala Lumpur
- Malaysia
| | - M. M. Salleh
- Centre for Sustainable Nanomaterials
- Ibnu Sina Institute for Scientific and Industrial Research
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
| | - W. F. W. Ahmad
- Centre for Sustainable Nanomaterials
- Ibnu Sina Institute for Scientific and Industrial Research
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
| | - G. T. M. Kadja
- Department of Inorganic and Physical Chemistry
- Faculty of Mathematics and Natural Sciences
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
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13
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Khusnun NF, Jalil AA, Triwahyono S, Jusoh NWC, Johari A, Kidam K. Interaction between copper and carbon nanotubes triggers their mutual role in the enhanced photodegradation of p-chloroaniline. Phys Chem Chem Phys 2016; 18:12323-31. [DOI: 10.1039/c5cp08068a] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper (Cu, 1–5 wt%) was loaded onto carbon nanotubes (CNTs) by a simple electrochemical method.
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Affiliation(s)
- N. F. Khusnun
- Department of Chemical Engineering
- Faculty of Chemical and Energy Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Department of Chemical Engineering
- Faculty of Chemical and Energy Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - N. W. C. Jusoh
- Department of Environmental Engineering & Green Technology
- Malaysia-Japan International Institute of Technology
- Universiti Teknologi Malaysia Kuala Lumpur
- 54100 Kuala Lumpur
- Malaysia
| | - A. Johari
- Department of Chemical Engineering
- Faculty of Chemical and Energy Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - K. Kidam
- Department of Chemical Engineering
- Faculty of Chemical and Energy Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
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14
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Hitam CNC, Jalil AA, Triwahyono S, Ahmad A, Jaafar NF, Salamun N, Fatah NAA, Teh LP, Khusnun NF, Ghazali Z. Synergistic interactions of Cu and N on surface altered amorphous TiO2 nanoparticles for enhanced photocatalytic oxidative desulfurization of dibenzothiophene. RSC Adv 2016. [DOI: 10.1039/c6ra06684d] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Amorphous TiO2 (AT) nanoparticles were prepared by a simple sol–gel method and subsequent incorporation with 5–20 wt% copper via an electrochemical method in the presence of tetraethylammonium perchlorate gave an active CuO/TiO2 (CAT) photocatalyst.
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15
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Jusoh R, Jalil A, Triwahyono S, Idris A, Noordin M. Photodegradation of 2-chlorophenol over colloidal α-FeOOH supported mesostructured silica nanoparticles: Influence of a pore expander and reaction optimization. Sep Purif Technol 2015. [DOI: 10.1016/j.seppur.2015.05.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Kamarudin NHN, Jalil AA, Triwahyono S, Sazegar MR, Hamdan S, Baba S, Ahmad A. Elucidation of acid strength effect on ibuprofen adsorption and release by aluminated mesoporous silica nanoparticles. RSC Adv 2015. [DOI: 10.1039/c4ra16761a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Mesoporous silica nanoparticles (MSN) with 1–10 wt% loading of aluminum (Al) were prepared and characterized by XRD, N2 physisorption, 29Si and 27Al NMR, FT-IR and FT-IR preadsorbed pyridine.
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Affiliation(s)
- N. H. N. Kamarudin
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - M. R. Sazegar
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Hamdan
- Department of Biological Science
- Faculty of Bioscience and Bioengineering
- Universiti Teknologi Malaysia
- 81310 UTM Skudai
- Malaysia
| | - S. Baba
- Department of Biological Science
- Faculty of Bioscience and Bioengineering
- Universiti Teknologi Malaysia
- 81310 UTM Skudai
- Malaysia
| | - A. Ahmad
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
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17
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Abstract
Higher basicity of Ni/MSN suppressed the formation of deactivated carbon and contributed to a good stability in CO2 reforming of CH4.
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Affiliation(s)
- S. M. Sidik
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - T. A. T. Abdullah
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. Ripin
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
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18
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Jusoh R, Jalil AA, Triwahyono S, Kamarudin NHN. Synthesis of dual type Fe species supported mesostructured silica nanoparticles: synergistical effects in photocatalytic activity. RSC Adv 2015. [DOI: 10.1039/c4ra13837f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dual type Fe species (isomorphously substituted Fe species and a colloidal α-FeOOH (IS-FeOOH)) supported on mesostructured silica nanoparticles (IS-FeOOH/MSN) were prepared by a simple electrochemical method followed by impregnation.
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Affiliation(s)
- R. Jusoh
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - N. H. N. Kamarudin
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
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19
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Jalil AA, Triwahyono S, Karim AH, Nordin NK, Asli UA, Hassim MH, Prasetyoko D. Grape-like mesostructured silica nanoparticle-decorated single-walled carbon nanotubes: silica growth and dye adsorptivity. RSC Adv 2015. [DOI: 10.1039/c5ra12931a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Single-walled carbon nanotube (SWCNT)-mesostructured silica nanoparticle (MSN) adsorbents (S-MSNs) were prepared through a simple one-step method with various loadings of SWCNTs.
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Affiliation(s)
- A. A. Jalil
- Centre of Hydrogen Energy
- Institute of Future Energy
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. H. Karim
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - N. K. Nordin
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - U. A. Asli
- Centre of Hydrogen Energy
- Institute of Future Energy
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - M. H. Hassim
- Centre of Hydrogen Energy
- Institute of Future Energy
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - D. Prasetyoko
- Department of Chemistry
- Faculty of Mathematics and Natural Sciences
- Institut Teknologi Sepuluh Nopember
- Surabaya
- 60111 Indonesia
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Jaafar NF, Jalil AA, Triwahyono S, Shamsuddin N. New insights into self-modification of mesoporous titania nanoparticles for enhanced photoactivity: effect of microwave power density on formation of oxygen vacancies and Ti3+ defects. RSC Adv 2015. [DOI: 10.1039/c5ra15120a] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mesoporous titania nanoparticles (MTN) were successfully prepared by a microwave (MW)-assisted method under various power densities.
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Affiliation(s)
- N. F. Jaafar
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Centre of Hydrogen Energy
- Institute of Future Energy
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - N. Shamsuddin
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
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21
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Salamun N, Triwahyono S, Jalil AA, Matsuura T, Salleh NFM. Acid-vacuo heat treated low cost banana stems fiber for efficient biosorption of Hg(ii). RSC Adv 2015. [DOI: 10.1039/c4ra14320e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
HCl treatment on Banana Stem Fiber (BSF) increased the cellulose accessibility. Prior to the biosorption process, the biosorbent was activated in vacuo at 373 K. The activation improved the maximum Hg(ii) biosorption capacity from 28 to 372 mg g−1.
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Affiliation(s)
- N. Salamun
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Institute of Hydrogen Economy
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
- Department of Chemical Engineering
| | - T. Matsuura
- Industrial Membrane Research Laboratory
- Department of Chemical and Biological Engineering
- University of Ottawa
- Ottawa
- Canada
| | - N. F. M. Salleh
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
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22
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Teh LP, Triwahyono S, Jalil AA, Mamat CR, Sidik SM, Fatah NAA, Mukti RR, Shishido T. Nickel-promoted mesoporous ZSM5 for carbon monoxide methanation. RSC Adv 2015. [DOI: 10.1039/c5ra11661a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synergistic effect of Ni and the mZSM5 support led to high methanation activity of Ni/mZSM5. Two possible reaction routes emerged: (1) adsorbed CO may be reacted with H2 to form CH4 and H2O; (2) adsorbed H may be reacted with CO to form CH4 and CO2.
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Affiliation(s)
- L. P. Teh
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Institute of Hydrogen Economy
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
- Department of Chemical Engineering
| | - C. R. Mamat
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. M. Sidik
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - N. A. A. Fatah
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - R. R. Mukti
- Division of Inorganic and Physical Chemistry
- Faculty of Mathematics and Natural Sciences
- Institut Teknologi Bandung
- Bandung 40132
- Indonesia
| | - T. Shishido
- Department of Applied Chemistry
- Graduate School of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
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23
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Sapawe N, A. Jalil A, Triwahyono S. Photodecomposition of methylene blue over EGZrO2/HY in aqueous alkaline solution. Mal J Fund Appl Sci 2014. [DOI: 10.11113/mjfas.v7n2.253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The photodecomposition of methylene blue (MB) in an aqueous alkaline solution over EGZrO2/HY catalyst was investigated. The prepared catalyst was examined using X–ray diffraction (XRD) and transmission electron microscopy (TEM). The MB was completely decolorized under visible light at pH 11 after 432 h over 1 wt% EGZrO2/HY photocatalyst. Photolysis almost did not occurs even the MB was kept for the same reaction time but when the system was kept under dark condition in the absence of catalyst the MB converted into methylene violet (MV) after 30 h of reaction.
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Karim A, Jalil A, Triwahyono S, Kamarudin N, Ripin A. Influence of multi-walled carbon nanotubes on textural and adsorption characteristics of in situ synthesized mesostructured silica. J Colloid Interface Sci 2014; 421:93-102. [DOI: 10.1016/j.jcis.2014.01.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 01/24/2014] [Accepted: 01/25/2014] [Indexed: 10/25/2022]
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Khayoon MS, Abbas A, Hameed BH, Triwahyono S, Jalil AA, Harris AT, Minett AI. Selective Acetalization of Glycerol with Acetone Over Nickel Nanoparticles Supported on Multi-Walled Carbon Nanotubes. Catal Letters 2014. [DOI: 10.1007/s10562-014-1221-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Jalil A, Satar M, Triwahyono S, Setiabudi H, Kamarudin N, Jaafar N, Sapawe N, Ahamad R. Tailoring the current density to enhance photocatalytic activity of CuO/HY for decolorization of malachite green. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.05.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Triwahyono S, Setiabudi H, Jalil A, Timmiati S, Annuar N, Fatah N, Sazegar M, Teh L. Effect of iridium loading on the formation of protonic acid sites over Ir/Pt-HZSM5. Mal J Fund Appl Sci 2013. [DOI: 10.11113/mjfas.v9n1.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The Ir/Pt-HZSM5 with different iridium loading (0.3-1.0 wt%) was prepared by impregnation of iridium on Pt-HZSM5. The acidic properties of Ir/Pt-HZSM5 were studied by FTIR spectroscopy, while the activity of the catalysts was tested for n-pentane isomerization in a microcatalytic pulse reactor.The IR results of adsorbed 2,6-lutidine showed that all catalysts possessed strong Brönsted and Lewis acid sites in the outgassing at 473 K and below.When Ir/Pt-HZSM5 was heated in hydrogen, protonic acid sites were formed with concomitant decrease of Lewis acid sites. An increase in iridiumloading continuously decreased the Lewis and Brönsted acid sites and inhibited the formation of protonic acid sites induced by hydrogen. The formationof protonic acid sites induced by hydrogen was also confirmed by the formation of electron detected by ESR spectroscopy. Additionally for n-pentaneisomerization, an increase in iridium loading decreased the yield of isopentane due to the inhibition in the formation of protonic acid sites via hydrogenspillover phenomenon.
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Jalil AA, Triwahyono S, Yaakob MR, Azmi ZZA, Sapawe N, Kamarudin NHN, Setiabudi HD, Jaafar NF, Sidik SM, Adam SH, Hameed BH. Utilization of bivalve shell-treated Zea mays L. (maize) husk leaf as a low-cost biosorbent for enhanced adsorption of malachite green. Bioresour Technol 2012; 120:218-224. [PMID: 22820110 DOI: 10.1016/j.biortech.2012.06.066] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Revised: 06/18/2012] [Accepted: 06/23/2012] [Indexed: 06/01/2023]
Abstract
In this work, two low-cost wastes, bivalve shell (BS) and Zea mays L. husk leaf (ZHL), were investigated to adsorb malachite green (MG) from aqueous solutions. The ZHL was treated with calcined BS to give the BS-ZHL, and its ability to adsorb MG was compared with untreated ZHL, calcined BS and Ca(OH)(2)-treated ZHL under several different conditions: pH (2-8), adsorbent dosage (0.25-2.5 g L(-1)), contact time (10-30 min), initial MG concentration (10-200 mg L(-1)) and temperature (303-323 K). The equilibrium studies indicated that the experimental data were in agreement with the Langmuir isotherm model. The use of 2.5 g L(-1) BS-ZHL resulted in the nearly complete removal of 200 mg L(-1) of MG with a maximum adsorption capacity of 81.5 mg g(-1) after 30 min of contact time at pH 6 and 323 K. The results indicated that the BS-ZHL can be used to effectively remove MG from aqueous media.
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Affiliation(s)
- A A Jalil
- Institute of Hydrogen Economy, Faculty of Chemical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia.
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