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Loh ZW, Mohd Zaid MH, Matori KA, Kechik MMA, Fen YW, Mayzan MZH, Liza S, Cheong WM. Phase transformation and mechanical properties of new bioactive glass-ceramics derived from CaO-P 2O 5-Na 2O-B 2O 3-SiO 2 glass system. J Mech Behav Biomed Mater 2023; 143:105889. [PMID: 37150138 DOI: 10.1016/j.jmbbm.2023.105889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/02/2023] [Accepted: 05/03/2023] [Indexed: 05/09/2023]
Abstract
This work investigates the role of sintering temperature on bioactive glass-ceramics derived from the new composition CaO-P2O5-Na2O-B2O3-SiO2 glass system. The sintering behaviour of the samples' physical, structural, and mechanical properties is highlighted in this study. The experimental results indicated that the sintering process improved the crystallization and hardness of the final product. Results from XRD and FTIR showed the existence of carbonate apatite, pseudo-wollastonite, and wollastonite phases. From the results, the bioglass-ceramics sintered at 700 °C obtained the highest densification and optimum mechanical results. It had the value of 5.34 ± 0.21 GPa regarding microhardness and 2.99 ± 0.24 MPa m1/2 concerning fracture toughness, which falls in the range of the human enamel. Also, the sintered samples maintained their bioactivity and biodegradability after being tested in the PBS medium. The bioactivity does not affect but slows down the apatite formation rate. Overall results promoted the novel bioglass-ceramics as a candidate material for dental application.
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Affiliation(s)
- Zhi Wei Loh
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia; Nanomaterials Synthesis and Characterization Laboratory (NSCL), Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia.
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia; Nanomaterials Synthesis and Characterization Laboratory (NSCL), Institute of Nanoscience and Nanotechnology (ION2), Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Mohd Mustafa Awang Kechik
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Yap Wing Fen
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
| | - Mohd Zul Hilmi Mayzan
- Ceramic and Amorphous Group (CerAm), Faculty of Applied Sciences and Technology, Pagoh Higher Education Hub, Universiti Tun Hussein Onn Malaysia, 84600, Panchor, Johor, Malaysia
| | - Shahira Liza
- TriPrem i-Kohza, Malaysia-Japan International Institute Technology, Universiti Teknologi Malaysia, 54100, Kuala Lumpur, Malaysia
| | - Wei Mun Cheong
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
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Alhaji IA, Abbas Z, Mohd Zaid MH, Khamis AM. Effects of Particle Size on the Dielectric, Mechanical, and Thermal Properties of Recycled Borosilicate Glass-Filled PTFE Microwave Substrates. Polymers (Basel) 2021; 13:2449. [PMID: 34372052 PMCID: PMC8347532 DOI: 10.3390/polym13152449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/14/2021] [Accepted: 07/19/2021] [Indexed: 11/16/2022] Open
Abstract
Low dielectric loss and low-cost recycled borosilicate (BRS) glass-reinforced polytetrafluoroethylene (PTFE) composites were fabricated for microwave substrate applications. The composites were prepared through a dry powder processing technique by dispersing different micron sizes (25 µm, 45 µm, 63 µm, 90 µm, and 106 µm) of the recycled BRS filler in the PTFE matrix. The effect of the filler sizes on the composites' thermal, mechanical, and dielectric properties was studied. The dielectric properties of the composites were characterised in the frequency range of 1-12 GHz using an open-ended coaxial probe (OCP) connected to a vector network analyser (VNA). XRD patterns confirmed the phase formation of PTFE and recycled BRS glass. The scanning electron microscope also showed good filler dispersion at larger filler particle sizes. In addition, the composites' coefficient of thermal expansion and tensile strength decreased from 12.93 MPa and 64.86 ppm/°C to 7.12 MPa and 55.77 ppm/°C when the filler size is reduced from 106 μm to 25 μm. However, moisture absorption and density of the composites increased from 0.01% and 2.17 g/cm3 to 0.04% and 2.21 g/cm3. The decrement in filler size from 106 μm to 25 μm also increased the mean dielectric constant and loss tangent of the composites from 2.07 and 0.0010 to 2.18 and 0.0011, respectively, while it reduced the mean signal transmission speed from 2.088 × 108 m/s to 2.031 × 108 m/s. The presented results showed that PTFE/recycled BRS composite exhibited comparable characteristics with commercial high-frequency laminates.
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Affiliation(s)
- Ibrahim Abubakar Alhaji
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (I.A.A.); (M.H.M.Z.); (A.M.K.)
- Department of Physics, Faculty of Science, Federal University of Kashere, Gombe PMB 0182, Gombe State, Nigeria
| | - Zulkifly Abbas
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (I.A.A.); (M.H.M.Z.); (A.M.K.)
- Institute of Tropical Forestry and Forest Product, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (I.A.A.); (M.H.M.Z.); (A.M.K.)
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Ahmad Mamoun Khamis
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (I.A.A.); (M.H.M.Z.); (A.M.K.)
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Kamaruzzaman WMIWM, Fekeri MFM, Nasir NAM, Hamidi NASM, Baharom MZ, Adnan A, Shaifudin MS, Abdullah WRW, Wan Nik WMN, Suhailin FH, Matori KA, Kien CS, Zaid MHM, Ghazali MSM. Anticorrosive and Microbial Inhibition Performance of a Coating Loaded with Andrographis paniculata on Stainless Steel in Seawater. Molecules 2021; 26:molecules26113379. [PMID: 34205014 PMCID: PMC8199900 DOI: 10.3390/molecules26113379] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 11/16/2022] Open
Abstract
With the trend for green technology, the study focused on utilizing a forgotten herb to produce an eco-friendly coating. Andrographis paniculata or the kalmegh leaves extract (KLE) has been investigated for its abilities in retarding the corrosion process due to its excellent anti-oxidative and antimicrobial properties. Here, KLE was employed as a novel additive in coatings and formulations were made by varying its wt%: 0, 3, 6, 9, and 12. These were applied to stainless steel 316L immersed in seawater for up to 50 days. The samples were characterized and analyzed to measure effectiveness of inhibition of corrosion and microbial growth. The best concentration was revealed to be 6 wt% KLE; it exhibited the highest performance in improving the ionic resistance of the coating and reducing the growth of bacteria.
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Affiliation(s)
- Wan Mohamad Ikhmal Wan Mohamad Kamaruzzaman
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; (W.M.I.W.M.K.); (M.F.M.F.); (N.A.M.N.); (N.A.S.M.H.); (M.Z.B.); (A.A.); (M.S.S.)
- Advanced Nano Materials (ANoMa) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Maria Fazira Mohd Fekeri
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; (W.M.I.W.M.K.); (M.F.M.F.); (N.A.M.N.); (N.A.S.M.H.); (M.Z.B.); (A.A.); (M.S.S.)
- Advanced Nano Materials (ANoMa) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Nursabrina Amirah Mohd Nasir
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; (W.M.I.W.M.K.); (M.F.M.F.); (N.A.M.N.); (N.A.S.M.H.); (M.Z.B.); (A.A.); (M.S.S.)
- Advanced Nano Materials (ANoMa) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Nur Aiman Syafiq Mohd Hamidi
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; (W.M.I.W.M.K.); (M.F.M.F.); (N.A.M.N.); (N.A.S.M.H.); (M.Z.B.); (A.A.); (M.S.S.)
- Advanced Nano Materials (ANoMa) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Mohamad Zahid Baharom
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; (W.M.I.W.M.K.); (M.F.M.F.); (N.A.M.N.); (N.A.S.M.H.); (M.Z.B.); (A.A.); (M.S.S.)
| | - Azila Adnan
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; (W.M.I.W.M.K.); (M.F.M.F.); (N.A.M.N.); (N.A.S.M.H.); (M.Z.B.); (A.A.); (M.S.S.)
| | - Muhamad Syaizwadi Shaifudin
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; (W.M.I.W.M.K.); (M.F.M.F.); (N.A.M.N.); (N.A.S.M.H.); (M.Z.B.); (A.A.); (M.S.S.)
| | - Wan Rafizah Wan Abdullah
- Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (W.R.W.A.); (C.S.K.)
- Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Wan Mohd Norsani Wan Nik
- Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Fariza Hanim Suhailin
- Advanced Nano Materials (ANoMa) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
- Physics Department, Faculty of Science, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor Bahru, Malaysia
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (K.A.M.); (M.H.M.Z.)
| | - Chen Soo Kien
- Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (W.R.W.A.); (C.S.K.)
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (K.A.M.); (M.H.M.Z.)
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (K.A.M.); (M.H.M.Z.)
| | - Mohd Sabri Mohd Ghazali
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia; (W.M.I.W.M.K.); (M.F.M.F.); (N.A.M.N.); (N.A.S.M.H.); (M.Z.B.); (A.A.); (M.S.S.)
- Advanced Nano Materials (ANoMa) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
- Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (W.R.W.A.); (C.S.K.)
- Correspondence: ; Tel.: +609-6683760
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Anuar MF, Fen YW, Azizan MZ, Rahmat F, Zaid MHM, Khaidir REM, Omar NAS. Sustainable Production of Arecanut Husk Ash as Potential Silica Replacement for Synthesis of Silicate-Based Glass-Ceramics Materials. Materials (Basel) 2021; 14:ma14051141. [PMID: 33670923 PMCID: PMC7957725 DOI: 10.3390/ma14051141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 02/13/2021] [Accepted: 02/19/2021] [Indexed: 11/16/2022]
Abstract
Arecanut husk (AH) was selected as a material for silica replacement in the synthesis process of glass-ceramics zinc silicate and also the fact that it has no traditional use and often being dumped and results in environmental issues. The process of pyrolysis was carried out at temperature 700 °C and above based on thermogravimetric analysis to produce arecanut husk ash (AHA). The average purity of the silica content in AHA ranged from 29.17% to 45.43%. Furthermore, zinc oxide was introduced to AHA and zinc silicate started to form at sintering temperature 700 °C and showed increased diffraction intensity upon higher sintering temperature of 600 °C to 1000 °C based on X-ray diffraction (XRD) analysis. The grain sizes of the zinc silicate increased from 1011 nm to 3518 nm based on the morphological studies carried out by field emission scanning electron microscopy (FESEM). In addition, the optical band gap of the sample was measured to be in the range from 2.410 eV to 2.697 eV after sintering temperature. From the data, it is believed that a cleaner production of low-cost zinc silicate can be achieved by using arecanut husk and have the potential to be used as phosphors materials.
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Affiliation(s)
- Muhammad Fahmi Anuar
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (M.F.A.); (M.Z.A.); (M.H.M.Z.); (N.A.S.O.)
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (F.R.); (R.E.M.K.)
| | - Yap Wing Fen
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (M.F.A.); (M.Z.A.); (M.H.M.Z.); (N.A.S.O.)
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (F.R.); (R.E.M.K.)
- Correspondence:
| | - Muhammad Zakwan Azizan
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (M.F.A.); (M.Z.A.); (M.H.M.Z.); (N.A.S.O.)
| | - Fida’i Rahmat
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (F.R.); (R.E.M.K.)
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (M.F.A.); (M.Z.A.); (M.H.M.Z.); (N.A.S.O.)
| | - Rahayu Emilia Mohamed Khaidir
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (F.R.); (R.E.M.K.)
| | - Nur Alia Sheh Omar
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (M.F.A.); (M.Z.A.); (M.H.M.Z.); (N.A.S.O.)
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM, Serdang 43400, Selangor, Malaysia; (F.R.); (R.E.M.K.)
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Alibe IM, Matori KA, Zaid MHM, Nasir S, Alibe AM, Khiri MZA. Polymer Thermal Treatment Production of Cerium Doped Willemite Nanoparticles: An Analysis of Structure, Energy Band Gap and Luminescence Properties. Materials (Basel) 2021; 14:1118. [PMID: 33673655 PMCID: PMC7957781 DOI: 10.3390/ma14051118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/29/2021] [Accepted: 02/07/2021] [Indexed: 12/03/2022]
Abstract
The contemporary market needs for enhanced solid-state lighting devices has led to an increased demand for the production of willemite based phosphors using low-cost techniques. In this study, Ce3+ doped willemite nanoparticles were fabricated using polymer thermal treatment method. The special effects of the calcination temperatures and the dopant concentration on the structural and optical properties of the material were thoroughly studied. The XRD analysis of the samples treated at 900 °C revealed the development and or materialization of the willemite phase. The increase in the dopant concentration causes an expansion of the lattice owing to the replacement of larger Ce3+ ions for smaller Zn2+ ions. Based on the FESEM and TEM micrographs, the nanoparticles size increases with the increase in the cerium ions. The mean particles sizes were estimated to be 23.61 nm at 1 mol% to 34.02 nm at 5 mol% of the cerium dopant. The optical band gap energy of the doped samples formed at 900 °C decreased precisely by 0.21 eV (i.e., 5.21 to 5.00 eV). The PL analysis of the doped samples exhibits a strong emission at 400 nm which is ascribed to the transition of an electron from localized Ce2f state to the valence band of O2p. The energy level of the Ce3+ ions affects the willemite crystal lattice, thus causing a decrease in the intensity of the green emission at 530 nm and the blue emission at 485 nm. The wide optical band gap energy of the willemite produced is expected to pave the way for exciting innovations in solid-state lighting applications.
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Affiliation(s)
- Ibrahim Mustapha Alibe
- Material Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
- National Research Institute for Chemical Technology Zaria, Zaria P.M.B. 1052, Kaduna State, Nigeria
| | - Khamirul Amin Matori
- Material Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
- Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia;
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia;
| | - Salisu Nasir
- Department of Chemistry, Faculty of Science, Federal University Dutse, Dutse P.M.B. 7156, Jigawa State, Nigeria;
| | - Ali Mustapha Alibe
- Mechanical Engineering Departments, Federal Polytechnic Damaturu, Damaturu 620221, Yobe State, Nigeria;
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Wan Jusoh WN, Matori KA, Mohd Zaid MH, Zainuddin N, Ahmad Khiri MZ, Abdul Rahman NA, Abdul Jalil R, Kul E. Incorporation of Hydroxyapatite into Glass Ionomer Cement (GIC) Formulated Based on Alumino-Silicate-Fluoride Glass Ceramics from Waste Materials. Materials (Basel) 2021; 14:ma14040954. [PMID: 33670465 PMCID: PMC7923024 DOI: 10.3390/ma14040954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/18/2022]
Abstract
Glass ionomer cement (GIC) is a well-known restorative material applied in dentistry. The present work aims to study the effect of hydroxyapatite (HA) addition into GIC based on physical, mechanical and structural properties. The utilization of waste materials namely clam shell (CS) and soda lime silica (SLS) glass as replacements for the respective CaO and SiO2 sources in the fabrication of alumino-silicate-fluoride (ASF) glass ceramics powder. GIC was formulated based on ASF glass ceramics, polyacrylic acid (PAA) and deionized water, while 1 wt.% of HA powder was added to enhance the properties of the cement samples. The cement samples were subjected to four different ageing times before being analyzed. In this study, the addition of HA caused an increment in density and compressive strength results along with ageing time. Besides, X-ray Diffraction (XRD) revealed the formation of fluorohydroxyapatite (FHA) phase in HA-added GIC samples and it was confirmed by Fourier Transform Infrared (FTIR) analysis which detected OH‒F vibration mode. In addition, needle-like and agglomeration of spherical shapes owned by apatite crystals were observed from Field Emission Scanning Electron Microscopy (FESEM). Based on Energy Dispersive X-ray (EDX) analysis, the detection of chemical elements in the cement samples were originated from chemical compounds used in the preparation of glass ceramics powder and also the polyacid utilized in initiating the reaction of GIC.
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Affiliation(s)
- Wan Nurshamimi Wan Jusoh
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; (W.N.W.J.); (M.H.M.Z.); (N.A.A.R.); (R.A.J.)
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; (W.N.W.J.); (M.H.M.Z.); (N.A.A.R.); (R.A.J.)
- Material Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia;
- Correspondence: ; Tel.: +60-16-267-3321
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; (W.N.W.J.); (M.H.M.Z.); (N.A.A.R.); (R.A.J.)
| | - Norhazlin Zainuddin
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia;
| | - Mohammad Zulhasif Ahmad Khiri
- Material Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia;
| | - Nadia Asyikin Abdul Rahman
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; (W.N.W.J.); (M.H.M.Z.); (N.A.A.R.); (R.A.J.)
| | - Rohaniah Abdul Jalil
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; (W.N.W.J.); (M.H.M.Z.); (N.A.A.R.); (R.A.J.)
| | - Esra Kul
- Department of Prosthodontics, Faculty of Dentistry, Ataturk University, 25030 Erzurum, Turkey;
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Hisham NAN, Zaid MHM, Aziz SHA, Muhammad FD. Comparison of Foam Glass-Ceramics with Different Composition Derived from Ark Clamshell (ACS) and Soda Lime Silica (SLS) Glass Bottles Sintered at Various Temperatures. Materials (Basel) 2021; 14:ma14030570. [PMID: 33530370 PMCID: PMC7865435 DOI: 10.3390/ma14030570] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 11/16/2022]
Abstract
Soda lime silica (SLS) waste as the source of silica (SiO2) and ark clamshell (ACS) as the foaming agent has been utilized to fabricate the low-cost and lightweight foam glass-ceramics. A series of 1 and 6 wt% foam glass-ceramics were successfully prepared by the conventional solid-state sintering method at various sintering temperatures for 60 min. The bulk density of the samples has achieved minimum density (1.014 g/cm3) with maximum expansion (62.31%) at 6 wt% of the ACS content sintered at 800 °C for 60 min. The bulk density increases while the linear shrinkage and total porosity decrease with the progression of ACS contents and sintering temperature, where the results correspond with the FESEM micrograph. The result of XRD and FTIR transmittance spectra have shown that the formation of wollastonite crystal has occurred starting at 6 wt% of the ACS content sintered at 800 °C for 30 min. The highest mechanical performance (3.90 MPa) with an average total porosity (8.04%) is observed for the sample containing 1 wt% of ACS. It can be concluded that the composition of foam glass-ceramics (1 and 6 wt%) and sintering temperatures give significant results to the structural, physical, and mechanical properties of the fabricated foam glass-ceramics.
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Affiliation(s)
- Noor Aizat Noor Hisham
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia; (N.A.N.H.); (S.H.A.A.); (F.D.M.)
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia; (N.A.N.H.); (S.H.A.A.); (F.D.M.)
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Correspondence:
| | - Sidek Hj Ab Aziz
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia; (N.A.N.H.); (S.H.A.A.); (F.D.M.)
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, University Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Farah Diana Muhammad
- Department of Physics, Faculty of Science, University Putra Malaysia, Serdang 43400, Selangor, Malaysia; (N.A.N.H.); (S.H.A.A.); (F.D.M.)
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Abdul Wahab RA, Mohd Zaid MH, Aziz SHA, Amin Matori K, Fen YW, Yaakob Y. Effects of Sintering Temperature Variation on Synthesis of Glass-Ceramic Phosphor Using Rice Husk Ash as Silica Source. Materials (Basel) 2020; 13:ma13235413. [PMID: 33260692 PMCID: PMC7731033 DOI: 10.3390/ma13235413] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/21/2020] [Accepted: 11/25/2020] [Indexed: 12/25/2022]
Abstract
In this study, the authors attempted to propose the very first study on fabrication and characterization of zinc-boro-silicate (ZBS) glass-ceramics derived from the ternary zinc-boro-silicate (ZnO)0.65(B2O3)0.15(RHA)0.2 glass system through a conventional melt-quenching method by incorporating rice husk ash (RHA) as the silica (SiO2) source, followed by a sintering process. Optimization of sintering condition has densified the sintered samples while embedded beta willemite (β-Zn2SiO4) and alpha willemite (α-Zn2SiO4) were proven in X-ray diffraction (XRD) analysis. Field emission scanning electron microscopy (FESEM) has shown the distribution of willemite crystals in rhombohedral shape crystals and successfully form closely-packed grains due to intense crystallization. The photoluminescence (PL) spectra of all sintered ZBS glasses presented various emission peaks at 425, 463, 487, 531, and 643 nm corresponded to violet, blue, green, and red emission, respectively. The correlation between the densification, phase transformation, microstructure, and photoluminescence of Zn2SiO4 glass-ceramic phosphor is discussed in detail.
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Affiliation(s)
- Rabiatul Adawiyah Abdul Wahab
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (R.A.A.W.); (S.H.A.A.); (K.A.M.); (Y.W.F.); (Y.Y.)
- Faculty of Applied Sciences, Perak Branch Tapah Campus, Universiti Teknologi MARA, Tapah Road, Perak 35400, Malaysia
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (R.A.A.W.); (S.H.A.A.); (K.A.M.); (Y.W.F.); (Y.Y.)
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Correspondence:
| | - Sidek Hj. Ab Aziz
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (R.A.A.W.); (S.H.A.A.); (K.A.M.); (Y.W.F.); (Y.Y.)
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (R.A.A.W.); (S.H.A.A.); (K.A.M.); (Y.W.F.); (Y.Y.)
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Yap Wing Fen
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (R.A.A.W.); (S.H.A.A.); (K.A.M.); (Y.W.F.); (Y.Y.)
| | - Yazid Yaakob
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (R.A.A.W.); (S.H.A.A.); (K.A.M.); (Y.W.F.); (Y.Y.)
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Anuar MF, Fen YW, Zaid MHM, Omar NAS, Khaidir REM. Sintering Temperature Effect on Structural and Optical Properties of Heat Treated Coconut Husk Ash Derived SiO 2 Mixed with ZnO Nanoparticles. Materials (Basel) 2020; 13:E2555. [PMID: 32512704 PMCID: PMC7321464 DOI: 10.3390/ma13112555] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/22/2020] [Accepted: 04/24/2020] [Indexed: 12/04/2022]
Abstract
In this work, waste coconut husk ash was used to prepare a ZnO-SiO2 composite. Solid-state technique was used to fabricate the composite due to its producibility, simple procedure as well as lower production cost. At high sintering temperatures ranging from 600 °C to 1000 °C, the X-ray diffraction (XRD) peaks of the Zn2SiO4 showed high intensity, which indicated high crystallinity. Furthermore, the formation of broad bands of ZnO4, Si-O-Si, and SiO4 were detected by Fourier transform infrared (FTIR) spectroscopy and the bands became narrower with the increment of sintering temperature. Besides, the morphological image from field emission scanning electron microscopy (FESEM) showed the formation of densely packed grains and smooth surface composite with the increase of sintering temperature. Upon obtaining the absorbance spectrum from Ultraviolet-Visible (UV-Vis) spectroscopy, the optical band gap was calculated to be 4.05 eV at 1000 °C. The correlation between the structural and optical properties of ZnO-SiO2 composite was discussed in detail.
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Affiliation(s)
- Muhammad Fahmi Anuar
- Department of Physics, Faculty of Science, University Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia;
| | - Yap Wing Fen
- Department of Physics, Faculty of Science, University Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia;
- Functional Devices Laboratory, Institute of Advanced Technology, University Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; (N.A.S.O.); (R.E.M.K.)
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, University Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia;
| | - Nur Alia Sheh Omar
- Functional Devices Laboratory, Institute of Advanced Technology, University Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; (N.A.S.O.); (R.E.M.K.)
| | - Rahayu Emilia Mohamed Khaidir
- Functional Devices Laboratory, Institute of Advanced Technology, University Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia; (N.A.S.O.); (R.E.M.K.)
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Ismail NQA, Sa'at NK, Mohd Zaid MH. Enhancement of Non-Ohmic Properties of CoO DopeD ZnO Varistor Ceramics using Soda Lime Silica (SLS) Glass. SAINS MALAYS 2020. [DOI: 10.17576/jsm-2020-4904-16] [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: 11/17/2022]
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Ahmad AF, Aziz SA, Obaiys SJ, Zaid MHM, Matori KA, Samikannu K, Aliyu US. Biodegradable Poly (lactic acid)/ Poly (ethylene glycol) Reinforced Multi-Walled Carbon Nanotube Nanocomposite Fabrication, Characterization, Properties, and Applications. Polymers (Basel) 2020; 12:polym12020427. [PMID: 32059368 PMCID: PMC7077650 DOI: 10.3390/polym12020427] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 11/17/2019] [Accepted: 12/01/2019] [Indexed: 11/16/2022] Open
Abstract
This paper presents the electromagnetic interference properties of multi-walled carbon nanotubes (MWCNTs) as a novel nano-reinforcement filler in poly (lactic acid) (PLA)/poly (ethylene glycol) (PEG) polymer matrix that was prepared via melt blending mode. Plasticization of PLA was first carried out by PEG, which overcomes its brittleness problem, in order to enhance its flexibility. A waveguide adapter technique was used to measure the dielectric properties εr, and S-parameters reflection (S11) and transmission (S21) coefficients. The dielectric properties, microwave attenuation performances, and electromagnetic interference shielding effectiveness (EMISE) for all the material under test have been calculated over the full X-Band (8–12 GHz) due to its importance for military and commercial applications. The prepared samples were studied while using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transforms infrared spectroscopy (FTIR), mechanical properties measurements, as well as thermogravimetric analysis (TGA). The results showed that the dielectric properties increased with increased multi-walled carbon nanotubes (MWCNTs) filler, as well as the shielding effectiveness of the MWCNT/PLA/PEG nanocomposites increased with the increasing of MWCNTs. The highest SE total value was found to be 42.07 dB at 12 GHz for 4 wt.% filler content. It is also observed that the attenuation values of the nanocomposites increased with an increase in MWCNTs loading, as well as the power loss values for all of the samples increased with the increase in MWCNTs loading, except the amount of the transmitted wave through the nanocomposites.
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Affiliation(s)
- Ahmad Fahad Ahmad
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.H.M.Z.); (K.A.M.)
- Correspondence: (A.F.A.); (S.A.A.); Tel.: +60-173-370-907 (A.F.A.); +60-122-843-370 (S.A.A.)
| | - Sidek Ab Aziz
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.H.M.Z.); (K.A.M.)
- Correspondence: (A.F.A.); (S.A.A.); Tel.: +60-173-370-907 (A.F.A.); +60-122-843-370 (S.A.A.)
| | - Suzan Jabbar Obaiys
- School of Mathematical & Computer Sciences, Heriot-Watt University Malaysia, Putrajaya 62200, Malaysia;
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.H.M.Z.); (K.A.M.)
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia; (M.H.M.Z.); (K.A.M.)
| | - Kanagesan Samikannu
- Low Dimensional Materials Research Centre, Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Umar Sa’as Aliyu
- Department of Physics, Faculty of Science, Federal University Lafia, Nasarawa State, 0146 Lafia, Nigeria;
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Ahmad AF, Aziz SA, Abbas Z, Obaiys SJ, Matori KA, Zaid MHM, Raad HK, Aliyu US. Chemically Reduced Graphene Oxide-Reinforced Poly(Lactic Acid)/Poly(Ethylene Glycol) Nanocomposites: Preparation, Characterization, and Applications in Electromagnetic Interference Shielding. Polymers (Basel) 2019; 11:E661. [PMID: 30978935 PMCID: PMC6523337 DOI: 10.3390/polym11040661] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/05/2019] [Accepted: 03/07/2019] [Indexed: 11/16/2022] Open
Abstract
In this study, a nanocomposite of reduced graphene oxide (RGO) nanofiller-reinforcement poly(lactic acid) (PLA)/poly(ethylene glycol) (PEG) matrix was prepared via the melt blending method. The flexibility of PLA was improved by blending the polymer with a PEG plasticizer as a second polymer. To enhance the electromagnetic interference shielding properties of the nanocomposite, different RGO wt % were combined with the PLA/PEG blend. Using Fourier-transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FE-SEM) and X-ray diffraction, the structural, microstructure, and morphological properties of the polymer and the RGO/PLA/PEG nanocomposites were examined. These studies showed that the RGO addition did not considerably affect the crystallinity of the resulting nanomaterials. Thermal analysis (TGA) reveals that the addition of RGO highly improved the thermal stability of PLA/PEG nanocomposites. The dielectric properties and electromagnetic interference shielding effectiveness of the synthesized nanocomposites were calculated and showed a higher SE total value than the target value (20 dB). On the other hand, the results showed an increased power loss by increasing the frequency and conversely decreased with an increased percentage of filler.
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Affiliation(s)
- Ahmad Fahad Ahmad
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Sidek Ab Aziz
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Zulkifly Abbas
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Suzan Jabbar Obaiys
- School of Mathematical & Computer Sciences, Heriot-Watt University Malaysia, Putrajaya 62200, Malaysia.
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Haider K Raad
- Engineering Physics Program, Xavier University, Cincinnati, OH 45207, USA.
| | - Umar Sa'ad Aliyu
- Department of Physics, Federal University Lafia, Lafia 0146, Nigeria.
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Engku Ali EAG, Matori KA, Saion E, Aziz SHA, Zaid MHM, Alibe IM. Effect of sintering temperatures on structural and optical properties of ZnO-Zn2SiO4 composite prepared by using amorphous SiO2 nanoparticles. J Aust Ceram Soc 2019; 55:115-122. [DOI: 10.1007/s41779-018-0217-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 05/19/2018] [Accepted: 06/05/2018] [Indexed: 09/02/2023]
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Ahmad AF, Ab Aziz S, Abbas Z, Obaiys SJ, Khamis AM, Hussain IR, Zaid MHM. Preparation of a Chemically Reduced Graphene Oxide Reinforced Epoxy Resin Polymer as a Composite for Electromagnetic Interference Shielding and Microwave-Absorbing Applications. Polymers (Basel) 2018; 10:polym10111180. [PMID: 30961105 PMCID: PMC6290599 DOI: 10.3390/polym10111180] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 11/16/2022] Open
Abstract
The preparation of chemically reduced graphene oxide (rGO) and the optimization of epoxy resins’ properties using micro or nanofillers are now common practices. rGO nanoparticles (60 nm) based on an epoxy resin polymer were prepared at the concentrations of 0, 1, 2, 3, 4, and 5% weight percentage with fixed 6-mm thicknesses. The dielectric properties of the composites were measured by the reflection/transmission technique in connection with a vector network analyser (VNA) at a frequency range of 8–12 GHz. The microwave absorption and shielding effectiveness properties were calculated by using the reflection S11 and transmission S21 results. The microstructure and morphology of the polymer and the rGO/cured epoxy composites were studied by field emission scanning electron microscopy (FE-SEM), Fourier-transform infrared (FT-IR) spectroscopy, and the X-ray Diffraction (X-RD) technique for characterizing crystalline materials. The dielectric and other properties of the rGO/cured epoxy composites were investigated based on the filler load and frequency. It was found that the applied frequency and the filler concentrations affected the dielectric properties of the rGO/cured epoxy composites. The results showed that the introduction of rGO particles to the composites increased their dielectric properties smoothly. The study of the dependence on frequency of both the dielectric constant ε′ and the dielectric loss ε″ showed a decrease in both quantities with increasing frequency, indicating a normal behaviour of the dielectrics. Cole–Cole plots were drawn with ε′ and ε″. A theoretical simulation in terms of the Cole–Cole dispersion law indicates that the Debye relaxation processes in the rGO/cured epoxy composites are improved due to the presence of the rGO filler. Moreover, with the addition of rGO as a filler into the Epoxy matrix, it now exhibits promise as a lightweight material for microwave absorption as well as an effective electromagnetic interference (EMI) shielding material.
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Affiliation(s)
- Ahmad Fahad Ahmad
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Sidek Ab Aziz
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Zulkifly Abbas
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Suzan Jabbar Obaiys
- School of Mathematical & Computer Sciences, Heriot-Watt University Malaysia, Putrajaya 62200, Malaysia.
| | - Ahmad Mamoun Khamis
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Intesar Razaq Hussain
- Department of Chemical and Environmental Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia.
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Malaysia.
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Alibe IM, Matori KA, Sidek HAA, Yaakob Y, Rashid U, Alibe AM, Mohd Zaid MH, Ahmad Khiri MZ. Effects of Calcination Holding Time on Properties of Wide Band Gap Willemite Semiconductor Nanoparticles by the Polymer Thermal Treatment Method. Molecules 2018; 23:E873. [PMID: 29641443 PMCID: PMC6017065 DOI: 10.3390/molecules23040873] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 04/06/2018] [Accepted: 04/06/2018] [Indexed: 11/17/2022] Open
Abstract
Willemite is a wide band gap semiconductor used in modern day technology for optoelectronics application. In this study, a new simple technique with less energy consumption is proposed. Willemite nanoparticles (NPs) were produced via a water-based solution consisting of a metallic precursor, polyvinylpyrrolidone (PVP), and underwent a calcination process at 900 °C for several holding times between 1-4 h. The FT-IR and Raman spectra indicated the presence of metal oxide bands as well as the effective removal of PVP. The degree of the crystallization and formation of the NPs were determined by XRD. The mean crystallite size of the NPs was between 18.23-27.40 nm. The morphology, particle shape and size distribution were viewed with HR-TEM and FESEM analysis. The willemite NPs aggregate from the smaller to larger particles with an increase in calcination holding time from 1-4 h with the sizes ranging between 19.74-29.71 nm. The energy values obtained from the experimental band gap decreased with increasing the holding time over the range of 5.39 eV at 1 h to at 5.27 at 4 h. These values match well with band gap obtained from the Mott and Davis model for direct transition. The findings in this study are very promising and can justify the use of these novel materials as a potential candidate for green luminescent optoelectronic applications.
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Affiliation(s)
- Ibrahim Mustapha Alibe
- Material Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia.
- National Research Institute for Chemical Technology, Zaria, 810106 Kaduna State, Nigeria.
| | - Khamirul Amin Matori
- Material Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia.
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia.
| | - Hj Abdul Aziz Sidek
- Material Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia.
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia.
| | - Yazid Yaakob
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia.
| | - Umer Rashid
- Material Processing and Technology Laboratory (MPTL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia.
| | - Ali Mustapha Alibe
- Mechanical Engineering Department, Federal Polytechnic, Damaturu, 620221 Yobe State, Nigeria.
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia.
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Khiri MZA, Matori KA, Zainuddin N, Abdullah CAC, Alassan ZN, Baharuddin NF, Zaid MHM. The usability of ark clam shell (Anadara granosa) as calcium precursor to produce hydroxyapatite nanoparticle via wet chemical precipitate method in various sintering temperature. Springerplus 2016; 5:1206. [PMID: 27516944 PMCID: PMC4967056 DOI: 10.1186/s40064-016-2824-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 07/13/2016] [Indexed: 11/15/2022]
Abstract
This paper reported the uses of ark clam shell calcium precursor in order to form hydroxyapatite (HA) via the wet chemical precipitation method. The main objective of this research is to acquire better understanding regarding the effect of sintering temperature in the fabrication of HA. Throughout experiment, the ratio of Ca:P were constantly controlled, between 1.67 and 2.00. The formation of HA at these ratio was confirmed by means of energy-dispersive X-ray spectroscopy analysis. In addition, the effect of sintering temperature on the formation of HA was observed using X-ray diffraction analysis, while the structural and morphology was determined by means of field emission scanning electron microscopy. The formation of HA nanoparticle was recorded (~35–69 nm) in the form of as-synthesize HA powder. The bonding compound appeared in the formation of HA was carried out using Fourier transform infrared spectroscopy such as biomaterials that are expected to find potential applications in orthopedic and biomedical industries .
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Affiliation(s)
- Mohammad Zulhasif Ahmad Khiri
- Material Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia ; Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia
| | - Khamirul Amin Matori
- Material Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia ; Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia
| | - Norhazlin Zainuddin
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia
| | - Che Azurahanim Che Abdullah
- Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia
| | - Zarifah Nadakkavil Alassan
- Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia
| | - Nur Fadilah Baharuddin
- Material Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia ; Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia
| | - Mohd Hafiz Mohd Zaid
- Department of Physics, Faculty of Science, Universiti Putra Malaysia (UPM), 43400 Serdang, Selangor Malaysia
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17
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Samsudin NF, Matori KA, Wahab ZA, Fen YW, Liew JYC, Lim WF, Mohd Zaid MH, Omar NAS. Manganese modified structural and optical properties of zinc soda lime silica glasses. Appl Opt 2016; 55:2182-2187. [PMID: 27140551 DOI: 10.1364/ao.55.002182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A series of MnO-doped zinc soda lime silica glass systems was prepared by a conventional melt and quenching technique. In this study, the x-ray diffraction analysis was applied to confirm the amorphous nature of the glasses. Fourier transform infrared spectroscopy shows the glass network consists of MnO4, SiO4, and ZnO4 units as basic structural units. The glass samples under field emission scanning electron microscopy observation demonstrated irregularity in shape and size with glassy phase-like structure. The optical absorption studies revealed that the optical bandgap (Eopt) values decrease with an increase of MnO content. Through the results of various measurements, the doping of MnO in the glass matrix had effects on the performance of the glasses and significantly improved the properties of the glass sample as a potential host for phosphor material.
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Hashim SPHS, Sidek HAA, Halimah MK, Matori KA, Yusof WMDW, Zaid MHM. The effect of remelting on the physical properties of borotellurite glass doped with manganese. Int J Mol Sci 2013; 14:1022-30. [PMID: 23296276 PMCID: PMC3565304 DOI: 10.3390/ijms14011022] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 12/26/2012] [Accepted: 12/29/2012] [Indexed: 11/17/2022] Open
Abstract
A systematic set of borotellurite glasses doped with manganese (1–x) [(B2O3)0.3(TeO2)0.7]-xMnO, with x = 0.1, 0.2, 0.3 and 0.4 mol%, were successfully synthesized by using a conventional melt and quench-casting technique. In this study, the remelting effect of the glass samples on their microstructure was investigated through density measurement and FT-IR spectra and evaluated by XRD techniques. Initial experimental results from XRD evaluation show that there are two distinct phases of glassy and crystallite microstructure due to the existence of peaks in the sample. The different physical behaviors of the studied glasses were closely related to the concentration of manganese in each phase. FTIR spectra revealed that the addition of manganese oxide contributes the transformation of TeO4 trigonal bipyramids with bridging oxygen (BO) to TeO3 trigonal pyramids with non-bridging oxygen (NBO).
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Affiliation(s)
- Syed Putra Hashim Syed Hashim
- Glass and Ultrasonics Studies Centre (GUSC), Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
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