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All Journal Indonesian Journal of Science and Technology Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Empiricism Journal ASEAN Journal of Science and Engineering Education (AJSEE) International Journal of Essential Competencies in Education
Muhammad Roil Bilad
Universiti Brunei Darussalam
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : Indonesian Journal of Science and Technology

 1 
Conversion of Green Silica from Corn Leaf into Zeolites Na A-X Teguh Kurniawan; Dhimas Satria; Juniafit Bima Saputra; Muhammad Roil Bilad; Nik Abdul Hadi Md Nordin; Hairus Abdullah
Indonesian Journal of Science and Technology Vol 7, No 2 (2022): IJOST: VOLUME 7, ISSUE 2, September 2022
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v7i2.45831

Abstract

Combustion of corn leaf as a model of biomass from agricultural waste is a simple way to obtain the energy. It produces a low-value by-product of ash and is rich in silica that can become a precursor for zeolite production. In this study, acid-treated corn leaves combustion was performed to produce high purity silica (SiO2). The diffraction pattern suggested that the extracted silica was amorphous without the impurities phase. Additionally, the nitrogen isotherm indicated that the material was highly mesoporous silica with a total surface area of 200 m2/g. The hydrothermal method was then applied with a composition molar ratio of 1.25SiO2:1Al2O3:5Na2O:250H2O to synthesize zeolites from the silica. The temperature and time effect on the hydrothermal zeolite’s synthesis was investigated. The diffraction pattern shows that high crystalline zeolite Na A-X was produced at temperatures of 100°C and 8 h hydrothermal time. According to nitrogen physisorption analysis, the zeolite Na A-X consisted of micropores with a total surface area of 270 m2/g. The morphology of zeolite Na A-X was cube for the Na-A and octahedral for the Na-X. The hydrothermal temperature and time highly affected the zeolite formed. This research suggested that the ash waste could be valorized through conversion into a high economic value zeolites.
Green Route Synthesis of Amorphous Silica from Oil Palm Decanter Cake: From Literature Review to Experiments Nursyahirah Abdul Rahim; Noorfidza Yub Harun; Anwar Ameen Hezam Saeed; Muhammad Roil Bilad
Indonesian Journal of Science and Technology Vol 8, No 2 (2023): (ONLINE FIRST) IJOST: September 2023
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v8i2.53724

Abstract

Numerous agricultural wastes are well-defined as low-cost sources and rich in silica content. The residue of oil palm wastes combustion seems a promising silica source and can be recovered through a straightforward method. In this study, the combustion followed by an alkaline extraction method was employed to extract high purity of silica. The oven-dried oil palm decanter cake (DOPDC) was heated at combustion temperatures of 600, 700, 800, and 900°C to produce OPDC ashes (OPDCA), followed by an alkaline extraction using 5M of NaOH solution. Thermogravimetric analysis (TGA) was used to observe the thermal behavior of DOPDC where the suitable combustion temperatures to produce silica ranged between 600 and 1000 ℃. X-Ray Fluorescence (XRF) analysis showed that silica contents were 31-36% after combustion, increasing to 76.95% after the chemical treatment. Moreover, the spherical shape of the silica was observed through electron microscope analysis. It was represented by the aggregation of silica after going through chemical treatment. The X-Ray Diffraction analysis also proved that the amorphous silica was produced, characterized by the hump-shaped spectrum. The infrared analysis confirmed that the silica had been successfully extracted from OPDCA by the presence of silica functional groups shown in the spectrum.
Progress in Emerging Contaminants Removal by Adsorption/Membrane Filtration-Based Technologies: A Review Rosmaya Dewi; Norazanita Shamsuddin; Muhammad S. Abu Bakar; Jose H. Santos; Muhammad Roil Bilad; Lee Hoon Lim
Indonesian Journal of Science and Technology Vol 6, No 3 (2021): IJOST: VOLUME 6, ISSUE 3, December 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v6i3.39271

Abstract

This paper discussed the removal and the remediation of emerging contaminants (ECs) in water using adsorption and membrane filtration as a single and hybrid system. The classifications, sources, effects, detection techniques, and available technologies for ECs removal were discussed. Next, an overview of both adsorption and membrane filtration processes in terms of materials, separation mechanisms, factors affecting their performances, and their applications for ECs removals was provided. It was followed by a comprehensive review of the combination of the membrane and the adsorption processes with other physical, chemical, or biological treatments. Finally, progress in research on a hybrid system between membrane filtration and adsorption was discussed. The combination included adsorption as the pre-treatment, integrated adsorption/membrane filtration system, or adsorption as the post-treatment. Generally, the hybrid systems showed improved performance than a single system. Nonetheless, further studies are recommended for applications of those systems on a wide range of ECs removals and the scale-up issue.
Step-by-Step Fabrication of PVDF-TiO2 Hollow Fiber Membrane and Its Application Desalination of Wetland Saline Water via Pervaporation M. Mahmud; Muthia Elma; Aulia Rahma; Nurul Huda; Riani Ayu Lestari; Awali S. K. Harivram; Erdina L. A. Rampun; Mohd H. D. Othman; Muhammad Roil Bilad
Indonesian Journal of Science and Technology Vol 8, No 3 (2023): (ONLINE FIRST) IJOST: December 2023
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v8i3.63433

Abstract

Wetland water is opted as the source of domestic water supply when the availability of clean fresh water is scarce. Wetland water requires proper treatment due to the high concentration of organic matter and high salinity, particularly in the dry season. This research aims to synthesize, characterize, and investigate the performance of polyvinylidene fluoride (PVDF)-TiO2 hollow fiber membrane for wetland saline water desalination via pervaporation. The PVDF-TiO2 hollow fiber membranes were fabricated through the dry wet spinning method under various air gaps (10, 15, and 20 cm). Then, the resulting membranes were tested in a pervaporation process at temperatures of 25, 40, and 60°C. Results show that the incorporation of TiO2 into the PVDF matrix imparted hydrophilicity properties into the resultant membranes. The presence of TiO2 was confirmed by the TiO2 stretching vibration at 1640 cm-1 (FTIR) and the TiO2 phase at diffraction peaks at 25.5 and 37°. The membranes exhibited the highest water flux (7.48 kg/m2.h) and salt rejection ( 99.5%) at 40°C. Overall, the developed PVDF-TiO2 hollow fiber membranes showed encouraging results and demonstrated their effectiveness for the desalination of wetland saline water.
Co-Authors Anisa Syafitri Anwar Ameen Hezam Saeed Asep Bayu Dani Nandiyanto Aulia Rahma Awali S. K. Harivram Dewi Yuliatina Dhimas Satria Elza Varih Azizah Erdina L. A. Rampun Hairus Abdullah Hendrawani Hendrawani Jose H. Santos Juniafit Bima Saputra Kaspul Anwar Lee Hoon Lim M. Mahmud M. Muhali Mohd H. D. Othman Muhammad Asy'ari Muhammad S. Abu Bakar Muthia Elma Nik Abdul Hadi Md Nordin Nik Abdul Hadi Md Nordin Noorfidza Yub Harun Norazanita Shamsuddin Nur Azizah Nursyahirah Abdul Rahim Nurul Huda Riani Ayu Lestari Rosmaya Dewi Shafiq Mohd Hizam Siti Asmiati Susruhiyatun Hayati Tedi Kurniawan Teguh Kurniawan Yusran Khery