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All Journal Indonesian Journal of Science and Technology Communications in Science and Technology ASEAN Journal for Science and Engineering in Materials
Abdullah, Thamer Adnan
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Microwave Pyrolysis of Agricultural and Plastic Wastes for Production of Hybrid Biochar: Applications for Greener Environment Sridevi, Veluru; Hamzah, Husam Talib; Jweeg, Muhsin Jaber; Mohammed, M. N.; Al-Zahiwat, M. M.; Abdullah, Thamer Adnan; Abdullah, Oday I.
Indonesian Journal of Science and Technology Vol 9, No 3 (2024): IJOST: December 2024
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v9i3.75049

Abstract

The microwave-assisted pyrolysis (MAP) is a promising technology for converting waste feedstocks (AWB and PW) into valuable products, primarily biochar. The residual product generated from the AWB and PW MAP process is called hybrid biochar. The hybrid biochar made by MP is highly stable, has distinctive physical and chemical characteristics, and outperforms its conventional usage. Microwave heating is an efficient and fast energy heating method. It helps with yield production, eliminates the need for liquid convection, makes thermal control easier, restores waste products' chemical and energy value, and produces the highest quality and most cost-effective hybrid biochar. Different feedstocks and microwave pyrolysis settings affect how well hybrid biochar restores the environment. This article examines hybrid biochar's potential to boost agricultural productivity, nutrient availability, co-composting, water retention, and consumption efficiency. The report also reveals knowledge gaps and suggests further research to better understand hybrid biochar deployment. The study also detailed hybrid biochar's production, characterization and, most importantly, environmental use.
Effect of CaO nanocatalyst on bio-oil production from algae and date seeds via microwave-assisted co-pyrolysis Al Dulaimi, Mustafa; Al Oqaili, Firas; Al-anssari, Sarmad; Kadhum, Abdul Amir H.; Hamzah, Husam Talib; Sridevi, Veluru; Abdullah, Thamer Adnan; Abdullah, Oday
Communications in Science and Technology Vol 10 No 1 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.1.2025.1675

Abstract

One of the most effective ways of managing solid waste is microwave-assisted pyrolysis. This research used MW-assisted catalytic co-pyrolysis to extract essential oils from algae powder (AP) and date seed (DS). Graphite and a CaO nanocatalyst were utilized. As for the feedstock, it was a 1:1 mixture of AP and DS. The char content, oil production, and gas generation of co-pyrolysis yields varied between 18.8 wt% and 24.31 wt%, 43.08 wt%, and 55.295 wt%, and 25.905% to 32.60 wt%, respectively. The effect of the CaO nanocatalyst on product yields, feedstock conversion, and heating rates was analyzed. Product yields, average heating rates, and conversion factors were among the metrics studied to determine the synergistic effects and pyrolysis index, which represent the effect of materials composition when mixed to improve the thermal decomposition products and the efficiency of the process. More oil and char were produced due to the synergy that occurred during co-pyrolysis. The bio-oil obtained from algae powder (AP) co-pyrolysis and date seed (DS) was analyzed using GC-MS. The catalyst allowed for the synthesis of aliphatic compounds, aromatic compounds, amides, and alkenes by co-pyrolysis synergy. The significance of this work lies in its demonstration of an efficient and sustainable method for converting algae and date seeds into valuable bio-oil using catalytic microwave-assisted pyrolysis, highlighting the increased yield, product quality, and process efficiency through synergistic interactions.
Experimental Analysis of rGO-V₂O₅ Nanocomposites for Sustainable Water Remediation Completed with Bibliometric Analysis Toward Achieving Sustainable Development Goals (SDGs) Abdullah, Thamer Adnan; Khaleel, Haneen Lateef; Saeed, Ammar W.; Mohammed, M. N.; Al-Obaidi, Qusay; Hussein, Mukhtar Ali; Mhmood, Wassef Abbood; Rasheed, Rashed T.; Abdullah, Oday I.
ASEAN Journal for Science and Engineering in Materials Vol 5, No 2 (2026): AJSEM: Volume 5, Issue 2, September 2026
Publisher : Bumi Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This work integrates bibliometric analysis with laboratory experiments to develop nanotechnology-based water treatment technologies, aligning with Sustainable Development Goals (SDGs) on providing clean water and sanitation. A high-adsorption nanomaterial composed of reduced graphene oxide (rGO) doped with vanadium pentoxide (V₂O₅) was prepared using thermal doping and analyzed using XRD, FESEM, and FTIR techniques. This composite demonstrated the ability to remove 68.98% of methyl orange dye in just 30 minutes. Kinetic and adsorption studies showed conformed to a quasi-second-order kinetic model and a Langmuir single-layer adsorption model, indicating strong chemisorption and surface homogeneity. This high performance is attributed to the synergistic effect between V₂O₅ and rGO in contributing high surface area, improving electron transport, and enhancing effective sites for capturing dye molecules. This nanocomposite is a sustainable and economical option for supporting the smart architecture of urban water systems, contributing to SDGs.
Co-Authors Abdullah, Oday Abdullah, Oday I. Al Dulaimi, Mustafa Al Oqaili, Firas Al-anssari, Sarmad Al-Obaidi, Qusay Al-Zahiwat, M. M. Hamzah, Husam Talib Hussein, Mukhtar Ali Jweeg, Muhsin Jaber Kadhum, Abdul Amir H. Khaleel, Haneen Lateef Mhmood, Wassef Abbood Mohammed, M. N. Rasheed, Rashed T. Saeed, Ammar W. Sridevi, Veluru