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Wangsa, Wangsa
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Chemical Engineering, Chemistry & Bioengineering Chemistry

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A Green and Sustainable Approach for Converting Laboratory Latex Glove Waste into Liquid Fuel via Microwave-assisted Pyrolysis Wangsa, Wangsa; Saviola, Aldino Javier; Hauli, Latifah; Trisunaryanti, Wega; Chandra, Patrik; Fitria, Riska Astin; Mahayuwati, Puspa Nindro; Wijaya, Karna
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 3 Year 2025 (October 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20429

Abstract

The extensive use of chemical laboratories for experimental and research activities has resulted in the substantial accumulation of latex glove waste, a widely used form of personal protective equipment (PPE). This study presents a novel and sustainable approach for converting laboratory latex glove waste into liquid fuel using microwave-assisted pyrolysis (MAP), which aligns with the principles of green chemistry. Under optimal conditions, including a microwave power of 800 W and an irradiation time of 30 min, the process achieved a liquid product yield of 52.58 wt%, with 41.86 wt% consisting of gasoline-range hydrocarbons (C₅–C₁₂). The primary compound identified in the liquid product was D-limonene (C₁₀H₁₆), a valuable monocyclic terpene. Compared to conventional pyrolysis conducted in a semi-batch reactor, the MAP process exhibited superior performance in terms of liquid yield, gasoline-range hydrocarbon content, total hydrocarbon composition, and calorific value. This innovative waste-to-fuel conversion method demonstrates the strong potential of MAP as an efficient and environmentally responsible strategy for waste valorization and resource recovery. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Effect of Nickel Incorporation on Nitrogen-Doped Titania/Zirconia Nanocomposites for Enhanced Visible-Light Photocatalytic Degradation of Phenol Syoufian, Akhmad; Saviola, Aldino Javier; Janah, Reza Rodhatul; Afifah, Rina; Wijaya, Karna; Kurniawan, Rian; Sudiono, Sri; Oh, Won-Chun; Wangsa, Wangsa
Bulletin of Chemical Reaction Engineering & Catalysis 2026: BCREC Volume 21 Issue 2 Year 2026 (August 2026)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20529

Abstract

The rapid expansion of industrial activities has resulted in the discharge of persistent organic pollutants, such as phenol, into aquatic environments. Nowadays, developing visible-light-responsive photocatalysts for the efficient degradation of such pollutants remains a major environmental challenge. In this study, nickel–nitrogen co-doped titania immobilized on zirconia (Ni,N–TiO₂/ZrO₂) nanocomposites with varying nickel loadings were synthesized and evaluated for phenol photodegradation under visible-light irradiation. Nickel incorporation significantly modified the optical and photocatalytic properties of the materials. The 5% Ni,N–TiO₂/ZrO₂ catalyst exhibited the lowest band gap energy (2.69 eV) compared with N–TiO₂/ZrO₂ (3.03 eV), leading to improved visible-light absorption and enhanced charge transfer. Under the experimental conditions (initial phenol concentration = 10 mg.L⁻¹, catalyst dosage = 100 mg, irradiation time = 120 min), it achieved a phenol removal efficiency of 85.36% with an apparent rate constant of 0.0229 min⁻¹, outperforming N–TiO₂/ZrO₂ (40.72%, 0.0042 min⁻¹). These results confirm that a 5 wt% nickel loading provides the most effective modification, demonstrating a strong synergistic interaction between nickel and nitrogen that enhances photocatalytic activity. The developed Ni,N–TiO₂/ZrO₂ catalyst, therefore, holds significant promise for future applications in water purification and environmental remediation. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Co-Authors Afifah, Rina Akhmad Syoufian Chandra, Patrik Fitria, Riska Astin Hauli, Latifah Janah, Reza Rodhatul Karna Wijaya Mahayuwati, Puspa Nindro Oh, Won-Chun Rian Kurniawan Saviola, Aldino Javier Sri Sudiono Wega Trisunaryanti