Novel Approach to the Synthesis of Silica Gel: Sequential Mechanical Activation and Sol-Gel Methods from Fly Ash Derived from Coal

Authors

  • Ande Fudja Rafryanto Department of Chemical Engineering Imperial College London, South Kensington Campus SW72AZ London, (UK)
  • Azra Liyana Batrisya Nanotechnology Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga, Surabaya 60115, Indonesia
  • Dicky Andro Charlie Department of Physics, Institut Teknologi Kalimantan, Jl. Soekarno-Hatta, Balikpapan, Indonesia
  • Arramel Arramel Center of Excellence Applied Physics and Chemistry, Nano Center Indonesia, South Tangerang 15314, Indonesia

DOI:

https://doi.org/10.37934/jrnn.13.1.2332

Keywords:

Coal Fly Ash, Silica Gel, Sol-Gel Method, Mechanoactivation, Sustainable technology

Abstract

Exploration of unconventional resources and the reuse of industrial by-products are critical for advancing environmental sustainability. In this study, we propose a sequential mechano-activation and sol-gel method to synthesize silica gel (SG) from coal fly ash (CFA). The raw CFA used in this study contains 49.54% SiO2, with 99% of the particles measuring approximately 210 nm in size, as determined by XRF and Particle size analysis. Our findings indicate that the SG surface is rich in SiO- species, evidenced by the presence of silanol (Si-OH) and siloxane (Si-O) groups in FTIR and Raman analyses. XRD analysis confirmed the amorphous nature of the SG produced from CFA. Additionally, the SG obtained had a particle size of around 97 nm for 90% of the population. This work addresses the issue of coal waste management and provides promising material for wide application.

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Author Biographies

Ande Fudja Rafryanto , Department of Chemical Engineering Imperial College London, South Kensington Campus SW72AZ London, (UK)

ande.rafryanto@nano.or.id

Azra Liyana Batrisya , Nanotechnology Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga, Surabaya 60115, Indonesia

azralyn22@gmail.com

Dicky Andro Charlie , Department of Physics, Institut Teknologi Kalimantan, Jl. Soekarno-Hatta, Balikpapan, Indonesia

dickyandro98@gmail.com

Arramel Arramel , Center of Excellence Applied Physics and Chemistry, Nano Center Indonesia, South Tangerang 15314, Indonesia

arramel@nano.or.id

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Published

2024-09-03

How to Cite

Rafryanto , A. F., Batrisya , A. L., Charlie , D. A., & Arramel , A. (2024). Novel Approach to the Synthesis of Silica Gel: Sequential Mechanical Activation and Sol-Gel Methods from Fly Ash Derived from Coal. Journal of Research in Nanoscience and Nanotechnology, 13(1), 23–32. https://doi.org/10.37934/jrnn.13.1.2332
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