Novel Approach to the Synthesis of Silica Gel: Sequential Mechanical Activation and Sol-Gel Methods from Fly Ash Derived from Coal. Rafryanto, A. F., Batrisya, A. L., Charlie, D. A., & Arramel, A. Journal of Research in Nanoscience and Nanotechnology, 13(1):23–32, September, 2024. ![Novel Approach to the Synthesis of Silica Gel: Sequential Mechanical Activation and Sol-Gel Methods from Fly Ash Derived from Coal [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex 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.
@article{rafryantoNovelApproachSynthesis2024,
title = {Novel {Approach} to the {Synthesis} of {Silica} {Gel}: {Sequential} {Mechanical} {Activation} and {Sol}-{Gel} {Methods} from {Fly} {Ash} {Derived} from {Coal}},
volume = {13},
issn = {2773-6180},
shorttitle = {Novel {Approach} to the {Synthesis} of {Silica} {Gel}},
url = {https://www.akademiabaru.com/submit/index.php/jrnn/article/view/5456},
doi = {10.37934/jrnn.13.1.2332},
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.},
number = {1},
urldate = {2026-06-22},
journal = {Journal of Research in Nanoscience and Nanotechnology},
author = {Rafryanto, Ande Fudja and Batrisya, Azra Liyana and Charlie, Dicky Andro and Arramel, Arramel},
month = sep,
year = {2024},
pages = {23--32},
}
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