Abstract
The study focused on synthesis of ETL framework type novel EU-12 nanozeolite from coal fly ash (FA) for the first time by sonication assisted hydrothermal treatment (SAH). FA and the synthesized EU-12 nanozeolite were characterized by XRD, FESEM, EDS, XRF, TEM, RAMAN, DSC-TGA, BET surface area measurements, XPS and zeta potential analysis. SAH method produced EU-12 nanozeolite in lesser crystallization time compared to hydrothermal treatment method. The particle size of EU-12 were determined from TEM analysis as 5–200 nm. Crystallinity% of EU-12 was obtained by analysing XRD peaks as 76.39%. The optimized condition for EU-12 nanozeolite synthesis was found as calcination temperature of 850 °C, FA/NaOH ratio of 1:8, sonication time of 30 min, hydrothermal treatment time and temperature of 8 h and 100 °C respectively. Furthermore, the efficiency of synthesized EU-12 nanozeolite was determined for the first time in terms of adsorption efficiency towards 10 ppm Rhodamine B which was found to be 67.32% for 1 g L−1 EU-12 within 150 min. Due to high adsorption capacity and morphological properties, we propose that the synthesized nanozeolite can play a significant role as low cost adsorbent in remediation of toxic industrial dyes.
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The first author expresses appreciation to the co-authors for his contribution in above study. Also, authors wishes to thank Ministry of Education (MoE), India for a doctoral fellowship and appreciate the effort of technicians of Central Instrument Facility of the Institute for support in the analysis of samples.
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Maharana, M., Sen, S. Industrial Solid Waste Based EU-12 Nanozeolite: Synthesis and Characterisation. Waste Biomass Valor 13, 1695–1703 (2022). https://doi.org/10.1007/s12649-021-01553-4
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DOI: https://doi.org/10.1007/s12649-021-01553-4