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Some Applications of Alumina Nanoparticles from Coal Fly Ash
- In the present research, coal fly ash samples were collected in Tigypt coal-fired Power Plant from Southwest Shan State in Myanmar. Alumina nanoparticles was synthesized from coal fly ash by using alkali lime sintering method. Alumina nanoparticlcs were obtained by using six steps leaching, pre-desilication, desilication, carbonation, and calcination at 1000˚ C for 3 h. Among these three metal ions, removal percent of copper was the highest. Adsorption properties of alumina nanoparticles from coal fly ash was studied. Catalytic degradation properties of prepared alumina nanoparticles from coal fly ash was applied to remove some heavy metal ions from wastewater samples collected from textile workshop in Inn Lay Lake, Southern Shan State. Copper, Zinc and Cadmium contents in waste water sample were found to be 0.12, 0.15 and 0.17 ppm before treatment. After treatment with alumina nanoparticles for 2 h, Cadmium, Zinc and Copper contents were found to be 0.0054, 0.009 and 0.060 ppm. Antimicrobial activity of alumina nanoparticles from coal fly ash were performed against six microbial strains Bacillus subtilis (N.C.T.C- 8236), Staphylococcus aureus (N.C.P.C- 6371), Pseudomonas aeruginosa (1679), Bacillus pumilus (N.C.I.B-8982), Candida albicans, and E coil (N.C.I.B-8134). Maximum inhibition zones of alumina nanoparticles from coal fly ash were measured by agar well diffusion method. The highest antimicrobial activities of coal fly ash was observed in Candida albicans strain and the maximum inhibition zone of alumina nanoparticles from coal fly ash was found to be 50 nm. Gas sensor applications of alumina nanoparticles were investigated by using ammonia gas to observe the response of gas to the sensing properties.
Myat Myat Thaw
Khine Thin Thin Aye
- The Myanmar Academy of Arts and Science