setembro 2018 vol. 1 num. 5 - XXII Congresso Brasileiro de Engenharia Química

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ANTIBACTERIAL EFFICIENCY OF CELLULOSE MICROPARTICLES FUNCTIONALIZED WITH SILVER NANOPARTICLES FOR WATER PURIFICATION

NOGUEIRA, A. L; EXTERKOETTER, A. C; SCHNEIDER, A. L. S; HEINZ, K. L; JOST, C. L; KOSLOWSKI, L. A. D;

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Several methods have been studied as alternatives for water desinfection.Among them, the use of metals such as silver, mainly in its nanostructured form havegained great attention. This work aimed to synthesize silver nanoparticles using theaminoethyl-aminopropyl- trimethoxysilane (APTMS) as stabilizer and coupling agenteto incorporate these nanostructures onto the surface of microcrystalline celuloseparticles. Among the different amounts of APTMS tested, the concentration of 10.8mmol.L-1resulted in a higher concentration of silver nanoparticles with smallerdispersion of sizes, and better colloidal stability along the time. In this way, suchfunctionalized natural particles could be used as an antibacterial filter filling capableto disinfected water. The developed product presented excellent antibacterialproperties, eliminating 100% of the bacteria in only 15 minutes for the tests with 5 and10 ppm of NpAg. 

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DOI: 10.5151/cobeq2018-PT.0125

Referências bibliográficas
  • [1] GUTIERREZ, AM, HOTZA, D, DUTRA, GB, NOGUEIRA, AL, FRANCO, CV, ACCHAR, W, RAMBO, CR. Mater Sci Forum. v. 798-799, p. 727-731, 2014. LV, Y, LIU, H, ZHEN, W, LIU, S, HAO, L, SANG, Y, LIU, D, WAMG, J, BOUGHTON, R.I. J. Membrane Sci. v. 331, p. 50-56, 2009. LEE, SJ.; HEO, DN.; HEO, M, NOO, MH, LEE, D, PARK, SA, MOON, J H, KWON, IKJ Ind Eng Chem. Applications of bacterial cellulose as precursor of carbon and composites with metal oxide, metal sulfide and metal nanoparticles: A review of recent advances Carbohydrate Polymers, v. 46, p. 273-278, 2017 SHARMA VK, YNGARD RA, LIN Y, Silver nanoparticles: Green synthesis and their antimicrobial activities. Advances in Colloid and Interface Science. v. 145, p. 83-96, 2009.
Como citar:

NOGUEIRA, A. L; EXTERKOETTER, A. C; SCHNEIDER, A. L. S; HEINZ, K. L; JOST, C. L; KOSLOWSKI, L. A. D; "ANTIBACTERIAL EFFICIENCY OF CELLULOSE MICROPARTICLES FUNCTIONALIZED WITH SILVER NANOPARTICLES FOR WATER PURIFICATION", p. 436-439 . In: . São Paulo: Blucher, 2018.
ISSN 2359-1757, DOI 10.5151/cobeq2018-PT.0125

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