Eco-friendly and cost-effective synthesis of ZnO nanopowders by Tapioca-assisted sol-gel route
作者： Willians Lopes de Almeida , Fabiano Severo Rodembusch , Nilson S. Ferreira , Vânia Caldas de Sousa
DOI: 10.1016/J.CERAMINT.2020.01.095
关键词:
摘要: Abstract This study presents a low-cost method for obtaining nanometric zinc oxide (ZnO) using cassava starch (Tapioca)-assisted by sol-gel route. In this procedure, ZnO nanopowders (~20 nm and 59 nm according to XRD) were obtained after 2 h of calcination at 500oC. The played fundamental role during the synthesis allowing obtention (ZnOT) with crystallite size three times smaller than ones without (ZnO). SEM TEM images corroborate idea that Tapioca inhibited crystal growth in ZnOT when compared from same methodology. was studied FTIR results point possible interaction between cations C–O groups glucose molecule arises hydrolysis; thus, showing works as good chelating agent, well presenting very low cost.
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