Room temperature synthesis of germanium dioxide nanorods and their in vitro photocatalytic application
2018; Elsevier BV; Volume: 178; Linguagem: Inglês
10.1016/j.ijleo.2018.09.182
ISSN1618-1336
AutoresWon Jeon Kim, Veronika Soshnikova, Josua Markus, Keun Hyun Oh, Gokulanathan Anandapadmanaban, Ramya Mathiyalagan, Zuly Elizabeth Jiménez Pérez, Yeon Ju Kim, Deok Chun Yang,
Tópico(s)Silicon Nanostructures and Photoluminescence
ResumoRoom temperature synthesis of germanium oxide nanorods (GeO2Nrs) by co-precipitation method using NaOH as hydrolysis agents and GEBIO solution as precursor and stabilizing agents is highlighted in this study. GEBIO is a mineral germanium dioxide solution developed for agricultural products to allow the accumulation of natural plant-based germanium in crops. This germanium fertilizer, which contains germanium dioxide (1000 μg/mL), liquid enzyme, boron (0.11%, v/v) and molybdenum (0.005%, v/v), is proposed to contribute to the nucleation and elongation of rod-shaped GeO2 nanoparticles during the reaction phase. FE-TEM images of GeO2 crystals demonstrated the rod-shaped structure with a diameter in the range of 60–220 nm and lengths of the nanorods are in the range of 0.2–2.20 μm. FTIR spectra of GeO2Nrs suggested that the molecules found in GEBIO were likely to grant stabilization. Furthermore, more than 50% degradation of methylene blue dye could be achieved within 60 min of exposure to GeO2Nrs and excess GEBIO solution under UV light. In conclusion, the energy efficient synthesis of GeO2Nrs may be useful as novel synthesis of photocatalytic agents for the remediation of wastewater.
Referência(s)