Síntesis de ZnO vía química verde con extracto de Bauhinia variegata para aplicaciones optoelectrónicas
DOI:
https://doi.org/10.29105/qh12.02-328Palabras clave:
Química verde, Semiconductor, ZnO, impurezas, wurtzitaResumen
Se reporta la síntesis de polvos de ZnO por un método de química verde utilizando extracto de Bauhinia variegata. Se
utilizaron los compuestos del extracto como agentes de transferencia química para la síntesis. Se pudo caracterizar como
wurtzita ZnO tipo n con una morfología de conglomerados de partículas cuasi esféricas con tamaños promedio de 70 nm.
Los análisis permitieron identificar impurezas de magnesio en la red cristalina que fue aportado por el extracto, así como
posibles defectos intrínsecos ocasionados por la deformación de calda cuando se sustituye el Zn2+ por el Mg2+, La
fotoluminiscencia del material supone la posibilidad de que el material se pueda utilizar como fotocatalizador ya que mostro
una sensibilidad a longitudes de onda del espectro visible. Se encontró que el ZnO sintetizado presenta una brecha de banda
reducida de 3.11 eV que puede ser interesante para diversas aplicaciones optoelectrónicas.
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