QAI, COV, Poluição e Nano TiO2

QAI, COV, Poluição e Nano TiO2

Ricardo Crepaldi

26,00 €
IVA incluido
Disponible
Editorial:
Editora Dialetica
Año de edición:
2022
Materia
Tecnología: cuestiones generales
ISBN:
9786525246482
26,00 €
IVA incluido
Disponible

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Os Compostos Orgânicos Voláteis (COV) são substâncias que apresentam potencial adverso à saúde humana, constituindo uma classe de poluentes atmosféricos. Dentre os possíveis métodos para o tratamento dos ambientes com elevada concentração de COV, está a degradação fotocatalítica em superfície de TiO2. O uso de revestimentos cerâmicos contendo superfície ativa de TiO2 foi inicialmente proposto devido à função autolimpante, necessária em áreas externas de edifícios. Associada a essa característica, a conversão fotocatalítica de NOx a nitrato e, consequentemente, ácido nítrico, foi relatada. São raras as pesquisas sobre a capacidade de degradação de COV por essas cerâmicas, especialmente quando considerado o uso em ambientes internos de edificações. Nesse contexto, este projeto propôs o estudo sobre a capacidade de degradação fotocatalítica de benzeno (COV) presente em ar confinado, em escala laboratorial, por revestimentos cerâmicos comerciais contendo TiO2 na superfície. A hipótese considerada neste estudo é de que as placas cerâmicas comerciais podem ser utilizadas em ambientes internos de edificações, com a finalidade de degradar os COV, reduzindo a poluição atmosférica e, consequentemente, melhorando a qualidade de vida das pessoas que frequentam tais ambientes. 10

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