Biochars-based materials for heterogeneous photocatalysis

MATOS, J.:
VIII Encontro sobre Aplicações Ambientais de Processos Oxidativos Avançados II Congresso Iberoamericano de Processos Oxidativos Avançados, 3 a 6 de novembro de 2015 – Belo Horizonte – MG – Brasil.

Abstract

Biochar-based photocatalysts have been prepared from biomass derivatives and studied in photocatalytic processes concerning with environmental remediation such as phenol and methylene blue photodegradation, and in clean energy production such as hydrogen photoproduction A carefully design of the pyrolysis/activation processes permit the control both the texture and chemistry surface of carbons. Biomass precursor is a master key to control both the crystalline framework and optical and electronical properties of photoactive semiconductors such as TiO₂, ZnO and Nb₂O₅. The influence of heteroatoms-doped biochars and the influence of noble metal upon TiO₂-based photocatalysts will be also presented.