“…Wang et al, 2016) . Studies point to this material being used as a filtration aid for the removal of heavy metals and organic pollutants (Tanniratt et al, 2016;Xia et al, 2017) as a source of silica in the synthesis of zeolites (Garcia et al, 2016;Nascimento et al, 2014) in the preparation of photocatalysts (B. Li et al, 2015), besides of support from oxygen carriers in Chemical Looping Combustion (Romário, 2021) and in the production of ceramic bricks (Costa et al, 2021). Recently, diatomite has been highlighted as catalytic support due to some properties such as thermal and mechanical resistance (Liu et al, 2018).…”