English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Perovskite is known as potential decent ceramic metal oxides catalyst for wastewater treatment particularly in catalytic oxidation process. Perovskites can be uniquely and chemically tailored due to its simple structure which able to accommodate wide range of A and/or B-site cations. In this work, detailed investigations on the substitution effect of different B-site cations into the main structure of perovskite compounds towards catalytic oxidation of orange II solution were performed. Four (4) different types of B-site metal cations (Cu, Ni, Mo and Co) were substituted into perovskites structure via a combined EDTA-citric acid complexation method. The reactivity of resultant perovskites was found to be in sequence of Na 0.27 Ca 0.48 Cu 0.25 O 3  &gt; Na 0.25 Ca 0.48 Ni 0.27 O 3  ≍ Na 0.09 Ca 0.29 Mo 0.62 O 3  &gt; Na 0.02 Ca 0.33 Co 0.39 O 3  in the absence of stimulant or oxidant during 2 hours heterogeneous reaction. Interestingly, Na 0.09 Ca 0.29 Mo 0.62 O 3  perovskites catalyst exhibited superior catalytic activity by having complete Orange II removal (≍99%) in the presence of oxidant (0.022M H 2 O 2 ) within 15 min of reaction. The reactivity of B-site perovskites catalysts changed significantly in presence of oxidant during heterogeneous reaction that can be represented as Na 0.09 Ca 0.29 Mo 0.62 O 3 &gt; Na 0.27 Ca 0.48 Cu 0.25 O 3 &gt;Na 0.02 Ca 0.33 Co 0.39 O 3 &gt;Na 0.25 Ca 0.48 Ni 0.27 O, respectively. Such findings confer tunable and unique catalytic properties of B-site perovskites catalysts in enhancing the oxidative degradation of recalcitrant dye contaminated wastewater effluents.

B-site Substitution Effects on The Catalytic Activity of Perovskites Compounds towards Oxidative Degradation of Orange II Solutions