Catalytic ozonation of 2-ethoxy ethyl acetate using mesoporous nickel oxalates

•Mesoporous nickel oxalate preparation.•A metal-oxalate being used as a catalyst for the first time.•Efficient and cheap environmental remediation process.•Highly stable reusable catalysts.

In this communication, synthesis of mesoporous nickel oxalate and its catalytic activity in ozonation of 2-ethoxy ethyl acetate (2-EEA) was reported. The mesoporous nickel oxalate was synthesized by simple method without using any template. The XRD and HR-TEM analyses indicated the formation of plate like nickel oxalate. The nitrogen adsorption–desorption analysis showed the mesopores over the catalyst surface with narrow pore size of 4.5 nm. About 0.125 g/L of dosage was found to be optimum for efficient removal of 2-EEA. The catalytic reusability studies demonstrated that nickel oxalate kept its catalytic activity in four consecutive cycles.

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