Tongji University

Shanghai Tongji Clearon Enviornmental Protection Equipment

Xianqiang Ran

Jianwei Fan

Yu Sun

Xu Chu Jiang

Yue H Wang

Dandan Li

Wei Teng

Weixian Zhang

Hongyang Min

Minjun Chen

Wangyuan Chen

Bei Yu

Xiaoqian Chen

A copper-palladium-loaded mesoporous silicon carbide-based catalyst, a preparation method, and an application thereof are provided. First, a mesoporous silicon carbide material is prepared by using mesoporous silica as a hard template; subsequently, the mesoporous silicon carbide material is mixed with a copper-palladium precursor mixed solution, and dried after the solvent is completely volatilized. The dried powder is successively subjected to calcination with Nand reduction with Hto finally obtain the copper-palladium-loaded mesoporous silicon carbide-based catalyst. The catalyst is made into an electrode, and the nitrate in water body is catalytically reduced by electrochemical method. The preparation method of the catalyst of the present invention is simple. The catalyst can realize high-efficiency catalytic denitrification at a low metal loading amount, with high selectivity of nitrogen. Moreover, the catalyst has the advantages of high activity, good stability, wide application range and low cost.

Copper-palladium-loaded mesoporous silicon carbide-based catalyst, preparation method and application thereof

The present invention relates to a field of control of nitrogen oxide pollution, and involves a high-efficient catalyst for denitration at low temperature and preparation method thereof, which comprises the steps: (1) preparing aqueous solution of cerium nitrate; (2) soaking mesoporous silica materials SBA-15 with aqueous solution from step (1), after stirring, filtrating, washing and drying; (3) calcining materials from step (2) to obtain evenly dispersed CeO-SBA-15 materials; (4) preparing ethanol solution of manganese nitrate; (5) soaking CeO-SBA-15 materials from step (3) with ethanol solution of manganese nitrate from step (4) and volatilizing ethanol, washing and drying; (6) calcining materials from step (5) to obtain evenly distributed MnO/CeO-SBA-15 catalyst for denitration; The preparation method has simple process with lower cost, and the obtained MnO/CeO-SBA-15 catalyst has uniform and ordered pores, large specific area, narrow pore size distribution, well dispersity of catalytic components, high catalytic activity, better effect of denitration at low temperature range and wider temperature range available for denitration.

Low-temperature and highly efficient denitration catalyst and corresponding method of preparation

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Shanghai, China

Xianqiang Ran