Tongji University

Shanghai Tongji Clearon Enviornmental Protection Equipment

Hongyang Min

Xu Chu Jiang

Dandan Li

Jianwei Fan

Minjun Chen

Wangyuan Chen

Yu Sun

Xianqiang Ran

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

Mesoporous ternary composite materials and a corresponding preparation method are described herein. The method includes the following steps: (1) adding hydrochloric acid and acetic acid into an ethanol solution to prepare a dissolving system; (2) adding a surfactant into the dissolving system and fully stirring for dissolution; (3) adding copper nitrate, manganese nitrate solution and tetrabutyl titanate into the mixed liquid obtained from step (2) and evenly stirring; (4) transferring the mixture obtained from step (3) into petri dishes and obtaining transparent films after drying; and (5) calcinating the transparent films to obtain mesoporous ternary composite materials. The materials prepared are ordered mesoporous materials with high specific surface areas and high dispersion degree of every component.

Mesoporous ternary composite material and corresponding method of preparation

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Shanghai, China

Hongyang Min