期刊
CHEMICAL ENGINEERING JOURNAL
卷 362, 期 -, 页码 504-512出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2019.01.065
关键词
High-temperature filtration; Porous alumina ceramics; 3D reticular architecture; Removal efficiency; Pressure drop
资金
- China Postdoctoral Science Foundation [2018M631492, 2018M630151, 2018M63149, 2018M63154]
- National Natural Science Foundation of China [51572140, 51702184]
Porous ceramics with high porosity and extensive interconnected pores have great application potential in fields ranging from dye removal to high-temperature particulate matter (PM) capture. However, constructing these materials to achieve efficient filtration is extremely challenging. Herein, a novel strategy to create hierarchical-structured porous alumina ceramics (PACs) with three-dimensional (3D) reticular architecture is reported based on polyurethane (PU) foaming method. To ensure the efficient flow-through filtration, carbamate-grafted carbon black is used as the pore-forming agent and assembled into the porous PU framework. Submicron and micron-sized pores on the cell walls are observed in hierarchical-structured PACs. This unique structure enables a high PM removal efficiency (94.1%) at an ultralow pressure drop (20 Pa). Our work has demonstrated great application potentials of as-prepared PACs as an efficient high-temperature PM filter and provided new insights to develop highly effective filter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据