凹凸棒土复合材料在催化领域的应用现状

凹凸棒土作为一种非金属矿物材料,储量丰富,结构特殊,具有良好的吸附性能和催化性能,常用作催化剂或催化剂载体。为了更好地了解并充分利用凹凸棒土资源,概括介绍了凹凸棒土的基本性质及包括酸改性、碱改性在内的不同改性方法对凹凸棒土自身性质的影响,主要叙述了凹凸棒土复合材料在光催化、气相催化、电催化及其他催化领域的应用现状。通过对比发现,凹凸棒土复合材料在各催化领域尤其是光催化领域应用价值较高。最后,对该复合材料在光催化治理废水污染物中所具有的优势和发展前景进行了总结和展望。

Application status of attapulgite-based composite materials in field of catalysis

As a non-metallic mineral material,attapulgite has abundant reserves and special structure.Due to its good adsorp-tion performance and catalytic performance,it is commonly used as catalyst or catalyst carrier.In order to better understand and make full use of attapulgite resources,the basic properties of attapulgite and the influence of different modification meth-ods including acid modification and alkali modification on the properties of attapulgite were briefly introduced.And the cur-rent application of attapulgite composite materials in the field of photocatalysis,gas phase catalysis,electrocatalysis,and other catalysis fields were mainly described.Through comparison,the attapulgite composite material was found to exhibit higher ap-plication value in catalysis fields,especially the photocatalysis field.Finally,the advantage and the further application of the attapulgite composite materials in the treatment of wastewater by photocatalysis were summarized and prospected.