摘要
采用共沉淀法将Ni-Ti引入Mg-LDHs层板中,制备Ni-Ti-Mg-LDHs纳米催化材料,通过XRD、SEM、TEM、比表面-孔径分布测定仪和紫外分光光度计等仪器进行了表征。结果表明,Ni/Ti=4∶1时,产品具有较高的结晶度和完整的晶型,Ni、Ti呈均匀分布在Mg-LDHs的层板上,粒径200 nm;产生的介孔孔径主要分布在2~6 nm,比表面积可达118.2 m2/g;在λmax=665 nm下,160 min可将亚甲基蓝降解完全,表现出良好的催化性能。
Ni-Ti was introduced in Mg-LDHs laminates,and the LDHs nano catalyst was prepared by coprecipitation method. The samples obtained were characterized by XRD,SEM,TEM,specific surface and pore size distribution analyzer and UV. The results show that： Ni / Ti = 4 ∶ 1 products have high degree of crystallinity and crystal form,Ti and Ni was uniformly distributed in the Mg-LDHs layer,and the particle size distribution was at 200 nm; mesoporous pore produced was mainly distributed in the 2 ~ 6 nm,the specific surface area was up to 118. 2 m^2/ g; in 160 min methylene blue can be completely degraded underλmax= 665 nm,and it exhibits excellent catalytic performance.
出处
《应用化工》
CAS
CSCD
北大核心
2016年第7期1400-1402,共3页
Applied Chemical Industry
基金
河北省教育厅青年基金项目(QN2015309)
关键词
钛络合物
水滑石
共沉淀法
光催化
titanium complex
hydrotalcite
coprecipitation
photocatalysis
