Nd2O3-SiO2 nanocomposites: A simple sonochemical preparation, characterization and photocatalytic activity.
Nd2O3-SiO2 nanocomposites: A simple sonochemical preparation, characterization and photocatalytic activity.
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DOI：
10.1016/j.ultsonch.2017.11.026
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发表时间：
2018-04
影响因子：
8.4
通讯作者：
S. Zinatloo-Ajabshir;S. Mortazavi-derazkola;M. Salavati‐Niasari
中科院分区：
文献类型：
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作者：
S. Zinatloo-Ajabshir;S. Mortazavi-derazkola;M. Salavati‐Niasari
以腐胺为碱性试剂，通过简单快速的声化学反应，首次制备出了具有光催化活性的Nd 2 O3-SiO2纳米复合材料。优化了Si：Nd摩尔比、碱剂和超声功率对Nd 2 O3-SiO2纳米复合材料形貌、尺寸和光催化活性的影响。采用XRD、EDX、TEM、FT-IR、DRS和FESEM等手段对所制备的Nd 2 O3-SiO2纳米复合材料进行了表征。比较了Nd 2 O3-SiO2纳米结构和块体结构作为光催化剂在紫外光照射下降解甲基紫污染物的应用。结果表明，SiO2对Nd 2 O3光催化剂的催化分解性能有显著影响。通过在Nd 2 O3中引入SiO2，提高了紫外光照射下Nd 2 O3对甲基紫污染物的降解效率。
Nd2O3-SiO2nanocomposites with enhanced photocatalytic activity have been obtained through simple and rapid sonochemical route in presence of putrescine as a new basic agent, for the first time. The influence of the mole ratio of Si:Nd, basic agent and ultrasonic power have been optimized to obtain the best Nd2O3-SiO2nanocomposites on shape, size and photocatalytic activity. The produced Nd2O3-SiO2nanocomposites have been characterized utilizing XRD, EDX, TEM, FT-IR, DRS and FESEM. Application of the as-formed Nd2O3-SiO2nano and bulk structures as photocatalyst with photodegradation of methyl violet contaminant under ultraviolet illumination was compared. Results demonstrated that SiO2has remarkable effect on catalytic performance of Nd2O3photocatalyst for decomposition. By introducing of SiO2to Nd2O3, decomposition efficiency of Nd2O3toward methyl violet contaminant under ultraviolet illumination was increased.