Materials and Minerals Division, National Institute for Interdisciplinary Science and Technology (CSIR), Trivandrum, Kerala 695019, India.
J Hazard Mater. 2010 Mar 15;175(1-3):889-95. doi: 10.1016/j.jhazmat.2009.10.093. Epub 2009 Oct 31.
The transformation of ZnO morphologies in an in situ thermohydrolysis technique using hexamethylene tetramine is studied with and without surfactants. The photocatalytic and photoluminescence properties of these morphologically tuned ZnO morphologies are studied and the results presented. In the absence of any surfactants, the HMTA assisted in situ hydrolysis resulted in microtube and multipod morphologies. The addition of nonionic [Span-80] and cationic [CTAB] surfactants transforms the morphologies to microspheres, microdiscs and nanorods. The photoluminescence analysis shows a red luminescence in nanorods and green-indigo and blue-green emissions in microtubes and other morphologies. Photocatalytic reaction efficiency in UV light follows the order microtubes>nanorods>microdiscs>microspheres>multipods.
采用六亚甲基四胺的原位热水解技术研究了 ZnO 形态的转变，有无表面活性剂。研究了这些形态调制的 ZnO 形态的光催化和光致发光性能，并给出了结果。在没有任何表面活性剂的情况下，HMTA 辅助的原位水解导致了微管和多足形态的形成。添加非离子[Span-80]和阳离子[CTAB]表面活性剂将形态转化为微球、微盘和纳米棒。光致发光分析表明，纳米棒中存在红色发光，微管和其他形态中存在绿靛和蓝绿色发光。在紫外光下，光催化反应效率遵循微管>纳米棒>微盘>微球>多足的顺序。
