Cai Dongqing, Wu Zhengyan, Jiang Jiang, Ding Kejian, Tong Liping, Chu Paul K, Yu Zengliang
Key Laboratory of Ion Beam Bioengineering, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China.
Nanotechnology. 2009 Jun 24;20(25):255302. doi: 10.1088/0957-4484/20/25/255302. Epub 2009 Jun 2.
An inorganic nano-network of attapulgite is formed from rigid nanorods using ion beam bombardment. The structure of the nano-networks depends on the ion beam fluence for the same ion energy. Scanning electron microscopy reveals that ion beam bombardment improves the dispersion of the attapulgite particles and the change in the shape of the rod-shaped attapulgite particles stems from the thermal stress induced by ion beam bombardment. This phenomenon is more obvious for higher ion fluences. The bent or twisted rod-shaped attapulgite particles cross-link to form a network structure, which is stable in water, and when the ion fluence is increased further, the cross-linked points are permanently sealed. The improved materials are more useful than clava attapulgite particles.
利用离子束轰击由刚性纳米棒形成凹凸棒石无机纳米网络。对于相同的离子能量，纳米网络的结构取决于离子束通量。扫描电子显微镜显示，离子束轰击改善了凹凸棒石颗粒的分散性，棒状凹凸棒石颗粒形状的变化源于离子束轰击引起的热应力。这种现象在较高离子通量下更为明显。弯曲或扭曲的棒状凹凸棒石颗粒交联形成网络结构，该结构在水中稳定，当离子通量进一步增加时，交联点被永久密封。改性后的材料比棒状凹凸棒石颗粒更有用。
