Cui Jing-Wang, Li Yue-Hua, Zhao Ling-Yan, Cui Guang-Hua
College of Chemical Engineering, Hebei Key Laboratory for Environment Photocatalytic and Electrocatalytic Material, North China University of Science and Technology, Tangshan, Hebei 063009, PR China.
College of Chemical Engineering, Hebei Key Laboratory for Environment Photocatalytic and Electrocatalytic Material, North China University of Science and Technology, Tangshan, Hebei 063009, PR China.
Ultrason Sonochem. 2017 Nov;39:837-844. doi: 10.1016/j.ultsonch.2017.06.004. Epub 2017 Jun 9.
Nanostructures of a new Co(II) coordination polymer (CP), [Co(Hbibp)(nbta)] (1), (bibp=4,4'-bis(1-imidazolyl)biphenyl, Hnbta=5-nitro-1,2,3-benzenetricarboxylic acid) was synthesized by a sonochemical method. The nano-sized CP 1 was characterized by elemental analysis, IR spectroscopy, X-ray powder diffraction and scanning electron microscopy (SEM). Structural analysis show that CP 1 exhibits a 1D chain structure with a 3-connected SP 1-periodic net (4,4)(0,2) topology, which can be further extended into a 2D supramolecular layer by the NH⋯O hydrogen bond interactions. The thermal stability for CP 1 as bulk and nanoparticles were investigated. The photoluminescence properties and electrochemical behavior for nano-sized CP 1 have also been explored. Moreover, nano-sized CP 1 shows high photocatalytic activities for the degradation of MB under UV irradiation and the photodegradation process is mainly caused by OH radicals. Effects of the sonication time and ultrasonic power on the morphology and size of nanoparticles were studied.
通过声化学方法合成了一种新型钴（II）配位聚合物（CP）[Co（Hbibp）（nbta）]（1）（bibp = 4,4'-双（1-咪唑基）联苯，Hnbta = 5-硝基-1,2,3-苯三甲酸）的纳米结构。通过元素分析、红外光谱、X射线粉末衍射和扫描电子显微镜（SEM）对纳米尺寸的CP 1进行了表征。结构分析表明，CP 1呈现出具有3连接SP 1周期网络（4,4）（0,2）拓扑结构的一维链状结构，通过NH⋯O氢键相互作用可进一步扩展为二维超分子层。研究了CP 1作为块状和纳米颗粒的热稳定性。还探索了纳米尺寸CP 1的光致发光性质和电化学行为。此外，纳米尺寸的CP 1在紫外光照射下对亚甲基蓝的降解表现出高光催化活性，光降解过程主要由羟基自由基引起。研究了超声时间和超声功率对纳米颗粒形态和尺寸的影响。
