Aligned polypyrrole (PPy) micro/nanotubules were synthesized via a self-assembly method using FeCl3 as oxidant and Acid Red 1 (C.I. 18050, 5-(acetylamino)-4-hydroxy-3-(phenylazo)-2,7-naphthalenedisulfonic acid) as dopant. PPy has a typical length of 530 mm and a unique rectangular-sectioned morphology. Its general morphology could be manipulated by varying synthetic conditions including polymerization time, monomer concentration, oxidant species, and stirring. The synthesized PPy and reaction intermediates were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and solubility tests in methanol and water. Our observation and results suggest a plausible formation mechanism of rectangular-sectioned PPy micro/nanotubules. AR1eFe(II) complex formed from the complexation of Acid Red 1 and Fe2þ(reduced from Fe3þ), which precipitated in the aqueous solution, might have functioned as"template"during the polymerization of pyrrole monomers. The conductivity of PPy with different morphologies was also measured and compared.

A composite photocatalyst, Pd-TiO2-xNx-WO3, was synthesized by the template method and characterized by energy dispersive X-ray microanalysis (EDX), X-ray diffraction (XRD), UV-vis spectrometer, and scanning electron microscope (SEM). The results of EDX analysis reveals that the molecular formula of the composite photocatalyst can be expressed as Pd-TiO1.72N0.28-WO3. The UV–vis absorption spectrum indicates that the absorption edge of the catalyst red-shifts to around 600 nm. Under the irradiation with ultraviolet and visible light, the catalyst showed good performance for photocatalytic hydrogen production with a Na2S/Na2SO3 system as the sacrificial agent.

Non-woven poly (lactic-co-glycolic acid) (PLGA) nanofibers were prepared by electrospinning technology. The morphology of the electros pun fibers was observed using scanning electron Microscopy (SEM) and the fiber diameter was calculated. Primary human dermal fibroblasts (HDFs) were cultured to evaluate the biocompatibility of the electrospun PLGA nanofibers. The results of MTT testing and SEM showed that the PLGA nanofibers have the morphology of interwoven and highly porous structure and can support the attachment and proliferation of HDFs. It is can be expected to be a potential scaffold material for tissue engineering.

近年来，聚苯胺因其优良的性能而备受关注，其合成方法与合成机理一直是聚苯胺研究的重要内容之一.本文详细阐述了聚苯胺的化学和电化学合成方法，并对两类合成方法的反应机理进行了综述。

以四氯化钛（TiCl4） 为原料，用溶胶凝胶法制备了纳米氮杂二氧化钛光催化剂（TiO2Ox Nx），并利用化学还原法在纳米TiO2Ox Nx的表面负载了铂单质（Pt/TiO2Ox-Nx），X射线衍射（XRD） 结果表明，Pt/ TiO2Ox Nx光催化剂为锐钛矿型结构，由紫外-可见漫反射光谱显示催化剂的能隙与纯TiO2不同，而与TiO2Ox-Nx 相一致。产氢实验结果表明，Pt的负载可以明显提高光催化剂的产氢活性，并且催化剂的产氢活性与Pt的质量分数之间呈现双峰现象，当Pt的质量分数为0.05%和0.35%时，产氢活性分别达到极大值。研究结果表明，当Pt的质量分数为0.05%时，表面Pt粒子的大小约为10nm且分布均匀，显示该尺度的Pt粒子对于催化剂的产氢活性有较大的促进作用。