Zhang Li, Jamal Ruxangul, Zhao Qin, Wang Minchao, Abdiryim Tursun
Key Laboratory of Oil and Gas Fine Chemicals, Educational Ministry of China, College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.14, Tianshan District, Urumqi, Xinjiang 830046 People's Republic of China ; Key Laboratory of Functional Polymers, Xinjiang University, Shengli Road No.14, Tianshan District, Urumqi, Xinjiang 830046 People's Republic of China.
Nanoscale Res Lett. 2015 Mar 25;10:148. doi: 10.1186/s11671-015-0859-6. eCollection 2015.
The nanocomposite materials of poly(3,4-ethylenedioxythiophene)/graphene oxide (PEDOT/GO), poly(3,4-ethylenedioxythiophene)/MnO2 (PEDOT/MnO2), and poly(3, 4-ethylenedioxythiophene)/graphene oxide/MnO2 (PEDOT/GO/MnO2) were successfully prepared by facile and template-free solution method. The structure and morphology of nanonanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible absorption spectra (UV-vis), field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDX), respectively. The catalytic activities of nanocomposites were investigated through the degradation processes of methylene blue (MB) solution under dark, UV light, and nature sunlight irradiation, respectively. The results displayed that nanocomposites were successfully synthesized, and PEDOT/GO had higher conjugation length and doped degree than pure PEDOT. However, the introduction of MnO2 could lead to the reduction of conjugation length and doped degree in PEDOT/MnO2 and PEDOT/GO/MnO2 nanocomposites. The field emission scanning electron microscope (FESEM) analysis also showed that both MnO2 and GO had some effect on the morphology of nanocomposites. The catalytic activities of pure PEDOT and nanocomposites were in the order of PEDOT/GO/MnO2 > PEDOT/MnO2 > PEDOT/GO > pure PEDOT. Besides, the catalytic results also showed that the highest degradation efficiency of MB after 7 h occurred in the PEDOT/GO/MnO2 composite in three irradiation.
通过简便的无模板溶液法成功制备了聚（3,4-乙撑二氧噻吩）/氧化石墨烯（PEDOT/GO）、聚（3,4-乙撑二氧噻吩）/二氧化锰（PEDOT/MnO2）和聚（3,4-乙撑二氧噻吩）/氧化石墨烯/二氧化锰（PEDOT/GO/MnO2）纳米复合材料。分别采用傅里叶变换红外光谱（FTIR）、紫外-可见吸收光谱（UV-vis）、场发射扫描电子显微镜（FESEM）、X射线衍射（XRD）和能量色散X射线光谱（EDX）对纳米复合材料的结构和形貌进行了表征。分别通过亚甲基蓝（MB）溶液在黑暗、紫外光和自然阳光照射下的降解过程研究了纳米复合材料的催化活性。结果表明，纳米复合材料成功合成，且PEDOT/GO的共轭长度和掺杂程度高于纯PEDOT。然而，MnO2的引入会导致PEDOT/MnO2和PEDOT/GO/MnO2纳米复合材料的共轭长度和掺杂程度降低。场发射扫描电子显微镜（FESEM）分析还表明，MnO2和GO对纳米复合材料的形貌均有一定影响。纯PEDOT和纳米复合材料的催化活性顺序为PEDOT/GO/MnO2＞PEDOT/MnO2＞PEDOT/GO＞纯PEDOT。此外，催化结果还表明，在三种照射条件下，PEDOT/GO/MnO2复合材料在7小时后对MB的降解效率最高。
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