| N-TiO_2/RGO复合光催化剂的制备及其性能 |
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| 引用本文： | 耿延玲,郭伟博,匡少平.N-TiO_2/RGO复合光催化剂的制备及其性能[J].硅酸盐学报,2012,40(10):1478-1482. |
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| 作者姓名： | 耿延玲 郭伟博 匡少平 |
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| 作者单位： | 青岛科技大学化学与分子工程学院,青岛,266042 |
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| 基金项目： | 国家自然科学基金(20977055);山东省自然科学基金(2009ZRB-019WB)资助项目;青岛市应用基础研究重点计划(11-2-4-3-(16)-jch);地质过程与矿产资源国家重点实验室开放课题(GPMR201102) |
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| 摘 要： | 用改进的Hummers法制得了氧化石墨烯,以Ti（SO4）2为钛源,氨水为氮源,在400℃煅烧下制备了锐钛矿型的氮元素掺杂的TiO2（N-TiO2）。利用溶液混合法将二者混合,再经水热处理法制备了不同质量复合比例的N-TiO2/RGO光催化剂。通过X射线衍射、Fourier变换红外光谱、扫描电子显微镜等对样品的组成与形貌进行了表征,并通过降解1×10–4mol/L亚甲基蓝溶液表征了各样品的光催化效率。结果表明：掺杂氮元素一定程度上提高了TiO2的光催化效能,与石墨烯的复合更进一步改善了N-TiO2光催化效能。
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| 关 键 词： | 氮掺杂 石墨烯 复合 光催化 |
Preparation and Photocatalytic Properties of N-TiO2/RGO Composites |
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| GENG Yanling,GUO Weibo,KUANG Shaoping.Preparation and Photocatalytic Properties of N-TiO2/RGO Composites[J].Journal of The Chinese Ceramic Society,2012,40(10):1478-1482. |
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| Authors: | GENG Yanling GUO Weibo KUANG Shaoping |
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| Affiliation: | (College of Chemisty and Molecular Engineering,Qingdao University of Science and Technology,Qingdao 266042,China) |
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| Abstract: | Graphene oxide(GO) was obtained via the oxidation of graphite powder by the modified Hummers,method.N-doped anatasetype TiO2was synthesized via the calcination at 400 ℃.The GO colloids and N-TiO2particles were firstly mixed at different mass ratios by a solution mixing method,and then N-TiO2/RGO photocatalysts were obtained after the subsequent hydrothermal treatment.The as-prepared samples were characterized by X-ray diffraction,Fourier transform infrared spectroscopy and scanning electron microscopy,respectively.The photocatalytic degradation of methylene blue with N-TiO2 and N-TiO2/RGO composites was investigated.The results show that the N-TiO2and the composite photocatalysts both exhibit a better photocatalytic property rather than bare TiO2. |
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| Keywords: | N-doped reduced graphene oxide composite photocatalysis |
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