| CNT/β-AgVO3混杂材料的制备及其光催化分解水析氧性能 |
| Preparation and Photocatalytic Performance of CNT/β-AgVO3 Hybrid Materials for Oxygen Evolution from Water |
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| 摘要: 采用水热法合成出单斜结构的β-AgVO3纳米棒和CNT/β-AgVO3光催化剂,在可见光模拟系统中以碘酸钾为电子捕获剂,检测氧气生成速率表征催化剂的光催化性能,并借助X射线衍射(XRD)分析、扫描电镜(SEM)、透射电镜(TEM)、紫外-可见光漫反射吸收光谱(UV-Vis)等对催化剂粉体进行了表征.实验结果表明,CNT附着在β-AgVO3颗粒表面有利于光生电子的转移和光解水析氧反应.CNT/β-AgVO3催化剂较之纯β-AgVO3催化剂活性显著提高.当CNT附着量为1.5%时,析氧速率可稳定在250μmol·g-1·h-1. |
| 关键词: 光催化剂 β-AgVO3 分解水 氧气 |
| 基金项目: 国家自然科学基金(No.)资助项目 |
| Abstract: β-AgVO3 nanowires with monoclinic structure were synthesized by hydrothermal method. C nanotube (CNT) as an effective cocatalyst was loaded onto β-AgVO3 photocatalyst. The photocatalytic activity of CNT/β-AgVO3 was performed by its O2 evolution performance under UV-Vis irradiation while KIO3 was used as electron acceptor, and the photocatalyst was characterized by XRD, SEM, TEM and UV-Vis absorption spectrum. The results showed that the photocatalytic activity of CNT/β-AgVO3 was superior to that of pure β-AgVO3, and loaded CNT can improve the interfacial electron transfer and the O2 evolution. When the amount of loaded CNT was 1%(wt), the stable average oxygen evolution rate was about 250 μmol·g-1·h-1. |
| Keywords: photocatalysts β-AgVO3 water splitting oxygen |
| 投稿时间：2014-06-24 修订日期：2014-10-25 |
| 摘要点击次数: 1965 |
| 全文下载次数: 2088 |
| 赵学国,黄祖志.CNT/β-AgVO3混杂材料的制备及其光催化分解水析氧性能[J].无机化学学报,2015,31(1):69-73. |
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