| 狄广兰,朱志良.化学通报,2017,80(3):228-235. |
| 层状双金属氢氧化物基光催化剂的研究进展 |
| Research Progress of LDH-based Photocatalysts |
| 投稿时间：2016-09-27 修订日期：2016-09-27 |
| DOI： |
| 中文关键词: 层状双金属氢氧化物 光催化 制备方法 催化机理 进展 |
| 英文关键词:Layered double hydroxide, Photocatalysis, Preperation method, Catalytic mechanism, Progress |
| 基金项目:国家自然科学基金项目（41372241） |
|
| 摘要点击次数: 2935 |
| 全文下载次数: 0 |
| 中文摘要: |
| 层状双金属氢氧化物(LDHs)具有组分可调、层板金属离子高度分散、层间阴离子可交换、拓扑转变等特性,使其可作为理想的光催化剂、催化剂载体或前驱体。作为一种新型多功能材料,LDHs基光催化剂在环境净化、能源储备、工业催化和生物医学等多个领域广泛应用。但是,选择合适的路径进一步优化LDHs基光催化剂的性能,以实现太阳能的高效利用及催化反应过程的高转化率和高选择性仍然具有很大的挑战性。本文依据LDHs的结构特点及活性组分引入方式,将LDHs基光催化剂的制备方法总结归纳为主体层板构筑法、客体插层敏化法、剥离层层组装法、复合材料杂化法四类,详细介绍了不同制备方法对光催化性能的影响,综述其最新研究进展；并结合LDHs基光催化材料的应用,介绍其光催化行为和机理；最后,对LDHs基光催化剂的应用前景进行分析和展望。 |
| 英文摘要: |
| Layered double hydroxides (LDHs) possess various unique properties such as flexible tenability, uniform distribution of different metal cations in the metal layer, facile exchangeability of intercalated anions and topological transformation characteristics, which makes them ideal photocatalysts, catalyst supports and precursors. As one kind of novel multifunctional materials, LDH-based photocatalysts have been widely investigated in environmental remediation, energy reservation, industrial catalysis, biomedicine synthesis. However, choosing the feasible path to further optimize the performance of LDH-based photocatalysts to achieve efficient use of solar energy, high conversion efficiency and selectivity of photocatalytic reaction still remains a great challenge. In this paper, the preparation methods of LDH-based photocatalysts are classified into four types including brucite-like sheet construction, gest-intercalation sensitization, de-lamination-assembly and nanocomposite hybrid according to the structure characteristics and the mode of introducing active components. The influence of the preparation methods on photocatalytic performance of LDH-based photocatalysts has been introduced and discussed in details. We also reviewed the latest research progress and summarized the possible photocatalytic mechanism over LDH-based photocatalysts. Finally,the prospects for the development and application of LDH-based photocatalysts are also discussed. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|