[1]李海金,韩秋彤,贾虎,等.LDHs材料的制备及光催化应用研究进展[J].中国材料进展,2019,(02):091-97.[doi:10.7502/j.issn.1674-3962.2019.02.02]
　LI Haijin,HAN Qiutong,JIA Hu,et al.Research Progress on Synthesis of Layered Double Hydroxides(LDHs) and Their Applications in Photocatalysis[J].MATERIALS CHINA,2019,(02):091-97.[doi:10.7502/j.issn.1674-3962.2019.02.02]
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LDHs材料的制备及光催化应用研究进展(/HTML)
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2019年第02期
页码:
091-97
栏目:
出版日期:
2019-02-28

文章信息/Info

Title:
Research Progress on Synthesis of Layered Double Hydroxides(LDHs) and Their Applications in Photocatalysis
作者:
李海金1; 韩秋彤2; 贾虎1; 周勇2; 邹志刚2
1. 安徽工业大学数理科学与工程学院，安徽 马鞍山 243002
2. 南京大学物理学院 环境材料与再生能源研究中心 江苏省纳米技术重点实验室，江苏 南京 210093
Author(s):
LI Haijin1; HAN Qiutong2; JIA Hu1; ZHOU Yong2; ZOU Zhigang2
1. School of Mathematics and Physics, Anhui University of Technology, Maanshan 243002, China
2. EcoMaterials and Renewable Energy Research Center, Jiangsu Key Laboratory for Nano Technology,School of Physics, Nanjing University, Nanjing 210093, China
关键词:
层状双金属氢氧化物; 合成方法; 光催化; 光电催化; 展望
Keywords:
layered double hydroxides;  synthesis methods;  photocatalysis;  photoelectrocatalysis;  outlook
DOI:
10.7502/j.issn.1674-3962.2019.02.02
文献标志码:
A
摘要:
层状双金属氢氧化物(layered double hydroxides, LDHs)具有层板化学组分可调、层间阴离子易交换、插层分子种类多、比表面积大等优点，可作为理想的光催化剂，具有重要的应用前景。LDHs光催化剂的制备方法主要有共沉淀法、水热法、离子交换法等，在此基础上，探讨了LDHs光催化材料在光催化产氢或产氧、光催化还原CO2、光降解有机污染物以及光电催化等领域的应用。尽管LDHs材料的光催化应用研究取得了良好的进展，但是LDHs光催化材料的催化活性仍然较低，实现太阳能的高效利用及光催化反应过程的高转化率仍然具有很大的挑战性。针对这一困境，可以采取以下措施：① 开发新的纳米材料合成技术，实现LDHs材料的成分、微结构的可控合成；② 发展原位表征技术，直观研究光催化反应的微观动态过程和相关规律；③ 构建新颖的LDHs基光催化材料，使其光子吸收与利用率、光生载流子分离效率与表面催化反应效率协同提高，获得较高光催化效率。
Abstract:
Layered double hydroxides (LDHs) photocatalysts have emerged as one of the most ideal photocatalysts, owing to their flexibility in composition of hydroxide layer, facile exchange ability of interlayer anions and a range of intercalation molecule, and high specific surface areas. LDHs photocatalysts were prepared by coprecipitation, hydrothermal method, ion exchange route, and other techniques. As one of the promising photocatalysts, the research progress and application of LDHs photocatalysts in photocatalytic and/or photoelectrocatalytic O2 generation and H2 evolution, photoreduction of CO2, and photodegradation of organic pollutants are reviewed. Despite the many recent advances in photocatalytic performance of LDHs, the low photocatalytic efficiency of LDHs is always a key factor and great challenge to restrict the practical application of this technology. For high conversion efficiency of photocatalytic reaction, some strategies may be adoped to enhance the photocatalytic efficiencies of LDHs: ① development of new synthesis methods to controllably produce LDHs with an optimum compositions and nanostructures; ② exploration of advanced insitu tehniques to directly characterize microdynamic reaction process and correlations between photocatalytic properties and influence factor for LDHs photocatalysts under reaction condition; ③ design of novel LDHsbased photocatalysts to achieve high photocatalytic efficiency by the aid of synergistic enhancement in photon absorption and utilization, the separation of photogenerated carriers and surface photocatalytic reaction efficiency.

备注/Memo

备注/Memo:
基金项目：国家自然科学基金资助项目（21673001，21773114，21473091）;安徽省自然科学基金资助项目（1608085ME102）第一作者： 李海金，男，1980年生，教授，硕士生导师通讯作者： 周勇，男，1972年生，教授，博士生导师，Email: zhouyong1999@nju.edu.cn
更新日期/Last Update: 2019-01-30