LDH-based nanomaterials for photocatalytic applications:A comprehensive review on the role of bi/trivalent cations, anions,morphology, defect engineering, memory effect, and heterojunction formation  

作　　者：Azmat Ali Khan Muhammad Tahir Nazish Khan 

机构地区：[1]Baluchistan University of Information Technology,Engineering and Management Sciences(BUITEMS),P.O.Box 87100,Quetta,Pakistan [2]Chemical and Petroleum Engineering Department,UAE University,P.O.Box 15551,Al Ain,United Arab Emirates [3]The University of Agriculture Swat,P.O.Box 19040,Pakistan

出　　处：《Journal of Energy Chemistry》2023年第9期242-276,共35页能源化学（英文版）

基　　金：United Arab Emirates University (UAE) for providing funding of this research undergrant # 12N097。

摘　　要：Using sunlight to drive chemical reactions via photocatalysis is paramount for a sustainable future.Among several photocatalysts,employing layered double hydrides(LDH) for photocatalytic application is most straightforward and desirable owing to their distinctive two-dimensional(2D) lamellar structure and optical attributes.This article reviews the advancements in bimetallic/trimetallic LDHs and various strategies to achieve high efficiency toward an outstanding performing photocatalyst.Firstly,the tuning of LDH components that control the electro nic and structural properties is explained.The tu ning obtained through the adoption,combination,and incorporation of different cations and anions is also explained.The progress of modification methods,such as the adoption of different morphologies,delamination,and defect engineering towards enhanced photocatalytic activities,is discussed in the mainstream.The band engineering,structural characteristics,and redox tuning are further deliberated to maximize solar energy harvesting for different photocatalytic applications.Finally,the progress obtained in forming hierarchical heterostructures through hybridization with other semiconductors or conducting materials is systematically disclosed to get maximum photocatalytic performance.Moreover,the structural changes during the in-situ synthesis of LDH and the stability of LDH-based photocatalysts are deliberated.The review also summarizes the improvements in LDH properties obtained through modification tactics and discusses the prospects for future energy and environmental applications.

关 键 词：LDH Properties Potential photocatalyst Photocatalytic application Photocatalytic properties Improvement strategies 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] TB383.1[一般工业技术—材料科学与工程]