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 Azmat Ali Khan;Muhammad Tahir;Nazish Khan

作者机构：Baluchistan University of Information TechnologyEngineering and Management Sciences(BUITEMS)P.O.Box 87100QuettaPakistan Chemical and Petroleum Engineering DepartmentUAE UniversityP.O.Box 15551Al AinUnited Arab Emirates The University of Agriculture SwatP.O.Box 19040Pakistan 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2023年第84卷第9期

页      面：242-276页

核心收录：

学科分类：07[理学] 081705[工学-工业催化] 070205[理学-凝聚态物理] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 0702[理学-物理学] 

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

主　　题：LDH Properties Potential photocatalyst Photocatalytic application Photocatalytic properties Improvement strategies 

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.