Strategies to improve metal organic frameworks photocatalyst's performance for degradation of organic pollutants

Researches on metal-organic framework (MOF) materials have gathered increasing interest in the field of photocatalysis due to their large surface area, well-ordered porous structure, and tunable organic bridging linker/metal clusters with a tailorable capacity to absorb light. The development of inexpensive, stable, efficient, and band-gap tunable MOF-based photocatalysts is still a great challenge. The selection of central metal ions and organic ligands is of great importance for the fabrication of MOFs with excellent photocatalytic properties. This review aimed to summarize the strategies of improving photocatalytic activity under light illumination, including optimization, modification, doping and imperfection, mainly in structure, light absorption, band gap and stability. In addition, the applications of various modified MOFs are also introduced. Finally, the future developments of MOFs are discussed. (C) 2018 Elsevier B.V. All rights reserved.