Fundamental Insights into Photoelectrocatalytic Hydrogen Production with a Hole-Transport Bismuth Metal–Organic Framework

“…[ 272,273 ] Photocatalytic water splitting to produce H 2 based on semiconductors photocatalysts has been regarded as a sustainable and low‐cost method. [ 274,275 ] In recent years, although a large number of reports about semiconductor‐based photocatalysts for H 2 evolution have been highlighted, [ 276–280 ] obtaining higher catalytic activity with these semiconductors remains challenges. Hence, it is necessary to develop highly efficient photocatalysts with outstanding photocatalytic performances.…”

Section: The Photocatalysis Applications Of the Mofs‐based Compositesmentioning

confidence: 99%

A Review of MOFs and Their Composites‐Based Photocatalysts: Synthesis and Applications

Qian

Zhang

Pang

2021

Adv Funct Materials

361

157

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Photocatalysis is considered to be a green and environment‐friendly technology since it can convert solar energy into other types of chemical energies. Over the past several years, metal‐organic frameworks (MOFs)‐based photocatalysts have received remarkable research interest due to their unique morphology, high photocatalytic performance, good chemical stability, easy synthesis, and low cost. In this review, the synthetic strategies of developing MOFs‐based photocatalysts are first introduced. Second, the recent progress in the fabrication of various types of MOFs composites photocatalysts is summarized. Third, the different applications including hydrogen evolution reaction, oxygen evolution reaction, overall water splitting, nitrogen reduction reaction, carbon dioxide reduction reaction as well as photodegradation of organic pollutants of MOFs‐based photocatalysts are summed up. Finally, the challenges and some suggestions for the future development of MOFs‐ and their composites‐based photocatalysts are also highlighted. It is expected that this report will help researchers to systematically devise and develop highly efficient photocatalysts based on MOFs and their composites.

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“…CHC has also been used to study delocalization times in metal organic frameworks in the fs time regime, in fact, we used this method to investigate the charge transfer within a MOF used as a photocatalyst, and we also calculated the electron delocalization times. [212] Parallel to TAS, CHC and PL techniques, time-resolved microwave conductivity (TRMC) has been developed and established as a powerful technique to study photoactive layers. The TRMC technique measures the transient change in microwave reflectivity that carriers generated by a laser pulse impinged on a sample.…”

Section: Advanced Spectroscopy For In Situ and Operando Observationmentioning

confidence: 99%

Conjugated Porous Polymers: Ground‐Breaking Materials for Solar Energy Conversion

Barawi

Collado

Gomez‐Mendoza

et al. 2021

Advanced Energy Materials

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poor applicability for movable applications. Therefore, the development of new technologies to store renewable energy is really important to achieve the transition to a greener energy system. [3] Although new battery technologies will likely meet the need for cost-effective energy storage (1-3 days) for short time scales, fuels are the only effective option for longerterm, seasonal storage, and long-distance transportation applications. [4] Collecting and loading solar energy into electric power and more interestingly directly into valuable chemicals and fuels, as nature does through photosynthesis, is a highly desirable approach to solve this challenge. Since Honda and Fujishima [5] discovered the possibility to emulate this natural phenomenon using TiO 2 as photocatalyst more than 40 years ago, the scientific community has been trying to overcome the challenges hindering the commercialization of water splitting and CO 2 reduction. [6,7] During the past years, a large variety of systems have been proposed to drive the so-called artificial photosynthesis (AP), most of them based on inorganic semiconductors (ISs), usually metal oxides and metal chalcogenides. IS are able to absorb part of the solar spectrum and promote charge separation into electron and holes. In fact, there is a lot of recent work in the literature reviewing the use of ISs as photoabsorbers in photocatalytic, photoelectrochemical (PEC), and photovoltaic (PV) systems. [8,9] The achievements and improvements performed in this area have been always enormous. In this sense, among the huge number of materials explored, TiO 2 has been by far the most investigated until now due to its unique properties: high photoactivity and chemical stability, availability, and nontoxicity. [10,11] However, some ISs, and TiO 2 in particular, present well-known shortcomings in terms of low light absorption in the visible part of solar spectrum and fast charge recombination that limits electron donor-acceptor process. Therefore, the energy conversion efficiency achieved until now is still low. The improvement of this efficiency relies on the use of new materials that are able to harvest solar light and active toward CO 2 /N 2 reduction and water splitting. The most successful strategies to improve the photocatalyst performance so far have been: i) the modification of the optoelectronic properties of TiO 2 or other ISs, [12] ii) the use of organic materials as semiconductors, Solar energy conversion plays a very important role in the transition to a more sustainable energy system. In this sense, so many systems have been proposed to drive artificial photosynthesis, most of them based on inorganic semiconductors, and the achievements performed continue every day. However, most of these systems present well-known shortcomings as low light absorption, fast charge recombination, and lack of tunability, thus limiting their efficiency. The use of organic polymers in general and conjugated porous polymers (CPPs) in particular, opens the door to a multitude of new possibilities...

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Fundamental Insights into Photoelectrocatalytic Hydrogen Production with a Hole-Transport Bismuth Metal–Organic Framework

Cited by 71 publications

References 69 publications

Bi(iii) MOFs: syntheses, structures and applications

Bi(iii) MOFs: syntheses, structures and applications

A Review of MOFs and Their Composites‐Based Photocatalysts: Synthesis and Applications

Conjugated Porous Polymers: Ground‐Breaking Materials for Solar Energy Conversion

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