Concurrent Photocatalytic Hydrogen Generation and Dye Degradation Using MIL‐125‐NH<sub>2</sub> under Visible Light Irradiation

Kampouri, Stavroula; Nguyen, Tu N.; Spodaryk, Mariana; Palgrave, Robert G.; Züttel, Andreas; Smit, Berend; Stylianou, Kyriakos C.

doi:10.1002/adfm.201806368

Cited by 116 publications

(98 citation statements)

References 63 publications

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“…Nevertheless, the photocatalytic performance of pristine g‐C 3 N 4 is greatly limited because of the rapid recombination of photo‐generated electron‐hole pairs and low visible light utilization. Thus, various strategies, including morphology control, heterostructure construction, dye sensitization, and elemental or molecular doping , have been devoted to improving the transfer rate of the photogenerated charge carriers and modifying its band structures.…”

Section: Introductionmentioning

confidence: 99%

Delocalization of π‐Electron in Graphitic Carbon Nitride to Promote its Photocatalytic Activity for Hydrogen Evolution

Guan

Zhang

2019

ChemCatChem

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Polymers with a large π‐electron conjugated system have aroused extensive concern in photocatalysis due to their appropriate bandgap and high stability. In order to overcome such drawbacks as its inadequate visible light absorption and rapid recombination of the photogenerated electron‐hole pairs of graphic carbon nitride (g‐C3N4), a facile strategy is proposed to tune its electronic structure by grafting small molecules. The conjugated photocatalysts were prepared by attaching 3‐Aminobenzoic acid (AB) and 6‐Aminopyridine‐2‐carboxylic acid (APy) to the framework of g‐C3N4 via low‐temperature condensation. The obtained catalysts UCN‐AB and UCN‐APy possess higher visible light absorption that results from the modified band structure by extending π‐electron delocalization. Additionally, AB and APy worked as the electron acceptors which further enhance transport of the photogenerated electrons. The optimal UCN‐AB and UCN‐APy accomplished remarkable photocatalytic hydrogen evolution rates of 104.0 and 133.2 μmol/h, respectively, which are nearly four or five times of that over g‐C3N4. This work provides a simple and feasible modification approach to extend π‐electron delocalization in g‐C3N4 with a stronger visible light response and accelerated charge transfer for high photocatalytic hydrogen evolution.

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Section: Introductionmentioning

confidence: 99%

Delocalization of π‐Electron in Graphitic Carbon Nitride to Promote its Photocatalytic Activity for Hydrogen Evolution

Guan

Zhang

2019

ChemCatChem

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“…However, MIL-125(Ti) exhibits low absorption efficiency in visible light, quick reorganization of photogenerated electron-hole pairs, and disappointing photocatalytic ability, which connes its application to photocatalysis. 22 For the purpose of enhancing the photocatalytic performance of MIL-125(Ti), various MIL-125(Ti) composite photocatalysts have been prepared, such as BiVO 4 /MIL-125(Ti), 23 CdS/MIL-125(Ti), 24 MIL-125(Ti)/Ag/g-C 3 N 4 , 25 In 2 S 3 @MIL-125(Ti), 26 Ag/rGO/MIL-125(Ti), 22 Ag@MIL-125(Ti) 27 and so on. However, there is still a need to discover more appropriate semiconductor materials for the preparation of MIL-125(Ti) heterojunctions.…”

Section: Introductionmentioning

confidence: 99%

Visible-light-driven CQDs@MIL-125(Ti) nanocomposite photocatalyst with enhanced photocatalytic activity for the degradation of tetracycline

Che

Jiang

et al. 2019

RSC Adv.

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“…In addition to the above methods, endless streams of catalyst materials have been developed, such as p-nitrophenol (4-NP) and o-nitroaniline (2-NA) [9][10][11][12][13], in order to solve these compounds which pose a major hazard to the environment and human health. In addition, a common catalyst for palladium is well-known [14,15].…”

Section: Introductionmentioning

confidence: 99%

Facile Preparation and Highly Efficient Catalytic Performances of Pd-Cu Bimetallic Catalyst Synthesized via Seed-Mediated Method

et al. 2019

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With the rapid development of industry, the problem of environmental pollution has become increasingly prominent. Exploring and preparing green, efficient, and low cost catalysts has become the key challenge for scientists. However, some conventional preparation methods are limited by conditions, such as cumbersome operation, high energy consumption, and high pollution. Here, a simple and efficient seed-mediated method was designed and proposed to synthesize a highly efficient bimetallic catalyst for catalyzing nitro compounds. A Pd-Cu bimetallic composite (BCM) can be prepared by synthesizing the original seed crystal of precious metal palladium, then growing the mature nanocrystalline palladium and supporting the transition metal copper. Importantly, after eight consecutive catalytic cycles, the conversion of the catalyzed 2-NA was 84%, while the conversion of the catalyzed 4-NP was still 72%. And the catalytic first order rates of 2-NA and 4-NP constants were 0.015 s−1, and 0.069 s−1, respectively. Therefore, current research of nanocomposites catalyst showed great significance for serious environmental pollution problems and the protection of living environment, providing a new idea for the preparation of new bimetallic catalytic materials.

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Concurrent Photocatalytic Hydrogen Generation and Dye Degradation Using MIL‐125‐NH₂ under Visible Light Irradiation

Cited by 116 publications

References 63 publications

Delocalization of π‐Electron in Graphitic Carbon Nitride to Promote its Photocatalytic Activity for Hydrogen Evolution

Delocalization of π‐Electron in Graphitic Carbon Nitride to Promote its Photocatalytic Activity for Hydrogen Evolution

Visible-light-driven CQDs@MIL-125(Ti) nanocomposite photocatalyst with enhanced photocatalytic activity for the degradation of tetracycline

Facile Preparation and Highly Efficient Catalytic Performances of Pd-Cu Bimetallic Catalyst Synthesized via Seed-Mediated Method

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Concurrent Photocatalytic Hydrogen Generation and Dye Degradation Using MIL‐125‐NH2 under Visible Light Irradiation

Cited by 116 publications

References 63 publications

Delocalization of π‐Electron in Graphitic Carbon Nitride to Promote its Photocatalytic Activity for Hydrogen Evolution

Delocalization of π‐Electron in Graphitic Carbon Nitride to Promote its Photocatalytic Activity for Hydrogen Evolution

Visible-light-driven CQDs@MIL-125(Ti) nanocomposite photocatalyst with enhanced photocatalytic activity for the degradation of tetracycline

Facile Preparation and Highly Efficient Catalytic Performances of Pd-Cu Bimetallic Catalyst Synthesized via Seed-Mediated Method

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Concurrent Photocatalytic Hydrogen Generation and Dye Degradation Using MIL‐125‐NH₂ under Visible Light Irradiation