Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications

Chen, Tong; Liu, Lizhen; Hu, Cheng; Huang, Hongwei

doi:10.1016/s1872-2067(20)63769-x

Cited by 226 publications

(68 citation statements)

References 238 publications

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“…Since the synthesis of ROS is the initial rate-limiting step for photocatalytic environmental pollutant treatment, designing catalyst for enhancing ROS generation is crucial. 2D photocatalysts emerge with great potential for settling this matter as they can convert solar energy to ROS efficiently 1179 . Nitric oxide and nitrogen dioxide (collectively referred to as NOx) as one of the typical outdoor and indoor air pollutants, have attracted extensive environmental concern 1180 .…”

Section: Photocatalytic Environmental Treatmentmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

289

103

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Research on two-dimensional (2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications.In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief background 物理化学学报 Acta Phys. -Chim. Sin. 2021, 37 (12), 2108017 (3 of 151) introduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials (PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

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Section: Photocatalytic Environmental Treatmentmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

289

103

View full text Add to dashboard Cite

show abstract

“…Moreover, the N 1s spectra contained three individual peaks (Fig. 4b), located at 398.81, 400.81, and 404.25 eV, respectively, corresponding to C-N=C, N-(C) 3 and π-excitations [9]. Compared with pure CN, the peaks of Au/CN slightly shifted to lower binding energy, suggesting that the electron was probably transferred from Au to CN [34].…”

Section: Articlesmentioning

confidence: 99%

“…The quantum efficiency could reach 95% by adding effective hole sacrificial agents [1]. Although the incorporation of the sacrificial agent achieved a high quantum efficiency, it increased the economic cost and wasted the highly reactive oxygen species [2][3][4][5][6][7][8][9][10]. Therefore, it is necessary to find a substitute for the traditional sacrificial agents to improve solar energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Au/g-C3N4 heterostructure sensitized by black phosphorus for full solar spectrum waste-to-hydrogen conversion

Wang

et al. 2021

Sci. China Mater.

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Photocatalytic water splitting with simultaneous degradation of organic pollutants is an effective strategy to alleviate the increasingly serious energy and environmental crisis. However, the photocatalytic activity is restricted by the high charge recombination rate and limited sunlight utilization. Herein, black phosphorus (BP) with a broad sunlight response range was utilized as a photosensitizer to enhance the photocatalytic performance of the Au/carbon nitride (CN) heterostructure. The as-prepared BP/Au/CN exhibited a significantly enhanced H 2 generation rate of 1400.8 µmol h −1 g −1 under UV-vis light irradiation, which is almost 70 times higher than that of bare CN and BP/CN and 2 folds higher than that of the Au/CN heterojunction. Specifically, the optimal BP/Au/CN sample presented a waste-to-hydrogen production rate of 195.8 µmol h −1 g −1 with the degradation of bisphenol A, verifying the synergistic effect of the ternary heterojunction. The photocatalytic mechanism was systematically studied by the combination of experiments and theoretical calculations. The improved photocatalytic performance was derived from the overall sunlight absorption ability of BP, effective electron transfer media and plasmonic character of Au nanoparticles, as well as the matched work function and strong interaction of the three components. A unidirectional electron transfer from BP to Au and then to CN was established, which effectively improved the charge transfer capability, resulting from the appropriate Ohmic contact of Au and BP and the Schottky barrier constructed in Au/CN hybrid.

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“… 25 Hence, these aerogels can be conveniently recycled from the water. Hybrid macroscopic materials, including TiO 2 /rGO, 26 g-C 3 N 4 /rGO, 27,28 Bi 2 WO 6 /rGO, 29 and BiOBr/rGO, 30 are promising materials for photocatalysis. The use of 3D aerogels of CNQDs/rGO-based materials as photocatalysts is nothing new.…”

Section: Introductionmentioning

confidence: 99%