Preparation of graphene oxide-loaded Ag3PO4@AgCl and its photocatalytic degradation of methylene blue and O2 evolution activity under visible light irradiation

Cao, Muhan; Wang, Peifang; Ao, Yanhui; Wang, Chao; Hou, Jun; Qian, Jin

doi:10.1016/j.ijhydene.2014.09.175

Cited by 26 publications

(10 citation statements)

References 71 publications

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“…Recently, a variety of Ag-based semiconductor photocatalysts have been capturing considerable attention because of their outstanding photocatalytic performance in decomposition of organic pollutants, water splitting and CO 2 reduction [12][13][14]. Among them, Ag 2 CrO 4 is gaining increasing concern due to its narrow band gap (1.75 eV), unique crystal structure and electronic structure [15,16].…”

Section: Introductionmentioning

confidence: 99%

Photocorrosion inhibition and high-efficiency photoactivity of porous g-C3N4/Ag2CrO4 composites by simple microemulsion-assisted co-precipitation method

Shang

Chen

Liu

et al. 2017

Applied Catalysis B: Environmental

179

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A facile microemulsion-assisted co-precipitation method was carried out to synthesize nano-sized Ag 2 CrO 4 highly dispersed on the surface of porous g-C 3 N 4 as high-efficiency visible-light-driven composite photocatalysts for the first time. The structure and morphology of the composites were systematically characterized by various techniques. Compared with Ag 2 CrO 4 and g-C 3 N 4 , g-C 3 N 4 /Ag 2 CrO 4 composites showed a dramatically increased photocatalytic activity in degradation of rhodamine B (RhB) and methylene blue (MB). The optimum mass ratio of the Ag 2 CrO 4 to g-C 3 N 4 was about 30 wt%, the degradation rate of which were 6.1 (7.9) and 9.7 (15.2) times higher than pure Ag 2 CrO 4 and g-C 3 N 4 in RhB (MB) degradation, respectively. The excellent photocatalytic activity and stability mainly benefited from the synergistic effect including smaller Ag 2 CrO 4 particle size, high specific surface area of the composites and matched band potentials which not only promoted the separation of photon-generated charge carriers, but also inhibited the photocorrosion of Ag 2 CrO 4. Further study revealed that the photocatalytic mechanism followed a Z-scheme which provided an efficient transfer pathway for charge carriers meanwhile endowed the composites with strong oxidation and reduction ability. Hence the porous g-C 3 N 4 /Ag 2 CrO 4 composites are potential in environmental purification.

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Section: Introductionmentioning

confidence: 99%

Photocorrosion inhibition and high-efficiency photoactivity of porous g-C3N4/Ag2CrO4 composites by simple microemulsion-assisted co-precipitation method

Shang

Chen

Liu

et al. 2017

Applied Catalysis B: Environmental

179

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“…When RT was 30 min, the RE of prometryn, metribuzin and bentazone reached the maxima of 99.86%, 98.20% and 97.12%, respectively. Silver nanoparticles deposited on the surface of photocatalysts induced the plasmonic effect, and meanwhile h + generated in the photocatalytic process reacted with Cl -to produce Cl 0 free radicals with a strong oxidation activity [10]. Ag/AgCl/Ag 3 PO 4 samples demonstrated discrepant photocatalytic performances for herbicides with varying the proportion of Cl -and PO 4 3-(Cl/P), which was displayed in Fig.…”

Section: Resultsmentioning

confidence: 98%

“…However, it is activated only in the ultraviolet region, which restricted its application in a natural light condition [2]. Thus, there have been many researchers making great efforts to use visible light responded photocatalysts in water and wastewater treatment, which can be activated by the solar and possess advantage of energy saving [4,[9][10][11]. Ag 3 PO 4 was reported as a semiconductor with extremely high photocatalytic activities for the degradation of organic contaminants under visible irradiation.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Selective Herbicides Using Ag/AgCl/Ag3PO4 Plasmonic Nanocatalyst under Visible Irradiation

Zhao¹,

Chen

Zhou³

2015

Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015

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Abstract. Ag/AgCl/Ag 3 PO 4 plasmonic nanocatalysts were prepared through the ion exchange and subsequently light-induced process. The obtained samples showed a high photodegradation capacity for prometryn, bentazone and metribuzin under visible light irradiation. Effects of reduction time (RT) and Cl/P in the synthesis process on the photocatalytic activity of Ag/AgCl/Ag 3 PO 4 were explored in this study. When RT was 30 min, the RE of prometryn, metribuzin and bentazone reached the maxima of 99.86%, 98.20% and 97.12%, respectively. As Cl/P was 1.5, prometryn, bentazone and metribuzin were decomposed completely within 15, 30 and 20 min, respectively. The stability of Ag/AgCl/Ag 3 PO 4 photocatalysts was investigated and confirmed with 5-cycling experiments.

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“…A substantial study on heterojunction formation with carbonaceous materials due to their immense inherent properties to act as electron trapping agents or as electron mediators, etc. Cao et al [65] prepared GO decorated AgCl/Ag 3 PO 4 composites and studied the individual role of GO and AgCl in improving the O 2 evolution ability. The epitaxial growth of AgCl NPs on Ag 3 PO 4 extends visible light absorption and improves BET surface area from 2.15 m 2 • g À 1 for pure Ag 3 PO 4 to 2.50 m 2 • g À 1 in the prepared composite.…”

Section: Type-ii Heterostructuresmentioning

confidence: 99%

A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

et al. 2021

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The escalating demands for energy sources and cumulative global environmental apprehensions have synergistically contributed to advancements in solar-driven technologies to utilize renewable energy resources. Photocatalytic water splitting, which is considered the most promising and sustainable process to harness solar energy for H 2 and O 2 evolution, is of particular interest. The photocatalytic performance of Ag 3 PO 4 is attributed to its visible-light active 2.43 eV band gap energy, tunable facet crystal structure, and high thermal stability. The suitable valence band (+ 2.85 V) potential of Ag 3 PO 4 is suggestive of its extraordinary oxidation capability. Herein, recent advances in preparation, characterization, and photocatalytic activity of silver orthophosphate (Ag 3 PO 4 ) based photocatalytic materials for water splitting are reviewed. The well-suited synthesis methods and rational engineering aspects for eliminating the significant limitations of self-photocorrosion and minimum absorption in the solar spectrum are highlighted. The achievement of Ag 3 PO 4 -based photocatalytic materials in water splitting is elaborately discussed, with the main focus on heterostructure formation, facet morphology, and plasmonic phenomena. Besides, some vital accomplishments in bandgap modulation and attaining the required surface energy to achieve an attractive yield of H 2 and O 2 in the region of visiblelight are also presented. Finally, a conclusive summary outlines this all-inclusive review with appropriate recommendations for photocatalytic water splitting to meeting a green approach shortly. We expect this comprehensive study could provide a guideline to tailor more efficient Ag 3 PO 4 -based photocatalytic materials with broad research prospects toward water splitting and other sustainable applications.

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Preparation of graphene oxide-loaded Ag3PO4@AgCl and its photocatalytic degradation of methylene blue and O2 evolution activity under visible light irradiation

Cited by 26 publications

References 71 publications

Photocorrosion inhibition and high-efficiency photoactivity of porous g-C3N4/Ag2CrO4 composites by simple microemulsion-assisted co-precipitation method

Photocorrosion inhibition and high-efficiency photoactivity of porous g-C3N4/Ag2CrO4 composites by simple microemulsion-assisted co-precipitation method

Photocatalytic Degradation of Selective Herbicides Using Ag/AgCl/Ag3PO4 Plasmonic Nanocatalyst under Visible Irradiation

A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

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Preparation of graphene oxide-loaded Ag3PO4@AgCl and its photocatalytic degradation of methylene blue and O2 evolution activity under visible light irradiation

Cited by 26 publications

References 71 publications

Photocorrosion inhibition and high-efficiency photoactivity of porous g-C3N4/Ag2CrO4 composites by simple microemulsion-assisted co-precipitation method

Photocorrosion inhibition and high-efficiency photoactivity of porous g-C3N4/Ag2CrO4 composites by simple microemulsion-assisted co-precipitation method

Photocatalytic Degradation of Selective Herbicides Using Ag/AgCl/Ag3PO4 Plasmonic Nanocatalyst under Visible Irradiation

A Strategy to Develop Efficient Ag3PO4‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

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A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges