2018
DOI: 10.1002/smll.201803447
|View full text |Cite
|
Sign up to set email alerts
|

Carbon‐Dot‐Based Heterojunction for Engineering Band‐Edge Position and Photocatalytic Performance

Abstract: A photocatalytic reaction is always governed by energy band configuration of the catalyst, but its modulation is challenging. Here, the adjustment of band‐edge positions of Ag3PO4 through fluorescent carbon dots is reported for the first time. Both Ag3PO4 and carbon dots which keep the similar sizes constitute a heterojunction. Such heterostructure not only promotes visible light absorption, photogenerated charge separation, and transfer, but it also transforms photocatalytic activity of Ag3PO4 from photooxida… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

0
17
0

Year Published

2020
2020
2023
2023

Publication Types

Select...
7

Relationship

2
5

Authors

Journals

citations
Cited by 57 publications
(17 citation statements)
references
References 35 publications
0
17
0
Order By: Relevance
“…6 b . The conjugation provided a channel for the transfer of electrons from N‐CDs to HA that could effectively suppress the recombination of photoexcited electron–hole pairs, offering a potential to improve the photocatalytic performance [8, 17]. Therefore, mHA/N‐CDs‐1 exhibited higher photocatalytic activity in comparison to N‐CDs‐1.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…6 b . The conjugation provided a channel for the transfer of electrons from N‐CDs to HA that could effectively suppress the recombination of photoexcited electron–hole pairs, offering a potential to improve the photocatalytic performance [8, 17]. Therefore, mHA/N‐CDs‐1 exhibited higher photocatalytic activity in comparison to N‐CDs‐1.…”
Section: Resultsmentioning
confidence: 99%
“…Therefore, combining CDs with other nanomaterials to form hybrids have gained much attention [12][13][14][15]. Our group has also done lots of research work on CDs and their composites [16][17][18][19]. Despite the success of existing materials and technologies, it is still challenging to achieve the CDs-based composites with expected properties.…”
mentioning
confidence: 99%
“…Carbon allotropes with the advantages of excellent electrical conductivity, chemical stability, non‐toxicity, cost‐effectiveness, and more importantly, the controllable dimensionality in nanoscale, have drawn immense attention in heterojunction photocatalysts. [ 156,157 ] CQDs, which is quite inert for photoreduction of CO 2 to CH 4 due to the flash deactivation of charge carriers, exhibited an improved light harvesting ability when decorated on Bi 2 WO 6 nanosheets. Given the fact that most photocatalysts suffer from undesirable utilization in near‐IR range, which takes up nearly 50% of solar illumination, CQDs could convert the low‐energy NIR light to visible light, which would be responded by Bi 2 WO 6 nanosheets to initiate the photogenic electron‐hole pairs separation.…”
Section: Hybrid Constructionmentioning
confidence: 99%
“…Yi [7] reported Ag 3 PO 4 had excellent performance on the evolution of O 2 from water splitting and remove of organic dyes under the visible-light exposure due to the capability to effectively separate photoexcited electrons and holes with suitable band gap of 2.45 eV, achieving a quantum yield of up to 90% (λ>420 nm), thus extending a new application of Ag 3 PO 4 in the field of photo-catalysis. The visible-light photo-catalytic degradation properties of Ag 3 PO 4 can be further enhanced by controlling its morphology [8], feature size [9], surface area [10] and low-index facets [11], by assembling with other semiconductors such as TiO 2 [6,12,13] , Fe 3 O 4 [14], AgX (X=Cl, Br, I) [15][16][17], In(OH) 3 [18], BiVO 4 [19], MOF [20], MoSe 2 [21], CeO 2 [22], N-Sr 2 Nb 2 O 7 [23], g-C 3 N 4 [24], polyaniline [25] and carbon based materials including graphene (GR) [26], graphene oxide (GO) [27], reduced graphene oxide (RGO) [28], carbon quantum dots (CQDs) [29]and carbon nanotubes (CNTs) [30] to construct a surface heterojunction, and the doping of atomic impurities [31]. The photo-catalytic activity performance of Ag 3 PO 4 -composites has been summarized into table 1.…”
Section: Introductionmentioning
confidence: 99%
“…The photo-catalytic activity performance of Ag 3 PO 4 -composites has been summarized into table 1. There are many typical organic pollutants to evaluate the photocatalytic activity of Ag 3 PO 4 -composites photocatalysts, such as using organic dyes (methylene blue-MB [8,13,24,30], rhodamine B-RhB [12,18,19], methyl orange-MO [22,29], etc), preservatives (methylparaben [16], phenol [20,25,28], etc), insecticides (imidacloprid [14], etc), antibiotic (tetracycline [26], etc). Compared with pure Ag 3 PO 4 photocatalyst, the Ag 3 PO 4 -composites have a certain degree of improvement in the photocatalytic activity on different organic pollutants.…”
Section: Introductionmentioning
confidence: 99%