In-situ self-assembly synthesis of 2D/2D CdS/g-C3N4 heterojunction for efficient visible-light photocatalytic performance

Qiu, Lingfang; Qiu, Xiaobin; Li, Ping; Ma, Mengfan; Chen, Xiangshu; Duo, Shuwang

doi:10.1016/j.matlet.2020.127566

Cited by 13 publications

(5 citation statements)

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“…In addition, g-C 3 N 4 -based heterojunctions (e.g., Bi 2 O 2 CO 3 /g-C 3 N 4 ; Wang Z. Y. et al, 2016 , CoTiO 3 /g-C 3 N 4 ; Ye et al, 2016 , Ag 2 MoO 4 /g-C 3 N 4 ; Zhang and Ma, 2017b , C/g-C 3 N 4 ; Shen et al, 2017 , Ag 6 Mo 10 O 33 /g-C 3 N 4 ; Zhang and Ma, 2017a , MoS 2 /g-C 3 N 4 ; Liu Y. Z. et al, 2018 , Bi 3 O 4 Cl/g-C 3 N 4 ; Che et al, 2018 , TiO 2 /g-C 3 N 4 ; Tao et al, 2019 , WO 3 /g-C 3 N 4 ; Fu et al, 2019 , CdS/g-C 3 N 4 ; Qiu et al, 2020 , ZnO/g-C 3 N 4 ; Gao et al, 2020 , Ba 5 Nb 4 O 15 /g-C 3 N 4 ; Wang et al, 2020 , Co 3 (PO 4 ) 2 /g-C 3 N 4 ; Shi et al, 2020 , Cs 3 Bi 2 I 9 /g-C 3 N 4 ; Bresolin et al, 2020 ) have been developed to enhance the photocatalytic performance. However, few studies have aimed at extending the light absorption range of g-C 3 N 4 to the near-infrared (NIR) region.…”

Section: Introductionmentioning

confidence: 99%

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

Liu

2020

Front. Chem.

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A new photocatalyst denoted as mTHPC/pCN was prepared by modifying protonated graphitic carbon nitride (pCN) by meso-tetrahydroxyphenylchlorin (mTHPC). Relevant samples were characterized via various methods including zeta potential measurements, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, N 2 adsorption-desorption, transmission electron microscopy, ultraviolet-visible-near-infrared spectroscopy, electrochemical impedance spectroscopy, photocurrent response measurements, electron spin resonance spectroscopy, and phosphorescence spectroscopy. Compared with pCN, mTHPC/pCN shows enhanced absorption in the visible and near-infrared regions and thus higher photocatalytic activity in hydrogen evolution. A possible mechanism for mTHPC/pCN is proposed.

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Section: Introductionmentioning

confidence: 99%

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

Liu

2020

Front. Chem.

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“…Preparation of g-C 3 N 4 . The synthesis process was carried out according to our previous works [14,15]. Typically, 15 g of ammonium chloride and 3 g of dicyandiamide were dissolved in 50 ml of water, and the mixture was heated to 80 °C under magnetically stirring until the materials did not stick to the glass rod.…”

Section: Synthesis Methodsmentioning

confidence: 99%

In situ self-assembly fabrication of ultrathin sheet-like CuS modified g–C₃N₄ heterojunction and its enhanced visible-light photocatalytic performance

Liu

Qiu²,

Wen³

et al. 2022

Nanotechnology

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Photocatalysts with heterojunction structure have been widely used for organic degradation. In this study, CuS/g-C3N4 heterojunction was formed by in-situ self-assembly via a simply hydrothermal method. A series of characterizations were applied to analyzing the morphology, structure, optical properties and photo-induced electron transfer of the samples. The effect of CuS mass ratio in the CuS/g-C3N4 composite on methyl blue (10 mg/L) degradation under visible-light illumination was discussed. When CuS mass ratio was 60%, CuS/g-C3N4 behaved the highest photocatalytic efficiency which is 17 times higher than that of pure g-C3N4, and the optimal heterojunction exhibited promising photocatalytic stability as well. The synthesized CuS/g-C3N4 with intimate contact and promising photocatalytic performance provides important implications on analogous researches on g-C3N4-based heterojunctions for photocatalytic applications.

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“…The fabrication of BDCNN/CdS composite was carried out by in situ hydrothermal method. The procedure applied here is based on the synthesis of pure CdS [10]. Firstly, 0.122 g CdCl 2 •5H 2 O was dissolved in 20 ml diethylenetriamine (DETA) and sonicated for 30 min.…”

Section: Construction Of Bdcnn/cds Heterostructuresmentioning

confidence: 99%

“…By the forming of built-in electric field within a space charge region, the spatially separation and faster migration of photoinduced electrons and holes can be successfully realized [8,9]. In addition, 2D/2D hybrids endow higher charge mobility across the interaction surfaces and shorten charge transport distance based on much larger effective contact area between two components [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and enhanced visible-light photocatalytic H₂ production of B-doped N-deficient g-C₃N₄/CdS Hybrids with robust 2D/2D hetero-interface interaction

et al. 2023

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2D layered photocatalysts with proper electronic structure have sparked much attention in the field of visible-light photocatalysis for H2 production. Herein, by simply calcining the mixture of ultrathin g-C3N4 (CNN) and NaBH4, heteroatom B and N defect were simultaneously introduced into g-C3N4. The obtained modified g-C3N4 (BDCNN) was further coupled with 2D flower-like CdS nanosheet. The optimal 2D/2D BDCNN/CdS-15% heterojunction behaved ideal photocatalytic activity for H2 revolution by water splitting, and the highest H2 revolution rate was as high as 1013.8 molg-1h-1, which was 6.7 times, 2 times, and 5.8 times of the corresponding values of pristine CNN, BDCNN and CdS respectively. It was evidenced that the band structure of 2D/2D BDCNN/CdS-15% was well tuned for better visible-light adsorption and higher separation efficiency of photo-induced carriers for enhancing H2 revolution performance. The achievement in this study provided informative principles for exploring g-C3N4 based heterojunctions with higher H2-production performance.

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In-situ self-assembly synthesis of 2D/2D CdS/g-C3N4 heterojunction for efficient visible-light photocatalytic performance

Cited by 13 publications

References 7 publications

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

In situ self-assembly fabrication of ultrathin sheet-like CuS modified g–C₃N₄ heterojunction and its enhanced visible-light photocatalytic performance

Fabrication and enhanced visible-light photocatalytic H₂ production of B-doped N-deficient g-C₃N₄/CdS Hybrids with robust 2D/2D hetero-interface interaction

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In-situ self-assembly synthesis of 2D/2D CdS/g-C3N4 heterojunction for efficient visible-light photocatalytic performance

Cited by 13 publications

References 7 publications

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

In situ self-assembly fabrication of ultrathin sheet-like CuS modified g–C3N4 heterojunction and its enhanced visible-light photocatalytic performance

Fabrication and enhanced visible-light photocatalytic H2 production of B-doped N-deficient g-C3N4/CdS Hybrids with robust 2D/2D hetero-interface interaction

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About

In situ self-assembly fabrication of ultrathin sheet-like CuS modified g–C₃N₄ heterojunction and its enhanced visible-light photocatalytic performance

Fabrication and enhanced visible-light photocatalytic H₂ production of B-doped N-deficient g-C₃N₄/CdS Hybrids with robust 2D/2D hetero-interface interaction