Bottom-up fabrication of graphitic carbon nitride nanosheets modified with porphyrin via covalent bonding for photocatalytic H2 evolution

Tian, Shufang; Chen, Sudi; Ren, Xitong; Cao, Ronghui; Hu, Haiyan; Bai, Feng

doi:10.1007/s12274-019-2562-x

Cited by 47 publications

(22 citation statements)

References 58 publications

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“…The carbon nitride nanosheets (CNNS) are a semiconductor material that has attracted a lot of attention from the research community due to their excellent properties such as low toxicity, ease of preparation, photostability, and photoluminescence, which is attributed to the high degree of condensation of the constituent atoms, electrocatalytic and photocatalytic activity, larger surface area and electrical properties. In addition, they have a highly functionalized surface, which allows greater interaction with other species, making them excellent candidates to act as electrode modifiers [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

A Novel Carbon Nitride Nanosheets‐based Electrochemical Sensor for Determination of Hydroxychloroquine in Pharmaceutical Formulation and Synthetic Urine Samples

Silva

Sant’Anna

Gevaerd³

et al. 2021

Electroanalysis

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This study introduces modified carbon paste electrodes with carbon nitride nanosheets (CNNS) and outlines their application for the determination of hydroxychloroquine sulfate (HCQ) in tablets and synthetic urine samples. CNNS were synthesized by hydrothermal route (200°C, 10 h) using melamine and citric acid as their precursors. The carbon nitride nanosheets-based electrode (CNNS/E) presented a linear dynamic range for HCQ (LDR), ranging from 10.0 nmol l À 1 to 6.92 μmol l À 1 , and detection (LOD) and quantification limits (LOQ) of 0.16 nmol l À 1 and 0.52 nmol l À 1 , respectively. LOD and LOQ were calculated by the equations: LOD = 3(S d /b), and LOQ = 10(S d /b). The modified sensor presented excellent relative standard deviations for parameters such as repeatability (2.39 % and 1.87 %) and reproducibility (3.22 % and 2.32 %) in HCQ oxidation peaks (1 and 2). The CNNS/E has not shown significant variations in its anodic signal intensity in the presence of some organic and inorganic substances. It is worth bearing in mind that CNNS/E can be easily manufactured and the sensor has the lowest HCQ detection limits reported so far. The proposed sensor was successfully applied for HCQ determination in tablets and synthetic urine, showing good recovery values and an error of 0.60 % about comparative method in tablet samples, assuring the quality of the method.

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Section: Introductionmentioning

confidence: 99%

A Novel Carbon Nitride Nanosheets‐based Electrochemical Sensor for Determination of Hydroxychloroquine in Pharmaceutical Formulation and Synthetic Urine Samples

Silva

Sant’Anna

Gevaerd³

et al. 2021

Electroanalysis

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“…Photosensitizers are the general term of molecules that can absorb light and transfer energy to other materials. Some researchers modified g-C 3 N 4 with photosensitizers such as phthalocyanine (Zhang et al, 2014 ), a combination of organic dye and zinc phthalocyanine derivative (Zhang X. H. et al, 2015 ), μ-oxo dimeric iron (III) porphyrin (Wang D. H. et al, 2016 ), zinc phthalocyanine (Liu Q. W. et al, 2018 ), mesotetrakis (carboxyphenyl) porphyrins (Da Silva et al, 2018 ), copper octacarboxyphthalocyanine (Ouedraogo et al, 2018 ), zinc phthalocyanine derivative (Zeng et al, 2019 ), multiporphyrin (Yang et al, 2019 ), zinc (II) 1, 8(11), 15(18), 22(25) -tetrakis (4-carboxylphenoxy) phthalocyanine (α-ZnTcPc) (He et al, 2019 ), porphyrin (Tian et al, 2019 ), Chlorin e6 (Ce6) (Liu et al, 2020a ), 3,4,9,10-perylenetetracarboxylic acid anhydride (PTCDA) (Yuan et al, 2020 ), tetra (4-carboxyphenyl) porphyrin iron (III) chloride (FeTCPP) (Zhang et al, 2020 ), protoporphyrin (Pp) (Liu et al, 2020b ), and naphthalimide-porphyrin (Li L. L. et al, 2020 ). However, more examples in this regard are needed because this is a very interesting topic.…”

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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“…Some complex molecules including macrocyclic porphyrin, [ 59 ] cyclodextrin [ 60 ] and self‐designed molecules [ 61 ] have been used to fabricate novel intramolecular GCN based D‐A conjugated copolymers. Che et al .…”

Section: Synthesis Of Gcn Based Materials With Ictmentioning

confidence: 99%

“…successfully incorporated porphyrin into the matrices of GCN sheets by covalent bonding via one‐pot thermal copolymerization. [ 59 ] Here, 5,10,15,20‐tetrakis (4‐(2,4‐diamino‐1,3,5‐triazinyl) phenyl)‐porphyrin (TDPP) was chosen as the dopant to copolymerize with urea through covalent bonding by forming in‐plane D‐A heterostructure for extended π system (Figure 6B).…”

Section: Synthesis Of Gcn Based Materials With Ictmentioning

confidence: 99%

In‐depth Understanding of the Effects of Intramolecular Charge Transfer on Carbon Nitride Based Photocatalysts†

et al. 2021

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Intramolecular charge transfer (ICT) derived from a donor‐acceptor system has been applied for years to enhance the charge mobility in the field of organic photovoltaics and chemical sensing. Similar strategies have gradually been developed in polymeric graphitic carbon nitride (GCN) photocatalytic systems for promoting the light absorption and charge separation. However, there are no reviews focusing on the effects of ICT after the modification of GCN so far. Herein, we summarize some typical literature on GCN engineering to expound profoundly the roles of ICT in electronic properties regulation in terms of in‐situ formation and molecular coupling. At last, some important perspectives are also proposed. This review will deepen understanding of the traditional theory for a new recognition among such many methods to improve the performance of GCN.

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Bottom-up fabrication of graphitic carbon nitride nanosheets modified with porphyrin via covalent bonding for photocatalytic H2 evolution

Cited by 47 publications

References 58 publications

A Novel Carbon Nitride Nanosheets‐based Electrochemical Sensor for Determination of Hydroxychloroquine in Pharmaceutical Formulation and Synthetic Urine Samples

A Novel Carbon Nitride Nanosheets‐based Electrochemical Sensor for Determination of Hydroxychloroquine in Pharmaceutical Formulation and Synthetic Urine Samples

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

In‐depth Understanding of the Effects of Intramolecular Charge Transfer on Carbon Nitride Based Photocatalysts†

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