Novel hydrogen bonding composite based on copper phthalocyanine/perylene diimide derivatives p-n heterojunction with improved photocatalytic activity

Wang, Hailong; Zhao, Lele; Liu, Xueqiang; Xu, Jingyi; Hou, Wenlong; Wang, Jianmin; He, Enfang; Zhang, Ruijun; Zhang, Haiquan

doi:10.1016/j.dyepig.2016.11.014

Cited by 34 publications

(15 citation statements)

References 47 publications

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“…In order to overcome this obstacle, the development of efficient p-n heterojunctions has been proposed and attempted with the different levels of success during last few years. For instance, it was found that the fabricated p-n heterojunctions could effectively reduce the recombination rate of the photo-generated electron/hole pairs, which subsequently enhanced the overall photocatalytic activity [ 31 , 32 ]. Thus, the combination of p- and n- type semiconductor oxides has paved the way for further development of the p-n heterojunctions and optimization of their photocatalytic activity [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co3O4/n-ZnO Heterostructures

Shi

Liang

et al. 2018

Nanoscale Res Lett

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In this work, p-Co3O4/n-ZnO heterostructures were fabricated on Ni substrate by hydrothermal-decomposition method using cobaltous nitrate hexahydrate (Co(NO3)2·6H2O) and zinc acetate dihydrate (Zn(CH3COO)2·2H2O) as precursors with zinc acetate concentration varying from 5.0 to 55.0 mM. Structure and morphology of the developed samples were characterized by X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM). Effect of zinc acetate concentration on the photocatalytic activity of p-Co3O4/n-ZnO heterostructures was investigated by degradation of methyl orange (MO) under the UV light irradiation. The fabricated p-Co3O4/n-ZnO heterostructures exhibited higher photocatalytic activity than pure Co3O4 particles. In order to obtain the maximum photocatalytic activity, zinc acetate concentration was optimized. Specifically, at 35 mM of zinc acetate, the p-Co3O4/n-ZnO showed the highest photocatalytic activity with the degradation efficiency of MO reaching 89.38% after 72 h irradiation. The improvement of photocatalytic performance of p-Co3O4/n-ZnO heterostructures is due to the increased concentration of photo-generated holes on Co3O4 surface and the higher surface-to-volume ratio in the hierarchical structure formed by nano-lamellas.Graphical abstract Electronic supplementary materialThe online version of this article (10.1186/s11671-018-2604-4) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co3O4/n-ZnO Heterostructures

Shi

Liang

et al. 2018

Nanoscale Res Lett

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“…The charge separation enhancement obtained when KI is added to the solution is an obvious consequence of the increased number of free electrons; p-benzoquinone does not influence the photocatalytic process efficiency The supramolecular nature of the assembly obtained between a tetrasubstituted copper Pc (p-type organic semiconductor) and an asymmetrically substituted PDI (n-type) appears particularly important for the photocatalytic activity. The pyridine substituent was attached on the imide of a PDI derivative (PDI-P) promoting the formation of a hydrogen bonded supramolecular adduct with -COOH group of a 2,9,16,23-tetrakis(4 -carboxyphenoxy) phthalocyanine copper (CuTPc) after a simple procedure [126]. The photocatalytic performances of PDI-P/CuTPc supramolecular assembly were evaluated by monitoring the photodegradation of Rhodamine B (RhB) aqueous solutions under visible light illumination.…”

Section: Pcs-based Supramolecular Assemblies For Photocatalyst Applicmentioning

confidence: 99%

Applications of Photoinduced Phenomena in Supramolecularly Arranged Phthalocyanine Derivatives: A Perspective

2020

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This review focuses on the description of several examples of supramolecular assemblies of phthalocyanine derivatives differently functionalized and interfaced with diverse kinds of chemical species for photo-induced phenomena applications. In fact, the role of different substituents was investigated in order to tune peculiar aggregates formation as well as, with the same aim, the possibility to interface these derivatives with other molecular species, as electron donor and acceptor, carbon allotropes, cyclodextrins, protein cages, drugs. Phthalocyanine photo-physical features are indeed really interesting and appealing but need to be preserved and optimized. Here, we highlight that the supramolecular approach is a versatile method to build up very complex and functional architectures. Further, the possibility to minimize the organization energy and to facilitate the spontaneous assembly of the molecules, in numerous examples, has been demonstrated to be more useful and performing than the covalent approach.

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“…40,41 So, they are nonporous materials and their catalytic effect is not due to physical adsorption. According to the related photocatalytic reactions reported in recent years, [42][43][44] we think that the photocatalytic mechanism can be deduced as follows: the electrons (e − ) of complexes were excited from the valence band (VB) to the conduction band (CB). The same number of holes (h + ) remained in the valence band.…”

Section: Optical Band Gap and Photocatalytic Propertiesmentioning

confidence: 99%

Two new supramolecular compounds induced by novel vinylpyridine cationic templates: synthesis, structures and enhanced photocatalytic properties

Niu

2017

J Chem Sci

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Two novel complexes {(Pepy)[Cu 2 (SCN) 4 ]} n (1) and {(Pepy)[Cu 2 Br 4 ]} n (2) [Pepy=1-2-(Pyridinium-1-yl)-1-ethenyl) pyridinium] based on vinylpyridinium organic cation and cuprous salts have been synthesized and characterized by X-ray diffractometry. Compound 1 has a 2D polypseudorotaxane structure and compound 2 presents a 1D chain structure. Furthermore, the thermal gravimetric analysis (TGA), UV-Vis diffuse reflectance spectra, the morphology and the photocatalytic performances were studied carefully. Remarkably, both 1 and 2 exhibited good photocatalytic degradation abilities towards some dyes.

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Novel hydrogen bonding composite based on copper phthalocyanine/perylene diimide derivatives p-n heterojunction with improved photocatalytic activity

Cited by 34 publications

References 47 publications

Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co3O4/n-ZnO Heterostructures

Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co3O4/n-ZnO Heterostructures

Applications of Photoinduced Phenomena in Supramolecularly Arranged Phthalocyanine Derivatives: A Perspective

Two new supramolecular compounds induced by novel vinylpyridine cationic templates: synthesis, structures and enhanced photocatalytic properties

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