Fast electron transfer and enhanced visible light photocatalytic activity using multi-dimensional components of carbon quantum dots@3D daisy-like In2S3/single-wall carbon nanotubes

Li, Jinze; Ma, Yue; Ye, Zhefei; Zhou, Mingjun; Wang, Huiqin; Ma, Changchang; Wang, Dongdong; Huo, Pengwei; Yan, Yongsheng

doi:10.1016/j.apcatb.2016.11.021

Cited by 146 publications

(32 citation statements)

References 82 publications

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“…Ultimately, the NOR and its intermediates could be transformed to inorganic small molecules or ions, such as CO 2 , H 2 O, F − , and NO 3 − following a prolonged irradiation. Similar observations were also made during ozonation and photocatalytic degradation of fluoroquinolone antibiotics.…”

Section: Resultssupporting

confidence: 79%

Fabrication of 3D Hierarchical Byttneria Aspera‐Like Ni@Graphitic Carbon Yolk–Shell Microspheres as Bifunctional Catalysts for Ultraefficient Oxidation/Reduction of Organic Contaminants

Liu

Wang

et al. 2018

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The search for earth‐abundant, low‐cost, recyclable, multifunctional as well as highly active catalysts remains the most pressing demand for heterogeneous catalytic elimination of pollutants in water environment remediation. Herein, a porous graphitic carbon‐encapsulated Ni nanoparticles (NPs) hybrid (Ni@GC) is designed/constructed by direct pyrolysis of a Ni‐based metal−organic framework (MOF) in N2. The resulting Ni@GC exhibits a unique 3D hierarchical byttneria aspera‐like yolk–shell structure with a high surface area, abundant active sites as well as good microwave (MW)‐absorbing performance. The outstanding MW‐driven oxidation of norfloxacin to inorganic molecules and direct catalytic reduction of 4‐nitrophenol to less toxic and more useful chemical raw material (4‐aminophenol) can originate from the synergistic effects, including the presence of both zero‐valent Ni NPs as the active center and graphitic carbon as the protective layer/electron acceptor as well as unique porous yolk‐void‐shell structure, which facilitates the MW energy‐harvesting and/or rapid mass transfer of the reactant/product in the channels and cavities. Accordingly, the localized surface plasmon resonance–excitation and electronic relay mechanism are proposed to account for the catalytic oxidation/reduction, respectively. This work provides a new strategy for the design/assembly of multifunctional metal@GC hybrids with a unique architecture and elucidates new opportunities for remediation of environmental water.

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Section: Resultssupporting

confidence: 79%

Fabrication of 3D Hierarchical Byttneria Aspera‐Like Ni@Graphitic Carbon Yolk–Shell Microspheres as Bifunctional Catalysts for Ultraefficient Oxidation/Reduction of Organic Contaminants

Liu

Wang

et al. 2018

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“…The formation of In 2 S 3 NPs on the surface of Au NPs can be clearly seen in Figure F−H. In Figure H, the lattice spacing of 0.32 nm corresponds to In 2 S 3 (311) plane . This result implies that In 2 S 3 nanoparticles have been successfully deposited on the surface of Au nanoparticles to form ternary structure In 2 S 3 –Au–BiVO 4 .…”

Section: Resultsmentioning

confidence: 85%

Au‐Mediated Composite In₂S₃–Au–BiVO₄ with Enhanced Photocatalytic Activity for Organic Pollutant Degradation

Bao

Wang

et al. 2018

ChemistrySelect

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A ternary composite photocatalyst In2S3–Au–BiVO4 was fabricated by stepwise photo‐reduction and deposition−precipitation methods. It was found that the Au nanoparticles (NPs) were selectively anchored on the {010} facets of decahedral BiVO4 crystals due to the oriented accumulation of electrons during the photo‐reduction stage. Based on the strong interaction between S−Au, In2S3 was loaded on the surface of Au NPs on BiVO4 {010} facets. Photocatalytic degradations of organic contaminants Rhodamine B and phenol indicated that In2S3–Au–BiVO4 showed evidently improved visible light photocatalytic activity than BiVO4, Au–BiVO4, and In2S3–BiVO4. On the basis of the photoelectrochemical and photoluminescence (PL) analyses, it can be inferred that the facet hetero‐juction and Au‐mediated composite structures of In2S3–Au–BiVO4 can improve the separation efficiency of photo‐generated carriers as well as make the carriers keep higher redox ability. The radical trapping experiments indicated that for In2S3–Au–BiVO4, •OH, h+, and •O2− are the main reactive species which take part in the organic contaminant degradation.

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“…Figures 4(b) , 4(c) , and 4(d) show the high-resolution XPS spectra for In 2 S 3 /CNF sample. The XPS peaks ( Figure 4(b) ) at 444.1 and 452.7 eV correspond to the In3d 5/2 and In3d 3/2 states [ 27 ], respectively. The peak at 161.9 eV in Figure 4(c) corresponds to the S2p 3/2 state of S 2 2− moieties.…”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Indium Sulfide/Flexible Electrospun Carbon Nanofiber for Enhanced Photocatalytic Efficiency and Its Application

Liu

Dong

et al. 2017

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Heterojunction system has been proved as one of the best architectures for photocatalyst owing to extending specific surface area, expanding spectral response range, and increasing photoinduced charges generation, separation, and transmission, which can provide better light absorption range and higher reaction site. In this paper, Indium Sulfide/Flexible Electrospun Carbon Nanofiber (In2S3/CNF) heterogeneous systems were synthesized by a facile one-pot hydrothermal method. The results from characterizations of SEM, TEM, XRD, Raman, and UV-visible diffuse reflectance spectroscopy displayed that flower-like In2S3 was deposited on the hair-like CNF template, forming a one-dimensional nanofibrous network heterojunction photocatalyst. And the newly prepared In2S3/CNF photocatalysts exhibit greatly enhanced photocatalytic activity compared to pure In2S3. In addition, the formation mechanism of the one-dimensional heterojunction In2S3/CNF photocatalyst is discussed and a promising approach to degrade Rhodamine B (RB) in the photocatalytic process is processed.

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Fast electron transfer and enhanced visible light photocatalytic activity using multi-dimensional components of carbon quantum dots@3D daisy-like In2S3/single-wall carbon nanotubes

Cited by 146 publications

References 82 publications

Fabrication of 3D Hierarchical Byttneria Aspera‐Like Ni@Graphitic Carbon Yolk–Shell Microspheres as Bifunctional Catalysts for Ultraefficient Oxidation/Reduction of Organic Contaminants

Fabrication of 3D Hierarchical Byttneria Aspera‐Like Ni@Graphitic Carbon Yolk–Shell Microspheres as Bifunctional Catalysts for Ultraefficient Oxidation/Reduction of Organic Contaminants

Au‐Mediated Composite In₂S₃–Au–BiVO₄ with Enhanced Photocatalytic Activity for Organic Pollutant Degradation

Facile Synthesis of Indium Sulfide/Flexible Electrospun Carbon Nanofiber for Enhanced Photocatalytic Efficiency and Its Application

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Fast electron transfer and enhanced visible light photocatalytic activity using multi-dimensional components of carbon quantum dots@3D daisy-like In2S3/single-wall carbon nanotubes

Cited by 146 publications

References 82 publications

Fabrication of 3D Hierarchical Byttneria Aspera‐Like Ni@Graphitic Carbon Yolk–Shell Microspheres as Bifunctional Catalysts for Ultraefficient Oxidation/Reduction of Organic Contaminants

Fabrication of 3D Hierarchical Byttneria Aspera‐Like Ni@Graphitic Carbon Yolk–Shell Microspheres as Bifunctional Catalysts for Ultraefficient Oxidation/Reduction of Organic Contaminants

Au‐Mediated Composite In2S3–Au–BiVO4 with Enhanced Photocatalytic Activity for Organic Pollutant Degradation

Facile Synthesis of Indium Sulfide/Flexible Electrospun Carbon Nanofiber for Enhanced Photocatalytic Efficiency and Its Application

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Au‐Mediated Composite In₂S₃–Au–BiVO₄ with Enhanced Photocatalytic Activity for Organic Pollutant Degradation