One dimensional CdS nanowire@TiO2 nanoparticles core-shell as high performance photocatalyst for fast degradation of dye pollutants under visible and sunlight irradiation

Arabzadeh, Abbas; Salimi, Abdollah

doi:10.1016/j.jcis.2016.06.036

Cited by 75 publications

(14 citation statements)

References 61 publications

(62 reference statements)

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“…Arabzadeh et al [267] combined a single-dimensional cadmium sulfide (CdS) nanowire with a TiO 2 nanoparticle by a hot solvent method to form a catalyst for a core-shell structure. In photocatalysis experiments, cadmium sulfide/titanium dioxide (CdS/TiO 2 ) photocatalysts can completely decompose methyl orange, methylene blue, and rhodamine B, and the photocatalytic decomposition time is only 2-3 min.…”

Section: Semiconductor Compoundmentioning

confidence: 99%

Recent Advances and Applications of Semiconductor Photocatalytic Technology

et al. 2019

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Along with the development of industry and the improvement of people’s living standards, peoples’ demand on resources has greatly increased, causing energy crises and environmental pollution. In recent years, photocatalytic technology has shown great potential as a low-cost, environmentally-friendly, and sustainable technology, and it has become a hot research topic. However, current photocatalytic technology cannot meet industrial requirements. The biggest challenge in the industrialization of photocatalyst technology is the development of an ideal photocatalyst, which should possess four features, including a high photocatalytic efficiency, a large specific surface area, a full utilization of sunlight, and recyclability. In this review, starting from the photocatalytic reaction mechanism and the preparation of the photocatalyst, we review the classification of current photocatalysts and the methods for improving photocatalytic performance; we also further discuss the potential industrial usage of photocatalytic technology. This review also aims to provide basic and comprehensive information on the industrialization of photocatalysis technology.

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Section: Semiconductor Compoundmentioning

confidence: 99%

Recent Advances and Applications of Semiconductor Photocatalytic Technology

et al. 2019

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“…For decades, photocatalyst has always being exploited as a promising tool to alleviate increasing environment crisis. Including TiO 2 , ZnO, CdS, Fe 2 O 3 , Bi 2 O 3 and AgX (X ¼ Cl, Br, I) were studied by researchers as semiconductor photocatalyst [1][2][3][4][5][6]. AgX that is a photosensitive material has always caught many eyes in photocatalytic field [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Construction and characterization of Ag/AgI/Ag₃BiO₃ heterojunction and its photocatalytic mechanism

Song

Peng

et al. 2019

Journal of Experimental Nanoscience

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In this work, a new ternary Ag/AgI/Ag 3 BiO 3 photocatalyst was fabricated by an in-situ precipitation method, where Ag 0 nanoparticles, serving as a mediator, implanted on the surface of glossy AgI, quantum efficiency being improved attributed to the surface plasmon resonance (SPR) effect. The composites showed superior photocatalytic performance to methylene blue (MB) degradation under visible illumination (k > 420 nm). The K obs values of Ag/AgI/Ag 3 BiO 3-3 were 7.4 and 3.6 times compared with that of pristine Ag 3 BiO 3 and AgI, respectively. Based on the series of experimental results, a Z-scheme heterojunction has formed in preparations. The electron-hole pairs maintained a transferable cycle, which efficiently inhibited the recombination of electronhole pairs. According to active species analysis, holes were determined the predominant work-function in photocatalytic degradation system. The feasible mechanism has proposed to illustrate the photocatalytic decomposition of MB on Ag/AgI/Ag 3 BiO 3. Our work has important implication for the management and practical application of catalysts.

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“…In the last decade, photocatalysts have attracted enormous attention due to their various usages such as photocatalytic degradation of pollutants and in sensors, solar cells and optoelectronic devices. Several kinds of photocatalyst nanostructures, such as nanoparticle, core–shell, yolk–shell, nanofiber and hollow fiber, are good choices for such applications. Particularly, due to the high aspect ratios of nanofibers, their composites are expected to show good photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Electrospinning preparation of NiO/ZnO composite nanofibers for photodegradation of binary mixture of rhodamine B and methylene blue in aqueous solution: Central composite optimization

Sabzehmeidani

Karimi

Ghaedi

2018

Applied Organom Chemis

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One-dimensional nanofiber of p-type NiO/n-type ZnO heterojunctions with various molar ratios of Ni to Zn at different calcination temperatures were successfully synthesized using the electrospinning method, and they were fully characterized. The photocatalysts thus obtained were applied in aqueous solutions for rhodamine B (RDB) and methylene blue (MB) degradation. The p-n heterojunctions built among the cubic structure NiO and hexagonal structure ZnO in the composite nanofiber are responsible for generation of electrons and holes and subsequently superoxide and hydroxyl radical production by carriers which lead to degradation of the dyes in solution. The composite nanofibers (ZnNi1) calcined at 550°C for 3 h showed the highest photocatalytic activity for degradation of the dyes in aqueous solution. The optimum values were found to be 180 min, 7.0, 1 g l −1 and 3.0 and 3.0 mg l −1 for irradiation time, pH, photocatalyst dosage and initial concentration of RDB and MB, respectively. For these optimum conditions, the photocatalytic degradation of RDB and MB was found to be 99.37 and 98.44%, respectively. The maximum photodegradation of RDB and MB using ZnNi1 was 59.41 and 65.43%, respectively. First-order kinetics based on the Langmuir-Hinshelwood model successfully fitted the experimental data.

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One dimensional CdS nanowire@TiO2 nanoparticles core-shell as high performance photocatalyst for fast degradation of dye pollutants under visible and sunlight irradiation

Cited by 75 publications

References 61 publications

Recent Advances and Applications of Semiconductor Photocatalytic Technology

Recent Advances and Applications of Semiconductor Photocatalytic Technology

Construction and characterization of Ag/AgI/Ag₃BiO₃ heterojunction and its photocatalytic mechanism

Electrospinning preparation of NiO/ZnO composite nanofibers for photodegradation of binary mixture of rhodamine B and methylene blue in aqueous solution: Central composite optimization

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One dimensional CdS nanowire@TiO2 nanoparticles core-shell as high performance photocatalyst for fast degradation of dye pollutants under visible and sunlight irradiation

Cited by 75 publications

References 61 publications

Recent Advances and Applications of Semiconductor Photocatalytic Technology

Recent Advances and Applications of Semiconductor Photocatalytic Technology

Construction and characterization of Ag/AgI/Ag3BiO3 heterojunction and its photocatalytic mechanism

Electrospinning preparation of NiO/ZnO composite nanofibers for photodegradation of binary mixture of rhodamine B and methylene blue in aqueous solution: Central composite optimization

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Construction and characterization of Ag/AgI/Ag₃BiO₃ heterojunction and its photocatalytic mechanism