Development of a highly efficient 1D/0D TiO2 nanotube/n-CdTe photoanode: single-step attachment, coverage, and size control by a solvothermal approach

Sarker, Swagotom; Mukherjee, Bratindranath; Crone, Eric; Subramanian, Vaidyanathan

doi:10.1039/c3ta15410f

Cited by 14 publications

(11 citation statements)

References 27 publications

(18 reference statements)

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“… 6 – 8 To achieve efficient solar cells of this kind, the interplay between optical absorption, high interfacial surface area and good electrical contact between TiO 2 and the chromophores has to be optimized. As well as organic dyes and perovskites, significant promise lies also in the utilization of quantum dots or thin layers of chalcogenides such as CdS, 9 CdSe, 10 CdTe, 11 CIGS, 12 kesterites, 13 and Sb 2 S 3 14 among others due to their optimal light absorption, and high stability under UV light and ambient conditions.…”

Section: Introductionmentioning

confidence: 99%

A 1D conical nanotubular TiO₂/CdS heterostructure with superior photon-to-electron conversion

et al. 2018

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Section: Introductionmentioning

confidence: 99%

A 1D conical nanotubular TiO₂/CdS heterostructure with superior photon-to-electron conversion

et al. 2018

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“…Under solvothermal conditions, a supercritical fluid is formed, which can significantly increase the solubility of most solid precursors and allow the self‐assembly of nanostructure as well as the formation of a wide range of inorganic materials. Because of their improved physical and chemical properties compared to single‐component 1D TiO 2 nanostructures, hybrid 1D TiO 2 nanostructures are of great importance to broaden their applications in materials science …”

Section: Introductionmentioning

confidence: 99%

Efficient and Robust Cu/TiO₂ Nanorod Photocatalysts for Simultaneous Removal of Cr(VI) and Methylene Blue under Solar Light

Guan

Zhou

Wen

et al. 2018

J Chinese Chemical Soc

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Because of its large bandgap, TiO 2 can function only under UV light. TiO 2 surface modification with noble metal nanoparticles can extend the light absorption from UV to visible light region and enhance the photocatalytic quantum yield. In this work, TiO 2 nanorods (Cu/TiO 2 ) modified by copper nanoparticles were prepared by a one-step solvothermal method at low cost. The resultant Cu/TiO 2 nanorods show excellent synergistic effect in the oxidation of methylene blue (MB) and the reduction of aqueous Cr(VI) under solar light irradiation. Mechanistic investigation suggests that the Cr(VI) species could effectively scavenge the electrons from MB in the presence of the asprepared photocatalyst, leading to the simultaneous removal of both pollutants. Being economically viable, environmentally sustainable, and highly efficient, the proposed photocatalyst holds promise for technologies involving simultaneous organic degradation and heavy metal removal in wastewater treatment.

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“…When benzene, toluene, formaldehyde, bacteria, viruses and other pollutants adsorb on the surface of TiO2, they are going to combine with free electrons or holes, have an oxidation reduction reaction, and be decomposed into carbon dioxide, water, etc. Therefore, TiO2 is one of the photocatalysts with huge potentials and has been widely appliedto air purification, sweage treatment, water spitting, reduction of CO2 andsolar cells [2][3][4][5] With the continuous decrease of TiO2 particle size, the specific surface area of TiO2 increases continuously, and its photocatalytic activity also increases accordingly [6]. Therefore, all TiO2 used for photocatalysis is nano TiO2.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Porous and Recyclable Pva-Tio2hybrid Hydrogel

Mingxin¹,

Li²

2018

ECIJ

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Nano TiO2, one of the most effective photocatalysts, has extensive usein fields such as air purification, sweage treatment, water spitting, reduction of CO2, and solar cells. Nowadays, the most promising method to recycle nano TiO2during the photocatalysis is to immobilize TiO2onto matrix, such as polyvinyl alcohol (PVA). However, due to the slow water permeability of PVA after cross-linking, the pollutants could not contact with nano TiO2photocatalyst in time. To overcome this problem, we dispersed calcium carbonate particles into a PVA-TiO2 mixture and then filmed the glass. PVA-TiO2-CaCO3 films were obtained by drying. Through thermal treatment, we obtained the cross-linked PVA-TiO2-CaCO3 films. Finally, the calcium carbonate in the film was dissolved by hydrochloric acid, and the porous PVA-TiO2 composite photocatalyst was obtained. The results show the addition of CaCO3 has no obvious effect on PVA cross-linking and that a large number of cavities have been generated on the surface and inside of porous PVA-TiO2 hybrid hydrogel film. The size of the holes is about 5-15μm, which is consistent with that of CaCO3.The photocatalytic rate constant of porous PVA-TiO2 hybrid hydrogel film is 2.49 times higher than that of nonporous PVA-TiO2 hybrid hydrogel film.

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Development of a highly efficient 1D/0D TiO2 nanotube/n-CdTe photoanode: single-step attachment, coverage, and size control by a solvothermal approach

Cited by 14 publications

References 27 publications

A 1D conical nanotubular TiO₂/CdS heterostructure with superior photon-to-electron conversion

A 1D conical nanotubular TiO₂/CdS heterostructure with superior photon-to-electron conversion

Efficient and Robust Cu/TiO₂ Nanorod Photocatalysts for Simultaneous Removal of Cr(VI) and Methylene Blue under Solar Light

Preparation of Porous and Recyclable Pva-Tio2hybrid Hydrogel

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Development of a highly efficient 1D/0D TiO2 nanotube/n-CdTe photoanode: single-step attachment, coverage, and size control by a solvothermal approach

Cited by 14 publications

References 27 publications

A 1D conical nanotubular TiO2/CdS heterostructure with superior photon-to-electron conversion

A 1D conical nanotubular TiO2/CdS heterostructure with superior photon-to-electron conversion

Efficient and Robust Cu/TiO2 Nanorod Photocatalysts for Simultaneous Removal of Cr(VI) and Methylene Blue under Solar Light

Preparation of Porous and Recyclable Pva-Tio2hybrid Hydrogel

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A 1D conical nanotubular TiO₂/CdS heterostructure with superior photon-to-electron conversion

A 1D conical nanotubular TiO₂/CdS heterostructure with superior photon-to-electron conversion

Efficient and Robust Cu/TiO₂ Nanorod Photocatalysts for Simultaneous Removal of Cr(VI) and Methylene Blue under Solar Light