Visible light photocatalytic activity of novel MWCNT-doped ZnO electrospun nanofibers

Samadi, Morasae; Shivaee, Hossein Asghari; Zanetti, Marco; Pourjavadi, Ali; Moshfegh, A.Z.

doi:10.1016/j.molcata.2012.03.019

Cited by 181 publications

(88 citation statements)

References 59 publications

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“…Various types of ZnO platforms that used as a biosensor basis have been developed [40,41,43,57,63,64,69,73,89,90,92,[94][95][96][97][98][99]. The growth-controlled synthesis of ZnO nanorods in the aqueous phase has been investigated by Balaguera-Gelves et al [40].…”

Section: Novel Trends In Zno Biosensor Platformsmentioning

confidence: 99%

See 1 more Smart Citation

Optical biosensors based on ZnO nanostructures: advantages and perspectives. A review

Tereshchenko

Bechelany

Viter

et al. 2016

Sensors and Actuators B: Chemical

261

193

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Section: Novel Trends In Zno Biosensor Platformsmentioning

confidence: 99%

“…Nowadays, new approaches are targeted to combine ZnO nanostructures with carbon based nanomaterials such as graphene [63], carbon nanotubes [64], etc. in order to obtain new improved of electrical and optical properties, which can be used for biosensor applications.…”

Section: Novel Trends In Zno Biosensor Platformsmentioning

confidence: 99%

Optical biosensors based on ZnO nanostructures: advantages and perspectives. A review

Tereshchenko

Bechelany

Viter

et al. 2016

Sensors and Actuators B: Chemical

261

193

View full text Add to dashboard Cite

“…Because of their unique physical and chemical properties, carbon nanotubes (CNTs) are considered to be excellent candidates for many potential applications such as nanocomposite materials, nanoelectronics, catalysis and sensors [1][2][3][4][5][6][7][8][9][10]. Due to their great hardness and toughness, multiwall CNTs (MWCNTs) keep their morphology and structure even at high nanoparticle loadings [11].…”

Section: Introductionmentioning

confidence: 99%

The effect of concentration ratio and type of functional group on synthesis of CNT–ZnO hybrid nanomaterial by an in situ sol–gel process

Largani

Pasha

2016

Int Nano Lett

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In this research, MWCNT-ZnO hybrid nanomaterials were synthesized by a simple sol-gel process using Zn(CH 3 COO) 2 Á2H 2 O and functionalized MWCNT with carboxyl(COOH) and hydroxyl(OH) groups. Three different mass ratios of MWCNT:ZnO = 3:1, 1:1 and 1:3 were examined. The prepared nanomaterials were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and Fourier transform infrared spectroscopy (FTIR). Successful growth of MWCNT-ZnO hybrids for both COOH and OH functional groups and all the three mass ratios were obtained. The ZnO nanoparticles attached on the surfaces of CNTs have rather spherical shapes and hexagonal crystal structure. By increasing the concentration of ZnO, the number and average size of ZnO nanoparticles decorated the body of CNTs in hybrid structures increase. By increasing the ZnO precursor, the distribution of ZnO nanoparticles that appeared on the surface of CNTs becomes more uniform. The SEM observation beside EDX analysis revealed that at the same concentration ratio the amount of ZnO loading on the surface of MWCNT-COOH is more than MWCNT-OH. Moreover, the average size of ZnO nanoparticles attached on the surface of COOH functionalized CNTs is relatively smaller than that of OH functionalized ones.

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“…Figure 5D shows the proposed photocatalytic mechanism. [66] Under visible light irriadiation, MWCNT absorbs visible irradiation and transfers the photogenerated electron into the conduction band of ZnO. The organic dye was degraded on the ZnO surface, and the positively charged CNTs removed an electron from the valence band of ZnO and left a hole.…”

Section: Coupling Carbon Materialsmentioning

confidence: 99%

Enhanced Photocatalytic Performance of ZnO through Coupling with Carbon Materials

Qi¹,

Qi²,

Xie³

2017

General Chemistry

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Photocatalytic degradation of organic pollutants is an effective way to overcome environmental pollution. During the past few years, carbon materials have demonstrated great potential to improve photocatalytic performance of ZnO nanomaterials. This review will comment on recent developments of carbon materials (including fullerene, carbon nanotube, and graphene) coupling to improve photocatalytic performance of ZnO for photodegradatation of organic pollutants. The effects of carbon materials on enhancing photocatalytic performance of ZnO include enhancing structure stability, increasing amounts of active sites of pollutant adsorption, boosting electron acceptor formation and transport, enhancing photosensitization, narrowing band gap, etc. Moreover, basic mechanisms how carbon materials enhance photocatalytic activity of ZnO materials are discussed according to the interaction between ZnO and carbon materials. Finally, concluding remarks and current challenges are highlighted with perspectives for future developments of ZnO-based carbon photocatalysts. This review aims at recent research advances on ZnO-based carbon photocatalysts developed for photocatalysis of organic contaminant degradation.

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Visible light photocatalytic activity of novel MWCNT-doped ZnO electrospun nanofibers

Cited by 181 publications

References 59 publications

Optical biosensors based on ZnO nanostructures: advantages and perspectives. A review

Optical biosensors based on ZnO nanostructures: advantages and perspectives. A review

The effect of concentration ratio and type of functional group on synthesis of CNT–ZnO hybrid nanomaterial by an in situ sol–gel process

Enhanced Photocatalytic Performance of ZnO through Coupling with Carbon Materials

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