Synthesis and characterization of TiO2/CdS core–shell nanorod arrays and their photoelectrochemical property

Cao, Changlin; Hu, Chenguo; Shen, Weidong; Wang, Shuxia; Tian, Yuqing; Wang, Xue

doi:10.1016/j.jallcom.2012.01.126

Cited by 69 publications

(20 citation statements)

References 38 publications

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“…This value is about 3.5 times of that of the pure TiO 2 NRAs. It is well known that higher photocurrents indicate a higher efficiency in the separation of the photo-generated electrons and holes and thus suggests better photocatalytic activity [33,34].…”

Section: Photoelectrochemical Propertiesmentioning

confidence: 99%

Enhanced photocatalytic and photoelectrochemical properties of TiO2 nanorod arrays sensitized with CdS nanoplates

Tao

Gong

Yao

et al. 2016

Ceramics International

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Section: Photoelectrochemical Propertiesmentioning

confidence: 99%

Enhanced photocatalytic and photoelectrochemical properties of TiO2 nanorod arrays sensitized with CdS nanoplates

Tao

Gong

Yao

et al. 2016

Ceramics International

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“…3(a). Obviously, photo-current density of CdS NWs/GF electrode was more than five times that of the CdS/Gr electrode and several times larger than that of the CdS nanoparticles (NPs)-TiO 2 electrodes reported in [3]. It is proposed that such high PEC response mainly might be attributed to the nature of 3D GF, which not only improves the light absorption to generate carriers, but also provides a direct and effective pathway for charge transport in the interconnected network.…”

Section: Photo-electrochemical Analysismentioning

confidence: 79%

“…As a typical direct band gap semiconductor, CdS possesses a narrower band gap of 2.42eV than that of TiO 2 (3.2 eV) [3] and ZnO (3.7eV) [4], which facilitates the utilization of visible light and renders it a competitive candidate as a material of photo-anode. Disadvantageously, the rapid recombination of the photogenerated electron-hole pairs is a crucial barrier, hampering the PEC performance of CdS [5].…”

Section: A N U S C R I P Tmentioning

confidence: 99%

CdS nanowire-modified 3D graphene foam for high-performance photo-electrochemical anode

Nong

Liu

Wei

et al. 2016

Journal of Alloys and Compounds

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“…Numerous attempts have been made to expand the TiO 2 photoanode absorption spectrum to longer wavelengths: through doping TiO 2 with various metals and anions, use a dye-sensitizer molecule [7] and also morphology modifications of nano-scaled TiO 2 , namely spheres, wires, rods and tubes [8,9]. Significant experimental results are also observed by a surface passivation layer of TiO 2 with various metal oxide [10,11]. Surface passivation layers electrode is a type of junction electrode, which comprises two or more layers of semiconductors.…”

Section: Introductionmentioning

confidence: 99%

TiO2 DOPED WITH Fe2O3 FOR PHOTOELECTROCHEMICAL WATER SPLITTING ELECTRODE: EXPERIMENTAL AND DENSITY FUNCTIONAL THEORY STUDY

Arifin¹,

Kadir

Minggu³

et al. 2016

MJAS

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Various modifications of the titanium dioxide thin films have been done in fulfilling the photoelectrode requirements for photoelectrochemical water splitting reaction. In this study, surface passivation of TiO 2 by hematite-Fe 2 O 3 was reported. Electrodeposition technique was used to deposit the Fe 2 O 3 onto the TiO 2 /FTO film with variation of time. X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and UV-Vis spectroscopic analyses were used to characterize the electrode. Plane-wave-based pseudopotential density functional theory (DFT) calculations were used to analyze the electronic structure and charge potential at the surface of the electrode. The photocurrent measurement showed that current density of TiO 2 /Fe 2 O 3 electrode was higher than the TiO 2 /FTO under the same illumination intensity of 100 mWcm -2 . The highest current density was produced by 5 minutes electrodeposition of Fe 2 O 3 , which also shifted the absorption to visible region at the threshold wavelength of 518 nm.Keywords : titanium dioxide, iron(III) oxide, passivation layer, band gap Abstrak Pelbagai pengubahsuaian titanium dioksida filem nipis telah dilakukan untuk memenuhi keperluan fotoelektrod bagi tindak balas fotoelektrokimia pembelahan molekul air. Dalam kajian ini, dilaporkan pempasifan permukaan TiO 2 dengan bijih besi-Fe 2 O 3 . Teknik pengelektroenapan digunakan untuk mendepositkan Fe 2 O 3 ke TiO 2 /FTO filem dengan pelbagai masa pengelektroenapan. Analisis XRD, SEM dan UV-Vis spektroskopi telah digunakan untuk mencirikan elektrod. pengiraan teori fungsi ketumpatan (DFT) berasaskan planar gelombang pseudopotential telah digunakan untuk menganalisis struktur elektronik dan potensi caj di permukaan elektrod. Pengukuran arusfoto menunjukkan bahawa ketumpatan arus TiO 2 /Fe 2 O 3 elektrod adalah lebih tinggi daripada TiO 2 /FTO bawah keamatan pencahayaan yang sama, 100 mWcm -2 . Ketumpatan semasa tertinggi dihasilkan oleh 5 minit pengelektroenapan Fe 2 O 3 , yang mana penyerapan beralih ke kawasan yang boleh dilihat pada panjang gelombang ambang 518 nm.Kata kunci: titanium dioksida, ferum (III) oksida, lapisan pasif, sela jalur

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Synthesis and characterization of TiO2/CdS core–shell nanorod arrays and their photoelectrochemical property

Cited by 69 publications

References 38 publications

Enhanced photocatalytic and photoelectrochemical properties of TiO2 nanorod arrays sensitized with CdS nanoplates

Enhanced photocatalytic and photoelectrochemical properties of TiO2 nanorod arrays sensitized with CdS nanoplates

CdS nanowire-modified 3D graphene foam for high-performance photo-electrochemical anode

TiO2 DOPED WITH Fe2O3 FOR PHOTOELECTROCHEMICAL WATER SPLITTING ELECTRODE: EXPERIMENTAL AND DENSITY FUNCTIONAL THEORY STUDY

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