BiOI-sensitized TiO2 in phenol degradation: A novel efficient semiconductor sensitizer

Li, Yongyu; Wang, Jianshe; Liu, Bin; Dang, Liyun; Yao, Hong-Chang; Li, Zhongjun

doi:10.1016/j.cplett.2011.04.019

Cited by 69 publications

(22 citation statements)

References 22 publications

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“…In addition, the radical quenching experiments were also performed over Bi 24 O 31 Cl 5 Br 5 to investigate the effect of various radical scavengers on the photodegradation of RhB under visible light irradiation. To do so, isopropanol (IPA) [29], benzoquinone (BQ) [30,31] and triethanolamine (TEOA) [8] were used as the scavengers of hydroxyl radicals (•OH), superoxide radicals (•O 2 À ) and active holes (h þ ), respectively. As shown in Fig.…”

Section: Photocatalytic Mechanismmentioning

confidence: 99%

Solvothermal synthesis of Bi24O31ClxBr10−x solid solutions with enhanced visible light photocatalytic property

Liu

Niu

Feng

et al. 2015

Ceramics International

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Section: Photocatalytic Mechanismmentioning

confidence: 99%

Solvothermal synthesis of Bi24O31ClxBr10−x solid solutions with enhanced visible light photocatalytic property

Liu

Niu

Feng

et al. 2015

Ceramics International

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“…Therefore, incorporating TiO2 with BiOI may provide the material with better photocatalytic performance. Previous studies have shown that photocatalytic degradation of dyes over BiOI/TiO2 composite is superior to those over TiO2 and BiOI individually [11,12]. The reverse microemulsions protocol for BiOI composite synthesis which mainly focuses on the use of surfactants was reported [13].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Phenol over Highly Visible-Light Active BiOI/TiO2 Nanocomposite Photocatalyst

Boonprakob¹,

Chomkitichai²,

Ketwaraporn³

et al. 2017

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Abstract. BiOI/TiO2 nanocomposites were successfully prepared by the two-step method, co-precipitation/solvothermal method. The amount of BiOI in the composites were varied as 0, 5.0, 7.5, 10.0 and 12.5 mol%. XRD results exhibited sharp and narrow diffraction peaks of both BiOI and TiO2 in all composite samples. Morphologies of as-prepared samples consisted of spherical shapes of TiO2 and nanosheets of BiOI. Diffuse Reflectance UV-visible (DR-UV-vis) spectra of composites drastically shifted into the visible range and the reduced band gap energies were observed. The composites obviously showed an enhanced phenol degradation of ca. 6 times higher than that of pure BiOI, pure TiO2 and Degussa P25. The maximum photocatalytic activity of ca. 68% was found for 10.0 mol% BiOI/TiO2 nanocomposite because of its increased visible light harvesting ability and its efficient electron-hole separation efficiency as observed from DR-UV-vis and photoluminescence spectra results.

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“…In this paper, the shape and size of BiOI are precisely controlled by a simple experimental procedure. In previous work, experimental results from Wang's group suggest that the morphology of BiOI was simple particles, and Li's team shows irregular blocky structure . However, in this paper, the orderly growth of BiOI on the TiO 2 nanorod arrays (TNR) array was successfully achieved.…”

Section: Introductionmentioning

confidence: 76%

Enhancement of photocatalytic and photoelectrochemical properties of BiOI nanosheets and silver quantum dots co‐modified TiO₂ nanorod arrays

et al. 2019

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In this study, TiO2 nanorod arrays (TNR), Ag quantum dots (QDs) sensitized with TNR TiO2/Ag, bismuth oxyhalide (BiOI) nanosheets, and Ag QDs co‐modified with TNR and TiO2/BiOI/Ag (TBA) were prepared by a stepwise process. The morphological, structural, compositional, optical, photocatalytic (PC), and photoelectrochemical (PEC) properties of the samples were investigated. The TBA‐2 sample exhibited the highest photocurrent density (281.8 μA/cm2) and photodegradation efficiency (93.3%), with values 9.7 times and 2.25 times higher than those for TNR, respectively. The improvement in sample performance can be attributed to the formation of a heterojunction between BiOI and TiO2, thereby enhancing the absorption of visible light and improving the charge separation efficiency; Ag QDs limit interfacial electron‐hole pair recombination. The experimental results show that TBA can effectively promote light‐induced carrier transport and visible light absorption, while inhibiting the recombination rate of the electron‐hole pairs, PEC, and PC.

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BiOI-sensitized TiO2 in phenol degradation: A novel efficient semiconductor sensitizer

Cited by 69 publications

References 22 publications

Solvothermal synthesis of Bi24O31ClxBr10−x solid solutions with enhanced visible light photocatalytic property

Solvothermal synthesis of Bi24O31ClxBr10−x solid solutions with enhanced visible light photocatalytic property

Photocatalytic Degradation of Phenol over Highly Visible-Light Active BiOI/TiO2 Nanocomposite Photocatalyst

Enhancement of photocatalytic and photoelectrochemical properties of BiOI nanosheets and silver quantum dots co‐modified TiO₂ nanorod arrays

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BiOI-sensitized TiO2 in phenol degradation: A novel efficient semiconductor sensitizer

Cited by 69 publications

References 22 publications

Solvothermal synthesis of Bi24O31ClxBr10−x solid solutions with enhanced visible light photocatalytic property

Solvothermal synthesis of Bi24O31ClxBr10−x solid solutions with enhanced visible light photocatalytic property

Photocatalytic Degradation of Phenol over Highly Visible-Light Active BiOI/TiO2 Nanocomposite Photocatalyst

Enhancement of photocatalytic and photoelectrochemical properties of BiOI nanosheets and silver quantum dots co‐modified TiO2 nanorod arrays

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Enhancement of photocatalytic and photoelectrochemical properties of BiOI nanosheets and silver quantum dots co‐modified TiO₂ nanorod arrays