Photoreduction of Cr(VI) in water using Bi2O3–ZrO2 nanocomposite under visible light irradiation

Kumaravel, Vignesh; Priyanka, R.; Rajarajan, Muttukrishnan; Suganthi, A.

doi:10.1016/j.mseb.2012.10.035

Cited by 83 publications

(25 citation statements)

References 45 publications

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“…And Xu et al demonstrated a hierarchical micro/nano-architecture ␤-Bi 2 O 3 /Bi 2 MoO 6 microspheres synthesized by a facile template-free solvothermal method, and the photocatalytic activity was substantially improved compared to neat ␤-Bi 2 O 3 and Bi 2 MoO 6 [24]. Similarly, ␤-Bi 2 O 3 /BiOCl [25], ␤-Bi 2 O 3 /Bi 2 WO 6 [26], ␤-Bi 2 O 3 /ZrO 2 [27], and ␤-Bi 2 O 3 /ZnO [28] exhibited substantially enhanced photocatalytic activity due to the efficient separation of photoexcited electrons and holes.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of flower-like heterostructured β-Bi2O3/Bi2O2CO3 microspheres using Bi2O2CO3 self-sacrifice precursor and its visible-light-induced photocatalytic degradation of o-phenylphenol

Xiao

et al. 2015

Applied Catalysis B: Environmental

213

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Section: Introductionmentioning

confidence: 99%

Synthesis of flower-like heterostructured β-Bi2O3/Bi2O2CO3 microspheres using Bi2O2CO3 self-sacrifice precursor and its visible-light-induced photocatalytic degradation of o-phenylphenol

Xiao

et al. 2015

Applied Catalysis B: Environmental

213

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“…Therefore, lower the PL intensity for Co-In-ZnO reduces the recombination rate of photoinduced electrons and holes on the surface of ZnO. Thus, leading to enhanced photocatalytic activity [24,25]. TEM.…”

Section: Pl Spectramentioning

confidence: 99%

Visible Light Assisted Photocatalytic Activity of Co-doped ZnO, In-Doped ZnO and (Co, In) co- doped ZnO Nanoparticles

Malathy¹,

Tjprc²

2018

IJNA

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“…A few attempts have be made to study the photocatalytic activity of other semiconductors, such as La 2 Ti 2 O 7 (Yang et al 2011) and Bi 2 O 3 -ZrO 2 (Vignesh et al 2013), for the reduction of Cr(VI) in aqueous solution. La 2 Ti 2 O 7 was found to be a highly active photocatalyst for the reduction of 30 mg L À1 Cr(VI) in aqueous suspension under UV irradiation.…”

Section: Photocatalytic Reduction Of Cr(vi) With Zno and Other Semicomentioning

confidence: 99%

“…Additionally, it was found that the photocatalytic activity of La 2 Ti 2 O 7 remained almost unchanged after nine successive cycles (Yang et al 2011). Vignesh et al (2013) evaluated the activity of the mixed oxide Bi 2 O 3 -ZrO 2 for Cr(VI) removal under UV light irradiation. A 92.3 % removal percentage of Cr (VI) was achieved with a Bi 2 O 3 -ZrO 2 loading of 1.25 g L À1 , an initial Cr (VI) concentration of 5 mg L À1 , pH 2, and an irradiation time of 180 min.…”

Section: Photocatalytic Reduction Of Cr(vi) With Zno and Other Semicomentioning

confidence: 99%

Application of Semiconductor Photocatalytic Materials for the Removal of Inorganic Compounds from Wastewater

Guzmán-Mar

Villanueva-Rodríguez

Hinojosa‐Reyes

2014

Photocatalytic Semiconductors

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A wide range of inorganic pollutants are sensitive to photochemical transformation on the surface of catalysts. The major inorganic wastewater pollutants treated by this process include cyanide-containing waste and heavy metal pollutants, such as arsenic species and hexavalent chromium. Heterogeneous photocatalysis has been explored as an alternative technology for inorganic ion removal offering satisfactory results. The photocatalytic removal of inorganic pollutants usually has two types of mechanisms: oxidation and reduction.In this chapter, the photocatalytic activities of various semiconductor materials for inorganic ion removal have been compiled and reviewed. The key advancements on the preparation of semiconductor materials tested for the removal of inorganic ions at low-level concentrations from natural water evaluating the matrix effects are also highlighted and discussed. In particular, the chapter focuses on enhancing the degradation efficiency; maximizing the use of illumination wavelength in the visible light region to develop solar active photocatalysts; the ease of separation from treated water, which is always of great interest; and improving the retrieval and reuse of semiconductors.

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Photoreduction of Cr(VI) in water using Bi2O3–ZrO2 nanocomposite under visible light irradiation

Cited by 83 publications

References 45 publications

Synthesis of flower-like heterostructured β-Bi2O3/Bi2O2CO3 microspheres using Bi2O2CO3 self-sacrifice precursor and its visible-light-induced photocatalytic degradation of o-phenylphenol

Synthesis of flower-like heterostructured β-Bi2O3/Bi2O2CO3 microspheres using Bi2O2CO3 self-sacrifice precursor and its visible-light-induced photocatalytic degradation of o-phenylphenol

Visible Light Assisted Photocatalytic Activity of Co-doped ZnO, In-Doped ZnO and (Co, In) co- doped ZnO Nanoparticles

Application of Semiconductor Photocatalytic Materials for the Removal of Inorganic Compounds from Wastewater

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