Feasibility of Macroporous CeO2 Photocatalysts for Removal of Lead Ions from Water

Removal of lead ions from water was conducted by a coupling approach of adsorption and photoelectrodeposition over a macroporous CeO2 photocatalyst loaded with ZnO. The photocatalyst was prepared by the hard template method and the impregnation method. The various size of silica spheres (0.05-0.4 µm) were used as a template for the photocatalyst, and the highest BET surface area (73.8 m2/g) was given in the sample prepared with the smallest silica sphere (0.05 µm). In the removal of lead ions, the porous sample showed a large amount of removal of lead ions. In addition, the ZnO loaded catalysts showed a larger amount of removal for lead ions than an unloaded catalyst under the UV light irradiation. In the reaction, since zinc ions were simultaneously dissolved to the solution, it was suggested that this reaction was the ion-exchange reaction between lead ions and zinc ions and was promoted by the UV light irradiation. Copyright © 2018 BCREC Group. All rights reservedReceived: 21st March 2017; Revised: 31st November 2017; Accepted: 8th December 2017; Available online: 11st June 2018; Published regularly: 1st August 2018How to Cite: Nozaki, T., Shoji, R., Kobayashi, Y., Sato, K. (2018). Feasibility of Macroporous CeO2 Photocatalysts for Removal of Lead Ions from Water. Bulletin of Chemical Reaction Engineering & Catalysis, 13 (2): 256-261 (doi:10.9767/bcrec.13.2.1020.256-261)

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Synthesis of Hybrid Cu-Doped TiO2 Photocatalyst for Dye Removal

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.797.84 ◽

2019 ◽

Vol 797 ◽

pp. 84-91 ◽

Cited By ~ 1

Author(s):

Ying Pei Lim ◽

Ying Chin Lim

Keyword(s):

Incubation Time ◽

Incubation Temperature ◽

Dye Degradation ◽

Uv Light ◽

Light Irradiation ◽

Impregnation Method ◽

Wet Impregnation ◽

Uv Light Irradiation ◽

Photocatalytic Activities ◽

Wet Impregnation Method

Titanium dioxide (TiO2) photocatalyst is one of the promising semiconductors used for the degradation of commercial dyes. However, it has to be doped with other metals to increase its efficiency, reactivity and stability. This study was carried out to synthesize hybrid Cu-doped TiO2 using wet impregnation method by varying the loading of copper precursor (0.3-1.0 wt%), incubation temperature (50-90°C) and incubation time (1-24 h). The synthesized hybrid Cu-doped TiO2 was characterized using XRD, EDX, FESEM and BET to obtain the structural, elemental, and surface morphological information. The photocatalytic activities of the synthesized Cu-doped TiO2 were investigated for the degradation of methyl orange (MO) under UV-light irradiation. The results revealed that the optimum Cu loading was at 0.5wt% Cu with incubation temperature of 50°C and 2h incubation time. The hybrid Cu-doped TiO2 showed an excellent dye degradation efficiency ranging from 40-82% under UV-light irradiation.

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Synthesis of ZnO/rGO nanocomposites by wet impregnation method for photocatalytic performance against RhB dye and 4-chlorophenol under UV light irradiation

Journal of Materials Science Materials in Electronics ◽

10.1007/s10854-020-02885-y ◽

2020 ◽

Vol 31 (4) ◽

pp. 3361-3374 ◽

Cited By ~ 4

Author(s):

N. Kumaresan ◽

K. Ramamurthi

Keyword(s):

Photocatalytic Performance ◽

Uv Light ◽

Light Irradiation ◽

Impregnation Method ◽

Wet Impregnation ◽

Uv Light Irradiation ◽

Wet Impregnation Method

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Wastewater Derived Dissolved Organic Nitrogen Removal using Integrated System of Biological Reactors and UV light Irradiation

Proceedings of the Water Environment Federation ◽

10.2175/193864716819713286 ◽

2016 ◽

Vol 2016 (9) ◽

pp. 4958-4968

Author(s):

Swati Sharma ◽

Donald L Tucker ◽

Halis Simsek

Keyword(s):

Nitrogen Removal ◽

Dissolved Organic Nitrogen ◽

Organic Nitrogen ◽

Uv Light ◽

Integrated System ◽

Light Irradiation ◽

Uv Light Irradiation

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Synthesis, characterization and photocatalytic activities of Al-doped ZnO for degradation of methyl orange dye under UV light irradiation

Journal of the Australian Ceramic Society ◽

10.1007/s41779-020-00541-6 ◽

2021 ◽

Author(s):

Hartini Ahmad Rafaie ◽

Nur Aliyah Alwani Mohd Nazam ◽

Nurul Infaza Talalah Ramli ◽

Ruziana Mohamed ◽

Muhd Firdaus Kasim

Keyword(s):

Methyl Orange ◽

Uv Light ◽

Light Irradiation ◽

Uv Light Irradiation ◽

Photocatalytic Activities ◽

Methyl Orange Dye ◽

Doped Zno ◽

Degradation Of Methyl Orange

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TiO2-Powdered Activated Carbon (TiO2/PAC) for Removal and Photocatalytic Properties of 2-Methylisoborneol (2-MIB) in Water

Water ◽

10.3390/w13121622 ◽

2021 ◽

Vol 13 (12) ◽

pp. 1622

Author(s):

Xiao-Pin Guo ◽

Peng Zang ◽

Yong-Mei Li ◽

Dong-Su Bi

Keyword(s):

Activated Carbon ◽

Natural Organic Matter ◽

Uv Light ◽

Sol Gel ◽

Light Irradiation ◽

Nano Tio2 ◽

Uv Light Irradiation ◽

Adsorption Capacities ◽

Taste And Odor ◽

Composite Photocatalysts

2-methylisoborneol (2-MIB) is a common taste and odor compound caused by off-flavor secondary metabolites, which represents one of the greatest challenges for drinking water utilities worldwide. A TiO2-coated activated carbon (TiO2/PAC) has been synthesized using the sol-gel method. A new TiO2/PAC photocatalyst has been successfully employed in photodegradation of 2-MIB under UV light irradiation. In addition, the combined results of XRD, SEM-EDX, FTIR and UV-Vis suggested that the nano-TiO2 had been successfully loaded on the surface of PAC. Experimental results of 2-MIB removal indicated that the adsorption capacities of PAC for 2-MIB were higher than that of TiO2/PAC. However, in the natural organic matter (NOM) bearing water, the removal efficiency of 2-MIB by TiO2/PAC and PAC were 97.8% and 65.4%, respectively, under UV light irradiation. Moreover, it was shown that the presence of NOMs had a distinct effect on the removal of MIB by TiO2/PAC and PAC. In addition, a simplified equivalent background compound (SEBC) model could not only be used to describe the competitive adsorption of MIB and NOM, but also represent the photocatalytic process. In comparison to other related studies, there are a few novel composite photocatalysts that could efficiently and rapidly remove MIB by the combination of adsorption and photocatalysis.

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Photocatalytic performance of Cu-doped titania thin films under UV light irradiation

Applied Surface Science ◽

10.1016/j.apsusc.2021.149535 ◽

2021 ◽

Vol 553 ◽

pp. 149535

Author(s):

Elisa Moretti ◽

Elti Cattaruzza ◽

Cristina Flora ◽

Aldo Talon ◽

Eugenio Casini ◽

...

Keyword(s):

Thin Films ◽

Photocatalytic Performance ◽

Uv Light ◽

Light Irradiation ◽

Uv Light Irradiation ◽

Doped Titania

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Hydrolysis of Protein modified with UV Light Irradiation by Proteases

Nippon Nōgeikagaku Kaishi ◽

10.1271/nogeikagaku1924.34.142 ◽

1960 ◽

Vol 34 (2) ◽

pp. 142-145

Author(s):

Mitsuo KOSHIKA ◽

Yataro OBATA

Keyword(s):

Uv Light ◽

Light Irradiation ◽

Uv Light Irradiation ◽

Hydrolysis Of

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Amino acid-templated zinc phosphites: low-dimensional structures, fluorescence, and nonlinear optical properties

Dalton Transactions ◽

10.1039/d1dt00939g ◽

2021 ◽

Author(s):

Yumei Mao ◽

Xuehua Dong ◽

Yuandan Deng ◽

Jing Li ◽

Ling Huang ◽

...

Keyword(s):

Optical Properties ◽

Amino Acid ◽

Nonlinear Optical ◽

Uv Light ◽

Nonlinear Optical Properties ◽

Light Irradiation ◽

Blue Fluorescence ◽

Structure Directing Agent ◽

Uv Light Irradiation ◽

Low Dimensional

Two new zinc phosphites were prepared using the amino acid alanine as structure-directing agent. They have tubular and ladder-like structures exhibiting blue fluorescence upon UV light irradiation. Notably, the tubular...

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