Improvement of Photocatalytic Degradation of Naphthol Green B Under Solar Light Using Aluminum Doping of Zinc Oxide Nanoparticles

Saber, Osama; El‐Brolossy, T. A.; Jaafari, Abdullah A. Al

doi:10.1007/s11270-012-1222-5

Cited by 31 publications

(38 citation statements)

References 32 publications

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“…This was achieved by introducing metal and nonmetal dopants into the zinc oxide structure. The optical properties of ZnO could be changed by the introduction of extrinsic dopants, such as aluminum, at zinc lattice sites . Other researchers have tried to achieve this aim by reducing the rate of recombination reactions of photogenerated electron–hole pairs in zinc oxide.…”

Section: Introductionmentioning

confidence: 99%

Accelerating the Photocatalytic Degradation of Green Dye Pollutants by Using a New Coating Technique for Carbon Nanotubes with Nanolayered Structures and Nanocomposites

et al. 2018

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The present study has two aims, first to accelerate the degradation of pollutants by coating carbon nanotubes (CNTs) with nanoplatelets or nanocomposites of aluminum zinc oxides and second to fabricate an advanced photocatalyst. Accordingly, Zn‐Al layered double hydroxides (LDHs) were grown in the presence of functionalized CNTs during urea hydrolysis. The presence of CNTs led to the formation of LDH nanoplatelets, and TEM images showed that the CNTs were coated with nanoplatelets. The nanoplatelets were thermally treated to form nanocomposite‐coated CNTs. Raman spectra demonstrated the successful coating of CNTs with LDHs and nanocomposite. The coated CNTs were very effective in the photocatalytic degradation of industrial pollutants. A kinetics study demonstrated that the rate of photocatalytic degradation of green dye in the presence of CNTs coated with aluminum zinc oxide nanocomposite was five times faster than with the aluminum zinc oxide nanocomposite.

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Section: Introductionmentioning

confidence: 99%

Accelerating the Photocatalytic Degradation of Green Dye Pollutants by Using a New Coating Technique for Carbon Nanotubes with Nanolayered Structures and Nanocomposites

et al. 2018

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“…Owing to its bright color, water-fastness and easy coloration, NGB is widely applied as a coloring agent in the leather and fur industries and as a biological stain in modern industry. However, directly discharging NGB dye to the environment will cause serious pollution to aquatic life and mutagenicity to humans [43]. Due to the synthetic and complex aromatic structure, the NGB is difficult to be removed by biodegrading [44].…”

Section: Introductionmentioning

confidence: 99%

“…Due to the synthetic and complex aromatic structure, the NGB is difficult to be removed by biodegrading [44]. Furthermore, due to the high pH, high concentration, and high chroma, it is not economically feasible to remove the NGB from industrial wastewater effluents by using conventional methods [43]. Recently, some endeavors using AOPs have been employed to improve the removal efficiency of NGB, such as photocatalytic degradation of NGB by Al-doped ZnO [45], semiconducting Sb 2 S 3 [46] and Fe(III) induced by ligand-to-metal charge transfer excitation [47], and photo-Fenton degradation [48].…”

Section: Introductionmentioning

confidence: 99%

Excellent Performance of Fe78Si9B13 Metallic Glass for Activating Peroxymonosulfate in Degradation of Naphthol Green B

Xue-fen

Liang

et al. 2017

Metals

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Abstract:The functional application of metallic glasses in the catalytic field has widely attracted research attention due to its unique atomic structure compared to crystalline materials. It has been reported that metallic glasses can effectively activate H 2 O 2 and persulfate, yet the activation of peroxymonosulfate by metallic glasses is not studied well. In this work, the metallic glass with atomic composition of Fe 78 Si 9 B 13 was applied for investigating the peroxymonosulfate (PMS) activation on degradation of naphthol green B (NGB) dye. The change of surface morphology indicated the important role of oxide films during the dye degradation. The effects and first-order kinetics model of various reaction parameters were evaluated systematically, including PMS concentration, catalyst dosage, irradiation intensity, and dye concentration. The results showed that about 98% of the dye removal rate could be achieved only within 10 min under rational conditions. The reaction kinetics k of 0.1339 min −1 without ribbons was sharply improved to 0.3140 min −1 by adding 0.5 g/L ribbons, indicating the superior activation ability of Fe 78 Si 9 B 13 metallic glass. The recycling experiment revealed that the Fe 78 Si 9 B 13 ribbons exhibited the excellent surface stability and catalytic reusability for activating PMS even after reused for 10th run.

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“…On the contrary, Saber et al [20] proposed that the improvement of photocatalytic activity of AZO in the photocatalytic decomposition of naphthol green B in the presence of sunlight irradiation is mainly attributed to the reduction of band gap by the addition of Al. AZO films were also used as photocatalysts for the decomposition of methyl orange under UV and sunlight and found to have a excellent photocatalytic activity [21].…”

mentioning

confidence: 99%

Degradation kinetics for photocatalytic reaction of methyl orange over Al-doped ZnO nanoparticles

Lee

Kim

Park

et al. 2015

Journal of Industrial and Engineering Chemistry

107

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Improvement of Photocatalytic Degradation of Naphthol Green B Under Solar Light Using Aluminum Doping of Zinc Oxide Nanoparticles

Cited by 31 publications

References 32 publications

Accelerating the Photocatalytic Degradation of Green Dye Pollutants by Using a New Coating Technique for Carbon Nanotubes with Nanolayered Structures and Nanocomposites

Accelerating the Photocatalytic Degradation of Green Dye Pollutants by Using a New Coating Technique for Carbon Nanotubes with Nanolayered Structures and Nanocomposites

Excellent Performance of Fe78Si9B13 Metallic Glass for Activating Peroxymonosulfate in Degradation of Naphthol Green B

Degradation kinetics for photocatalytic reaction of methyl orange over Al-doped ZnO nanoparticles

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