Plasmon enhanced photocatalytic activity of Au@TiO 2 -graphene nanocomposite under visible light for degradation of pollutants

Ghasemi, Shahnaz; Hashemian, S. J.; Alamolhoda, Ali Asghar; Gocheva, Irina; Setayesh, Shahrbanoo Rahman

doi:10.1016/j.materresbull.2016.11.020

Cited by 58 publications

(20 citation statements)

References 32 publications

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“…The hot electrons generated from Au NPs are first injected to TiO 2 , and the electrons further transfer to graphene. This hot‐electron injection charge transfer mechanism is commonly used in Au–rGO–TiO 2 ternary photocatalytic system . Sequential interfacial charge transfer effectively restrains the recombination and prolongs the lifetime of photogenerated charge carriers.…”

Section: Metal and Graphene Cocatalystsmentioning

confidence: 99%

Dual Cocatalysts in TiO₂ Photocatalysis

et al. 2019

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became a Professor at Wuhan University of Technology. His current research interests include semiconductor photocatalysis, photocatalytic hydrogen production, CO 2 reduction to hydrocarbon fuels, and so on.such as noble metals, non-noble metals, metal oxides (e.g., CuO and NiO), [28,40] metal hydroxides, metal sulfides, metal phosphides (e.g., Co 2 P and Ni 2 P) [53,54] and carbonaceous materials. By contrast, some transition metal oxides (e.g., MnO x , CoO x , and Fe 2 O 3 ) [12,22,64] and phosphide (e.g., Co-Pi) [65] are used as oxidation cocatalysts for photocatalytic oxygen evolution reaction and photocatalytic degradation of pollutants.

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Section: Metal and Graphene Cocatalystsmentioning

confidence: 99%

Dual Cocatalysts in TiO₂ Photocatalysis

et al. 2019

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“…Let A, A * denote a Leonard pair on V. We can determine whether A, A * is self-dua By [13,Lemma 1.3] each eigenspace of A, A * has dimension one.…”

Section: Introductionmentioning

confidence: 99%

Azadirachta indica leaves extract assisted green synthesis of Ag-TiO2 for degradation of Methylene blue and Rhodamine B dyes in aqueous medium

Saeed

Muneer

Khosa

et al. 2019

Green Processing and Synthesis

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Aqueous pollution due to textile industry is an important issue. Photocatalysis is one of the methods used for eradication of dyes from textile industrial effluents. In this study, the synthesis, characterization and evaluation of photo catalytic activity of Ag-TiO2 is reported. TiO2 catalysts with 2, 4, 6 and 8% loading of Ag were prepared by green methods using Azadirachta indica leaves extract as reducing agent with titanium dioxide and silver nitrate as precursor materials. Prepared catalyst was characterized by advanced techniques and was used as catalyst for degradation of Methylene blue and Rhodamine B dyes. Deposition of Ag greatly enhanced the catalytic efficiency of TiO2 towards degradation of dyes. Irradiation of catalyst excites electrons from conduction band of catalyst to valence band yielding an electron-hole pair. This electron-hole pair undergoes secondary reactions and produce OH∙ radicals. These active radicals take part in degradation of dyes. More than 90% dyes were degraded in 120 min. Photo catalytic degradation of Methylene blue and Rhodamine B followed Eley-Rideal mechanism which states that dye react in fluid phase with adsorbed oxygen.

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“…Nanoparticles exhibiting LSPR have widely been studied for applications including solar cells, drug delivery, pollutant degradation, and affinity sensing. [32][33][34][35] Both near-eld enhancement and light trapping through efficient scattering from these nanoparticles can improve the efficiency of light-harvesting systems.…”

Section: Nanoparticle Enhancement Of the Light Intensity For Hydrogenmentioning

confidence: 99%

Rhodopseudomonas palustris-based conversion of organic acids to hydrogen using plasmonic nanoparticles and near-infrared light

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Plasmon enhanced photocatalytic activity of Au@TiO 2 -graphene nanocomposite under visible light for degradation of pollutants

Cited by 58 publications

References 32 publications

Dual Cocatalysts in TiO₂ Photocatalysis

Dual Cocatalysts in TiO₂ Photocatalysis

Azadirachta indica leaves extract assisted green synthesis of Ag-TiO2 for degradation of Methylene blue and Rhodamine B dyes in aqueous medium

Rhodopseudomonas palustris-based conversion of organic acids to hydrogen using plasmonic nanoparticles and near-infrared light

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Plasmon enhanced photocatalytic activity of Au@TiO 2 -graphene nanocomposite under visible light for degradation of pollutants

Cited by 58 publications

References 32 publications

Dual Cocatalysts in TiO2 Photocatalysis

Dual Cocatalysts in TiO2 Photocatalysis

Azadirachta indica leaves extract assisted green synthesis of Ag-TiO2 for degradation of Methylene blue and Rhodamine B dyes in aqueous medium

Rhodopseudomonas palustris-based conversion of organic acids to hydrogen using plasmonic nanoparticles and near-infrared light

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Dual Cocatalysts in TiO₂ Photocatalysis

Dual Cocatalysts in TiO₂ Photocatalysis