Degradation of Organic Dyes by CdSe Decorated Graphene Nanocomposite in Dark Ambiance

Ullah, Kefayat; Jo, Sun-Bok; Zhu, Lihua; Mukhopadhyay, Goutam; Oh, Won‐Chun

doi:10.1080/1536383x.2014.885954

Cited by 15 publications

(7 citation statements)

References 28 publications

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“…In the dyeing industry, 10% or more of these dyes are released as waste effluents, which can cause colored water pollution and represent a threat to human and animal health (Ullah, 2015;Moutaouakkil, 2011). Methylene blue (MB), an aromatic heterocyclic dye, is widely used in dyeing industry.…”

Section: Introductionmentioning

confidence: 99%

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Wang

Dong

Meng

et al. 2017

Chemical Engineering Science

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Section: Introductionmentioning

confidence: 99%

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Wang

Dong

Meng

et al. 2017

Chemical Engineering Science

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“…Dyes with toxicity, low biodegradability and carcinogenicity have been produced largely and extensively used in some fields such as paper, textiles and rubber productions Inevitably, there are lots of dyeing effluents discharged from above industries every year which result in severe problems and causes negative impacts directly and indirectly on both ecosystems and human health . The refractory organics can be oxidized completely via interacting with HO⋅ generated by oxidants in a catalytic oxidation process in which the catalysts play a vital role …”

Section: Introductionmentioning

confidence: 99%

Yolk‐Shell Structured Fe₃O₄ @ Copper Silicate as Catalyst for Catalytic Degradation of Methylene Blue

Huang

Wang

2018

ChemistrySelect

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Yolk‐shell structured Fe3O4@copper silicates (FCSs) were prepared and applied for catalytic degradation of methylene blue (MB). The samples were characterized by SEM, TEM, XRD, FTIR, XPS and N2 sorption isotherms. FCS prepared with trisodium citrate, named FtCS, presented better catalytic performance than FcCS (FCS prepared with cetyltrimethylammonium bromide (CTAB)) and other catalysts reported recently. Four successive runs of FtCS along with the negligible Cu2+ leaching (6 ppm) certified that the composite was stable. The results showed that copper component ≡Cu(II) in FtCS was the main active phase which promoted H2O2 to produce hydroxyl radicles (HO⋅) resulting in the MB decomposition.

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“…CdSe produces a self-degradation property, which leads to the degradation of RhB. And RGO nanosheets transfer electrons (e − ) to the conduction band of CdSe, which increases the number of electrons as well as the rate of electron-induced redox reactions [17,18,21]. The positive charge hole (h + ) can react with OH − derived from H 2 O to form hydroxyl radicals (OH • ).…”

Section: Adsorption and Photocatalytic Degradation Of Rhbmentioning

confidence: 99%

Preparation of CdSe / RGO-GO composites with the high performance of adsorption and degradation

et al. 2020

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Nowadays, dyes are usually chemically stable, can not be degraded naturally within a short time, and easy to migrate along with water, which is the main source to influence the health of human beings and to destroy the ecosystem. Based on that, in this work a high-performance photocatalyst was prepared successfully by an organic synthesis method. The obtained photocatalyst contained numerous nanoscale heterojunctions, which consisted of CdSe nanoparticles scattered on the partially reduced graphene oxide (named as CdSe / RGO-GO). The samples were characterized by photoluminescence spectra (PL), transmission electron microscopy (TEM), and ultraviolet and visible spectrophotometry (UV-vis). The photocatalytic activity was evaluated by the degradation of organic dyes Rhodamine B (RhB) aqueous solution under irradiation of visible light and no light. Results show that the degradation efficiency of nanocomposites was 84.4 % in the first 10 minutes under darkness. After 50 minutes of visible light irradiation, the degradation efficiency was 94 %. The high degradation efficiency of photocatalysts attributes to the synergistic effect of graphene oxide adsorption and heterojunctions catalysis. CdSe / RGO-GO photocatalyst reported in this paper has a series of advantages, such as pollutionfree, recyclability, stability, and insolubility in water. The preparation of CdSe / RGO-GO composites has potential applications in curbing pollution.

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Degradation of Organic Dyes by CdSe Decorated Graphene Nanocomposite in Dark Ambiance

Cited by 15 publications

References 28 publications

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Yolk‐Shell Structured Fe₃O₄ @ Copper Silicate as Catalyst for Catalytic Degradation of Methylene Blue

Preparation of CdSe / RGO-GO composites with the high performance of adsorption and degradation

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Degradation of Organic Dyes by CdSe Decorated Graphene Nanocomposite in Dark Ambiance

Cited by 15 publications

References 28 publications

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Yolk‐Shell Structured Fe3O4 @ Copper Silicate as Catalyst for Catalytic Degradation of Methylene Blue

Preparation of CdSe / RGO-GO composites with the high performance of adsorption and degradation

Contact Info

Product

Resources

About

Yolk‐Shell Structured Fe₃O₄ @ Copper Silicate as Catalyst for Catalytic Degradation of Methylene Blue