Facile in-situ formation of rGO/ZnO nanocomposite: Photocatalytic remediation of organic pollutants under solar illumination

Shanmugasundaram, Arunkumar; Boppella, Ramireddy; Jeong, Yun-Jin; Park, Jong‐Sung; Kim, Young‐Bae; Choi, Byungchul; Park, Su Han; Jung, Seunghun

doi:10.1016/j.matchemphys.2018.07.046

Cited by 42 publications

(17 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Even the treatment of graphene's surface with few amounts of nano-sized ZnO to enhance the catalytic activity in the photodegradation process has not been investigated earlier. It is known that graphene can absorb light in the UV region [45,46] and its surface contains many structural defects [47] that are crucial in the degradation of organic pollutants either by adsorption or photocatalysis [46,47,48,49]. In the present work, the hybridization of RGO/GO with a small amount of ZnO significantly increased the photodegradation activities.…”

Section: Introductionmentioning

confidence: 47%

“…Without a doubt, graphene paved the way for the next generation of ZnO photocatalyst since in the presence of graphene sheets ZnO displays a high performance in photocatalytic degradation of organic dyes either under UV or visible light irradiation [44]. Lately, a new nanocomposite, based on mesoporous ZnO flowers and reduced graphene oxide sheets, has been reported [45]. The degradation rate of methylene blue dye by photoluminescence of this composite under standard solar light irradiation was found to be six times higher than the pristine components.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synergistic effect of zinc oxide nanorods on the photocatalytic performance and the biological activity of graphene nano sheets

Ghanem

Badawy

Mohram

et al. 2020

Heliyon

View full text Add to dashboard Cite

In this work, decoration of the graphene surface with 5 wt. % ZnO nanorods (ZnO NRs), to ensure the potential photocatalytic performance of the formed nanocomposites, is demonstrated. Graphene oxide (GO) was synthesized with Hummer method followed by reduction to give reduced graphene oxide (RGO). The adjustable nanocompositing exhibited long-sought workability not only in in-situ incorporation of nanorods while reduction of graphene oxide (IZG) but also in ex-situ mixing of RGO or GO with the nanorods, (EZG) and (ZGO) respectively. The demineralization of synthetic wastewater has been evaluated by chemical oxygen demand and the obtained nanocomposites possess enhanced photocatalytic activities with 30 % and 35% over pure RGO and GO, respectively. This higher efficiency could be attributed to the synergistic effect between ZnO and the planner structure of graphene sheets which developed unprecedented polycrystalline structure. Also, the results proved that even the RGO or GO have played a dual function in photocatalysis, adsorption, and degradation. Also, the bactericidal effect of the prepared samples was studied against deleterious microorganisms. The findings of this work pave the way for the new generation of highly efficient photocatalysts based graphene with economic attraction and environmental impact.

show abstract

Section: Introductionmentioning

confidence: 47%

Section: Introductionmentioning

confidence: 99%

Synergistic effect of zinc oxide nanorods on the photocatalytic performance and the biological activity of graphene nano sheets

Ghanem

Badawy

Mohram

et al. 2020

Heliyon

View full text Add to dashboard Cite

show abstract

“…36-1451 data). 29 The characteristic peaks located at 9.8° corresponding to the (001) crystalline reference plane of GO. 30 The XRD pattern of CGH and ZnO–GO/CGH composites indicates intense diffraction peaks at 2 θ = 20.5° and 21.7°, respectively, which are attributed to the amorphous structure of chitin.…”

Section: Resultsmentioning

confidence: 99%

In situ synthesis of ZnO–GO/CGH composites for visible light photocatalytic degradation of methylene blue

Guo

Zhu

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…The findings suggest that the composites of GO/ZnO showed a 6.3-fold rise in deterioration constant compared to pristine ZnO. Compared to natural ZnO, the photoluminescence peak of GO/ZnO nanocomposites was often lower, meaning that GO significantly enhanced the photo-induced charge-transfer output and electron-transmission, culminating in the relatively high photocatalytic behaviour of the GO/ZnO nanocomposites [ 57 ].…”

Section: Photocatalytic Degradation Of Phenanthrenementioning

confidence: 99%

Metal-Based Nanocomposite Materials for Efficient Photocatalytic Degradation of Phenanthrene from Aqueous Solutions

et al. 2021

View full text Add to dashboard Cite

Polycyclic aromatic hydrocarbons (PAHs) are a class of naturally occurring chemicals resulting from the insufficient combustion of fossil fuels. Among the PAHs, phenanthrene is one of the most studied compounds in the marine ecosystems. The damaging effects of phenanthrene on the environment are increasing day by day globally. To lessen its effect on the environment, it is essential to remove phenanthrene from the water resources in particular and the environment in general through advanced treatment methods such as photocatalytic degradation with high-performance characteristics and low cost. Therefore, the combination of metals or amalgamation of bimetallic oxides as an efficient photocatalyst demonstrated its propitiousness for the degradation of phenanthrene from aqueous solutions. Here, we reviewed the different nanocomposite materials as a photocatalyst, the mechanism and reactions to the treatment of phenanthrene, as well as the influence of other variables on the rate of phenanthrene degradation.

show abstract

Facile in-situ formation of rGO/ZnO nanocomposite: Photocatalytic remediation of organic pollutants under solar illumination

Cited by 42 publications

References 57 publications

Synergistic effect of zinc oxide nanorods on the photocatalytic performance and the biological activity of graphene nano sheets

Synergistic effect of zinc oxide nanorods on the photocatalytic performance and the biological activity of graphene nano sheets

In situ synthesis of ZnO–GO/CGH composites for visible light photocatalytic degradation of methylene blue

Metal-Based Nanocomposite Materials for Efficient Photocatalytic Degradation of Phenanthrene from Aqueous Solutions

Contact Info

Product

Resources

About