Graphene oxide nanocomposite with CuSe and photocatalytic removal of methyl green dye under visible light irradiation

Iqbal, Mahwish; Bhatti, Haq Nawaz; Younis, Sumaira; Rehmat, Sehrish; Alwadai, Norah; Almuqrin, Aljawhara H.; Iqbal, Munawar

doi:10.1016/j.diamond.2021.108254

Cited by 44 publications

(22 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, the decreased photocatalytic efficiency was also attributed to the limited generation of OHc radicals by the heavily covered photocatalyst surfaces. 89 Similarly, the reduced degradation efficiency at high initial concentrations of pollutants was attributed to the low penetration of light and limited availability of surface active sites of the photocatalyst. 90 4.1.1.3 Effect of photocatalyst dose.…”

Section: Degradation Of Organic Pollutantsmentioning

confidence: 99%

Recent progress in semiconductor/graphene photocatalysts: synthesis, photocatalytic applications, and challenges

2023

View full text Add to dashboard Cite

show abstract

Section: Degradation Of Organic Pollutantsmentioning

confidence: 99%

Recent progress in semiconductor/graphene photocatalysts: synthesis, photocatalytic applications, and challenges

2023

View full text Add to dashboard Cite

show abstract

“…Gelatin is among the natural materials as a produced natural biopolymer from the cattle and pig collagen in a mixture of peptides and proteins and therefore, it has good functionalities and therefore, it has been employed in the assembly of some efficient adsorbents for removal of some toxic pollutants 28 – 31 . On the other hand, graphene and its derivatives have been applied in management processes of water pollution via adsorption technique 32 . Graphene oxide (GO) is generally produced by oxidation of graphene and therefore, it is characterized by different related functionalities of the incorporated oxygen in the forms of oxygenated as carboxylic, carbonyl and hydroxyl groups to enable GO for greater potency to undergo surface functionalization 33 , 34 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of innovative and sustainable gelatin@graphene oxide-crosslinked-zirconium silicate@gelatin nanobiosorbent for effective biosorption of basic fuchsin dye

Mahmoud

Nabil

Elsayed

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Most dye stuffs and coloring materials are mainly categorized as hazardous pollutants in water effluents due to their nature as non-biodegradable, highly toxic and extremely carcinogenic. For this reason, rapid and efficient eradication of waste dyes from wastewaters before discharging into water streams must be accomplished by an acceptable approach as adsorption technique. Therefore, the present study is aimed and devoted to synthesize a novel nanobiosorbent from three different constituents, gelatin (Gel) as a sustainable natural product, graphene oxide (GO) as an example of highly stable carbonaceous material and zirconium silicate (ZrSiO4) as an example of combined metal oxides for the formation of Gel@GO-F-ZrSiO4@Gel by using formaldehyde (F) as a cross-linkage reagent. Several characterization techniques as FT-IR were employed to identify the incorporated surface reactive Functionalities in Gel@GO-F-ZrSiO4@Gel as –OH, =NH, –NH2, –COOH and C=O, etc. The morphology for particle shape and size of Gel@GO-F-ZrSiO4@Gel were confirmed from the SEM and TEM analyses providing 15.75- 32.79 nm. The surface area was determined by the BET and found to correspond to 219.46 m2 g-1. Biosorptive removal of basic fuchsin (BF) pollutant as an example of a widely applicable dye in various activities was monitored and optimized under the influence of pH (2–10), reaction time (1–30 min), initial BF pollutant concentration (5–100 mg L−1), nanobiosorbent dosage (5–60 mg), temperature (30–60 °C) and interfering ions. The maximum biosorptive removal values of BF dye were established as 96.0 and 95.2% using 5 and 10 mg L−1, respectively at the recommended pH 7 condition. The Thermodynamic parameters demonstrated that the BF dye adsorption onto Gel@GO-F-ZrSiO4@Gel was taken place via spontaneous and endothermic reaction. Chemisorption is the predominant adsorption mechanism by forming multilayers upon nonhomogeneous surface in accordance with Freundlich model hypothesis. The applicability of the optimized Gel@GO-F-ZrSiO4@Gel in biosorptive removal of BF pollutant from real water sample was successfully accomplished by the batch technique. Thus, this study clearly shows that Gel@GO-F-ZrSiO4@Gel exhibited significant influences on remediation of industrial effluents containing BF pollutant with superior efficiency.

show abstract

“…[1] In general, copper selenide exhibits tetragonal, monoclinic, hexagonal, and cubic phases. [2] They find electric, thermal and photovoltaic applications. [2] DOI: 10.1002/crat.202100237 Cubic CuSe nanostructures are reported having great applications in biomedical engineering.…”

Section: Introductionmentioning

confidence: 99%

“…[2] They find electric, thermal and photovoltaic applications. [2] DOI: 10.1002/crat.202100237 Cubic CuSe nanostructures are reported having great applications in biomedical engineering. [3] On the other hand, orthorhombic CuSe substrates were mentioned highly attractive for use as photocatalyst.…”

Section: Introductionmentioning

confidence: 99%

Au Nanosheets‐Assisted Structural Phase Transitions, In Situ Monitoring of the Enhanced Crystallinity, and Their Effect on the Optical and Dielectric Properties of CuSe/Au/CuSe Thin Films

Qasrawi

Baniowdah

Samen

2022

Crystal Research and Technology

View full text Add to dashboard Cite

Herein, stacked layers of copper selenide thin films comprising Au nanosheets in its structure are fabricated and characterized. The CuSe/Au/CuSe (CAC) thin films are prepared by the thermal evaporation technique under a vacuum pressure of 10−5 mbar. It is shown that Au nanosheets improve the stoichiometric growth of the CuSe thin films and induce the structural phase transitions from cubic to hexagonal. In addition, the in situ monitoring of the structural modifications in the CAC in the temperature range of 293–473 K proves the permanent enhanced crystallinity of the films. Optically, while the Au nanosheets increase the light absorbability and redshifts the energy band gap of CuSe, the in situ heating blueshifts the energy band gap. Moreover, insertion of Au nanosheets between layers of CuSe and heating them at 473 K significantly increase the dielectric constant and the optical conductivity by more than five times. Moreover, the drift mobility of charged carriers, the scattering time at femtosecond level, and the plasmon frequency are remarkably enhanced. Values of plasmon frequency exceed 6.0 GHz nominating the CAC films as signal receivers suitable for 5G technology.

show abstract

Graphene oxide nanocomposite with CuSe and photocatalytic removal of methyl green dye under visible light irradiation

Cited by 44 publications

References 42 publications

Recent progress in semiconductor/graphene photocatalysts: synthesis, photocatalytic applications, and challenges

Recent progress in semiconductor/graphene photocatalysts: synthesis, photocatalytic applications, and challenges

Synthesis of innovative and sustainable gelatin@graphene oxide-crosslinked-zirconium silicate@gelatin nanobiosorbent for effective biosorption of basic fuchsin dye

Au Nanosheets‐Assisted Structural Phase Transitions, In Situ Monitoring of the Enhanced Crystallinity, and Their Effect on the Optical and Dielectric Properties of CuSe/Au/CuSe Thin Films

Contact Info

Product

Resources

About