Composite Carbon-lignin/ Zinc Oxide Nanocrystalline Ball-like Hexagonal Mediated from Jatropha curcas L Leaf as Photocatalyst for Industrial Dye Degradation

Ulum, Bahrul; Ilyas, Sultan; Fahri, Ahmad Nurul; Mutmainna, Inayatul; Anugrah, Muhammad Angga; Yudasari, Nurfina; Demmalino, Eymal B.; Tahir, Dahlang

doi:10.1007/s10904-020-01631-5

Cited by 22 publications

(4 citation statements)

References 48 publications

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“…At the lowest temperature, there are some small peaks that occur at 2θ: From the XRD spectra in Figure 3 clearly shows relationship between calcination temperatures with the peak intensities. At low calcination temperature (500 o C) the intensity of diffraction peaks are sharp and decrease with increasing the calcination temperature, consequently decrease the crystallite size as can be seen in Table 1 calculated from the Debye Scherrer's equation [3,60,61]:…”

Section: Xrd Analysismentioning

confidence: 99%

Green Synthesis ZnO/TiO2 for High Recyclability Rapid Sunlight Photodegradation Textile Dyes Applications

Rusman

Heryanto

et al. 2021

Preprint

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Composite ZnO/TiO2 have been successfully synthesized by green synthesis method with various calcination temperature 500oC, 600oC, 700oC, and 800oC (TiO2 concentrations: 2.5 g and 5 g) for photocatalyst application. In this study, Calopogonium mucunoides leaf extract was used as reducing and stabilizing agent. The synthesized composites were characterized by using Fourier Transform Infra-Red (FTIR), X-Ray Diffraction (XRD), and UV-Visible spectroscopy. The XRD spectra shows the hexagonal phase with wurtzite structure of ZnO and anatase for TiO2. The best degradation performance is 98.26% (only 10 min) for ZnO/TiO2 (5 g) with calcination temperature is 800oC. This is due to the highest distance between two optical phonon mode Δ(LO-TO) and lowest attenuating and propagating constant. The composite ZnO/TiO2 shows high potentials photodegradation of organic dyes with the high stable recyclability up to 5 cycles (> 95%) only for every 15 minutes. High potentials for applicability with the concept environmentally friendly principles and stability for circular chemistry, and efficiency of use the energy and chemicals.

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Section: Xrd Analysismentioning

confidence: 99%

Green Synthesis ZnO/TiO2 for High Recyclability Rapid Sunlight Photodegradation Textile Dyes Applications

Rusman

Heryanto

et al. 2021

Preprint

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“…This method was successfully applied for the following materials: the composite cement/BaSO4/ Fe 3 O 4, 52 composite geopolymer fly ash−metal, 53 Co/Fe 2 O 3 − AC, 47 nanoparticle Zn(OH) 2 , 54 composite Fe/CNs/PVA, 55 bioplastics (SPF/starch/chitosan/polypropylene), 56 and composite nanocrystalline carbon−lignin/zinc oxide. 57 The magnetic properties are measured using a vibrating sample magnetometer (VSM) for various amount of carbon in Fe 2 O 3 . X-ray photoelectron spectroscopy (XPS) was used for identifying the interactions and bonding states at the interatomic level.…”

Section: Introductionmentioning

confidence: 99%

“…The optical properties (refractive index ( n and k )) and dielectric function (ε) of the semiconductor Fe 2 O 3 –carbon were determined from the quantitative analysis of the FTIR spectra using Kramers–Kronig (KK) relation. This method was successfully applied for the following materials: the composite cement/BaSO4/Fe 3 O 4, composite geopolymer fly ash–metal, Co/Fe 2 O 3 –AC, nanoparticle Zn(OH) 2 , composite Fe/CNs/PVA, bioplastics (SPF/starch/chitosan/polypropylene), and composite nanocrystalline carbon–lignin/zinc oxide . The magnetic properties are measured using a vibrating sample magnetometer (VSM) for various amount of carbon in Fe 2 O 3 .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Visible-Light Absorption of Fe₂O₃ Covered by Activated Carbon for Multifunctional Purposes: Tuning the Structural, Electronic, Optical, and Magnetic Properties

et al. 2021

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Visible-light absorption is a critical factor for photocatalyst activity and absorption of electromagnetic (EM) interference application. The band gap of Fe 2 O 3 is 2 eV, which can be increased by doping with a high-band-gap material such as carbon from activated carbon (AC) with a band gap of 4.5 eV for increased visible-light absorption. The porosity decreases from 88 to 81.6%, and the band gap increases from 2.14 to 2.64 eV by increasing the AC from 10 to 25%, respectively. The photocatalytic activity takes 120 min to produce a harmless product for 10− 20% AC, but 25% AC shows 89.5% degradation in only 90 min and the potential to attenuate the EM wave up to 99% due to the RL being below −20 dB. The secondand third-cycle degradation achieved by the composite Fe 2 O 3 −AC having 25% AC is 88.2 and 86.5% in 90 min, respectively. The pore of the surface state of AC contains a trapped charge, and interaction occurs between the charge (electron/hole) and O 2 or H 2 O to produce OH and superoxide (O 2 − ) radicals. These radicals move inside the molecule of the pollutant (methylene blue (MB)) to break up the bond, with the final products being H 2 O and CO 2 . The X-ray photoelectron (XPS) spectra show that oxygen plays a key role in the interatomic bonding with Fe, C, and MB atoms. The best absorption of EM interference is −21.43 dB, with degradation reaching 89.51% in only 90 min for 25% AC due to its higher band gap and anisotropy constant. Fe 2 O 3 −carbon is a multifunctional material for the green environment because of its electromagnetic interference absorption and photodegradation of wastewater.

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“…Semiconductors, as photocatalysts, are applied in the degradation of pollutants. However, some traditional photocatalytic semiconductors with the disadvantages of low light response range and fast photogenerated electron hole recombination rate, cause limited photocatalytic performance in the process of actual application [4][5]. Therefore, the key of photocatalytic technology is to nd excellent semiconductor materials and effective methods to modify photocatalytic activity of semiconductor materials.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of Composites With Magnesium Aluminum Hydrotalcite Derived Metal Oxides and g-C3N4

Zhang

Wen

et al. 2021

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The remove of the organic pollutants in water plays an important role on the environmental protection, thus photocatalysis, as an effective method, has been attained much attention to deal with this problem. In this paper, a composite of g-C3N4 and Mg-Al hydrotalcite derived metal oxides was prepared to degrade these organic pollutants by simple calcination and co-precipitation methods. And Mg-Al hydrotalcite derived metal oxides were successfully coated on the surface of g-C3N4. The photocatalytic degradation rate of methylene blue reached 97.3% within 1h under visible light, and the degradation rate constant was 0.0432min-1, which is 3.6 times that of g-C3N4. In the recycling process of the catalyst, the good stability of photocatalytic degradation was found. Though characterization analysis, more active sites are exposed to absorb more organic pollutants on the mater surface in the presence of the interinserted and coated structures of composite materials, and the "face to face" contact structure between 2D materials is formed to promote the separation of photogenerated carriers. In addition, the photocatalytic degradation mechanism of the catalyst was explained by free radical scavenging experiment. The material provides an effective method for removing organic pollutants in water, and has broad application prospects.

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Composite Carbon-lignin/ Zinc Oxide Nanocrystalline Ball-like Hexagonal Mediated from Jatropha curcas L Leaf as Photocatalyst for Industrial Dye Degradation

Cited by 22 publications

References 48 publications

Green Synthesis ZnO/TiO2 for High Recyclability Rapid Sunlight Photodegradation Textile Dyes Applications

Green Synthesis ZnO/TiO2 for High Recyclability Rapid Sunlight Photodegradation Textile Dyes Applications

Enhanced Visible-Light Absorption of Fe₂O₃ Covered by Activated Carbon for Multifunctional Purposes: Tuning the Structural, Electronic, Optical, and Magnetic Properties

Photocatalytic Degradation of Composites With Magnesium Aluminum Hydrotalcite Derived Metal Oxides and g-C3N4

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Composite Carbon-lignin/ Zinc Oxide Nanocrystalline Ball-like Hexagonal Mediated from Jatropha curcas L Leaf as Photocatalyst for Industrial Dye Degradation

Cited by 22 publications

References 48 publications

Green Synthesis ZnO/TiO2 for High Recyclability Rapid Sunlight Photodegradation Textile Dyes Applications

Green Synthesis ZnO/TiO2 for High Recyclability Rapid Sunlight Photodegradation Textile Dyes Applications

Enhanced Visible-Light Absorption of Fe2O3 Covered by Activated Carbon for Multifunctional Purposes: Tuning the Structural, Electronic, Optical, and Magnetic Properties

Photocatalytic Degradation of Composites With Magnesium Aluminum Hydrotalcite Derived Metal Oxides and g-C3N4

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Enhanced Visible-Light Absorption of Fe₂O₃ Covered by Activated Carbon for Multifunctional Purposes: Tuning the Structural, Electronic, Optical, and Magnetic Properties