Applied Surface Science, Journal Year: 2025, Volume and Issue: 688, P. 162351 - 162351
Published: Jan. 11, 2025
Language: Английский
Materials Research Bulletin, Journal Year: 2023, Volume and Issue: 163, P. 112233 - 112233
Published: March 12, 2023
Language: Английский
Citations
92
Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(2), P. 109487 - 109487
Published: Feb. 13, 2023
Language: Английский
Citations
89
ACS Applied Nano Materials, Journal Year: 2022, Volume and Issue: 5(3), P. 3087 - 3109
Published: Feb. 22, 2022
The same carbon-based nanomaterials have shown their potential photocatalytic applications toward environmental and energy-related problems based on excellent light absorption abilities. Herein, we summarized the findings associated with visible sunlight-induced photocatalysis, specifically using carbon dots (CD), doped-CD, nanocomposite as an advanced material. Doped-CD CD-based composite improved abilities compared to bare CD, which is essential parameter for photocatalysis applications. Various parameters, such fabrication methodologies, efficiency, stability, also been discussed. possible mechanistic insights involving method applied in multiple chemical reactions discussed detail, including degradation of organic dye, reduction higher toxic oxidation states metal ions, CO2 conversion, water splitting, transformation reaction, NOx removal, etc.
Language: Английский
Citations
83
ACS Omega, Journal Year: 2023, Volume and Issue: 8(17), P. 14965 - 14984
Published: April 17, 2023
This study reports on successful synthesis of carbon dots (CDs), nitrogen-doped zinc oxide (N-ZnO), and N-ZnO/CD nanocomposites as photocatalysts for degradation methylene blue. The first part was the CDs utilizing a precursor from soybean ethylenediamine dopant by hydrothermal method. second N-ZnO with urea nitrogen carried out calcination method in furnace at 500 °C 2 h an N2 atmosphere (5 min-1). third nanocomposites. characteristics CDs, N-ZnO, were analyzed through Fourier transform infrared (FTIR), UV-vis absorbance, photoluminescence (PL), high-resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), thermal gravimetry analysis (TGA), field-emission scanning energy-dispersive spectroscopy (FESEM EDS), photoelectron (XPS), Brunauer-Emmett-Teller (BET) analysis. Based HR-TEM analysis, had spherical shape average particle size 4.249 nm. Meanwhile, based XRD characterization, have wurtzite hexagonal structures. materials show increased adsorption visible light region low energy gap Eg. Eg values N-ZnO/CDs found to be 2.95 2.81 eV, respectively, whereas surface area (SBET) 3.827 m2 g-1 (N-ZnO) 3.757 g-1(N-ZnO/CDs) belonged microporous structure. In last part, used MB (10 ppm) under UV-B irradiation pH = 7.04 (neutral) 60 min room temperature. showed photodegradation efficiency 83.4% kinetic rate 0.0299 min-1 higher than CDs. FESEM EDS before after three cycles confirm stability photocatalyst 58.2%. These results clearly shown that could ideal photocatalytic material decolorization organic compounds wastewater.
Language: Английский
Citations
74
Frontiers in Chemistry, Journal Year: 2022, Volume and Issue: 10
Published: April 25, 2022
Graphical Abstract
Language: Английский
Citations
73
Journal of Bioresources and Bioproducts, Journal Year: 2023, Volume and Issue: 8(2), P. 162 - 175
Published: Jan. 20, 2023
Carbon dots (CDs) have gained unprecedented attention as a novel luminescent zero-dimensional carbon nanomaterial owing to their diverse industrial applications. Herein, we reported the sustainable synthesis of fluorescent CDs from papaya peel waste, acting natural originator. As-prepared and reduced graphene oxide (RGO) were fabricated in composites through facile one-step hydrothermal method. Synthesized RGO/CDs (RC) nanocomposites characterized using spectroscopic, diffraction, electron-microscopic techniques. Nanocomposites with variable RGO CD mass ratios tested for photodegradation textile dye methylene blue (MB). The highest photocatalytic activity (degradation efficiency 87% 135 min) was obtained nanocomposite containing 2꞉1 ratio (RC2). sheets acted media electron acceptors, promoting fast transfer separation photoinduced electrons during excitation, thus preventing recombination holes. Based on agar well diffusion assay, exhibited excellent antibacterial than other materials against Bacillus subtilis (Gram-positive) Pseudomonas aeruginosa (Gram-negative) bacterium. largest inhibition zone area (22 mm), i.e., antimicrobial activity, Gram-positive strains. Taken together, synergistic effect enhanced performance synthesized material.
Language: Английский
Citations
73
Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 413, P. 137474 - 137474
Published: May 12, 2023
Language: Английский
Citations
63
Molecules, Journal Year: 2023, Volume and Issue: 28(4), P. 1805 - 1805
Published: Feb. 14, 2023
Carbon-based nanomaterials (CBM) have shown great potential for various environmental applications because of their physical and chemical properties. The unique hybridization properties CBMs allow the tailored manipulation structures morphologies. However, owing to poor solar light absorption, rapid recombination photogenerated electron-hole pairs, pristine carbon materials typically unsatisfactory photocatalytic performances practical applications. main challenge in this field is design economical, environmentally friendly, effective photocatalysts. Combining carbonaceous with semiconductors different results carbon-based catalysts, which offers a promising approach achieving efficient application. Here, we review contribution dimensions, catalytic removal organic pollutants from wastewater by catalyzing Fenton reaction processes. This review, therefore, aims provide an appropriate direction empowering improvements ongoing research work, will boost future contribute overcoming existing limitations field.
Language: Английский
Citations
51
Carbon Resources Conversion, Journal Year: 2023, Volume and Issue: 6(4), P. 274 - 286
Published: April 14, 2023
This study focused on green-synthesized magnetite/carbon dots nanocomposites (GS-Fe3O4/Cdots) utilizing Moringa oleifera leaf extract and watermelon peel waste for rapid degradation of methylene blue (MB) dye. Co-precipitation hydrothermal method were used to synthesize GS-Fe3O4 Cdots, respectively. In addition, the sonication was link Cdots Fe3O4 surface. X-ray diffraction spectrum GS-Fe3O4/Cdots inform cubic inverse spinel has crystallite size in range 10.1–7.2 nm. The also decreased with increase concentration. transmission electron microscope showed most uniform at around 13.4 functional group Fe-O detected nanocomposites, proof that still exists after fabrication. presence C = C, C-O, C-O-C indicates existence surface Fe3O4. addition affected saturation magnetization coercivity value 29.2 – 38.3 emu/g 59–65 Oe, respectively, which a good magnetic properties. As an organic dye, MB photocatalytic process under UV irradiation. efficiency raised 98% 30 min process. magnetically separable capability makes could be recycled reused three times high degradation. Furthermore, potential as low-cost environmentally friendly reusable photocatalyst wastewater
Language: Английский
Citations
47
Materials Advances, Journal Year: 2023, Volume and Issue: 4(18), P. 3951 - 3966
Published: Jan. 1, 2023
The present review summarizes the development of plant derived CQDs, synthesis methods, modification strategies, characterization techniques, properties, and application CQDs for advanced bio-imaging.
Language: Английский
Citations
45