MXene is deemed to be one of the best attentive materials in an extensive range of applications due to its stupendous optical, electronic, thermal, and mechanical properties. Several MXene-based nanomaterials with extraordinary characteristics have been proposed, prepared, and practiced as a catalyst due to its two-dimensional (2D) structure, large specific surface area, facile decoration, and high adsorption capacity. This review summarizes the synthesis and characterization studies, and the appropriate applications in the catalysis field, exclusively in the energy storage systems. Ultimately, we also discussed the encounters and prospects for the future growth of MXene-based nanomaterials as an efficient candidate in developing efficient energy storage systems. This review delivers crucial knowledge within the scientific community intending to design efficient energy storage systems.
In
this work, the green synthesis of highly fluorescent carbon
quantum dots (CQDs) with an efficient quantum yield of 17.98% using
sugarcane bagasse pulp as the precursor was conducted by a hydrothermal
technique. The high-resolution transmission electron microscopy analysis
revealed that the CQDs were competently monodispersed with the particle
size ranging between 0.75 and 2.75 nm. The structural properties of
CQDs were investigated using X-ray diffraction, Fourier transform
infrared, and X-ray photoelectron spectroscopy analyses. The UV–visible
spectrum showed two absorption peaks due to the aromatic CC
transitions of π–π* and CO transitions
of n−π*. The fluorescence spectrum of CQDs displayed
a strong blue emission. However, the first-ever of its kind, sugarcane
industrial solid waste carbon quantum dots caused significant orders
to obey the enhancement of the third-order nonlinearity (χ(3)) when compared with other carbon dots (CDs). The calculated
nonlinear optical (NLO) parameters such as n
2, β, and χ(3) were 1.012 × 10–8 cm2/W, 2.513 × 10–4, and 3.939 × 10–7 esu, respectively. The
figures of merit were evaluated to be W = 6.6661
and T = 0.0132, which greatly fulfilled the optical
switching conditions. Besides, the antibacterial activities of CQDs
were screened against aquatic Gram-positive (Benthesicymus
cereus and Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa, Vibrio cholerae, and Escherichia coli) microbial organisms. Our findings,
however, indicate that synergistic sugarcane industrial waste CQDs
are promising materials for the functioning of NLO devices, bioimaging,
and pharmaceutical applications.
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