Novel Bi₂O₂CO₃/polypyrrole/g-C₃N₄nanocomposites with efficient photocatalytic and nonlinear optical properties

Abstract

A series of novel Bi2O2CO3/polypyrrole/g-C3N4 nanocomposites loaded with different contents of g-C3N4 was demonstrated for recyclable photocatalysis and nonlinear optical applications.

Nonlinear Optical Properties of Novel Polypyrrole Derivatives Bearing Different Aromatic Segments

“…In contrast, valley-shaped curves indicate the occurrence of nonlinear absorption and optical limiting behaviors. The depth of the valley in the Z-scan curves correlates with the extent of optical limiting [21] [22]. The decrease in normalized transmittance of PPy-3 with increasing fluence exceeds that all of other samples in the present study.…”

Au and Co3O4 anchored Bi2WO6 with enhanced electron paramagnetic resonance, surface plasmon resonance, nonlinear and magnetic properties

“…Figure 7A displays the open‐aperture Z‐scan of three samples. It is clear to see that the CBWOA displayed a much deeper valley with positive nonlinear absorption and a typical saturation, indicating a superior optical limiting behavior 14–16 . On the contrary, CBWO and pure host displayed much weak even almost no nonlinear signals.…”

“…Therefore, the combination of nonlinear and magnetic mechanisms arises interesting features to both properties 11–13 . At the same time, the fast development of laser technology demands nonlinear materials with ferromagnetism 14–17 . The magnetic Co ions can compensate the nonmagnetic W 6+ cations, strengthening the conjunction with the 6s2 lone pairs of Bi 3+ and presenting stronger magnetic behavior.…”

Porphyrin and Phthalocyanine Covalently Functionalized Graphene and Carbon Nanotube Nanohybrids for Optical Limiting

“…This is because nonlinear optics impacts a wide range of technical fields, including X-rays, quantum optics, optical communications, fiber optics, ultrafast lasers, spectroscopy, photorefractivity, liquid crystals, polymers, semiconductors, organics, switching, ultraviolet, telecommunications, and signal processing [4,5]. To further advance the performance of optical materials and devices, researchers have sought for lots of novel materials with improved nonlinear optical properties, including inorganic semiconductors, organic molecules, polymeric systems, and other nanomaterials [6,7]. The latter, specifically, are of great interest because they present high nonlinear optical properties combined with versatility of available routes of synthesis, used to alter and optimize nanostructure to maximize nonlinear responses and other properties [8].…”