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One‐step ultrasonic production of the chitosan/lactose/ g‐C 3 N 4 nanocomposites with lactose as a biological capping agent: Photocatalytic activity study
Author(s) -
Karimi Mohammad Ali,
Ranjbar Mehdi,
Mohadesi Alireza
Publication year - 2021
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.202000496
Subject(s) - methyl orange , nanocomposite , chemistry , chitosan , lactose , transmission electron microscopy , nanomaterials , scanning electron microscope , fourier transform infrared spectroscopy , nuclear chemistry , chemical engineering , particle size , photocatalysis , spectroscopy , analytical chemistry (journal) , nanotechnology , materials science , organic chemistry , composite material , catalysis , physics , engineering , quantum mechanics
In this work, the basic and applied purpose was to synthesize and modify chitosan/lactose nanocomposites with g‐C 3 N 4 structures using the ultrasonic‐assisted electrospinning method. We evaluated effective photocatalytic of chitosan/lactose/g‐C 3 N 4 nanocomposites to photodegrade methyl red, methyl orange, and methyl blue in different nanophotocatalyst concentration such as 0.1–1%g/L in pH 6.5. According to the experimental results, it was found that nanocomposites in different concentrations of g‐C 3 N 4 had high potential in degradation of organic compounds. The lactose structures as a green capping agent and stabilizer modified chitosan surfaces to produce uniform particle size distribution. Different lactose concentrations like 0.1–0.5%wt/vol indicate a particle size range between 270 and 422 nm. The obtained as‐synthesized nanomaterials were characterized by scanning electron microscope, energy‐dispersive X‐ray spectroscopy, transmission electron microscopy, X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy, and UV–Vis spectroscopy. The crystalline size and diameter (Dc) of the nanostructures can be determined through XRD data with ∼90–110 nm. Results show that photocatalytic activity in low pH is more increased than other values due to more electron–hole pairs formed on the surface.