TiO2/graphene oxide nanocomposite with enhanced photocatalytic capacity for degradation of 2,4-dichlorophenoxyacetic acid herbicide

Fabrication of Graphene-Based TiO2@CeO2 and CeO2@TiO2 Core–Shell Heterostructures for Enhanced Photocatalytic Activity and Cytotoxicity

“…Figure represents the images that are attained employing FESEM of nanoparticles, core–shell nanospheres, and ternary nanocomposites of (a) TiO 2 , (b) CeO 2 , (c) CeO 2 @TiO 2 , (d) TiO 2 @CeO 2 , (e) rGO-CeO 2 @TiO 2 , and (f) rGO-TiO 2 @CeO 2 . As shown in Figure a, TiO 2 nanoparticles have demonstrated a good structural uniformity while the edges and the grains are obviously spherical, and the TiO 2 nanoparticles showed uniform distribution without any agglomeration. , Moreover, it was measured that the TiO 2 nanoparticles have an average diameter of around 21.81 nm (Figure S1a). As presented in Figure b and S1b, the CeO 2 nanocubes had a smooth surface while an average size about 30.97 nm.…”

“…As shown in Figure 1 a, TiO 2 nanoparticles have demonstrated a good structural uniformity while the edges and the grains are obviously spherical, and the TiO 2 nanoparticles showed uniform distribution without any agglomeration. 59 , 60 Moreover, it was measured that the TiO 2 nanoparticles have an average diameter of around 21.81 nm ( Figure S1a ). As presented in Figure 1 b and S1b , the CeO 2 nanocubes had a smooth surface while an average size about 30.97 nm.…”

Synthesis of a plasmonic AgCl and oxygen-rich Bi24O31Cl10 composite heterogeneous catalyst for enhanced degradation of tetracycline and 2,4-dichlorophenoxy acetic acid

“…Researchers have identified that a range of intermediate compounds are produced when 2,4-D and TC are degraded using advanced oxidation processes. 2,4-dichlorophenol, 2-chlorophenol, 3,5-dichlorobenzene-1,2-diol, 2-chlorobenzene-1,4-diol, succinic acid and acetic acid are the major intermediates formed through photodegradation of 2,4-D. 50–52 The intermediates produced during the degradation of tetracycline (C 22 H 24 N 2 O 8 ) include: C 22 H 26 N 2 O 9 , C 22 H 23 NO 9 , C 12 H 12 O 4 and carboxylic acid. 53,54 Although, 2,4-D and TC were not completely mineralised in the experimental time, it is believed that with a longer residence time, the intermediates will eventually be broken down into CO 2 and water.…”