Nonhydrolytic sol-gel in-situ synthesis of novel recoverable amorphous Fe2TiO5/C hollow spheres as visible-light driven photocatalysts

Exploring the impact of calcination parameters on the crystal structure, morphology, and optical properties of electrospun Fe2TiO5 nanofibers

“…Recently, nanostructured Fe 2 TiO 5 (pseudobrookite, or iron-titanate, with a band gap of 2.1 eV) has gained a lot of attention due to its good charge separation and transport properties, photochemical and electrochemical stability, nontoxicity, and low-cost production. [9][10][11] Different methods have been used to obtain Fe 2 TiO 5 in powder or lm form, pure or as a nanocomposite to achieve efficient photoelectrochemical performance for solar energy conversion, 9,[11][12][13][14][15][16] visible light photocatalysis, [17][18][19][20] or gas sensing ability. 10,21,22 Courtin et al reported on a multi-layer template-directed sol-gel technique for the synthesis of mesoporous nanostructured Fe x -TiO 2 lms consisting of three phases: pseudobrookite, hematite, and anatase.…”

Comparison of Fe2TiO5/C photocatalysts synthesized via a nonhydrolytic sol–gel method and solid-state reaction method

“…6a presents the DTA-TG curves of xerogel using FeOH(CH 3 COO) 2 as iron precursor. A sharp exothermic peak in the DTA curve at 294 C is related with the carbonization of organic residues and the volatilization with burning of part residual organic group, 27 corresponding to a mass loss of 35.28% in the TG curve. In addtion, the phase transition from amorphous Fe 2 TiO 5 to crystallized Fe 2 TiO 5 contributes to the small exotherm at 519 C (shown in formula (4)), which is supported by XRD results in Fig.…”

“…25,26 In our recent study, the in situ carbon was rst introduced by NHSG method into the Fe 2 TiO 5 photocatalyst. 27 The Fe 2 TiO 5 /C composite has exhibited superior photocatalytic activity in comparison with Fe 2 TiO 5 . This work aims at exploring the effect of doping methods and uniformity for carbon on the photocatalytic efficiency by the comparison of Fe 2 TiO 5 /C (N) and Fe 2 TiO 5 /C (S) .…”

Photocatalytic Activity of S-Scheme Heterostructure for Hydrogen Production and Organic Pollutant Removal: A Mini-Review

“…The S-scheme heterostructure has emerged as a suitable solution for the limitations induced by the previous photoactive mechanisms that use two or more semiconductors, coupled together using hydrothermal [ 30 ], solvothermal [ 31 ], sol–gel [ 32 ], precipitation [ 33 ], reduction [ 34 ], or other methods. Among these heterojunctions, a type-I heterostructured photocatalyst is not suitable to efficiently reduce the photogenerated charge carriers recombination because of an embedded band alignment established between the semiconductors components [ 35 , 36 , 37 ].…”

“…The built-in electric field can benefit from the elimination of comparatively useless photogenerated holes in the valence band and electrons in the conduction band, which can not participate in the formation of oxidative species due to the lower potential of the originating band energy. The remaining useful charge carriers have high redox The S-scheme heterostructure has emerged as a suitable solution for the limitations induced by the previous photoactive mechanisms that use two or more semiconductors, coupled together using hydrothermal [30], solvothermal [31], sol-gel [32], precipitation [33], reduction [34], or other methods. Among these heterojunctions, a type-I heterostructured photocatalyst is not suitable to efficiently reduce the photogenerated charge carriers recom-bination because of an embedded band alignment established between the semiconductors components [35][36][37].…”