Enhance the photocatalytic activity for the degradation of organic contaminants in water by incorporating TiO2 with zero-valent iron

Iron Modified Titanate Nanotube Arrays for Photoelectrochemical Removal of E. coli

“…Above findings are different to the observations of Fe 0 that showing the characteristic peaks at 707.8 and 720.2eV for Fe 2 p 3/2 and 2 p 1/2 , respectively, in Wang et al (2018) [ 41 ]. Hsieh et al (2010) also indicated that two major peaks at 707.0 and 719.1 eV are representing the Fe 2 p 3/2 and 2 p 1/2 , corresponding to the zero-valent iron [ 42 ]. Hence, we confirmed the state of Fe in Fe/TNAs is Fe 3+ instead of Fe 0 as the findings in Figure 3 c. Figure 3 d shows that O has a characteristic peak at 530 eV, which represents the formation of Ti or Fe oxides [ 43 ].…”

Transport Behavior of Engineered Nanosized Photocatalytic Materials in Water

“…Pt, Au [49,50], Ag [51,52], Cu [53], Pd [54] Zero-valent iron (ZVI) [55] Oxides NiO [56], MnO 2 [57,58]…”

Synthesis and photocatalytic properties of three dimensional laminated structure anatase TiO2/nano-Fe0 with exposed (001) facets

“…50,51 Many results show that the combination of nano-Fe 0 and TiO 2 can effectively improve the stability of nano-Fe 0 and the dispersion in the water. 52 At the same time, this combination can effectively promote the separation of photogenerated electron holes, enhance the photoelectric effect, and expand the visible light response range. Moreover, in the process of photocatalysis, this combination can not only compensate the consumption of nano-Fe 0 (dynamic circulation reaction mechanism), 53 but also form the Photo-Fenton effect; Fe 3+ ; Fe 2+ ; TiO 2 and H 2 O 2 coexisting in the system will promote the production of hydroxyl radicals under the action of ultraviolet light, so as to improve the photocatalytic activity and pollutant removal rate.…”

“…Moreover, in the process of photocatalysis, this combination can not only compensate the consumption of nano-Fe 0 (dynamic circulation reaction mechanism), 53 but also form the Photo-Fenton effect; Fe 3+ ; Fe 2+ ; TiO 2 and H 2 O 2 coexisting in the system will promote the production of hydroxyl radicals under the action of ultraviolet light, so as to improve the photocatalytic activity and pollutant removal rate. 52,54,55 In this work, we aim to synthesize a highly active composite TiO 2 photocatalyst with (001) facets exposed and visible light response by combining nano-Fe 0 . Therefore, under the action of hydrouoric acid, isobutanol and isopropanol, three dimensional laminated structure anatase TiO 2 /nano-Fe 0 with exposed (001) facets (3D-TiO 2 /nano-Fe 0 ) were synthesized by a two-step solvothermal route and a liquid phase reduction deposition method.…”