A novel TiO2-x/TiN@ACB composite for synchronous photocatalytic Cr(VI) reduction and water photothermal evaporation under visible/infrared light illumination

Incorporation of Cu5FeS4 QDs with Abundant Oxygen Vacancy TiO2 QDs/TiO2 OVs: Double S-Scheme Photocatalysts for Effectual N2 Conversion to NH3 under Simulated Solar Light

“…As a result, by formation of a double S-scheme mechanism, the electrons with more reducing potential are stored in TiO 2 QDs and the holes with more oxidizing potential are retained on Cu 5 FeS 4 and TiO 2 OVs. Besides, due to the formation of a mid band state, below the CB of TiO 2 OVs, a significant number of charges are generated under visible light and trapped . Thereafter, the collected electrons in the CB of TiO 2 QDs together with the H + ions, which are formed from the oxidation of H 2 O molecules in the VB of Cu 5 FeS 4 and TiO 2 OVs, reduce N 2 molecules in the atmosphere to ammonia.…”

“…Moreover, on the other side, OVs, a significant number of charges are generated under visible light and trapped. 57 Thereafter, the collected electrons in the CB of TiO 2 QDs together with the H + ions, which are formed from the oxidation of H 2 O molecules in the VB of Cu 5 FeS 4 and TiO 2 OVs, reduce N 2 molecules in the atmosphere to ammonia. Briefly, the developed S-scheme mechanism between components overcomes the limitations of the Z-scheme and type-II heterojunction, including the lower redox potential of electrons and holes and insignificant segregation of charge carriers.…”

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO2 composite under simulated sunlight illumination

“…This further demonstrates the successful incorporation of TiO 2 and BC, which is consistent with the previous reports. 24,25 3.1.7. Electrochemical analysis.…”

“…[20][21][22][23] Photocatalysis can fully use solar energy to reduce Cr(VI) to trivalent chromium [Cr(III)] in wastewater. 24,25 To date, numerous photocatalysts such as Fe NPs @Fe SAs NC, ZnIn 2 S 4 /CdS, CoO@MnCo 2 O 4 , and CeO 2 /BiOX have been developed. [26][27][28][29] Among these, titanium dioxide (TiO 2 ) has received considerable attention due to its excellent photocatalytic performance.…”

Enhanced Cr(VI) Photocatalysis Reduction by Layered N‐doped TiO2 Sheets from Template Free Solvothermal Method

“…* Adsorption [35] TiO 2 /GO 0.03 10 0.03 28 % 0.084 0.047 2022 [36] Y-BiVO 4 -TiO 2 0.06 75 0.1 70 % 5.25 1.46 2022 [37] TiO 2 /rGO 0.3 100 0.15 100 % 15 0.83 2022 [38] AC/TiO 2 0.065 2.95 0.1 94.7 % 0.28 0.072 2021 [29] TGN 0.01 10 0.05 57 % 0.29 0.48 2020 [39] TiO 2 -HT-300 0.05 20 0.1 89 % 1.79 0.59 2019 [31] C-SO 3 H/CN-TiO 2 0.05 10 0.05 75 % 0.375 0.125 2019 [40] TiO 2 @GC 0.03 40 0.05 60 % 1.2 0.67 2017 [2c] # Removal rate of Cr(VI) per unit photocatalyst mass and per minutes (mg • g À 1 • min À 1 ). (1)…”