Construction of MoS2/CdS/TiO2 ternary composites with enhanced photocatalytic activity and stability

Sun, Mingxuan; Wang, Ying; Fang, Yalin; Sun, Shanfu; Yu, Zhishui

doi:10.1016/j.jallcom.2016.05.189

Cited by 85 publications

(25 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Advanced Oxidation Processes (AOPs) are conceived as one of the most attracting solutions because of their rapidity and non-selective degradation power towards a wide range of organic compounds. 8 TiO 2 is one of the best photocatalytic materials due its stability, non-toxicity, low cost and high performance, 9 but its band gap ($3.2 eV) and higher recombination rate restricting its usage in practical applications. 10 Doping TiO 2 matrix with metal and non-metal dopants has attracted signicant attention since they can exhibit higher photo-catalytic activity and unique characteristics.…”

Section: Introductionmentioning

confidence: 99%

Efficient detoxification of triclosan by a S–Ag/TiO₂@g-C₃N₄hybrid photocatalyst: process optimization and bio-toxicity assessment

et al. 2019

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Efficient detoxification of triclosan by a S–Ag/TiO₂@g-C₃N₄hybrid photocatalyst: process optimization and bio-toxicity assessment

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The chemical states of Ti, O and Cu elements, their corresponding binding energies and the ratios for C0, C0.25, C0.5, C1 and C2.5 are listed in Table . The XPS spectrum of Ti 2p can be fitted with two peaks, and the chemical states correspond to TiO 2 and TiO x , respectively . The XPS spectrum of O 1s can be fitted with three peaks, and the chemical states correspond to TiO 2 , OH and O v , respectively .…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic properties of CuO/(001)‐TiO₂ composites synthesized by the vapor–thermal method

Sun

Zhang

Liu

et al. 2019

Applied Organom Chemis

View full text Add to dashboard Cite

Composites of (001)-face-exposed TiO 2 ((001)-TiO 2 ) and CuO were synthesized in water vapor environment at 250°C with various Cu/Ti molar ratios (R Cu/Ti ).The resulting CuO/(001)-TiO 2 composites were characterized using a variety of techniques. The synthesis under high-temperature vapor allows close contact between CuO and (001)-TiO 2 , which results in the formation of heterojunctions, as evidenced by the shift of valence band maximum towards the forbidden band of TiO 2 . An appropriate ratio of CuO can enhance the absorption of visible light and promote the separation of photogenerated carriers, which improve the photocatalytic performance. The degradation rate constant K app increased from 5.5 × 10 −2 to 8.1 × 10 −2 min −1 for R Cu/Ti = 0.5.Additionally, the results showed that superoxide radicals ( • O 2 − ) play a major role in the photocatalytic degradation of methylene blue.

show abstract

“…[41] The XPS spectrum of Ti 2p can be fitted by two peaks and the CSs correspond to TiO2 and TiOx. [42,43] The XPS spectrum of O 1s can be fitted by two peaks as well and the CSs correspond to TiO2 and -OH. [44,45] The CS of the Ti and O elements, their corresponding binding energies (BE), and the ratios for 1-S0, 1-S2, and 1-S5 are listed in Table 3.…”

Section: Resultsmentioning

confidence: 99%

Greatly improved adsorption and degradation by S-doped (001)-TiO₂ via the vapour-thermal method

Sun¹,

Zhang²,

Sun³

et al. 2019

Preprint

View full text Add to dashboard Cite

In this work, sulfur (S) doped (001)-face exposed TiO2 was synthesized via the vapor-thermal method at 180 °C or 250 °C, with an S/Ti molar ratio R S/Ti of 0, 0.5, 1, 2, 3, 4, and 5. The S-doped samples at 250 °C exhibited significantly improved photocatalytic performance. The effects of S doping were as follows: (1) The S element exhibits different chemical states in the samples with different R S/Ti. Specifically, it exists in the form of S2− replacing O2− at R S/Ti = 1, and S6+ replacing Ti4+ at R S/Ti ≥ 2. As a result, S doping causes a lattice distortion because the ionic radii of S2− and S6+ differ from that of the O2− and Ti4+. (2) S-doping increases the adsorption coefficient A e for methylene blue (MB) from 0.9% to 68.5% due to the synergistic effects of the oxygen vacancies, the SO4 2− adsorbed on the TiO2 surface, and the pore size. (3) S-doping increases the MB degradation rate from 6.9 × 10−2 min−1 to 18.2 × 10−2 min−1 due to an increase in the amount of •OH and •O2− radicals.

show abstract

Construction of MoS2/CdS/TiO2 ternary composites with enhanced photocatalytic activity and stability

Cited by 85 publications

References 33 publications

Efficient detoxification of triclosan by a S–Ag/TiO₂@g-C₃N₄hybrid photocatalyst: process optimization and bio-toxicity assessment

Efficient detoxification of triclosan by a S–Ag/TiO₂@g-C₃N₄hybrid photocatalyst: process optimization and bio-toxicity assessment

Photocatalytic properties of CuO/(001)‐TiO₂ composites synthesized by the vapor–thermal method

Greatly improved adsorption and degradation by S-doped (001)-TiO₂ via the vapour-thermal method

Contact Info

Product

Resources

About

Construction of MoS2/CdS/TiO2 ternary composites with enhanced photocatalytic activity and stability

Cited by 85 publications

References 33 publications

Efficient detoxification of triclosan by a S–Ag/TiO2@g-C3N4hybrid photocatalyst: process optimization and bio-toxicity assessment

Efficient detoxification of triclosan by a S–Ag/TiO2@g-C3N4hybrid photocatalyst: process optimization and bio-toxicity assessment

Photocatalytic properties of CuO/(001)‐TiO2 composites synthesized by the vapor–thermal method

Greatly improved adsorption and degradation by S-doped (001)-TiO2 via the vapour-thermal method

Contact Info

Product

Resources

About

Efficient detoxification of triclosan by a S–Ag/TiO₂@g-C₃N₄hybrid photocatalyst: process optimization and bio-toxicity assessment

Efficient detoxification of triclosan by a S–Ag/TiO₂@g-C₃N₄hybrid photocatalyst: process optimization and bio-toxicity assessment

Photocatalytic properties of CuO/(001)‐TiO₂ composites synthesized by the vapor–thermal method

Greatly improved adsorption and degradation by S-doped (001)-TiO₂ via the vapour-thermal method