A novel MIL-125(Ti)-based nanocomposite for enhanced adsorption and catalytic degradation of tetracycline hydrochloride: Synergetic mechanism of calcination and the nitrogen-containing reticulated surface layer

Song, Xiaoli; He, Jialing; Wang, Yu; Wang, Junlong; Zhang, Shuwei

doi:10.1016/j.jcis.2023.05.028

Cited by 25 publications

(1 citation statement)

References 63 publications

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“…This suggests that the chemisorption process plays a dominant role in As(V) adsorption by CuFeS 2. The theoretical As(V) removal capacity ( q e ) of CuFeS 2 calculated from the pseudo-second-order model (5.02 and 20.31 mg/g) aligned well with the experimental observations from batch experiments. Notably, even at a high As(V) concentration of 50 mg/L, a nearly 100% removal efficiency was achieved with prolonged reaction time (Figure S5).…”

Section: Resultsmentioning

confidence: 99%

Solar-Driven Arsenic(V) Transformation, Speciation, and Adsorption on the Chalcopyrite Surface

Ge,

Zheng,

Liu

et al. 2024

ACS EST Water

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Understanding the dynamics of arsenic species (As(V) and As(III)) in water is crucial for mitigating their significant health risks. Here, we demonstrate the exceptional ability of chalcopyrite minerals to convert As(V) into As(III), and achieve 100% removal over a broad range of concentrations (0.005−50 mg/L). This unique process combines adsorption with photocatalytic redox reactions, where As(V) is first adsorbed on the mineral surface and then reduced to As(III) by photogenerated electrons. Density functional theory calculations reveal the "Cu(I)− Fe(III) redox-couple" within chalcopyrite as the key driver of this efficient photocatalysis. This redox-couple exhibits excellent light absorption and excitation dynamics, facilitating the rapid transfer of photogenerated electrons to the Fe site for As(V) reduction. This research unveils a previously unknown pathway for arsenic adsorbed and reduction in the natural environment, potentially impacting our comprehension of the global geochemical cycle of the toxic As element.

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Section: Resultsmentioning

confidence: 99%

Solar-Driven Arsenic(V) Transformation, Speciation, and Adsorption on the Chalcopyrite Surface

Ge,

Zheng,

Liu

et al. 2024

ACS EST Water

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Solar‐Assisted CO₂ Methanation via Photocatalytic Sabatier Reaction by Calcined Titanium‐based Organic Framework Supported RuO_x Nanoparticles

Rueda‐Navarro,

González‐Fernández,

Cabrero‐Antonino

et al. 2024

ChemCatChem

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CO2 reduction by sunlight under mild reaction conditions is a research area of increasing interest expected to favor decarbonization and produce fuels and chemicals in the circular economy. We hereby report on the development of a series of titanium oxide‐based solids produced by calcination of MIL‐125(Ti)‐NH2 decorated with RuOx nanoparticles (1 wt%) material at temperatures from 350 to 650 ºC and used as photocatalysts for CO2 methanation under simulated sunlight irradiation (45 mW/cm2) at < 200 ºC and 1.5 atm total pressure. The material synthesized at 350 ºC produced the highest photoactivity of the series (4.73 mmol g‐1 CH4 at 22 h and an apparent quantum yield at 400, 500 and 750 nm of 0.76, 0.65 and 0.54 %, respectively), comparing favorably with the activities of other MOF‐based materials reported so far. Insights into the material’s photocatalytic performance and a study of the possible reaction pathways during CO2 methanation were obtained by electrochemical impedance, electron spin resonance, photoluminescence and in situ FT‐IR spectroscopies together with transient photocurrent and hydrogen temperature programed desorption measurements. The study showed the possibility of using MOF‐based materials as precursors of metal oxide photocatalysts with enhanced activities for solar‐driven gaseous CO2 photomethanation.

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Co-doped metal–organic framework MIL-125(Ti) derivate for efficient adsorption of tetracycline hydrochloride from water

Nie,

Yang,

Fang

et al. 2023

Applied Surface Science

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A novel MIL-125(Ti)-based nanocomposite for enhanced adsorption and catalytic degradation of tetracycline hydrochloride: Synergetic mechanism of calcination and the nitrogen-containing reticulated surface layer

Cited by 25 publications

References 63 publications

Solar-Driven Arsenic(V) Transformation, Speciation, and Adsorption on the Chalcopyrite Surface

Solar-Driven Arsenic(V) Transformation, Speciation, and Adsorption on the Chalcopyrite Surface

Solar‐Assisted CO₂ Methanation via Photocatalytic Sabatier Reaction by Calcined Titanium‐based Organic Framework Supported RuO_x Nanoparticles

Co-doped metal–organic framework MIL-125(Ti) derivate for efficient adsorption of tetracycline hydrochloride from water

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A novel MIL-125(Ti)-based nanocomposite for enhanced adsorption and catalytic degradation of tetracycline hydrochloride: Synergetic mechanism of calcination and the nitrogen-containing reticulated surface layer

Cited by 25 publications

References 63 publications

Solar-Driven Arsenic(V) Transformation, Speciation, and Adsorption on the Chalcopyrite Surface

Solar-Driven Arsenic(V) Transformation, Speciation, and Adsorption on the Chalcopyrite Surface

Solar‐Assisted CO2 Methanation via Photocatalytic Sabatier Reaction by Calcined Titanium‐based Organic Framework Supported RuOx Nanoparticles

Co-doped metal–organic framework MIL-125(Ti) derivate for efficient adsorption of tetracycline hydrochloride from water

Contact Info

Product

Resources

About

Solar‐Assisted CO₂ Methanation via Photocatalytic Sabatier Reaction by Calcined Titanium‐based Organic Framework Supported RuO_x Nanoparticles