NdCoO3 nanostructures as promising candidate photocatalysts for boosting visible-light-driven photocatalytic degradation of organic pollutants

Kianipour, Salimeh; Razavi, Fatemeh Sadat; Waleed, Ibrahem; Izzat, Samar Emad; Farhan, Issa; Hussein, Taghreed.S.; Heydaryan, Kamran; Salavati‐Niasari, Masoud

doi:10.1016/j.jsamd.2022.100506

Cited by 3 publications

(3 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are various methods for removing pollutants from water, including chemical oxidation, surface adsorption, ion exchange, filtering, and photocatalysis [3] . Among the mentioned methods, the advanced oxidation process or photocatalytic activity based on semiconductors or metal oxides is a promising, effective, clean, environmentally friendly, and low‐cost method that can remove and decompose inorganic pollutants under visible light [4] . One of the toxic and dangerous pollutants in water is hexavalent chromium (Cr(VI)) [5] .…”

Section: Introductionmentioning

confidence: 99%

“…[3] Among the mentioned methods, the advanced oxidation process or photocatalytic activity based on semiconductors or metal oxides is a promising, effective, clean, environmentally friendly, and low-cost method that can remove and decompose inorganic pollutants under visible light. [4] One of the toxic and dangerous pollutants in water is hexavalent chromium (Cr-(VI)). [5] Hexavalent chromium is one of the environmental concerns due to its toxicity and mobility, and its removal from industrial wastewater is very challenging.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Construction of a Ce‐UiO‐66/MCo₂O₄ Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanism

Hosseinpour

Safarifard

2023

ChemPhotoChem

View full text Add to dashboard Cite

Heterojunction engineering in catalyst structures is a promising approach to solve some restrictions in photocatalyst design, such as a narrow photoabsorption range and rapid recombination of photogenerated charge carriers. In this work, MCo2O4 (M=Mn, Zn, Fe) was synthesized using a template method. The porous MCo2O4 was composited by Ce‐UiO‐66 to form a heterojunction structure. The resultant material Ce‐UiO‐66/MCo2O4 had a hierarchically porous architecture and was used as a photocatalyst for Cr(VI) reduction. The coupling of Ce‐UiO‐66 and MCo2O4 resulted in a p‐n junction mechanism for charge carrier transfer. The Ce‐UiO‐66/MCo2O4 heterojunctions exhibited high Cr(VI) reduction ability under visible light irradiation over 120 min. The highest Cr(VI) photoreduction rate of the heterojunction is 14 times that of Ce‐UiO‐66. The binary heterojunction maintains high photoreduction efficiency (100 %) of Cr(VI) after four cycling tests showing excellent photocatalytic stability.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Construction of a Ce‐UiO‐66/MCo₂O₄ Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanism

Hosseinpour

Safarifard

2023

ChemPhotoChem

View full text Add to dashboard Cite

show abstract

“…In recent years, fascinating structural transitions, transport properties, and large α of LnCoO 3 [7][8][9][10][11][12][13][14][15][16][17][18][19] series have attracted the scientists. Furthermore, these compounds have gained attention due to high temperature oxidation resistance and simple synthesis technique.…”

Section: Introductionmentioning

confidence: 99%

A. K. Saran on Modernity, Indian Tradition and Sociology in India

Pandey

2023

Indian Sociology

View full text Add to dashboard Cite

The presence of complexity in the electronic structure of strongly correlated electron system NdCoO3 (NCO) have sparked interest in the investigation of its physical properties. Here, we study the the Seebeck coefficient (α) of NCO by using the combined experimental and DFT+U based methods. The experimentally measured α is found to be ∼ 444 µV /K at 300 K, which decreases to 109.8 µV /K at 600 K. In order to understand the measured α, we have calculated the PDOS and band structure of the NCO. Furthermore, the calculated occupancy of 6.4 for Co 3d orbitals and presence of large unoccupied O 2p states indicate the covalent nature of the bonding. Apart from this, the maximum effective mass is found to be 36.75 (28.13) for the spin-up (dn) channel in conduction band indicates the n-type behaviour of the compound in contrast to our experimentally observed p-type behaviour. While, the calculated α at the temperature-dependent chemical potential (µ) at 300 K shows the p-type behaviour of the compound. Fairly good agreement is seen between the calculated and measured values of α at U f f = 5.5 eV and U dd = 2.7 eV. The maximum power factor (PF) is found to be 47.6 (114.4) × 10 14 µW K −2 cm −1 s −1 at 1100 K, which corresponds to p (n)-type doping of ∼ 1.4 (0.7) × 10 21 cm −3 . This study suggests the importance of strong on-site electron correlation in understanding the thermoelectric property of the compound.

show abstract

Status of rare-earth perovskite catalysts in environmental applications

Li,

Gong,

et al. 2024

Aust. J. Chem.

View full text Add to dashboard Cite

Rare-earth perovskite oxides have become a research hotspot in the fields of environment and energy owing to their structural tunability, excellent redox properties, high stability and high catalytic activity. Researchers have designed and developed different rare-earth perovskite catalysts for tackling environmental pollutants in recent years. This review summarizes recent research progress on rare-earth perovskite catalysts in the catalytic oxidation and photocatalytic degradation of pollutants, gas sensing of volatile organic compounds and photocatalytic water splitting for hydrogen production and carbon dioxide reduction and conversion, and summarizes the mechanism of these reactions. It also discusses in detail the relationship between structural modification, synthesis process and the physical–chemical properties of the catalysts. Finally, the challenges with rare-earth chalcocite catalysts in the field of environment and energy are discussed.

show abstract

NdCoO3 nanostructures as promising candidate photocatalysts for boosting visible-light-driven photocatalytic degradation of organic pollutants

Cited by 3 publications

References 39 publications

Construction of a Ce‐UiO‐66/MCo₂O₄ Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanism

Construction of a Ce‐UiO‐66/MCo₂O₄ Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanism

A. K. Saran on Modernity, Indian Tradition and Sociology in India

Status of rare-earth perovskite catalysts in environmental applications

Contact Info

Product

Resources

About

NdCoO3 nanostructures as promising candidate photocatalysts for boosting visible-light-driven photocatalytic degradation of organic pollutants

Cited by 3 publications

References 39 publications

Construction of a Ce‐UiO‐66/MCo2O4 Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanism

Construction of a Ce‐UiO‐66/MCo2O4 Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanism

A. K. Saran on Modernity, Indian Tradition and Sociology in India

Status of rare-earth perovskite catalysts in environmental applications

Contact Info

Product

Resources

About

Construction of a Ce‐UiO‐66/MCo₂O₄ Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanism

Construction of a Ce‐UiO‐66/MCo₂O₄ Heterojunction for Photocatalytic Cr(VI) Detoxification Through a p‐n Junction Formation Mechanism