g-C3N4/carbon dot-based nanocomposites serve as efficacious photocatalysts for environmental purification and energy generation: A review

Review on augmentation in photocatalytic activity of CoFe2O4 via heterojunction formation for photocatalysis of organic pollutants in water

IOP Conference Series: Materials Science and Engineering

Sustainability criteria for assessing nanotechnology applicability in industrial wastewater treatment: Current status and future outlook.

Photocatalytic degradation of alachlor using type-II CuS/BiFeO3 heterojunctions as novel photocatalyst under visible light irradiation

Different effluents from textile industries which are dumped into the water bodies have been a major concern of the modern world. The uncontrolled discharge of the synthetic textile dyes in water bodies especially have led to serious environmental problems and health hazards. Among the different existing approaches to treat water, photocatalysis is an attractive approach as it uses the inexhaustible and clean solar energy. Considering its ability to absorb in the visible light of solar spectrum, its multiferroic property and its crystal structure, researchers feel BiFeO3 can provide a breakthrough in the treatment of water. In this article, a thorough review is presented on the various attempts done so far on degradation of different synthetic textile dyes solution using BiFeO3 nanostructures.

A review on the visible light active BiFeO3 nanostructures as suitable photocatalyst in the degradation of different textile dyes

The discharges of effluents from the Textile industries contain bleaching and dyeing chemicals which are very harmful to the environment. Thus, managing textile effluents to make zero discharge of ...

Visible light photocatalytic activity of Mn-doped BiFeO3 nanoparticles

Visible light driven photocatalytic property of nickel doped BiFeO3 nanoparticles were explored from the degradation of Acid red-85 dye. Fuel (citric acid) assisted auto-combustion method was adopted for the synthesis of BiFe(1−x)NixO3 (x = 0.25, 0.5, 0.75 and 0.10) nanoparticles. The synthesized particles were characterized by x-ray diffraction, from which reduction in crystallite size has been observed from 57 nm to 28 nm. Lattice parameters also have been calculated for the same which shows an increase in lattice parameters confirming the presence of nickel in the BiFeO3 lattice. Morphological studies were carried out using high resolution scanning electron microscopy on undoped and 10% nickel doped BiFeO3 samples which show a decrease in particle size in the doped sample compared to the bare BiFeO3 similar results have been observed in Transmission Electron Microscopy images. Reduction in the optical band gap from 2.2 eV to 2.02 eV of BiFeO3 compared to 10% Nickel doped bismuth ferrite is observed. Vibrating sample magnetometer studies performed at room temperature indicates that addition of nickel increases both remnant and saturation magnetization to the bismuth ferrite sample thus helping in the removal of photocatalyst after treatment. Photocatalytic study on the Acid red-85 dye by visible light irradiation showed the complete degradation of dye in 40 min. The 10% Nickel doped BiFeO3 showed the best photocatalytic activity. The enhancement in the photocatalytic activity of the doped BiFeO3 is because of efficient charge separation which has been confirmed by photoluminescence studies.

https://iopscience.iop.org/article/10.1088/2053-1591/ab225f/pdf

Photocatalytic degradation of acid red-85 dye by nickel substituted bismuth ferrite nanoparticles

Enhanced visible light photocatalytic activity of magnetic cobalt doped BiFeO3

Multiferroic materials, which show simultaneous ferroelectric and magnetic ordering, exhibit unusual physical properties–and in turn promise new device applications–as a result of the coupling between their dual order parameters BiFeO3 is currently considered the most promising candidate material for device applications of room temperature multiferroics However, its G-type antiferromagnetic behavior and high Neel temperature restrict the use of this material in potential applications We report the synthesis and characterization of a novel Bi2FeNiO6 material for the first time using a citric acid assisted gel combustion technique Magnetization studies reveal that it exhibits ferrimagnetism with Neel temperature around 500 K Differential scanning calorimetry study also reveals a sharp phase transition at 500 K These materials also exhibit good ferroelectric behavior with square type hysteresis with a remanent polarization (Pr) of 128 μC cm−2, saturation polarization (Ps) of 18 μC cm−2 and co

Caroline Ponraj

Papers

A review on the visible light active BiFeO3 nanostructures as suitable photocatalyst in the degradation of different textile dyes

Visible light photocatalytic activity of Mn-doped BiFeO3 nanoparticles

Photocatalytic degradation of acid red-85 dye by nickel substituted bismuth ferrite nanoparticles

Enhanced visible light photocatalytic activity of magnetic cobalt doped BiFeO3

Synthesis and characterization of new Bi2FeNiO6 material using a citric acid assisted gel combustion technique