Perovskite Strontium Doped Rare Earth Manganites Nanocomposites and Their Photocatalytic Performances

Abstract

Studying catalysts in situ is an important topic that helps us to understand their surface structure and electronic states in operation. Three types of materials are used in the degradation of organic matter, which has applications in the environmental remediation and self-cleaning surfaces. The technique is widely known but still hampered by one significant limitation. The materials generally absorb ultra violet UV light but we need to develop active materials for visible light. Utilizing the sunlight efficiently for solar energy conversion is an important demand in the present time. The research on visible-light active photocatalysts attracted a lot of interest. The perovskite-like compounds are found to be active catalysts for the oxidation of carbon monoxide. In the present chapter, we will focus on the application of the nano-sized strontium doped neodymium manganites within perovskite like structure as photocatalysis and studying their photocatalytic performance.

Doping Strontium into Neodymium Manganites Nanocomposites for Enhanced Visible light Driven Photocatalysis

“…The rare earth manganites is formed in the well-known perovskites crystal structure where they does not crystalize only in the cubic crystal system but also in the form of the orthorhombic, rhombohedral, hexagonal or monoclinic depends on the synthesis procedure and heat process. The different crystal structure systems of rare earth manganites were reported in different work, where they could be formed as cubic, orthorhombic, rhombohedral, hexagonal or monoclinic 1,3,9–16 . In this work, the effect 48 .…”

“…The optimized band gap energy in such oxides, the doped divalent element rare-earth transition metal oxides of the perovskite-like structure, explains and enhances photogeneration of both electrons and holes and hence the separation of charge carriers 43 . More efforts and intensive research have been done and still now we need more activities in order to tuning their optical and electrical properties of these materials that may help us to control of their rational design structure by the cationic replacements in ABO 3 pervoskite 3 . The promising photocatalytic performance of the perovskite compounds are observed as a result adapting their bandgap values to the produced visible-light absorption as well as the potentials of band edge to tailor the requirements of particular photocatalysis.…”

Growth and Structural Characterization of h-LuMnO3 Thin Films Deposited by Direct MOCVD

“…The group of Fujimura et al were the first to report the deposition of h -YMnO 3 thin films on MgO(111), ZnO(0001), Al 2 O 3 (0001) sapphire, and Pt(111)\MgO (111) using RF magnetron sputtering (RFMS) [ 20 , 21 , 22 , 23 ]. Subsequently, other studies were made on h -YMnO 3 grown on Pt\Al 2 O 3 (0001) and on Pt\Y 2 O 3 \Si(111) structures using molecular beam epitaxy (MBE) [ 24 ].…”

“…This is especially the case in the present time, when the development of new and efficient solar energy conversion technologies is crucial from an environmental, social, and economic point of view. The group of Fujimura et al were the first to report the deposition of h-YMnO 3 thin films on MgO(111), ZnO(0001), Al 2 O 3 (0001) sapphire, and Pt(111)\MgO (111) using RF magnetron sputtering (RFMS) [20][21][22][23]. Subsequently, other studies were made on h-YMnO 3 grown on Pt\Al 2 O 3 (0001) and on Pt\Y 2 O 3 \Si(111) structures using molecular beam epitaxy (MBE) [24].…”

Interfacial coupling effects on adsorptive and photocatalytic performances for photoresponsive graphene-wrapped SrTiO3@Ag under UV–visible light: experimental and DFT approach

“…Furthermore, in regard of crystallographic texture, SrTiO 3 's cubic perovskite structure is more stable than TiO 2 . (A. Abdel-Latif 2019). It has been reported that pure SrTiO 3 (Huang et al 2014;Xie et al 2018;Gao et al 2018) or ions doped SrTiO 3 (Konta et al 2004;Wu and He 2018a;Li et al 2020) can show effective photocatalysis of organic pollutants under UV or Visible light irradiation.…”