**Indrani Coondoo**

University of Aveiro, Portugal

**1**

Section 1

Photocatalysis

Section 1 Photocatalysis

**3**

**Chapter 1**

**Abstract**

organic pollutants

**1. Introduction**

Significant Role of Perovskite

Materials for Degradation of

The advancement and the use of visible energy in ecological reparation and photodegradation of organic pollutants are being extensively investigated worldwide. Through the last two decades, great exertions have been dedicated to emerging innocuous, economical, well-organized and photostable photocatalysts for ecofriendly reparation. So far, many photocatalysts mostly based on ternary metal oxides and doped with nonmetals and metals with various systems and structures have been described. Among them, perovskite materials and their analogs (layertype perovskites) include an emerged as semiconductor-based photocatalysts due to their flexibility and simple synthesis processes. This book chapter precisely concentrates on the overall of related perovskite materials and their associated systems; precisely on the current progress of perovskites that acts as photocatalysts and ecofriendly reparation; explores the synthesis methods and morphologies of perovskite materials; and reveals the significant tasks and outlooks on the investiga-

**Keywords:** layered-type perovskite materials, photocatalysis, photodegradation,

that points to the power predicament and climate change task. Solar energy consumption is an ecological reconciliation, and then, the chemical change in solar is presence exhaustive, considered throughout global [1, 2]. In general, solar energy is renewed into a wide range of developments, such as degradation of organic pollutants as photocatalysis, splitting of water molecules for producing clean energy, and reduction of CO2 gas [3, 4]. Consuming a similar perception, metal-oxide photocatalysis has also been widely examined for possible exertions in ecological restitution as well as the photodegradation and elimination of organic toxins in the aquatic system [5, 6], decrease of bacterial inactivation [7–9], and heavy metal ions [10–12]. Throughout the earlier few years, excellent applications have been dedicated to evolving well-organized, less expensive, and substantial photocatalysts, particularly those that can become active under visible light such as NaLaTiO6, Ag3PO4/BaTiO3, Pt/SrTiO3, SrTiO3-TiN, noble-metal-SrTiO3 composites, GdCoO3, orthorhombic perovskites LnVO3 and Ln1−xTixVO3 (Ln = Ce, Pr, and Nd), Ca0.6Ho0.4MnO3, Ce-doped BaTiO3, fluorinated Bi2WO6, graphitic

Solar energy is one of the primary sources in the field of green and pure energy

Organic Pollutants

*Someshwar Pola and Ramesh Gade*

tion of perovskite photocatalytic applications.
