Journal ArticleDOI
Photocatalytic Degradation of Organic Pollutants: A Review
TLDR
In this paper, the photocatalytic degradation of different kinds of organic pollutants; mainly surfactants, pesticides, dyes, phenols, chloro compounds, nitrogen containing compounds etc. Mechanisms of their degradation have also been discussed with hydroxyl and allied radicals as the main active oxidizing species.Abstract:
Water pollution is increasing at an ever increasing pace and the whole world is in the cancerous grip of this pollution. Various industries are discharging their untreated effluents into the nearby water resources; thus, adding to the existing water pollution to a great extent. Hence, there is a pressing demand to develop an alternate technology for wastewater treatment and in this context; photocatalysis has emerged as an Advanced Oxidation Process with green chemical approach for such a treatment. This chapter deals with photocatalytic degradation of different kinds of organic pollutants; mainly surfactants, pesticides, dyes, phenols, chloro compounds, nitrogen containing compounds etc. Mechanisms of their degradation have also been discussed with hydroxyl and allied radicals as the main active oxidizing species.read more
Citations
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Journal ArticleDOI
TiO2 photocatalyst for water treatment applications
Seul-Yi Lee,Soo-Jin Park +1 more
TL;DR: In this paper, a review of water treatment technologies, such as biological treatment, coagulation/precipitation techniques, Fenton oxidation treatments, and advanced oxidation techniques, have been assessed to address the worsening clean water shortage.
Journal ArticleDOI
Photocatalytic Activity Improvement and Application of UV-TiO2 Photocatalysis in Textile Wastewater Treatment: A Review
TL;DR: In this paper, the authors present a comprehensive and fundamental assessment of the photocatalytic activity for the removal of organic dyes and phenolic compounds from textile wastewater, which has been widely studied and is being commercialized in many developing countries in the world.
Journal ArticleDOI
Role of Nanomaterials in the Treatment of Wastewater: A Review
TL;DR: In this paper, a review article describes various applications of nanomaterials in removing different types of impurities from polluted water, which carried huge potential to treat polluted water (containing metal toxin substance, different organic and inorganic impurities) very effectively due to their unique properties like greater surface area, able to work at low concentration, etc.
Journal ArticleDOI
Engineering nanostructures of CuO-based photocatalysts for water treatment: Current progress and future challenges
Pankaj Raizada,Anita Sudhaik,Shilpa Patial,Vasudha Hasija,Aftab Aslam Parwaz Khan,Pardeep Singh,Sourav Gautam,Manpreet Kaur,Van-Huy Nguyen +8 more
TL;DR: In this article, the authors summarized synthetic strategies of Cupric Oxide fabrication, modification methods with applications for water treatment purposes, and an elaborative discussion on feasible strategies includes; binary and ternary heterojunction formation, Z-scheme based photocatalytic system, incorporation of rare earth/transition metal ions as dopants, and carbonaceous materials serving as a support system.
Journal ArticleDOI
Nanoscale TiO2 films and their application in remediation of organic pollutants
G. Varshney,Sushil R. Kanel,David M. Kempisty,Vikas Varshney,Abinash Agrawal,Endalkachew Sahle-Demessie,Rajender S. Varma,Mallikarjuna N. Nadagouda +7 more
TL;DR: A comprehensive overview of current knowledge regarding UV/vis and natural solar light photocatalysis of pollutants using titanium dioxide (TiO 2 ) nanoparticles in thin film form is provided in this paper.
References
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Journal ArticleDOI
Photocatalysis on TiO2 Surfaces - Principles, Mechanisms, and Selected Results
TL;DR: In this article, the authors focus on interfacial processes and summarize some of the operating principles of heterogeneous photocatalysis systems, including the electron transfer and energy transfer processes in photocatalytic reactions.
Journal ArticleDOI
Recent Developments in Photocatalytic Water Treatment Technology: A Review
TL;DR: For the first time, a multi-variables optimization approach is described to determine the optimum operation parameters so as to enhance process performance and photooxidation efficiency in the photocatalytic water treatment process.
Journal ArticleDOI
Heterogeneous photocatalysis: fundamentals and applications to the removal of various types of aqueous pollutants
TL;DR: In this article, the basic fundamental principles are described as well as the influence of the main parameters governing the kinetics (mass of catalyst, wavelength, initial concentration, temperature and radiant flux).
Journal ArticleDOI
Photocatalytic degradation pathway of methylene blue in water
Ammar Houas,Hinda Lachheb,Hinda Lachheb,Mohamed Ksibi,Elimame Elaloui,Chantal Guillard,Jean-Marie Herrmann +6 more
TL;DR: In this article, the TiO2/UV photocatalytic degradation of methylene blue (MB) has been investigated in aqueous heterogeneous suspensions, and it has been shown that the degradation pathway can be determined by a careful identification of intermediate products, in particular aromatics, whose successive hydroxylations lead to the aromatic ring opening.
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