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Search the World's Largest Database of Information Science & Technology Terms & Definitions

InfScipedia

A Free Service of IGI Global Publishing House

Below please find a list of definitions for the term that
you selected from multiple scholarly research resources.

What is Eutrophication

Chapter 19

Handbook of Research on Emerging Developments and Environmental Impacts of Ecological Chemistry

Enrichment of nutrient salts in water resources due to run-off from the land that affects the ecosystem such as increased growth of aquatic plants, production of algae, lowering of fish species, deterioration of water quality, etc.

Published in Chapter:

Photocatalytic Activity of ZnO Nanoparticles on the Degradation of Organic Dyes Under Solar Light

Sivakumar Krishnamoorthy (Department of Chemistry, Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya (Deemed), India) and Dharani M. (Department of Chemistry, Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya (Deemed), India)

Source Title: Handbook of Research on Emerging Developments and Environmental Impacts of Ecological Chemistry

DOI: 10.4018/978-1-7998-1241-8.ch019

Abstract

Zinc oxide (ZnO) nanoparticles prepared using simple co-precipitation method are characterized and photocatalytic activity is tested on the degradation of methylene blue and rhodamine B organic pollutants. Morphological and structural properties of synthesized nanomaterial have been characterized using FESEM, EDAX spectroscopy, and XRD, while UV-visible DRS spectroscopy and photoluminescence have been used to understand their optical properties. The photocatalytic behaviour of synthesized nanoparticles was evaluated on the degradation of methylene blue (MB) and rhodamine B (RhB) organic pollutants under solar light irradiation. The highest degradation was achieved for MB (100%) over RhB (96%). Preliminary investigation shows the effective degradation of organic pollutants by ZnO nanoparticles.