Photocatalysis Essays

Water contamination is one the world wide problems, which is directly affecting living organisms. There are several variety causes water pollutants like synthetic dyes used for textile dyeing, paper, plastics, leather, food, cosmetic industry, and other printing industries that causes severe ecological problems, because of their unacceptable color, biological degradation, toxicity, and carcinogenic properties, they are of great concern.[1]. In order to solve this problem, many of researchers have

Clean water has been one of the most important challenges for many people in the world, especially in developing countries. Numerous people in poor countries don’t have access to clean water for drinking, which leads to a considerable risk of sickness. In reality, most of all diarrhea diseases are results of contaminated water1 with an estimated morbidity of 1 billion and a mortality of 2.2 million per year.2 This issue not only influences the health in communities, but also can prevent development

Lacking of clean freshwater has been one of the biggest challenges throughout the world1. Contaminated water is one of the biggest sources of potentially hazardous microorganisms that can cause severe health problem for humans either by direct consumption or through use in washing of food materials and food contact surfaces. According to the traditional water disinfection methods such as chlorination and ozonation have shown disadvantages related to the formation of potentially hazardous disinfection

pesticides, nitrophenols are widely used as chemical intermediates. These are stable, carcinogenic and toxic. Para nitrophenol(PNP) is one of them and the presence of it in the environment is harmful for the living being. The technique heterogeneous photocatalysis belonging to advanced oxidation process have proved to be one of the most effective treatment methods for the removal of pollutants from wastewater. In this process strong oxidizing agent hydroxyl radicals are produced which oxidizes a wide variety

environmental footprint. For this reason, I am interested in Dr. Schomaker’s research, particularly its emphasis on catalyst development and the use of greenhouse gases in synthesis. I am also interested in Dr. Yoon’s and Dr. Burke’s work with photocatalysis and symmetry in synthesis respectively. With any of the above professors, I like both the overall synthetic focus as well as their specific approaches to solving synthetic

Water is very important to protract civilization (Gleick, 1998; Vitousek et al., 1997), but with a rising global human population, and alteration in weather types as a result of climate change, there are extending concerns and issues with quality and quantity of water for human use. The major topic of concerns is increasing incidences of microbial and chemical pollution in water (Schwarzenbach, et al., 2010; Vorosmarty et al., 2000). This becomes a serious health hazard if the drinking water is contaminated

Introduction: A microorganism is a microscopic living organism which is unicellular or multicellular. Microorganisms interact with human body continuously, but most tionof them do not cause any harm. Only few organisms are pathogenic to human beings. They may be a bacteria, virus, fungus or a parasite. Many of the bacteria are a part of the normal body flora and inhabit various areas in the body such as the oral cavity, nose, skin, nasopharynx, oropharynx, gastrointestinal tract, genitalia, urethra