Photocatalytic Lab Report - 826 Words

Introduction: Recently semiconductor based photo-catalysis as a sort of green technology which has attracted notable attraction among the researchers. This field has emerged as one of the most promising ways for photo conversion-related technologies by harvesting sun light in environment and energy fields. In general photocatalytic oxidation has been applied broadly in the process of removal of organic pollutants in water and air as a cost-effective and environmentally friendly technology, which could decompose organic compounds into CO2 and H2O under lenitive conditions. The optimal photocatalytic material should be non-toxic, absorb light in the visible range, be easy to fabricate, remain stable in contact with water, and have high†¦show more content†¦The existence of metal-like electronic conductivity of molybdenum (IV) oxide has formulated them as promising materials in energy related applications [8–10]. Graphene, which is the most recent material of the carbongroup, is considered as one of the greatest smart materials ofthe 21st century.[1] Graphene and graphene-based composites show numerous potential applications owing to their distinctivetwo-dimensional assembly and related band structure. Graphene has gained attention of many scientists since its innovation due to its exceptional large surface area (2630 m2g_1),[2] high electrical conductivity at room temperature[3,4](106 s cm-1), good mechanical properties[5] (~1.1 TPa), fracturestrength[5] (125 GPa), breaking strength[6] (42 N m-1), excellentmobility as charge carriers[7] (~20 m2 V_1 s_1), superior thermalconductivity (~5000 W m K_1),[6] high carrier density (~1012 cm_2),[8] good optical transmittance (~97.7%),[9] specific magnetism,and chemical stability.[1] Graphene and its compositesare widely used in sensors, transistors, electronics, composite materials, photonics, bioengineering, energy production, andstorage.[10] Pure g raphene is hydrophobic in nature and cannotbe dispersed in aqueous solutions [11] therefore this factor limitsits application in water purification. Chemically converted graphene, namely graphene oxide and reduced graphene oxide,can be easily synthesized[12] and have shown numerous potentialapplications in waterShow MoreRelatedPhotocatalytic Lab Report865 Words   |  4 Pagesphoto conversion-related technologies by harvesting sun light in environment and energy fields. In general photocatalytic oxidation has been applied broadly in the process of removal of organic pollutants in water and air as a cost-effective and environmentally friendly technology, which could decompose organic compounds into CO2 and H2O under lenitive conditions. The optimal photocatalytic material should be non-toxic, absorb light in the visible range, be easy to fabricate, remain stable in contactRead MoreThe Effect Of Light On The Human Ear786 Words   |  4 Pagesmolecules moves to the coolest area of it s system and cool water molecules move to the hottest area of its system. This forms a movement within water called convection. There has been many research reports on the interaction of light with water and how it affect objects within the water. In a lab research by the CLOUD 8-9 campaign in CERN facility to discrimination of water ice and aerosol by light polarization facility found that single particle polarisation could be used to discrimination waterRead MoreDegradation Of A Wide Range Of Model Pollutants3049 Words   |  13 PagesABSTRACT Heterogeneous photocatalysis, has been reported to be effective for the degradation of a wide range of model pollutants in suspension. The use of nanostructured materials is one approach to improving photocatalytic efficiency. Therefore, this work is based on the use of nanomaterials such as titania and silver-zinc oxide photocatalysts to degrade amoxicillin trihydrate (a model antibiotic pollutant) in suspension under UV-C irradiation and compares the efficiencies of the photocatalystsRead MoreEssay on Photovoltaic Cells as Sources of Clean Energy2257 Words   |  10 Pagesattached to any external voltage source, but do require an external load for power consumption. CHEMICAL SOLAR ENERGY CONVERSION – This utilize the solar energy in industrial processes; photo aided industrial reactions, environmental remediations, photocatalytic water splitting, charging secondary batteries e.g. vanadium redox flow battery. II. DIFFERENT GENERATION OF SOLAR CELLS 1) First Generation Single crystal silicon wafers (c-Si) - First generation photovoltaic cells are the dominant technologyRead MoreElectronic State Transition From Bulk Metal / Semiconductor3686 Words   |  15 Pagesunderstanding the optical properties and applications of nanomaterials. The absorption will determine not only the color of the materials but also other important optical properties such as photoluminescence, lasing, electroluminescence, photovoltaic,photocatalytic, and photoelectrochemical properties. 3. Photoluminescence 3.1 Operating principle At the fundamental level, the principle underlying photoluminescence (PL) spectroscopy is very similar to that of electronic absorption spectroscopy. They bothRead MoreMarketing Management130471 Words   |  522 Pagessatisfaction Customer relationship management Marketing of services Rural marketing Types of marketing research Process of marketing research Tools and Techniques of marketing research Applications of marketing research Preparation of marketing research report Online marketing E-commerce Trends in marketing Page No. Marketing management – an introduction Unit structure: 1. Introduction 2. Learning Objectives 3. Marketing Management 3.1. Evolution of marketing management 3.2. The Role of Marketing

Is the Internet Bad for Us Free Essays

ENG 120 I03FY February 23, 2010 Is the internet bad for us ? In the old days, a paper research used to take up to several days, when only libraries and encyclopedias had the right and trustful information. A visit to the Metropolitan Museum of Art involved finding the address first, and that took as well quite some time. In our days all this information is just a click away. We will write a custom essay sample on Is the Internet Bad for Us? or any similar topic only for you Order Now The Internet, with the help of web pages, such as Google Search and Google Maps, are the solution to every question one may ask. The long days of search have ended, but it doesn’t mean it is a favorable or beneficial thing for each person. Scientists and professors of well known universities have discovered that this trouble free, straightforward and rapid method has determined not only the brains to delay the thinking process, but also changed people’s behavior in their lives in a negative way. One neuroscientist, Dr. Gary Small conducted a study where he examined the impact of the Internet on a young persons brain. This study consisted of reading a MRI while the person was surfing on the Internet, and another one while it was reading a book. Then, the results where very surprising: the MRI showed more brain activity in the frontal part, the decision part of the brain, when the person was surfing the Internet. The study reached lots of newspapers, and every person believed that Google is making them smarter. However, after a short period of time, Dr. Small reviewed the results and stated: â€Å"On a brain scan big doesn’t mean it is better†¦It’s exactly as in a golf game, you want to keep your score lower†. One can easily see that this brain activity is without doubt detrimental to all of us and surfing the Internet only decreases our process of thinking, instead of increasing it. Surfing on the Internet has become a daily routine, by checking the e-mail, researching on some interesting subjects and that takes probably an hour per day, which is ordinary in our days. Still, there are millions of young students that stay an average of fifty hours a week on the Internet and that just doesn’t seem something normal. All this time spent on the Internet has affected their thinking development. A pathologist of the University of Michigan Medical School states that: â€Å" I can’t read â€Å"War and Peace â€Å" anymore, I’ve lost the ability to do that. Even a blog post on more than three or four paragraphs is too much to absorb. I skim it. This is actually a frightening reality that applies to myself as well. Not only I can’t focus on my daily readings for my biology class, but also if I start reading a book, after only twenty minutes I loose my concentration. This inability to make â€Å"rich mental connections† and just to thin k, has transformed our real intelligence into an artificial intelligence, thus the Internet has a direct participation towards our brain development. One can say that the Internet has changed our lives for the better, since World Wide Web possesses information about almost everything. However, not all the information on the Internet is accurate. There are several web sites where the information is not meticulously verified, therefore one can obtain data and facts that are untrue, even misleading. The best example is Wikipedia, a website where anyone can put any information on this page without any previous examination. Countless students use this web site to research for projects, without knowing the danger of misleading information. Communication in our lives is a tremendous vital thing. Indeed, human beings are born to communicate with each other no matter what kind of lives they decide to live. Communicating with other people allows us to learn about ourselves as human creatures. It helps us to understand our way of behaving, of thinking in different situations/places. However, the Internet has a considerable effect on our daily communication with out friends, family and even loved ones. The casual coffee in a modern cafe is replaced by staying on Yahoo Messenger talking for hours in front of the computer, and a discussion face to face has become a thing of the past, â€Å"thanks† to Second Life, a program where you could meet virtually at a restaurant, cafe or even in a park. The increased access and heavy reliance onto computer games and the Internet for many people today have led to many social problems. Obsessive computer use leads to addiction, which can lead to financial problems, broken relationships, physical and emotional problems. An example of such addiction affected a Korean family. Their son was sent in a camp for he was playing all the time computer games. This camp helped him to stay away from a computer for two weeks, so that he could concentrate on regular activities. The Internet has extended its power at the point that Google and Microsoft are in the process of creating an online international library, extinguishing books. This idea would only cause the lost of our culture and history, because books are an important factor in the achievement of today’s knowledge. The vinegar that was used in the old days to sanitize the scrolls from the deadly diseases, was a crucial tool towards finding the location from where they were sent. Studying their chemical components scientists discovered even details of their way of living. In conclusion, technology in all of its forms – social networks, the Web, online gaming – is a net loss for today’s young people. As Grafton states: The narrow path still leads, as it must, to crowded public rooms where the sunlight gleams on varnished tables, and knowledge is embodied in millions of dusty, crumbling, smelly, irreplaceable documents and books. † Scientists proofed that the Internet is a direct cause of our mental regress, consequently each one of us must take this seriously, before we turn up into a chaotic, unwise and mentally challenge d world. Works Cited â€Å"Digital Nation. † Frontline. PBS. WNET, New York. 2 Feb. 2010. Television. Grafton, Anthony. â€Å"Future Reading: Digitization and Its Discontents. † Fields of Reading. Boston: Bedford/St. Martins, 2010 How to cite Is the Internet Bad for Us?, Papers

Sino Australia Oil and Gas Ltd Case Study Free Sample

Question: Discuss about the Sino Australia Oil and Gas Ltd. Answer: Introduction: Sino Australia Oil and Gas Ltd (Sino) was a holding company of the companies operated in china. Sino basically provide services related to drilling to the companies which are engaged in the oil and gas industry. On 12th December 2013, Sino listed on Australian stock exchange after raising the Initial Public Offer (IPO) of $ 13.6 million approx (ASIC, 2016; ASIC, 2016). Zhaodong HuaYing Oil Drilling Service Company Limited (HuaYing) was a subsidiary of Sino Australia Oil and Gas Ltd. In March 2014, investigation was commenced by the ASIC to investigate whether Sino has contravened the provisions of corporation act by providing misstatements in the prospectus. At the same time, ASIC also obtained injunction from the Federal Court of Australia to freeze the bank account of company in Australia because Mr. Shao was trying to transfer the amount of $ 7.5 million which was received from initial public offer made by the company to the bank account of china. The purpose of transfer such amount was not disclosed in the prospectus of Sino (ASIC, 2014; HWL EBSWORTHS LAWYERS, 2016). In november 2015, ASIC start proceedings against the chairman Mr Tianpeng Shao, and also impose financial penalties against Mr. Shao and order for disqualification of director also and on 21 may 2015 court of Australia on the application of ASIC pass order for the appointment of Mr McCluskey as a provisional liquidator of the company. ASIC made application for the liquidation of the company because of the misstatements made by the company in the prospectus. In 2015, board of directors of sino asking for the advice from their lawyers to protect the interest of their shareholders. Lawyers of the company give advice to the management to appoint provisional liquidators in the company (ASIC, 2015). Main issues in the case are: Misconduct and mismanagement of the affairs of the company. Whether or not Mr. Shao was involved in the contraventions committed by Sino. Misstatement and presentation of wrong facts in the statement of the company by the directors of the company. shao try to transfer the funds of $7.5 million from the bank account of Australia to the bank account of china. The purpose of transferring those funds is not disclosed in the prospectus of Sino. Board of directors of the company does not have complete information to take the sound decision. References: ASIC, (2014). 14-045MR ASIC obtains urgent injunction freezing bank accounts of Sino Australia Oil and Gas Ltd. Retrieved On 22nd September 2016 From: https://www.asic.gov.au/about-asic/media-centre/find-a-media-release/2014-releases/14-045mr-asic-obtains-urgent-injunction-freezing-bank-accounts-of-sino-australia-oil-and-gas-ltd/. ASIC, (2015). 15-124MR Provisional liquidator appointed to Sino Australia Oil and Gas Ltd upon ASIC application. Retrieved On 22nd September 2016 From: https://asic.gov.au/about-asic/media-centre/find-a-media-release/2015-releases/15-124mr-provisional-liquidator-appointed-to-sino-australia-oil-and-gas-ltd-upon-asic-application/. ASIC, (2016). 16-062MR Court orders the wind up of Sino Australia Oil and Gas Limited. Retrieved On 22nd September 2016 From: https://asic.gov.au/about-asic/media-centre/find-a-media-release/2016-releases/16-062mr-court-orders-the-wind-up-of-sino-australia-oil-and-gas-limited/. ASIC, (2016). 16-255MR Court finds against Sino Australia Oil and Gas Limited and its former chairman Tianpeng Shao. Retrieved On 22nd September 2016 From: https://asic.gov.au/about-asic/media-centre/find-a-media-release/2016-releases/16-255mr-court-finds-against-sino-australia-oil-and-gas-limited-and-its-former-chairman-tianpeng-shao/. HWL EBSWORTHS LAWYERS, (2016). Is your appointment valid? ASIC v Sino Australia Oil Gas Ltd. Retrieved On 22nd September 2016 From: https://www.hwlebsworth.com.au/component/k2/item/1990-is-your-appointment-valid?-asic-v-sino-australia-oil-gas-ltd.html.