2019英特爾ISEF學科最佳作品摘要：環境工程 Best of Category Abstract: ENVIRONMENTAL ENGINEERING

Category: STEM國際競賽, 國際競賽, 物理國際競賽 Date: 2019年9月2日下午2:28

獲獎作品基本信息

年份	2019
學科	環境工程 ENVIRONMENTAL ENGINEERING
國家/州	NH, United States of America

獲獎作品名稱

Photocatalytic Oxidation Utilizing Doped Titanium Dioxide for Air Purification

獲獎作品摘要

Air pollution has become the deadliest environmental problem, leading to more than seven million deaths per year. People are forced to wear masks in China to protect themselves from the heavy smog in the area. In the U.S. alone, $500 million are spent yearly on air purifiers to increase indoor air quality. However, there are no air purifiers which are personal for someone to wear and use when they are outdoors. Furthermore, current effective air purifiers are extremely expensive (up to thousands of dollars) and cannot filter many dangerous pollutants such as volatile organic compounds (VOC). In order to mitigate these issues, a filter using photo-catalytic oxidation by doping titanium dioxide was created and tested. By using a sol-gel process, titanium dioxide nanoparticles were doped with various dopants such as silver nitrate and coated on a paper filter. This doping process reduced the band-gap energy, therefore; increasing the air purification efficiency. The screen was tested by passing polluted air through the filter and analyzing the outgoing air using air quality monitors. The PANI-doped titanium dioxide proved to be most effective in reducing air pollutants by bringing down the amount of VOCs by 99% after 2 hours. This data was also supported with the methylene blue degradation process seen through the ultraviolet-visible spectroscopy. Not only is the filter more affordable and efficient than others, the filter is the only air purification method capable of purifying air outdoors efficiently for a user.

高中生科研英特爾 Intel ISEF
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高中生科研學術活動英特爾 Intel ISEF 簡介

英特爾國際科學與工程大獎賽，簡稱 "ISEF"，由美國 Society for Science and the Public（科學和公共服務協會）主辦，英特爾公司冠名贊助，是全球規模最大、等級最高的中學生的科研科創賽事。ISEF 的學術活動學科包括了所有數學、自然科學、工程的全部領域和部分社會科學。ISEF 素有全球青少年科學學術活動的“世界杯”之美譽，旨在鼓勵學生團隊協作，開拓創新，長期專一深入地研究自己感興趣的課題。

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英特爾 ISEF 學術活動詳細介紹

英特爾 ISEF 全程指導方案

· 數學 · 物理 · 化學 · 生物 · 計算機 · 工程 ·

學科簡介：環境工程 ENVIRONMENTAL ENGINEERING

Studies that engineer or develop processes and infrastructure to solve environmental problems in the supply of water, the disposal of waste, or the control of pollution.

Subcategories:

Bioremediation?(BIR):?The use of biological agents, such as bacteria or plants, to remove or neutralize contaminants. This includes phytoremediation, constructed wetlands for wastewater treatment, biodegradation, etc.

Land Reclamation?(ENG):?Studies that apply? engineering principles and design techniques to restore land from wetlands, seas, lakes, deserts or mines, through drainage or irrigation to a more productive use or its previous undisturbed state.? This subcategory also includes studies involving the restoration of land that is damaged by natural phenomena, such as erosion, or impaired by industrial and urban processes.

Pollution Control?(PLL):?Studies that use engineering principles and design to prevent or control air, water and solid waste pollution.

Recycling and Waste Management?(REC):?Studies involving the extraction and reuse of useful substances from discarded items, garbage, or waste. The process of managing, and disposing of, wastes and hazardous substances through methodologies such as landfills, sewage treatment, composting, waste reduction, etc.

Water Resources Management?(WAT):?Studies that apply engineering principles and design to the planning, developing, distributing and managing the optimum use of water resources.?Studies in this subcategory might include applied surface and groundwater hydrology, forecasting and control of quantity and quality of water or simulation and modeling of water resource systems.

Other?(OTH):?Studies that cannot be assigned to one of the above subcategories. If the project involves multiple subcategories, the principal subcategory should be chosen instead of Other.