2019英特尔ISEF学科最佳作品摘要：环境工程 Best of Category Abstract: ENVIRONMENTAL ENGINEERING
获奖作品基本信息
| 年份 | 2019 |
| 学科 | 环境工程 ENVIRONMENTAL ENGINEERING |
| 国家/州 | NH, United States of America |
获奖作品名称
Photocatalytic Oxidation Utilizing Doped Titanium Dioxide for Air Purification
获奖作品摘要
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 英特尔 Intel ISEF
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高中生科研学术活动 英特尔 Intel ISEF 简介
英特尔国际科学与工程大奖赛，简称 "ISEF"，由美国 Society for Science and the Public（科学和公共服务协会）主办，英特尔公司冠名赞助，是全球规模最大、等级最高的中学生的科研科创赛事。ISEF 的学术活动学科包括了所有数学、自然科学、工程的全部领域和部分社会科学。ISEF 素有全球青少年科学学术活动的“世界杯”之美誉，旨在鼓励学生团队协作，开拓创新，长期专一深入地研究自己感兴趣的课题。
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· 数学 · 物理 · 化学 · 生物 · 计算机 · 工程 ·
学科简介：环境工程 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.
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