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제118회 대한화학회 학술발표회, 총회 및 기기전시회 안내 AN EFFECTIVE APPROACH FOR PHOTODEACTIVATION OF HARMFUL ALGAL BLOOMS WITH VARIOUS PHOTOCATALYST UNDER SOLAR LIGHT

등록일
2016년 9월 2일 09시 12분 01초
접수번호
2498
발표코드
MAT3-3 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 14시 : 10분
발표형식
심포지엄
발표분야
재료화학 - Current Trends in Nano Materials Chemistry
저자 및
공동저자
이수완
선문대학교 환경생명화학공학과, Korea
In recent years, semiconductor photocatalysis has attracted much attention due to its potential applications to solve the environmental problems [1]. Utilization of photocatalysis in many chemical processes is of special interest as it can be applied for the removal of toxic agents in air and water using solar energy so that photocatalytic technologies are now considered as promising technologies.
Adverse environmental effects from some marine microorganisms now seriously impact our lives. Marine microbes, which are responsible for approximately half of the Earth’s primary production of nutrients, play an enormous role in global nutrient cycling. Marine microorganisms are small, and acellular or unicellular. Some phytoplanktons are bacteria, some are protists, and most are single-celled plants. Among the common kinds are cyanobacteria, silica-encased diatoms, dinoflagellates, green algae, and chalk-coated coccolithophores. The most evident effects of these kinds of red and green tides are associated with wildlife mortalities of marine and coastal species of fish, birds, marine mammals, and cause great economic loss and ecological damages. These events are continuously observed in oceans, rivers and lakes all over the world.
Recently, TiO2 and nitrogen doped TiO2 have been synthesized for different photocatalytic process. It has been reported that microorganisms such as Escherichia coli, marine algae, fungi, and virus are inactivated by using TiO2 photocatalyst. The aim of this research is to find an alternative way to deactivate green tide by employing heterogeneous photocatalysts. In our research center for eco multi-functional nanomaterials, various photocatalysts active under UV and visible light such as binary semiconductors like TiO2, Ag3PO4, and scheelite structures such as PbMoO4, perovskite-like cuboid materials by microwave hydrothermal, sonochemical methods, for the deactivation of hazardous Harmful Algal Blooms.

Keywords: Red Tide, Green Tide, Photocatalyst, Ocean, River, Lake

References:
[1] J. Am. Chem. Soc., 127 (2005) 1344–1345.

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