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Application of Nano-tech in Detecting Heavy Metal and Micro-pollutants in Drinking Water

发布时间:2013-9-5  浏览次数:457

With the support of the national key research program “Basic Research of Application of Nanotechnology to Remove Micro-pollutants in Drinking Water”, Institute of Intelligent Machines, Chinese Academy of Sciences, has developed new mechanism based on fluorescence detection method, designed its corresponding detection system and realized highly sensitive optical detection of selecting mercury ions in drinking water.

There is a growing worldwide concern about the issue of drinking water safety nowadays. To study the new nano-tech detection method and mechanism of micro-pollutants in drinking water is a challenging research on drinking water safety assessment. Experts of the Research Center for Biomimetic Functional Materials and Sensing Devices, IIM, research fellow Liu Jinhuai, associate fellow Wang Jin and Dr. Kong Lingtao have worked together, developed a new combined “quenching/strengthening fluorescence” mechanism by using the fluorescence quenching of carbon nano-material graphene and the fluorescence strengthening synergistic effect of nanogold particles, and realized highly sensitive optical detection of selecting mercury ions in drinking water. The related paper of their research results has been formally published on the internationally known academic journal, RSC’s Chemical Communications. The review experts in this field all considered the paper is a condensed integration of nanometer technologies and the fluorescence detection mechanism of heavy metal and micro-pollutants in drinking water the researchers have proposed is of university.

Except from inorganic micro-pollutant detection, the research people also received new results in organic micro-pollutants trace detection in drinking water. They make use of cupped macrocyclic matter’s selective catching ability of organic pollutants, modify it on the surface of carbon nanometer materials or nanogold, and realize the detection of low concentration of aromatic organic pollutants through analysis of optoelectronic signals. The related research results are chosen as brilliant work and back cover paper by Journal of Materials Chemistry of RSC. 

Based on a series of above-mentioned fruitful research work, researchers of IIM further explore new optical detection mechanism and methods on the basis nanometer material with special optical features in order to realize the extra sensitive detection of micro-pollutants in drinking water.