二氧化钛在水环境中的迁移转化及其毒性影响因素

Migration and Transformation of Titanium Dioxide in Water Environment and Its Toxic Factors

在过去的几十年里,二氧化钛纳米颗粒(n-TiO_(2))已广泛应用于若干工业产品和新型消费产品的制造。虽然已经制定了严格的规定,限制它们向水生环境中释放,但研究者发现这些纳米颗粒在环境中含量水平仍然较高,可能对暴露的生物体产生有毒影响,并可能对公共卫生产生影响。该文综述了n-TiO_(2)在水生环境中的吸收、积累和最终归宿,以及其与重金属、有机物等污染物之间可能的相互作用。这些数据将为n-TiO_2的生态毒性研究及风险控制提供丰富的理论支持。

In the past few decades,titanium dioxide nano particles(n-TiO_(2))have been widely used in the manufacture of some industrial products and new consumer products.Although strict regulations have been formulated to limit their release into the aquatic environment,the researchers found that these nano particles still have high levels in the environment,which may have toxic effects on exposed organisms and may have an impact on public health.In this paper,the absorption,accumulation and final fate of n-TiO2 in aquatic environment,as well as the possible interaction between n-TiO_(2) and heavy metals,organic compounds and other pollutants are reviewed.These data will provide rich theoretical support for the ecotoxicity research and risk control of n-TiO_(2).