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首页> 外文期刊>Journal of Environmental Science and Health >Aggregation and toxicity of titanium dioxide nanoparticles in aquatic environment-A Review
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Aggregation and toxicity of titanium dioxide nanoparticles in aquatic environment-A Review

机译：二氧化钛纳米粒子在水生环境中的聚集与毒性研究进展

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摘要

The use of nanoparticles-particles with size ～1-100 nm is increasing worldwide. This is particularly the case for applications of titanium dioxide nanoparticles (nano-TiO_2) in consumer products, which have expanded at a fast rate in the last decade. The properties of nano-TiO_2 differ significantly from bulk-TiO_2 of the same composition because of an increase in surface area. A release of nano-TiO_2 from application sources to the aquatic environment may pose possible risks due to their bioavailability and toxicity. The aggregation of nano-TiO_2 plays an important role in the environmental effects of nanoparticles because the size and shape of nanoparticles will determine the magnitude of any potentially toxic effect. Aggregation is affected by pH, ionic strength, and ionic identity (inorganic and organic) of aqueous suspensions and is reviewed in this paper. The current information on the evaluation of ecotoxicological hazards of nano-TiO_2 to bacteria, algae, invertebrates, nematodes, and rainbow trout is also given.
机译：在世界范围内，越来越多的纳米粒子被使用，其尺寸约为1-100 nm。对于二氧化钛纳米颗粒（nano-TiO_2）在消费产品中的应用尤其如此，在最近十年中，该产品以快速的速度增长。由于表面积的增加，纳米TiO_2的性能与相同组成的本体TiO_2明显不同。纳米TiO_2从应用源释放到水生环境中可能会由于其生物利用度和毒性而带来潜在的风险。纳米TiO_2的聚集在纳米颗粒的环境影响中起重要作用，因为纳米颗粒的大小和形状将决定任何潜在的毒性作用的程度。聚集受pH，离子强度和水悬浮液的离子特性（无机和有机）的影响，本文对此进行了综述。还提供了有关评估纳米TiO_2对细菌，藻类，无脊椎动物，线虫和虹鳟鱼的生态毒理危害的当前信息。

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