The challenge of PFAS contamination (sometimes publicly known as PFOS, PFOA, or GenX contamination) of drinking water and its risk to public health will be featured in a leading Hollywood film being released this November.
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PFA吸附剂和催化剂。Image Credit: framergy Inc.
PFAS暴露对人类可能是危险的，可能会造成肝脏损害，肾癌和儿童发育问题。多年来，该物质可以在动物和人类中堆积，从而提高风险。
PFAS物质
PFA，或多氟烷基物质are what the US Food and Drug Administration has termed ‘Forever Chemicals’ because of their endurance in the human body.
由于其疏水链，它们是消费产品化学家的首选选择，这使材料能够产生不粘涂层并将水移开。
该物质可以在烹饪的不粘锅，办公家具和快餐包装中发现。它在消防泡沫中也很受欢迎，这导致了利用这些泡沫的水源的广泛污染。
即使有收集PFA的方法，也没有太多计划如何处理污染物。
化学工程师正在生产多种技术来完全破坏收集的PFA，但是他们需要异地工艺，这些过程需要将连接的吸收剂或PFAS材料掩埋为一种新形式的永久废物形式，或者是高能量密集型的。
对于后一种方法，需要1000°C（〜1800°F）的温度，并且不多用于收集化学物质的吸附剂可以生存该程度的热度。两种方法的环境成本仍然很高。
金属有机框架
输入MOF：金属有机框架are crystalline 3D structures with an extraordinary internal surface area that transfers into an incredible ability to absorb molecules.
A method to produce defects in MOFs made at Rice University has already demonstrated that the materials can absorb over two times more than the industrial standard, activated carbon.
Destruction of PFAS
第一家MOF公司Framergy，Inc。于2019年5月由美国环境保护署（EPA）资助，根据小型企业创新研究（SBIR）计划，以调查PFAS毁灭。
In collaboration with Texas A&M University, the research looks at how PFAS are captured by MOFs. The MOF and guest PFAS molecules are then subjected to ultraviolet light.
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Image Credit: framergy Inc.
Scientists at framergy are utilizing ARYSORB™ T125, a titanium MOF that is structurally similar to the UiO-66 variety employed by the Rice scientists.
ARYSORB™ T125 is based on MIL-125-NH2, which was first invented in 2008 by Christian Serre and Gerard Ferey of the Centre National de la Recherche Scientifique (CNRS).
在Arysorb™T125中，定期安排氧钛簇并通过使用有机接头进行分开，这导致了大型且高度可访问的表面积。
然后，钛节点可以在宾客PFAS分子上作为光催化剂执行，这在UIO-66中是不可能的。该材料专门获得Framergy的许可，以及CNRS已知的所有替代钛基MOF，可从组织和Strem.com上获得商业规模。
ARYSORB™ T125
用500 ppm的全氟辛烷（PFO）在具有1％三乙醇胺作为牺牲还原剂的水溶液中进行破坏测试。将250毫升溶液在定制的ACE玻璃光化学反应器中孵育，在12瓦的紫外光化学灯下，该灯向下延伸。通过氟-19核磁共振光谱法明显证实了PFOS向较小有害有机材料的转化，此后，安捷伦的液态纹状体 - 质量质量质谱仪显示了C的三个不同的峰。8down to C3compounds with different fluoride content.
This definitely proved that PFAS species originating in water can be collected and degraded by ARYSORB™ T125 into smaller substances that are less dangerous, with the use of readily available UV light.
Framergy正在通过EPA的SBIR计划大力扩展商业化的技术，该计划同时由该机构重点关注PFA，”该机构有史以来最关注的化学物质的最全面的跨机构行动计划，" as stated by Andrew Wheeler, Director.
第一阶段计划
The next stage will be to finish Phase I of the program and submit an application for the Phase II award.
EPA’s SBIR Program is pleased to support small businesses such as framergy that are working to bring their innovative ideas to the market to solve tough environmental issues such as treating PFAS in water.
EPA SBIR计划经理April Richards
This development solves the main challenges in the war on PFAS.
事实证明，我们公司的钛金属有机框架不仅可以捕获饮水系统中的危险PFA，而且还可以在太阳的帮助下将其分解为较少的生物利益。
Framergy，Inc。首席运营官Ray Ozdemir
The organization is also utilizing the materials for unique personal care usage, for example, pollutant scavengers and sunblocks on the skin.
This information has been sourced, reviewed and adapted from materials provided by framergy, Inc.
有关此消息来源的更多信息，请访问Framergy，Inc。