A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator.
A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator.
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DOI：
10.1021/acssuschemeng.2c00519
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发表时间：
2022-04-25
影响因子：
8.4
通讯作者：
Patwardhan, Siddharth, V
中科院分区：
文献类型：
--
作者：
Brambila, Carlos;Boyd, Peter;Keegan, Amber;Sharma, Pankaj;Vetter, Caleb;Ponnusamy, Ettigounder;Patwardhan, Siddharth, V
为了回答有关二氧化硅生产可持续性的问题，MilliporeSigma的DOZN 2.0绿色化学评估器被使用，因为它基于绿色化学的12条原则提供定量值。作为第一个使用DOZN 2.0评价纳米材料绿色度的研究，我们考虑了一系列二氧化硅类型，并比较了它们的绿色度得分。这些包括低价值和高价值的二氧化硅，既有商业的，也有新兴的，如沉淀的，凝胶的，烟熏的，胶体的，介孔的和生物激发的二氧化硅。在调查这些不同类型的二氧化硅时，很明显，虽然低价值二氧化硅具有出色的绿色得分，但高价值二氧化硅在这个尺度上表现不佳。这突出了新兴市场所需的高价值二氧化硅与其合成的可持续性之间的紧张关系。计算能够量化与能量密集型反应有关的问题，以及随后溶胶-凝胶过程中软模板的去除。确定了在工艺过程中避免有问题的溶剂，特别是将其作为废物释放的重要性。计算还能够比较产生的废物数量及其危险性质。为了更好地理解生产过程与其可持续性之间的关系，还研究了合成条件对绿色得分的影响。第一项研究比较了一系列二氧化硅的可持续性，突出了关注的领域，并确定了潜在的改进。
To answer questions surrounding the sustainability of silica production, MilliporeSigma’s DOZN 2.0 Green Chemistry Evaluator was employed as it provides quantitative values based on the 12 principles of Green Chemistry. As a first study using DOZN 2.0 to evaluate the greenness of nanomaterials, a range of silica types were considered and their greenness scores compared. These included low- and high-value silicas, both commercial and emerging, such as precipitated, gel, fumed, colloidal, mesoporous, and bioinspired silicas. When surveying these different types of silicas, it became clear that while low value silicas have excellent greenness scores, high-value silicas perform poorly on this scale. This highlighted the tension between high-value silicas that are desired for emerging markets and the sustainability of their synthesis. The calculations were able to quantify the issues pertaining to the energy-intensive reactions and subsequent removal of soft templates for the sol–gel processes. The importance of avoiding problematic solvents during processes and particularly releasing them as waste was identified. The calculations were also able to compare the amount of waste generated as well as their hazardous nature. The effects of synthesis conditions on greenness scores were also investigated in order to better understand the relationship between the production process and their sustainability. A first study comparing the sustainability of a range of silicas, highlighting areas of concern and identifying potential improvements is presented.
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影响因子：
5.9
作者：
Eckelman, Matthew J.;Zimmerman, Julie B.;Anastas, Paul T.
通讯作者：
Anastas, Paul T.
影响因子：
3.4
作者：
Jimenez-Gonzalez, Concepcion;Ollech, Caleb;Bhathela, Neil
通讯作者：
Bhathela, Neil
影响因子：
15.1
作者：
Drummond, Craig;McCann, Rachelle;Patwardhan, Siddharth V.
通讯作者：
Patwardhan, Siddharth V.
影响因子：
15
作者：
BECK, JS;VARTULI, JC;SCHLENKER, JL
通讯作者：
SCHLENKER, JL
影响因子：
6.2
作者：
Cole, Kathryn E.;Valentine, Ann M.
通讯作者：
Valentine, Ann M.