Cogranulation of Low Rates of Graphene and Graphene Oxide with Macronutrient Fertilizers Remarkably Improves Their Physical Properties,ACS Sustainable Chemistry & Engineering

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Cogranulation of Low Rates of Graphene and Graphene Oxide with Macronutrient Fertilizers Remarkably Improves Their Physical Properties
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2017-12-05 00:00:00 , DOI: 10.1021/acssuschemeng.7b03655
Shervin Kabiri _{1,

2} , Roslyn Baird ₃ , Diana N. H. Tran _{1,

2} , Ivan Andelkovic _{1,

3} , Mike J. McLaughlin _{2,

3} , Dusan Losic _{1,

2}

Affiliation

The beneficial effects of graphene (GN) and graphene oxide (GO) additives on the physical properties of monoammonium phosphate (MAP) fertilizer granules were investigated. Low doses (0.05 to 0.5% w/w) of GN and GO sheets were cogranulated with MAP and effects on the crushing strength, abrasion and impact resistance of prepared granules were evaluated. Cogranulation with 0.5% w/w GN sheets (MAP-GN) significantly enhanced the mechanical strength of MAP granules (∼18 times improvement) whereas inclusion of same amounts of GO sheets (MAP-GO) improved the strength to a lesser extent (∼8 times improvement). The cogranulation of GN also improved MAP granules resistance to abrasion (>70%) and impact resistance (>75%). Heating MAP-GO granules at 50 °C after granulation is shown to enhance their physical properties in comparison to MAP-GO granules dried under ambient temperatures. The advantages of GN and GO sheets compared with current additives in enhancing the physical properties of MAP granules are explained by their high specific area, superior nanofiller–matrix and adhesion/interlocking ability arising from their unique wrinkled structures and two-dimensional (2D) geometry. These results confirm the potential of GN/GO additives to enhance the physical properties of MAP granules that could be translated to other fertilizers and applied in the industry.

中文翻译：

低速石墨烯和氧化石墨烯与大量营养肥的共粒化显着改善了它们的物理性能

研究了石墨烯（GN）和氧化石墨烯（GO）添加剂对磷酸一铵（MAP）肥料颗粒物理性能的有益影响。将低剂量（0.05至0.5％w / w）的GN和GO片与MAP一起制粒，并评估其对所制备颗粒的抗碎强度，耐磨性和抗冲击性的影响。用0.5％w / w GN片状材料（MAP-GN）进行成粒可显着提高MAP颗粒的机械强度（提高约18倍），而包含相同量的GO片状材料（MAP-GO）则在较小程度上提高了强度（〜提升了8倍）。GN的成粒作用还改善了MAP颗粒的耐磨性（> 70％）和抗冲击性（> 75％）。与在环境温度下干燥的MAP-GO颗粒相比，制粒后在50°C下加热MAP-GO颗粒可提高其物理性能。GN和GO片材与目前的添加剂相比，在增强MAP颗粒的物理性能方面的优势是由于它们的高比表面积，卓越的纳米填料基体和独特的起皱结构和二维（2D）几何形状而产生的粘附/互锁能力。这些结果证实了GN / GO添加剂具有增强MAP颗粒物理性能的潜力，该颗粒可转化为其他肥料并应用于工业。由于其独特的皱纹结构和二维（2D）几何形状而产生的卓越的纳米填料–基质和粘附/互锁能力。这些结果证实了GN / GO添加剂具有增强MAP颗粒物理性能的潜力，该颗粒可转化为其他肥料并应用于工业。由于其独特的皱纹结构和二维（2D）几何形状而产生的卓越的纳米填料–基质和粘附/互锁能力。这些结果证实了GN / GO添加剂具有增强MAP颗粒物理性能的潜力，该颗粒可转化为其他肥料并应用于工业。

更新日期：2017-12-05

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