Department of Chemistry, College of Sciences, Taibah University, Al-Medina Al-Munawara 41477, Saudi Arabia; Department of Chemistry, Jamia Millia Islamia, (Central University) New Delhi, India.
Biology Department, Faculty of Sciences, Taibah University, Al-Medina Al-Munawara 41477, Saudi Arabia.
Colloids Surf B Biointerfaces. 2018 Nov 1;171:606-613. doi: 10.1016/j.colsurfb.2018.07.071. Epub 2018 Jul 31.
Second generation herbicide is applied for broad leaf weeds and yearly grasses in the growing fields of bananas, pineapple, sugarcane - polluting water sources. Cyanazine removal is described on functionalized iron nano particles (nano-adsorbent). The nano-adsorbent was developed via eco-friendly method, functionalized with 1-butyl-3-methylimidazolidium bromide followed by SEM, XRD and FT-IR characterization. Remaining cyanazine in water was examined by C-HPLC method. The batch experimentation limits were 30.0 μg/L (concen.), 30.0 min. (time) 7.0 (pH), 2.5 g/L (dose) and 25.0 °C temperature. The experimentation data followed Freundlich, Temkin Dubinin-Radushkevich and Langmuir isotherms. The values of ΔG°, ΔH° and ΔS° were -7.41, -6.47 and -6.27 kJ/mol at 20, 25 and 30 °C temps.; -8.27 kJ/mol and -7.93 × 10 kJ/mol K. These observations shown removal process fast and exothermic. The removal obeyed pseudo-first-order and liquid film diffusion mechanism. The removal method was quick, eco-friendly, and cheap owing to be appropriate under usual situations of water assets. The removal method can be applied for cyanazine removal in different waters.
第二代除草剂用于香蕉、菠萝、甘蔗等作物生长地中的阔叶杂草和一年生杂草，会污染水源。氰嗪的去除是在功能化铁纳米颗粒（纳米吸附剂）上进行描述的。纳米吸附剂是通过环保方法制备的，用 1-丁基-3-甲基咪唑溴化盐进行功能化，然后进行 SEM、XRD 和 FT-IR 表征。通过 C-HPLC 方法检测水中剩余的氰嗪。批量实验的限制条件为 30.0μg/L（浓度）、30.0min（时间）、7.0（pH）、2.5g/L（剂量）和 25.0°C 温度。实验数据符合 Freundlich、Temkin Dubinin-Radushkevich 和 Langmuir 等温线。在 20、25 和 30°C 温度下，ΔG°、ΔH°和ΔS°的值分别为-7.41、-6.47 和-6.27 kJ/mol；-8.27 kJ/mol 和-7.93×10 kJ/mol K。这些观察结果表明去除过程快速且为放热过程。去除过程遵循准一级和液膜扩散机制。由于该方法适用于水资产的常见情况，因此该去除方法快速、环保且廉价。该去除方法可用于不同水体中氰嗪的去除。
