• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >High-efficiency adsorption and regeneration of methylene blue and aniline onto activated carbon from waste edible fungus residue and its possible mechanism
【24h】

High-efficiency adsorption and regeneration of methylene blue and aniline onto activated carbon from waste edible fungus residue and its possible mechanism

机译：亚甲基蓝色和苯胺的高效吸附和再生在废物食用菌残留物中的活性炭上及其可能的机制

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Edible fungus residue as an efficient and low-cost precursor was used to produce Edible Fungus residue Activated Carbon (EFAC) using the zinc chloride activation method at a 1?:?2 impregnation ratio and 600 °C activation for 3 hours. The activation process does not need gases like nitrogen and is suitable for mass production. Fungal biodegradation facilitates efficient chemical activation, which might have generated abundant pores on the activated carbon sample. Using BET, X-ray diffraction (XRD), scanning electron microscopy (SEM), and FTIR characterization, reveals that EFAC exhibits a large specific surface area (1070 m ~(2) g ~(?1) ), and large pore volume (0.68 cm ~(3) g ~(?1) ), with its surface displaying a honeycomb-like structure. The EFAC adsorbs methylene blue (MB) and aniline in water, with maximum adsorptions of 662.25 and 27.10 mg g ~(?1) , respectively. Various adsorption conditions, such as the EFAC dosage, pH, contact time and initial concentration were investigated. The adsorption is characterized by the pseudo-second-order kinetic and Langmuir isotherm models, with thermodynamics studies indicating that the adsorption is endothermic and spontaneous. Furthermore, the EFAC exhibited good regeneration performance by a 90% ethanol solution. The EFAC is a low-cost and environmentally friendly adsorbent for removing organic contaminants in wastewater.
机译：可食用的真菌残留物作为一种有效和低成本的前体，用于在1℃下使用氯化锌活化法生产食用菌残留物活性炭（EFAC），在1？2：2浸渍比和600℃的活化3小时。活化过程不需要氮气等气体，适用于批量生产。真菌生物降解有助于有效的化学活化，这可能在活性炭样品上产生丰富的孔隙。使用BET，X射线衍射（XRD），扫描电子显微镜（SEM）和FTIR表征，显示EFAC表现出大的比表面积（1070m〜（2）g〜（α1））和大孔体积（0.68厘米〜（3）G〜（α1）），其表面显示蜂窝状的结构。 EFAC在水中吸附亚甲蓝（MB）和苯胺，分别为662.25和27.10mg g〜（α1）的最大吸附。研究了各种吸附条件，例如EFAC剂量，pH，接触时间和初始浓度。吸附的特征在于伪二阶动力学和Langmuir等温模型，具有热力学研究，表明吸附是吸热和自发的。此外，EFAC通过90％乙醇溶液表现出良好的再生性能。 EFAC是一种低成本和环保的吸附剂，用于去除废水中的有机污染物。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号