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Production of martite nanoparticles with high energy planetary ball milling for heterogeneous Fenton-like process

机译：具有高能量行星球磨的马丁纳米粒子的生产，用于异构Fenton样方法

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摘要

Natural martite microparticles (NMMs) were prepared with a high energy planetary ball mill to form a nanocatalyst for a Fenton-like process. Martite nanoparticles (MNs) of different scales are formed when the milling time ranges from 1 to 5 h at the milling speed of 300 rpm. The catalytic performances of MNs are higher than the NMMs for the degradation of acid blue 5 (AB5) in a heterogeneous Fenton- like process. The NMMs and the MNs were characterized by SEM, EDX, BET, XRD and FT-IR analyses. The size distribution of the 5 h milled martite nanoparticles (MN3) is in the range of 20 nm to 100 nm, and these have the highest surface area (19.23 m(2) g(-1)). The influence of the main operational parameters, including initial pH, MN3 dosage, H2O2 and initial dye concentration, were investigated on the AB5 degradation. The treatment process obeys pseudo first order kinetics and some of the degradation intermediates were recognized by the GC-MS method. The environmentally-friendly production of the MNs, low amount of leached iron and repeated catalyst usage are the significant advantages of this research. Finally, an artificial neural network (ANN) is expanded to estimate the degradation efficiency of AB5 on the basis of the experimental results, which indicates the appropriate performance (R-2 = 0.955).
机译：用高能量行星球磨机制备天然刚性微粒（NMMS），以形成纳米催化剂的纳米催化剂。当铣削时间以300rpm的铣削速度为1至5h的铣削时间为1至5h时，形成不同鳞片的马丁纳米颗粒（MNS）。 MNS的催化性能高于酸蓝5（AB5）在异质的FENTON样方法中的NMMS。通过SEM，EDX，BET，XRD和FT-IR分析表征NMMS和MNS。 5 H铣制纳米颗粒（MN3）的尺寸分布在20nm至100nm的范围内，这些具有最高的表面积（19.23m（2）g（-1））。研究了主要操作参数，包括初始pH，MN3剂量，H 2 O 2和初始染料浓度的影响，对AB5降解研究。通过GC-MS方法识别治疗过程obeys伪第一阶动力学和一些降解中间体。环境友好的MNS生产，低浸出的铁和重复催化剂使用量是该研究的显着优势。最后，扩展了人工神经网络（ANN）以基于实验结果来估计AB5的降解效率，这表明了适当的性能（R-2 = 0.955）。

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  • 来源
    《RSC Advances》 |2016年第84期|共12页
  • 作者

    Rahmani Amir; Khataee Alireza; Kaymak Baris; Vahid Behrouz; Fathinia Mehrangiz; Dindarsafa Mahsa;

  • 作者单位

    Middle East Tech Univ Dept Environm Engn TR-06800 Ankara Turkey;

    Univ Tabriz Fac Chem Dept Appl Chem Res Lab Adv Water &

    Wastewater Treatment Proc Tabriz 5166616471 Iran;

    Middle East Tech Univ Dept Environm Engn TR-06800 Ankara Turkey;

    Islamic Azad Univ Tabriz Branch Dept Chem Engn Tabriz 5157944533 Iran;

    Univ Tabriz Fac Chem Dept Appl Chem Res Lab Adv Water &

    Wastewater Treatment Proc Tabriz 5166616471 Iran;

    Middle East Tech Univ Dept Environm Engn TR-06800 Ankara Turkey;

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  • 正文语种 eng
  • 中图分类 化学;
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