School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
J Hazard Mater. 2010 Apr 15;176(1-3):1118-21. doi: 10.1016/j.jhazmat.2009.11.134. Epub 2009 Dec 1.
Decolorization of reactive azo dye, reactive black 5 (RB5), was conducted using Fe(III) immobilized on Montmorillonite K10 (MK10) as a catalyst in the presence of H(2)O(2) using Fenton-like oxidation process. The effect of different parameters such as iron ions loading on supported catalyst, catalyst dosage, initial pH of dye solution, initial concentration of H(2)O(2) and dye and reaction temperature on the decolorization efficiency of the process were studied. The results indicated that by using 12 mM of H(2)O(2) and 3.50 g L(-1) of the 0.11 wt.% Fe(III) oxide on MK10 catalyst at pH of 2.5, 99% of decolorization efficiency was achieved within 150 min in a batch process.
采用 Fenton 类似氧化法，用负载在蒙脱石 K10（MK10）上的三价铁（Fe(III)）作为催化剂，在 H(2)O(2)的存在下对活性偶氮染料活性黑 5（RB5）进行脱色处理。研究了不同参数对该过程的脱色效率的影响，这些参数包括负载在载体上的铁离子、催化剂用量、染料溶液初始 pH 值、H(2)O(2)初始浓度、染料初始浓度和反应温度。结果表明，在批处理过程中，当使用 12 mM 的 H(2)O(2)和 3.50 g L(-1)负载量为 0.11 wt.% 的三价铁氧化物的 MK10 催化剂，在 pH 值为 2.5 的条件下，150 min 内可达到 99%的脱色效率。
