Abstract Amino-grafted Mobil Composition of Matter N. 41 (MCM-41/NH2) and Santa Barbara Amorphous (SBA-15/NH2) type mesoporous adsorbents were successfully used and compared in this work to remove azo dyes (and their mixture) from highly colored solutions. This paper reports a very fast removal and recycle (in 5 min) of great amounts of textile dyes (about the 100%) by materials characterized by high adsorption/desorption capacities. A qmax ≈ 250 mg/g for each adsorption cycle, that should be potentially increase to ≈ 1250 mg/g, under appropriate experimental conditions, was found for the proposed adsorbents. The UV–Vis absorption spectra of dyes were used to support this finding, determining the rate of adsorption. Several parameters affecting the adsorption process were investigated: the contact time, dyes solution pH values and amount of the adsorbent materials, ranging from 0.4 mg to 12 mg, and dyes (5 × 10−5 M and 1 × 10−5 M). Further, the Nitrogen adsorption/desorption isotherms, SAXS patterns, TG analyses, Zeta-potential measurements and microscopic imaging techniques, such as SEM and TEM, were used to detail the nature of interaction between dyes and adsorbents, and to investigate the morphology and the mesoporous array of the amino grafted MCM-41 and SBA-15.

中文翻译：

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氨基接枝介孔 MCM-41 和 SBA-15 可回收吸附剂：沙漠玫瑰花瓣状 SBA-15 类型是从水中去除偶氮纺织染料及其混合物最有效的类型

摘要 氨基接枝 Mobil Composition of Matter N. 41 (MCM-41/NH2) 和 Santa Barbara Amorphous (SBA-15/NH2) 型介孔吸附剂在这项工作中被成功地使用和比较，以去除偶氮染料（及其混合物）。高度着色的溶液。本文报道了通过具有高吸附/解吸能力的材料非常快速地去除和回收大量纺织染料（约 100%）（在 5 分钟内）。对于建议的吸附剂，发现每个吸附循环的 qmax ≈ 250 mg/g，在适当的实验条件下，这应该可能增加到 ≈ 1250 mg/g。染料的紫外-可见吸收光谱用于支持这一发现，确定吸附速率。研究了影响吸附过程的几个参数：接触时间、染料溶液的 pH 值和吸附材料的量，范围从 0.4 mg 到 12 mg，以及染料（5 × 10−5 M 和 1 × 10−5 M）。此外，氮吸附/解吸等温线、SAXS 模式、TG 分析、Zeta 电位测量和显微成像技术，如 SEM 和 TEM，被用来详细描述染料和吸附剂之间相互作用的性质，并研究形态和氨基接枝的 MCM-41 和 SBA-15 的介孔阵列。