Silver nanoparticles (AgNPLs) impregnated onto activated carbon (AC) as an effective solid adsorbent has been used for the uptake of acid red 1 (AR) from aqueous solution. In acid medium at pH ≤ 4.0, the removal of AR is found favourable than at pH ≥ 4.0. The data approve well with Fruendlich model and pseudo second-order kinetic. Adsorption capacity calculated from Langmuir is 107.5 mg/g. Thermodynamic activation parameters suggest endothermic and spontaneous process. Silver nanoparticles enhanced uptake of AR by AC. The liquid-film and intra-particle diffusion types examined the adsorption mechanism. Removal of AR from AC-AgNPLs surface carried out to illustrate the recapture of the adsorbent and adsorbate for the economic value of the remediation system. The solid phase extractor is excellent recovered for six consecutive sorption–adsorption round elucidate its rise reused.

中文翻译：

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银纳米粒子处理活性炭作为从水性介质中去除酸性红 1 染料的有效吸附剂：动力学和平衡研究

浸渍到活性炭 (AC) 上的银纳米粒子 (AgNPL) 作为有效的固体吸附剂已用于从水溶液中吸收酸性红 1 (AR)。在 pH ≤ 4.0 的酸性介质中，发现 AR 的去除比 pH ≥ 4.0 更好。数据与 Fruendlich 模型和伪二级动力学一致。从朗缪尔计算的吸附容量为 107.5 毫克/克。热力学活化参数表明吸热和自发过程。银纳米粒子增强了 AC 对 AR 的吸收。液膜和颗粒内扩散类型检查了吸附机制。从 AC-AgNPL 表面去除 AR 以说明吸附剂和吸附物的重新捕获对于修复系统的经济价值。