Activate carbon (AC) demand has increased worldwide, with application in adsorption, heterogeneous catalysis, and most recently as electrocatalyst support. However, while AC production from agro-industrial waste are widely researched, textile waste is neglected as raw material. In this study, cotton fabric was first applied as textile dye adsorbent after iron impregnation, which enhanced the adsorption capacity. The dye adsorbed fabric was than sequentially pyrolyzed at 800 °C for 2 h under N₂ atmosphere, producing a magnetic mesoporous activated carbon (MAC) of 472 m² g^-1 BET surface area with 82% micropores and magnetization saturation of 34.2 emu g^-1 deriving from encapsulated metallic αFe. This new simple and fast one-step carbonization, activation and iron incorporation method, has very low chemicals consumption and waste generation compared to the traditionally applied ones. The so produced MAC was loaded with 20 % Pd and tested for electrocatalyst properties: high density current for ethanol oxidation of 549 mA mg^-1Pd, 1.37 times higher than using commercial Pd catalyst, lower onset potential of -0.48 V vs NHE. Application of the electrocatalyst for direct ethanol fuel cell achieved a high energy production of 27 mW cm^-2 at 353 K.

活性炭 (AC) 的需求在全球范围内不断增加，应用于吸附、多相催化以及最近用作电催化剂载体。然而，虽然广泛研究了从农业工业废物中生产活性炭，但纺织废物作为原材料却被忽视了。在这项研究中，棉织物首先在铁浸渍后用作纺织染料吸附剂，这增强了吸附能力。然后将吸附染料的织物在 N ₂气氛下在 800°C 下连续热解 2 小时，产生 472 m ² g ^-1 BET 表面积、82% 微孔和 34.2 emu g 磁化饱和度的磁性介孔活性炭 (MAC) ^-1源自封装的金属αFe。与传统应用相比，这种新的简单快速的一步碳化、活化和铁掺入方法具有非常低的化学品消耗和废物产生。如此生产的 MAC 负载 20% 的 Pd 并测试电催化剂性能：乙醇氧化的高密度电流为 549 mA mg ^-1 Pd，比使用商业 Pd 催化剂高 1.37 倍，-0.48 V 的起始电位低于 NHE。该电催化剂在直接乙醇燃料电池中的应用在 353 K 下实现了 27 mW cm ^-2的高能量产生。