The facile synthesis of the advanced cobalt-based materials [1.0Co/Al₂O₃ (A), 0.5Co/Al₂O₃ (B), 3.5CoNaY (C) and 0.4CoHY (D)] is reported. The characterization of the materials was carried out by X-ray photoelectronic, energy-dispersive X-ray, atomic absorption and low-temperature nitrogen adsorption methods. These materials were used for a comparative degradative and adsorptive removal of carmoisine azo dye in water. The adsorptive and degradative removals were 62.0–96.1% and 68.1–96.1% for all four materials. The degradation was occurred by hydroxyl radicals and peroxy free radicals. The adsorptive removal followed Langmuir, Temin and Dubinin–Radushkevich models. The adsorption obeyed pseudo-first-order kinetics and liquid film diffusion mechanism. The results indicated that both degradative and adsorptive phenomena had comparative removal capacities. The removal capacities of all four materials were C > A > D > B. The maximum removal was obtained by material C (96.1%) and A (90.0%) in a wide pH range of 3.0–9.0. The reported methods are very effective, efficient and inexpensive for the removal of carmoisine azo dye in water. These methods may be used to remove the reported dye at a large scale in any water resource.

先进钴基材料的简便合成[1.0Co/Al ₂ O ₃ (A), 0.5Co/Al ₂ O ₃(B)、3.5CoNaY (C) 和 0.4CoHY (D)]。通过X射线光电子学、能量色散X射线、原子吸收和低温氮吸附等方法对材料进行表征。这些材料用于比较降解和吸附去除水中的胭脂红偶氮染料。所有四种材料的吸附和降解去除率为 62.0-96.1% 和 68.1-96.1%。降解是由羟基自由基和过氧自由基发生的。吸附去除遵循 Langmuir、Temin 和 Dubinin-Radushkevich 模型。吸附服从准一级动力学和液膜扩散机制。结果表明，降解和吸附现象都具有相当的去除能力。所有四种材料的去除能力为 C > A > D > B。材料 C (96.1%) 和 A (90.0%) 在 3.0-9.0 的宽 pH 范围内获得最大去除率。报道的方法对于去除水中的胭脂红偶氮染料非常有效、高效且廉价。这些方法可用于在任何水资源中大规模去除报告的染料。