Abstract Biomimetic mineralization is one of the effective methods for synthesizing functional materials with specific shape structures, and the raw materials required for the process are cheap and readily available. Here we designed a novel method, in which graphene oxide assisted biomimetic mineralization to prepare a biomimetic-coral structural material with the characteristics of sensing and capturing metal ions. The coral-like structure featured tight, fine and uniform channels for efficient provided plentiful adsorption sites while exposing various functional groups such as -OH, -COOH. The maximum theoretical adsorption capacity of the material was calculated by the Langmuir model. About 88.3% of Cu(II) was adsorbed rapidly within a contact time of 30 min, and the maximum adsorption capacity was 198.8 mg g−1 at pH = 6 and T = 298 K. The adsorption mechanism was proved that chelation was the dominant governing mechanism for copper ions adsorption on the material.

中文翻译：

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蒙脱石基纳米材料的仿生矿化可有效捕获铜离子

摘要 仿生矿化是合成具有特定形状结构的功能材料的有效方法之一，该工艺所需的原材料价格低廉，易得。在这里，我们设计了一种新方法，其中氧化石墨烯辅助仿生矿化制备具有传感和捕获金属离子特性的仿生珊瑚结构材料。珊瑚状结构具有紧密、精细和均匀的通道，有效地提供了丰富的吸附位点，同时暴露了各种官能团，如-OH、-COOH。材料的最大理论吸附容量由朗缪尔模型计算。在 30 分钟的接触时间内，大约 88.3% 的 Cu(II) 被快速吸附，在 pH = 6 和 T = 298 K 时，最大吸附容量为 198.8 mg g-1。