An alkali‐treated Mg–Al layered double hydroxide (A‐LDH) is prepared by NaOH treatment of normal Mg–Al LDH (N‐LDH) at high temperature. Four NaOH treatments are performed with N‐LDH to control the basicity of the LDHs. Among the four A‐LDHs, the A‐LDH possessing a certain basicity shows several unique characteristics that are not observed in N‐LDH. The A‐LDH induces a controlled oxidative polymerization of dopamine into spherical polydopamine (Pdop) particles and can effectively oxidize metals (Cu and Al) and nanocarbons (carbon nanotubes (CNTs) and graphite) to produce oxidized CNTs and oxidized/exfoliated graphene oxide with excellent dispersibility. These interesting phenomena are tested by simply mixing the compounds with A‐LDH at room temperature without an energy‐consuming process and toxic chemicals. Furthermore, A‐LDH exhibits excellent catalytic performances for the degradation of organic pollutants such as various azo dyes.

中文翻译：

---

碱处理的Mg-Al层状双金属氢氧化物，一般用途：氧化聚合，金属和纳米碳氧化以及污染物的催化分解

碱处理的Mg-Al层状双氢氧化物（A-LDH）是通过在高温下用NaOH处理普通Mg-Al LDH（N-LDH）制备的。用N-LDH进行四次NaOH处理，以控制LDH的碱度。在四个A-LDH中，具有一定基础性的A-LDH显示出一些在N-LDH中未观察到的独特特征。A-LDH引起多巴胺的受控氧化聚合成球形聚多巴胺（Pdop）颗粒，并且可以有效地氧化金属（铜和铝）和纳米碳（碳纳米管（CNT）和石墨）以产生氧化的CNT和氧化/剥离的氧化石墨烯。优异的分散性。这些有趣的现象通过在室温下将化合物与A-LDH轻松混合而没有耗能的过程和有毒化学物质进行测试。此外，