콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Alkali-Treated Mg–Al Layered Double Hydroxides for General Use: Oxidative Polymerization, Metal and Nanocarbon Oxidation, and Catalytic Decomposition of Pollutants
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2018-10
- 저자명 Nara Han, Byung Kwon Kaang, and Won San Choi*
- 학술지명 Adv. Mater. Interfaces
- 발행처명 Wiley
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
- 논문 다운로드 링크(외부) https://doi.org/10.1002/admi.201801366
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
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.
