Herein, γ-AlO(OH) as an inorganic was successfully inserted into MgAl-LDH layer by a one-pot synthesis, the composite as an adsorbent for removing methyl orange (MO) from wastewater. The structure and adsorption performance of γ-AlO(OH)/MgAl-LDH were characterized. The research shows that the expansion (003) plane and the hydroxyl active site of γ-AlO(OH)/MgAl-LDH can promote adsorption capacity and adsorption kinetics, respectively. Therefore, γ-AlO(OH)/MgAl-LDH exhibits a super adsorption performance, which completely adsorbs MO at the concentration of 1000 mg g−1. In addition, the maximum adsorption capacity of MO was 4681.40 mg g−1 according to the Langmuir model. These results indicate that γ-AlO(OH)/MgAl-LDH is a potential adsorbent for the removal of organic dyes in water.

Aluminum oxide (Al₂O₃) ceramics have been widely utilized as circuit substrates owing to their exceptional performance. In this study, boron nitride microribbon (BNMR)/Al₂O₃ composite ceramics are prepared using spark plasma sintering (SPS). This study examines the effect of varying the amount of toughened phase BNMR on the density, mechanical properties, dielectric constant, and thermal conductivity of BNMR/Al₂O₃ composite ceramics, while also exploring the mechanisms behind the toughening and increased thermal conductivity of the fabricated ceramics. The results showed that for a BNMR content of 5 wt%, BNMR/Al₂O₃ composite ceramics displayed more enhanced characteristics than pure Al₂O₃ ceramic. In particular, the relative density, hardness, fracture toughness, and bending strength were 99.95±0.025%, 34.11±1.5 GPa, 5.42±0.21 MPa·m^1/2, and 375±2.5 MPa, respectively. These values represent increases of 0.76%, 70%, 35%, and 25%, respectively compared to those of pure Al₂O₃ ceramic. Furthermore, during the SPS process, BNMRs are subjected to high temperatures and pressures, resulting in the bending and deformation of the Al₂O₃ matrix; this leads to the formation of special thermal pathways within it. The dielectric constant of the composite ceramic decreased by 25.6%, whereas the thermal conductivity increased by 45.6% compared with that of the pure Al₂O₃ ceramic. The results of this study provide valuable insights into ways of enhancing the performance of Al₂O₃-based ceramic substrates by incorporating novel BNMRs as a second phase. These improvements are significant for potential applications in circuit substrates and related fields that require high-performance materials with improved mechanical properties and thermal conductivities.

Few-layer MoS₂ was successfully grown in MgAl-LDH layers, utilizing the “space-confining” effect. The composite completed degraded 50 mg L⁻¹ and 100 mg L⁻¹ methyl orange (MO) solutions in 45 min and 105 min, respectively.