Hierarchical Pore Engineering in Al 2 O 3 /UiO‐66 Nanoarchitectures Synergistic Enhancement for Superior Phosphate Capture From Water

作者：Yu Cao, Xuan Zhou, Yu‐Ting Lin, Yirong Wang, Yihao Wang, Jianhua Hou, Xiaozhi Wang · 发表于：Chemistry - An Asian Journal · 年份：2025 · DOI：10.1002/asia.202500976 · 被引用次数：2 · 研究领域：Phosphorus and nutrient management、Layered Double Hydroxides Synthesis and Applications、Adsorption and biosorption for pollutant removal

ABSTRACT In this study, a hierarchical porous (HP) Al 2 O 3 /HP‐UiO‐66 composite was prepared via a facile template and solvothermal strategy. The material exhibits a high adsorption capacity for phosphate, with a maximum theoretical value of 303 mg/g based on the Langmuir model—eight times greater than that of the original UiO‐66. It also displays excellent selectivity for phosphate over common ions in domestic wastewater, along with a wide pH stability range (2–10) and rapid adsorption equilibrium, reaching saturation within 90 min. Moreover, the composite maintains over 85% of its adsorption efficiency after six cycles. These results demonstrate that Al 2 O 3 /HP‐UiO‐66 possesses enhanced adsorption capacity, faster kinetics, improved acid–base resistance, and superior selectivity, highlighting its potential for effective phosphate removal from wastewater.