Synthesis of large pore sized mesoporous carbon using alumina-templated strategy for high-performance RhB removal

• Published in: Microporous and mesoporous materials Vol. 318; p. 110993
• Main Authors: Wang, Xuhui, Chen, Shuaiqi, Sun, Jianchuan, Zhang, Dehao, Yan, Zhihui, Xu, Xiangyu, Song, Jiaqing
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.04.2021
• Subjects: Alumina-templated; Large pore size; Mesoporous carbon; Rhodamine B removal; Large pore size; Rhodamine B removal; Alumina-templated; Mesoporous carbon
• ISSN: 1387-1811; 1873-3093
• DOI: 10.1016/j.micromeso.2021.110993

The mesoporous carbon dye adsorption materials were synthesized through a simple alumina-templated strategy. The morphology and structure were characterized by Xray diffraction, transmission electron microscopy, nitrogen adsorption–desorption and adsorption capacities of rhodamine B (RhB) were also tested. The results showed that the mesoporous carbon materials exhibit large BET surface area (1093.1 m2·g−1), large pore volume (3.03 cm3·g−1) and large pore size (21.9 nm) due to the consistence pore structure of carbon material and the template nanosheet γ -alumina. Therefore, the mesoporous carbon had high equilibrium adsorption amounts (374.3 mg·g−1) and fast adsorption rate of RhB (317.8 mg·g−1 at 5 min). We also explore the kinetic studies of carbon materials for RhB adsorption, indicating that the kinetics module fit the pseudo-second-order kinetic model and Langmuir model for isothermal adsorption theory. This study promotes a high efficient material for RhB dye adsorption and a promising candidate for toxic dye wastewater treatments. [Display omitted] •Phosphorus-modified method provide improvements for alumina template on specific surface area and pore size.•CCAP inherited the superior pore structural of alumina template and had a high mesopore ratio.•CCAP exhibits well efficient adsorption performance for RhB.