A facile interfacial construction strategy of hierarchically distributed mixed-metal layered hydroxide/cellulose membranes towards efficient wastewater purification

• Published in: Green chemistry : an international journal and green chemistry resource : GC Vol. 25; no. 21; pp. 873 - 874
• Main Authors: Zhang, Shuo, Shu, Liping, Fang, Haohang, Zhu, Weizhi, Sun, Jianping, Yang, Fang, Wu, Yiqiang, Shi, Shaohong, Cheng, Fangchao
• Format: Journal Article
• Published: 30.10.2023
• ISSN: 1463-9262; 1463-9270
• DOI: 10.1039/d3gc02339g

Layered metal hydroxides have attracted much attention because of their excellent photocatalytic performance, but it is still a great challenge to realize the efficient preparation and distributed manipulation of mixed-metal layered hydroxide (MMLH) photocatalyst materials under mild conditions. Herein, a facile cellulose-enabled in situ interfacial reaction strategy was developed to construct hierarchically distributed MMLH/cellulose catalytic membranes towards efficient wastewater purification. The as-prepared membranes possessed superior water evaporation efficiency and catalytic degradation capability on pollutants, resulting in an excellent water evaporation rate of 1.58 kg m −2 h −1 and high degradation efficiency up to 100%, 89.7% and 90.9% in rhodamine B (200 mg L −1 ), bisphenol A (40 mg L −1 ) and oxytetracycline (40 mg L −1 ) environments, respectively. Trinity excellence in degradation efficiency, reaction time, and the treatment concentration of pollutants was achieved with the present systems. Thus, this study establishes a potential solar-driven water evaporation/photo-Fenton system via bi-functional MMLH-based catalytic membranes for high-efficiency wastewater purification. From material synthesis to functional evaluation, this study provides important insights into the in situ , convenient, and green synthesis of cellulose-based multifunctional catalytic materials towards efficient wastewater purification.