Strong Hollow Spherical La2NiO4 Photocatalytic Microreactor for Round-the-Clock Environmental Remediation

• Published in: ACS applied materials & interfaces Vol. 11; no. 29; pp. 25967 - 25975
• Main Authors: Tao, Ying, Wu, Ling, Zhao, Xiaolong, Chen, Xiaofeng, Li, Ruping, Chen, Ming, Zhang, Dieqing, Li, Guisheng, Li, Hexing
• Format: Journal Article
• Language: English
• Published: American Chemical Society 24.07.2019
• Subjects: La2NiO4; hollow; round-the-clock; pollutants; degrade
• ISSN: 1944-8244; 1944-8252
• DOI: 10.1021/acsami.9b07216

This work reports a moderate round-the-clock route to treating organic pollutants by utilizing a La2NiO4 hollow-sphere microreactor. A glycerol-assisted solvothermal route followed by an annealing process was applied for fabricating the catalyst. Both the physicochemical properties and the catalytic performance of the as-obtained microreactor for treating pollutants were discussed. The microreactor exhibited a strong ability to degrade phenol and anionic dyes in the absence of light irradiation, owing to its high surface area and positively charged surface. With the aid of visible-light irradiation, the degradation rate of the organic pollutants could be further accelerated due to the light multireflection in a hollow structure, which enhances the utilization of light. The present work indicates that the hollow-sphere La2NiO4 microreactor is effectively energy saving for environmental remediation.