Facile Ultrasonic Synthesis of Zirconium Based Porphyrinic MOFs for Enhanced Adsorption Performance Towards Anionic and
- PDF / 3,942,397 Bytes
- 12 Pages / 595.276 x 790.866 pts Page_size
- 1 Downloads / 184 Views
Facile Ultrasonic Synthesis of Zirconium Based Porphyrinic MOFs for Enhanced Adsorption Performance Towards Anionic and Mixed Dye Solutions Roya Hariri1 · Saeed Dehghanpour1 · Samaneh Sohrabi1 Received: 31 March 2020 / Accepted: 10 August 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract A porphyrinic mesoporous metal–organic framework (PCN-222(M) (M = Mn, Fe, Cu)) has been synthesized by a simple sonochemical preparation method without high temperature in a short period of time. The ultrasonic method for the preparation of PCN-222(M) was found to be an efficient procedure with a good quantitative yield (PCN-222(M)-U). Harmful cationic and anionic dyes have been removed from wastewater using PCN-222(M). The comparative study of the influences of metalloporphyrin and non-metal porphyrin frameworks (PCN-222) on the adsorption process has been performed. Remarkably high adsorption capacity over PCN-222(M) for the anionic dyes is reported. The porphyrinic metal center of frameworks and pH values affected dye adsorption capacity, indicating the effective role of electrostatic interactions on dye adsorption. Due to the aggregation of MB and MO, a significant increase in the adsorption capacity was observed in a mixture of MB-MO solution at pH 7. High adsorption capacity over PCN-222(M) has been estimated using Langmuir and Freundlich equations. The adsorption kinetics, thermodynamic parameters, stability and reusability of adsorbents have also been reported. The stability of PCN-222(M) in water over three months was investigated (PCN-222(M)-3).
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10904-020-01704-5) contains supplementary material, which is available to authorized users. * Saeed Dehghanpour [email protected] 1
Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, Iran
13
Vol.:(0123456789)
Journal of Inorganic and Organometallic Polymers and Materials
Graphic Abstract
Keywords MOF · PCN-222(M) (M = Mn, Fe, Cu) · Metalloporphyrin · Ultrasound synthesis · Dye adsorption · Adsorption isotherms
1 Introduction During the last decade, the world has witnessed a severe rise in environmental pollution [1, 2]. One of the major types of environmental pollutions is water pollution, which is caused by a wide range of chemicals [3]. The toxicity of dyes and inappropriate discharge of such wastes play major roles in water pollution and the spread of diseases [4, 5]. Dye adsorption is a popular process to remove toxic dyes from water [6–8]. It is essential to develop high capacity adsorbents in order to remove organic pollutants [9]. Different adsorbents such as activated carbon, carbon nanotubes, zeolites, graphene, and metal–organic frameworks (MOFs) have been used to treat industrial wastewaters [10, 11]. Among the conventional adsorbents, MOFs are wellknown due to their high surface area, porosity and stability [12], which make them good candidates for prospective applications suc
Data Loading...
