Development of p-n Heterostructures Using Phosphorene and SnO 2 : Its Efficacy toward the Adsorption Study of CO 2 and Rose Bengal Dye.

Autor: Sultana N; Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati-35, Assam 781035, India.; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India., Barman N; Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati-35, Assam 781035, India.; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India., Medhi PJ; Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati-35, Assam 781035, India.; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India., Sarma NS; Institute of Advanced Study in Science and Technology, Paschim Boragaon, Guwahati-35, Assam 781035, India.; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
Jazyk: angličtina
Zdroj: Langmuir : the ACS journal of surfaces and colloids [Langmuir] 2023 Dec 26; Vol. 39 (51), pp. 18946-18957. Date of Electronic Publication: 2023 Nov 24.
DOI: 10.1021/acs.langmuir.3c02864
Abstrakt: Adsorption-mediated methods for environmental pollution control are suitable as they are cost-effective and easy to use. Porous materials can play an important role in adsorption studies. Herein, we synthesized a p-n heterostructure of phosphorene and metal oxide using a simple hydrothermal approach. The synthesized material is porous in nature, with a surface area of 127.44 m 2 /g and pore volume of about 1.73 nm with appreciable thermal stability. As the material is microporous, we used it for the adsorption of CO 2 gas and dye. For CO 2 adsorption, we determined the CO 2 gas uptake according to the mass balance principle of the ideal gas equation, and it was found to be about 21.478 mol/kg. We have also studied different isotherm models to check the adsorption phenomena. Moreover, for dye adsorption, we have chosen the xanthene-derived rose bengal (RB) dye, which shows a removal percentage of about 92.02%. In the case of dye adsorption, the material shows good reusability and significant adsorption up to five cycles.
Databáze: MEDLINE