A novel approach based on the ultrasonic-assisted microwave method for the efficient synthesis of Sc-MOF@SiO2 core/shell nanostructures for H2S gas adsorption: A controllable systematic study for a green future

Khursheed Muzammil; Reena Solanki; Ayad F Alkaim; Rosario Mireya Romero Parra; Holya A Lafta; Abduladheem Turki Jalil; Reena Gupta; Ali Thaeer Hammid; Yasser Fakri Mustafa

doi:10.3389/fchem.2022.956104

A novel approach based on the ultrasonic-assisted microwave method for the efficient synthesis of Sc-MOF@SiO₂ core/shell nanostructures for H₂S gas adsorption: A controllable systematic study for a green future

Front Chem. 2022 Oct 10:10:956104. doi: 10.3389/fchem.2022.956104. eCollection 2022.

Authors

Khursheed Muzammil¹, Reena Solanki², Ayad F Alkaim³, Rosario Mireya Romero Parra⁴, Holya A Lafta⁵, Abduladheem Turki Jalil⁶, Reena Gupta⁷, Ali Thaeer Hammid⁸, Yasser Fakri Mustafa⁹

Affiliations

¹ Department of Public Health, College of Applied Medical Sciences, Khamis Mushait Campus, King Khalid University, Abha, Saudi.
² Department of Chemistry, Dr. A. P. J. Abdul Kalam University, Indore, Madhya Pradesh, India.
³ Chemistry Department College of Science for Women University of Babylon, Hillah, Iraq.
⁴ Universidad Continental Lima, Lima, Perú.
⁵ Department of Pharmacy, Al Nisour University College, Baghdad, Iraq.
⁶ Medical Laboratories Techniques Department, Al Mustaqbal University College, Babylon, Iraq.
⁷ Institute of Pharmaceutical Research, GLA University, Mathura, India.
⁸ Computer Engineering Techniques Department, Faculty of Information Technology, Imam Ja'afar Al Sadiq University, Baghdad, Iraq.
⁹ Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, Iraq.

Abstract

In this work, for the first time, novel Sc-MOF@SiO₂ core/shell nanostructures have been synthesized under the optimal conditions of ultrasonic-assisted microwave routes. The final products showed small particle size distributions with homogeneous morphology (SEM results), high thermal stability (TG curve), high surface area (BET adsorption/desorption techniques), and significant porosity (BJH method). The final nanostructures of Sc-MOF@SiO₂ core/shell with such distinct properties were used as a new compound for H₂S adsorption. It was used with the systematic investigation based on a 2^K-1 factorial design, which showed high-performance adsorption of about 5 mmol/g for these novel adsorbents; the optimal experimental conditions included pressure, 1.5 bar; contact time, 20 min; and temperature, 20°C. This study and its results promise a green future for the potential control of gas pollutants.

Keywords: H2S gas; adsorption process; core/shell nanostructures; sc-MOF@SiO2; ultrasonic assisted microwave.