Synthesis of functionalized mesoporous Ni-SBA-16 decorated with MgO nanoparticles for Cr (VI) adsorption and an effective catalyst for hydrodechlorination of chlorobenzene. (January 2021)

• Record Type: Journal Article
• Authors: Hussain, Ali Athar; Nazir, Sadia; Irshad, Rabia; Tahir, Kamran; Raza, Muslim; Khan, Zia Ul Haq; Khan, Arif Ullah
• Is Part Of: Materials research bulletin. Volume 133(2021)
• Publication Date: 2021-01
• Subjects: Hydrothermal method -- MgO/Ni-SBA-16 -- Cr(VI) adsorption -- hydrodechlorination of chlorobenzene -- Kinetic study; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2020.111059
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Schematic representation of the detail Synthesis of SBA-16, Ni-SBA-16 and MgO/Ni-SBA-16. Highlights: Synthesis of new active nanostructure material SBA-16, Ni-SBA-16 and MgO/Ni-SBA-16. Novel Hydrothermal and Precipitation methods were followed. The prepared nanomaterial was tested for water purification i.e. Chromium removal from water. Different factors effecting the adsorption of Chromium were studied. The synthesized nanostructures were also studied for hydrodechlorination of chlorobenzene. Abstract: In this research work the impact of MgO promoter tested on Ni-SBA-16 efficiency in aqueous media as an adsorbent for Cr(VI) and an effective catalyst for hydrodechlorination of chlorobenzene. New hydrothermal procedures were applied for the synthesis of Ni-SBA-16 and MgO/Ni-SBA-16 respectively. Results revealed that nanocomposites containing Ni nanocrystals of an average size distributed homogeneously within the pores of the amorphous silica matrix and also MgO was effectively coated on Ni-SBA-16 mesoporous silica walls, and that the mesoporous Ni-SBA-16 structure has been well preserved upon modification of MgO. The catalyst analysis results showed high interaction of unpromoted and MgO promoted catalyst Ni-SBA-16 as hydrodechlorination of chlorobanzene (≈ 96%) remained stable for 6 hours. The synthesized nanostructures were tested against Cr(VI) removal. 100% Cr(VI) adsorption was noted using 4 g/L and 200 mg/L of nanostructure and Cr(VI) respectively at temperature 75 °C, contact time 100 min and pH 3.