Manganese disulfide-silicon dioxide nano-material: Synthesis, characterization, photocatalytic, antioxidant and antimicrobial studies

Muhammad Aqeel Ashraf; Wan-Xi Peng; Ali Fakhri; Mojgan Hosseini; Hesam Kamyab; Shreeshivadasan Chelliapan

doi:10.1016/j.jphotobiol.2019.111579

Manganese disulfide-silicon dioxide nano-material: Synthesis, characterization, photocatalytic, antioxidant and antimicrobial studies

J Photochem Photobiol B. 2019 Sep:198:111579. doi: 10.1016/j.jphotobiol.2019.111579. Epub 2019 Jul 25.

Authors

Muhammad Aqeel Ashraf¹, Wan-Xi Peng², Ali Fakhri³, Mojgan Hosseini⁴, Hesam Kamyab⁵, Shreeshivadasan Chelliapan⁶

Affiliations

¹ School of Forestry, Henan Agricultural University, Zhengzhou 450002, China; Department of Geology Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia; School of Environmental Studies, China University of Geosciences, 430074 Wuhan, China. Electronic address: aqeel@cug.edu.cn.
² School of Forestry, Henan Agricultural University, Zhengzhou 450002, China. Electronic address: pengwanxi@163.com.
³ Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran. Electronic address: ali.fakhri88@yahoo.com.
⁴ Department of Science, Islamshahr Branch, Islamic Azad University, Sayad Shirazi St. Islamshahr, Tehran, Iran.
⁵ Engineering Department, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia; Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA. Electronic address: hesam_kamyab@yahoo.com.
⁶ Engineering Department, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia.

PMID: 31401316
DOI: 10.1016/j.jphotobiol.2019.111579

Abstract

The sol-gel/ultrasonically rout produced the novel MnS2-SiO2 nano-hetero-photocatalysts with the various ratio of MnS₂. Prepared nano-catalyst were investigated in the photo-degradation of methylene blue under UV light illumination. Structural and optical attributes of as-prepared nano-catalysts were evaluated by X-ray diffraction and photoelectron spectroscopy. The morphological were studied by scanning electron microscopy-EDS, and dynamic light scattering. The diffuse reflectance spectroscopy was applied to examine the band gap energy. The E_g values of SiO₂, MnS₂-SiO₂-0, MnS₂-SiO₂-1, and MnS₂-SiO₂-2 nanocomposites are 6.51, 3.85, 3.17, and 2.67 eV, respectively. The particle size of the SiO₂ and MnS₂-SiO₂-1 nanocomposites were 100.0, and 65.0 nm, respectively. The crystallite size values of MnS₂-SiO₂-1 were 52.21 nm, and 2.9 eV, respectively. MnS₂-SiO₂ nano-photocatalyst was recognized as the optimum sample by degrading 96.1% of methylene blue from water. Moreover, the influence of pH of the solution, and contact time as decisive factors on the photo-degradation activity were investigated in this project. The optimum data for pH and time were found 9 and 60 min, respectively. The photo-degradation capacity of MnS₂-SiO₂-2 is improved (96.1%) due to the low band gap was found from UV-vis DRS. The antimicrobial data of MnS₂-SiO₂ were studied and demonstrated that the MnS₂-SiO₂ has fungicidal and bactericidal attributes.

Keywords: Biological data; MnS(2); Photocatalytic; Silicon dioxide.

MeSH terms

Anti-Infective Agents / chemical synthesis
Anti-Infective Agents / chemistry*
Anti-Infective Agents / pharmacology
Antioxidants / chemical synthesis
Antioxidants / chemistry*
Catalysis
Escherichia coli / drug effects
Fungi / drug effects
Hydrogen-Ion Concentration
Manganese Compounds / chemistry*
Methylene Blue / chemistry
Nanocomposites / chemistry*
Oxides / chemistry*
Particle Size
Silicon Dioxide / chemistry*
Streptococcus pyogenes / drug effects
Ultraviolet Rays*

Substances

Anti-Infective Agents
Antioxidants
Manganese Compounds
Oxides
Silicon Dioxide
Methylene Blue
manganese dioxide