Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation
Akbar, M. U.1; Ikram, M.1; Imran, M.2; Haider, A.3; Ul-Hamid, A.4; Dilpazir, S.5; Shahzadi, I6; Nazir, G.7; Shahzadi, A.8; Nabgan, W.9,10; Haider, J.11
AbstractPhotocatalytic and magnetic stability of two-dimensional nanomaterials is enhanced by metal doping, which is an environmentally friendly technique used in various industries. There is an urgent need to discover new antimicrobial compounds or extracts to address the crucial problem of increasing microbial resistance against current antibiotics. Similarliy, the whole world is facing water crisis and a possible cost-effective solution is photocatalysis. In this study, an economical and convenient co-precipitation method was adopted to synthesize copper (Cu) loaded graphitic carbon nitride (g-C3N4) and magnesium oxide (MgO) composites. Various concentrations (2.5, 5, 7.5, and 10%) of Cu were doped into a fixed amount of g-C3N4/MgO nanostructures for efficient photocatalytic and antimicrobial activities. Results showed that 2.5% Cu loaded samples exhibited best possible results for the photocatalytic activity and 10% loaded Cu nanocomposites displayed enhanced antimicrobial performance. Improved crystallinity and increase in crystal size upon doping were confirmed with X-ray differaction (XRD) analysis, which was corroborated with Selected Area Electron Diffraction (SAED) results. Fourier-transform infrared spectroscopy (FTIR) revealed that MgO spectra consisted of stretching vibrations of Mg-O bond and other functional groups with minor changes in the vibrational modes upon doping. An high resolution transmission electron microscope (HRTEM) fitted with Gatan (R) digital software indicated hexagonal phase formation in as-prepared samples and nanorods upon doping, with confirmed d-spacing values. The UV-visible spectroscopy (UV-Vis) analysis exhibited a slight redshift in absorption intensity leading to decreased bandgap (Eg) for Cu-loaded g-C3N4/MgO. Photoluminescence (PL) spectra were acquired to investigate the recombination of electron-hole pairs. X-ray photoelectron spectroscopy (XPS) was employed to evaluate the elemental and surface composition with binding energy alterations of Cu-loaded g-C3N4/MgO nanorods. The thermal stability and behavior of synthesized samples were investigated by differential scanning calorimetry thermoanalytical (DSC) analysis. Photocatalytic activity (PCA) of as-prepared samples were evaluated against methylene blue and ciprofloxacin (MB&CF) dye in acidic, neutral and basic medium. Furthermore, the efficient antimicrobial potential was evaluated against Escherichia Coli (E. coli) and Staphylococcus aureus (S. aureus) bacteria.
KeywordCo-precipitation g-C3N4 nanorods MgO Antimicrobial XPS DSC
Funding ProjectHigher Education Commission, HEC Pakistan[21-1669/SRGP/RD/HEC/2017]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectNanoscience & Nanotechnology
Funding OrganizationHigher Education Commission, HEC Pakistan
WOS IDWOS:000799071500001
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Document Type期刊论文
Corresponding AuthorIkram, M.; Ul-Hamid, A.; Nabgan, W.
Affiliation1.Govt Coll Univ, Dept Phys, Solar Cell Applicat Res Lab, Lahore 54000, Punjab, Pakistan
2.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing Engn Ctr Hierarch Catalysts, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
3.Muhammad Nawaz Shareef Univ Agr, Fac Vet & Anim Sci, Multan 66000, Punjab, Pakistan
4.King Fahd Univ Petr & Minerals, Core Res Facil, Dhahran 31261, Saudi Arabia
5.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing, Peoples R China
6.Univ Punjab, Punjab Univ, Coll Pharm, Lahore 54000, Pakistan
7.Sejong Univ, Dept Nanotechnol & Adv Mat Engn, Seoul 05006, South Korea
8.Univ Lahore, Fac Pharm, Lahore, Pakistan
9.Univ Teknol Malaysia, Fac Engn, Sch Chem & Energy Engn, Skudai 81310, Johor, Malaysia
10.Univ Rovira & Virgili, Dept Engn Quim, Av Paisos Catalans 26, E-43007 Tarragona, Spain
11.Chinese Acad Sci, Tianjin Inst Ind Biotechnol, Tianjin 300308, Peoples R China
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Akbar, M. U.,Ikram, M.,Imran, M.,et al. Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation[J]. APPLIED NANOSCIENCE,2022:16.
APA Akbar, M. U..,Ikram, M..,Imran, M..,Haider, A..,Ul-Hamid, A..,...&Haider, J..(2022).Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation.APPLIED NANOSCIENCE,16.
MLA Akbar, M. U.,et al."Cu-loaded C3N4-MgO nanorods for promising antibacterial and dye degradation".APPLIED NANOSCIENCE (2022):16.
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