A new approach to the synthesis of CuMoO4 nanoparticles with mechanistic insight into the sunlight-assisted degradation of textile pollutants and antibacterial activity evaluation
Alabada R. Ayub A. Ajaj Y. Bhat S.I. Alshammari R.H. Abduldayeva A. Mallhi A.I. Ahmad Z. Mohamed R.M.K.
15 March 2024Elsevier Ltd
Journal of Alloys and Compounds
2024#977
CuMoO4 nanoparticles (NPs) were synthesized by a thermal decomposition followed by a precipitation method. Analytical techniques such as FE-SEM, EDS, HR-TEM, XRD, FTIR, UV–visible, PL, and XPS were used to characterize the structural, optical, and photocatalytic properties of CuMoO4. As per XRD analysis, the structure of CuMoO4 NPs with different Cu concentrations was consistent, however, their crystallinities were changed. The band gap of CuMoO4 with various concentrations of Cu (0.1, 0.2, and 0.3 M) was estimated to be 1.97 eV, 1.86 eV, and 1.44 eV, respectively. The electrical conductivity of 0.3 M CuMoO4 NPs was greater than other synthesized nanocomposites. Methylene Blue (MB) mineralization in an aqueous medium after 180 min of exposure to sunlight was investigated to study the photocatalytic activities of all CuMoO4 composites. As per the PL study, the 0.3 M CuMoO4 NPs exhibited better photocatalytic efficiency due to their low electron-hole recombination rate. Experimental parameters like the MB concentration, catalyst dosage, and the solution pH were evaluated to optimize the experimental conditions. The in-situ capture analysis proposed a plausible mechanism for the photocatalytic degradation of MB. The two main active species identified for MB degradation were superoxide radical anions and hydroxyl radicals. The repeated photocatalytic MB degradation verified the high level of reusability of 0.3 M CuMoO4. The well-diffusion technique was utilized to examine the antibacterial activity of 0.3 M CuMoO4 NPs against gram-positive (Salmonella typhi) and gram-negative (Streptococcus mutans) bacterial strains. The optimized CuMoO4 showed excellent promise for application in the field of photocatalysis, electrocatalytic and antibacterial activity.
AOP , Band gap , CuMoO4 , Degradation , Thermal decomposition
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Al-Muthanna University, College of Nursing, Muthanna State, Samawah, 66001, Iraq
Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
Engineering Department, Faculty of Engineering and Computer Science, German University of Technology, Halban, Oman
Department of Chemistry, NMAM Institute of Technology, Karnataka, Nitte, 574110, India
Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
Department of Research Institute of Preventive Medicine named Academician E.Dalenov, Astana Medical University, Astana, 010000, Kazakhstan
Department of Applied Chemistry, Government College University Faisalabad, Punjab, 38000, Pakistan
School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, 38541, Gyeongbuk, South Korea
Department of Chemistry, Faculty of Science, Assiut University, P.O. Box, 71515, Assiut, Egypt
Al-Muthanna University
Institute of Chemistry
Engineering Department
Department of Chemistry
Department of Chemistry
Department of Research Institute of Preventive Medicine named Academician E.Dalenov
Department of Applied Chemistry
School of Chemical Engineering
Department of Chemistry
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