PMID- 30076473 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230928 IS - 1931-7573 (Print) IS - 1556-276X (Electronic) IS - 1556-276X (Linking) VI - 13 IP - 1 DP - 2018 Aug 3 TI - Influence of Mg Doping on ZnO Nanoparticles for Enhanced Photocatalytic Evaluation and Antibacterial Analysis. PG - 229 LID - 10.1186/s11671-018-2643-x [doi] LID - 229 AB - In this research, a facile co-precipitation method was used to synthesize pure and Mg-doped ZnO nanoparticles (NPs). The structure, morphology, chemical composition, and optical and antibacterial activity of the synthesized nanoparticles (NPs) were studied with respect to pure and Mg-doped ZnO concentrations (0-7.5 molar (M) %). X-ray diffraction pattern confirmed the presence of crystalline, hexagonal wurtzite phase of ZnO. Scanning electron microscope (SEM) images revealed that pure and Mg-doped ZnO NPs were in the nanoscale regime with hexagonal crystalline morphology around 30-110 nm. Optical characterization of the sample revealed that the band gap energy (E(g)) decreased from 3.36 to 3.04 eV with an increase in Mg(2+) doping concentration. Optical absorption spectrum of ZnO redshifted as the Mg concentration varied from 2.5 to 7.5 M. Photoluminescence (PL) spectra showed UV emission peak around 400 nm. Enhanced visible emission between 430 and 600 nm with Mg(2+) doping indicated the defect density in ZnO by occupying Zn(2+) vacancies with Mg(2+) ions. Photocatalytic studies revealed that 7.5% Mg-doped ZnO NPs exhibited maximum degradation (78%) for Rhodamine B (RhB) dye under UV-Vis irradiation. Antibacterial studies were conducted using Gram-positive and Gram-negative bacteria. The results demonstrated that doping with Mg ions inside the ZnO matrix had enhanced the antibacterial activity against all types of bacteria and its performance was improved with successive increment in Mg ion concentration inside ZnO NPs. FAU - Pradeev Raj, K AU - Pradeev Raj K AD - Department of Physics, CSI College of Engineering, Ooty, 643215, India. AD - Research and Development Centre, Bharathiar University, Coimbatore, 641046, India. FAU - Sadaiyandi, K AU - Sadaiyandi K AD - Department of Physics, Government Arts College for Women, Nilakkottai, Dindigul, 624202, India. FAU - Kennedy, A AU - Kennedy A AD - Department of Physics, CSI College of Engineering, Ooty, 643215, India. FAU - Sagadevan, Suresh AU - Sagadevan S AD - Centre for Nanotechnology, AMET University, Kanathur, Chennai, Tamil Nadu, 602 105, India. drsureshnano@gmail.com. AD - Department of Physics, Center for Defence Foundation Studies, National Defence University of Malaysia, Kuala Lumpur, Malaysia. drsureshnano@gmail.com. FAU - Chowdhury, Zaira Zaman AU - Chowdhury ZZ AD - Nanotechnology and Catalysis Research Centre, University of Malaya, Kuala Lumpur, 50603, Malaysia. zaira.chowdhury76@gmail.com. FAU - Johan, Mohd Rafie Bin AU - Johan MRB AD - Nanotechnology and Catalysis Research Centre, University of Malaya, Kuala Lumpur, 50603, Malaysia. FAU - Aziz, Fauziah Abdul AU - Aziz FA AD - Department of Physics, Center for Defence Foundation Studies, National Defence University of Malaysia, Kuala Lumpur, Malaysia. FAU - Rafique, Rahman F AU - Rafique RF AD - Rutgers Cooperative Extension Water Resources Program, Rutgers, The State University of New Jersey, New Brunswick, USA. FAU - Thamiz Selvi, R AU - Thamiz Selvi R AD - Department of Chemistry, LRG Government Arts College for Women, Tiruppur, 641 604, India. FAU - Rathina Bala, R AU - Rathina Bala R AD - Research and Development Centre, Bharathiar University, Coimbatore, 641046, India. LA - eng GR - Grant No. RP044C-17AET and RP044D-17AET/University of Malaya, Malaysia/ PT - Journal Article DEP - 20180803 PL - United States TA - Nanoscale Res Lett JT - Nanoscale research letters JID - 101279750 PMC - PMC6081874 OTO - NOTNLM OT - Antibacterial study OT - Mg-doped ZnO nanoparticles OT - Optical study OT - Photocatalytic evaluation OT - Structural study COIS- COMPETING INTERESTS: The authors declare that they have no competing interests. PUBLISHER'S NOTE: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. EDAT- 2018/08/05 06:00 MHDA- 2018/08/05 06:01 PMCR- 2018/08/03 CRDT- 2018/08/05 06:00 PHST- 2018/05/29 00:00 [received] PHST- 2018/07/26 00:00 [accepted] PHST- 2018/08/05 06:00 [entrez] PHST- 2018/08/05 06:00 [pubmed] PHST- 2018/08/05 06:01 [medline] PHST- 2018/08/03 00:00 [pmc-release] AID - 10.1186/s11671-018-2643-x [pii] AID - 2643 [pii] AID - 10.1186/s11671-018-2643-x [doi] PST - epublish SO - Nanoscale Res Lett. 2018 Aug 3;13(1):229. doi: 10.1186/s11671-018-2643-x.