Effect of tartaric acid on the microstructure and photoluminescence of SrTiO3:Pr3+ phosphors prepared by a sol–gel method

Sol–Gel Synthesis and Photo‐Fenton‐Like Catalytic Activity of EuFeO3 Nanoparticles

“…A stable sol was then obtained by adding tartaric acid with 1:1 molar ratio to the metal nitrates. It has been reported that there are carboxylate (–COOH) and hydroxyl (–OH) functional groups existing in the tartaric acid molecular structure HOOC(CHOH) 2 COOH, which can act as bidentate ligands and establish polynuclear complex with metals 22–24 . Thus, using of tartaric acid may offer the opportunity for different kinds of ions coming in close proximity, leading to high degree of homogeneity with small particle size and high surface area.…”

Characterization and study of antibacterial activity of spray pyrolysed ZnO:Al thin films

“…The enhancement of PL intensity by doping with 1 at.% of Al can be attributed to the improvement of the crystallinity as observed from XRD patterns and also to the charge compensation due to the presence of Al (Anandhi et al 2013).The increase in the intensity of NBE emission observed for pure ZnO and 1 at.% Al-doped ZnO films originates from lesser defects or/and preferred orientation along (002) (Chen et al 2009). The decrease in PL intensity for Al concentrations above 2 at.% reflects a possible lattice distortion or the formation of new phases (small amount of impurities that cannot be detected within the resolution of the X-ray diffractometer) due to higher Al doping (He et al 2010). The absence of green emission shows the decreased oxygen vacancies and the improved crystallinity (Anandhi et al 2013).…”

Evaluation of bactericidal potential and catalytic dye degradation of multiple morphology based chitosan/polyvinylpyrrolidone-doped bismuth oxide nanostructures

“…20 Numerous metal oxide nanomaterials (ZnO, TiO 2 , La 2 O 3 , CeO 2 , and Bi 2 O 3 ) are being used in catalysis and to check antibacterial activity; particularly as an important p-type semiconductor, Bi 2 O 3 has remarkable anode semiconductor properties including a broad band gap, low toxicity, high conductivity, antibacterial activity and degradation capability for organic dyes. [21][22][23][24][25][26][27][28][29] Chemical (co-precipitation, sol gel, and redox reactions) and green synthesis techniques are utilized to synthesize Bi 2 O 3 NSs. 21,22,30,31 Among these, the coprecipitation method is considered as ecofriendly, inexpensive, energy-efficient and easy to use.…”

“…21,22,30,31 Among these, the coprecipitation method is considered as ecofriendly, inexpensive, energy-efficient and easy to use. 23 A number of research studies were conducted on Bi 2 O 3 NSs prepared through various synthesis routes to check the inuence of antimicrobial activity and dye degradation. [32][33][34][35][36][37][38][39][40][41] However, the obtained results were not impressive for bactericidal action and dye degradation performance.…”