02335nas a2200277   4500008004100000022001400041245011600055210006900171260000800240300001600248490000700264520140800271653002001679653002401699653001801723653002301741653000801764100002101772700002701793700002601820700001901846700002201865700001701887700002801904856012501932       2022                        eng d  a0272-884200aRu, Pd doped WO3 nanomaterials: a synergistic effect of noble metals to enhance the acetone response properties0 aRu Pd doped WO3 nanomaterials a synergistic effect of noble meta  cJUN  a17923-179330 v483 a<p>
	Noble metals (NMs) have an enormous impact on the intrinsic properties of the metal oxides. We report the synergistic effect of Ruthenium (Ru) and Palladium (Pd) noble metals on the enhancement of gas sensing properties of pure tungsten oxide (WO3). The gas sensing material is synthesized by simple and straight forward precipitation route, and its physico-chemical analyses are determined using XRD, FESEM, TEM/HRTEM, FFT, UV-Vis, XPS, EDAX, and BET measurements. Use of the developed material as a gas sensor is evaluated using several target gases (oxidizing as well as reducing), with acetone showing the best selectivity. The noble metal doping and hence catalytic action improved the gas response qualities. The synergistic effect of Ru and Pd on WO3 gas response properties are identified, where the effect is 99.80% sensitivity, and lower response/recovery time (10 s and 2 min) at 300 degrees C operating temperature. Nonetheless, the sensors displayed better gas sensing properties even at lower operating temperatures ranging from 200 to 275 degrees C. In addition, the synergistic effect has displayed the dramatic enhancement in the sensitivity to 76.44% at barely 10 ppm acetone concentration. This particular result will undoubtedly be helpful for diagnostic purpose of diabetic patients, and a strong candidate for prospective gas sensing applications, particularly acetone.</p>
10aAcetone vapours10aPrecipitation route10aRu -Pd doping10asynergistic effect10aWO31 aKodam, Pavan, M.1 aGhadage, Pandurang, A.1 aNadargi, Digambar, Y.1 aShinde, K., P.1 aMulla, Imtiaz, S.1 aPark, J., S.1 aSuryavanshi, Sharad, S.  uhttp://library.ncl.res.in/content/ru-pd-doped-wo3-nanomaterials-synergistic-effect-noble-metals-enhance-acetone-response02036nas a2200229   4500008004100000022001400041245008500055210006900140260000800209300000900217490000700226520126700233100002601500700002301526700002601549700002301575700002201598700001601620700003101636700002801667856011101695       2023                        eng d  a0957-452200aGreen synthesis of GO-loaded Ag/ZnO nanocomposites for methyl orange degradation0 aGreen synthesis of GOloaded AgZnO nanocomposites for methyl oran  cJUL  a15680 v343 a<p>
	Nature is a perfect laboratory for creating novel nanomaterials for a variety of applications. A robust green synthesis approach to GO-loaded Ag/ZnO nanocomposite materials using medicinal plant extraction and their potential application in methyl orange dye degradation are reported. The straightforward technique employs zinc and silver nitrate precursors in an aqueous solution of medicinal plant extract, causing the precipitation process. Prior to photocatalytic investigations, the physico-chemical properties of the material are analysed using TG-DTA, XRD, FE-SEM, TEM, EDAX and BET. The developed material showcase hexagonal wurtzite structure of ZnO, with face-centered-cubic phase of Ag and AgCl. All the samples exhibit aggregated, irregular rounded grains, as expected in the precipitation synthesis process. Pristine ZnO showed 15.5% degradation efficiency towards methyl orange, which was further improved by doping Ag from 0.5 to 2 mol%. The catalyst with 1 mol% Ag doping resulted in the better photocatalytic activity (26.30%), which has again improved by loading the GO (27.46%). The outcome of this study provides the new insights to GO-loaded Ag/ZnO nanocomposites by green synthesis route, in view of photocatalytic applications.</p>
1 aNadargi, Digambar, Y.1 aNadargi, Jyoti, D.1 aTamboli, Mohaseen, S.1 aTamboli, Asiya, M.1 aMulla, Imitaz, S.1 aUmar, Ahmad1 aTruong, Nguyen, Tam Nguyen1 aSuryavanshi, Sharad, S.  uhttp://library.ncl.res.in/content/green-synthesis-go-loaded-agzno-nanocomposites-methyl-orange-degradation