scholarly journals Small Molecular Sensing with Graphene, Zinc Oxide and Zinc Oxalate

2019 ◽  
Vol 4 (3) ◽  
Author(s):  
Hsu C
Keyword(s):  
Zinc Oxide ◽  
Molecular Sensing ◽  
Zinc Oxalate

Zinc oxide/silver nanoarrays as reusable SERS substrates with controllable ‘hot-spots’ for highly reproducible molecular sensing

2014 ◽  
Vol 436 ◽  
pp. 251-257 ◽  
Author(s):  
Ahmad Esmaielzadeh Kandjani ◽  
Mahsa Mohammadtaheri ◽  
Akshi Thakkar ◽  
Suresh Kumar Bhargava ◽  
Vipul Bansal
Keyword(s):  
Zinc Oxide ◽  
Hot Spots ◽  
Molecular Sensing ◽  
Sers Substrates

Synthesis of Flower-like Zinc Oxalate Microspheres in Ether-water Bilayer Refluxing Systems and Their Conversion to Zinc Oxide Microspheres

2011 ◽  
Vol 27 (6) ◽  
pp. 563-569 ◽  
Author(s):  
Liang Ni ◽  
Lei Wang ◽  
Bing Shao ◽  
Yinjue Wang ◽  
Wenli Zhang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxalate

Self-assembled zinc oxide hierarchical structures with enhanced antibacterial properties from stacked chain-like zinc oxalate compounds

2019 ◽  
Vol 552 ◽  
pp. 258-270 ◽  
Author(s):  
Greta Patrinoiu ◽  
Raluca Dumitru ◽  
Dana C. Culita ◽  
Cornel Munteanu ◽  
Ruxandra Birjega ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Properties ◽  
Hierarchical Structures ◽  
Zinc Oxalate ◽  
Self Assembled

scholarly journals Structural Characterization and Magnetic Properties of Undoped and Ti-Doped ZnO Nanoparticles Prepared by Modified Oxalate Route

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Ekane Peter Etape ◽  
Josepha Foba-Tendo ◽  
Lambi John Ngolui ◽  
Beckley Victorine Namondo ◽  
Fomogne Cyrille Yollande ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Hexagonal Wurtzite Structure ◽  
Decomposition Products ◽  
Pure Zinc ◽  
Morphological Studies ◽  
Eds Analysis ◽  
Average Grain Size ◽  
Oxalate Route ◽  
Doped Zno ◽  
Zinc Oxalate

Ti-doped zinc oxide and pure zinc oxide nanoparticles were synthesized by a modified oxalate route using Averrhoa carambola fruit juice as a natural source of oxalate. The characteristics of the precursors have been investigated by FTIR, TGA, and XRD. The results from the investigation revealed that the precursors are zinc oxalate and Ti-doped zinc oxalate which readily decompose at 450°C. The as-prepared precursors were calcined at 450°C for 4 hours, and the decomposition products have been characterized by XRD, SEM, EDX, and VSM. XRD results revealed crystallinity with hexagonal wurtzite structure, while the average grain size was found to be 26 nm for Ti-doped ZnO and 29 nm for ZnO, using calculations based on Debye-Scherrer equation. Furthermore, the morphological studies by SEM showed particle agglomeration, while the presence of Ti3+ in the zinc oxide lattice is indicated by EDS analysis. Finally the hysteresis loop from VSM results shows that Ti-doped ZnO exhibits ferromagnetism.

Preparation and Antibacterial Activity of Silver Doping Nano Zinc Oxide

2014 ◽  
Vol 597 ◽  
pp. 45-48
Author(s):  
Qun Li ◽  
Xi Hui Zhao ◽  
Xiao Wen Li ◽  
Li Ping Wang ◽  
Qian Qian Liu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Nitrate Solution ◽  
Precipitation Method ◽  
Silver Doping ◽  
Nano Zno ◽  
Oxalate Dihydrate ◽  
Nano Zinc Oxide ◽  
Zinc Oxalate ◽  
Nano Zinc

Zinc oxalate dihydrate as the precursor of anometer zinc oxide (nano-ZnO) was prepared by direct precipitation method. The zinc oxalate dihydrate was dispersed in a silver nitrate solution, and then the resulting solution was filtered and dried under 120°C. The silver doping nano-Zinc oxide (nano-SDZO) was obtained by decrepitating the zinc oxalate dihydrate cake under 500°C. The microstructure of nano-ZnO and nano-SDZO were characterized by TEM, and the chemical reaction in the heat burst process was described. The nano-ZnO particles were 50-60 nm in diameter, and the particle size of nano-SDZO in the range of 20-100 nm. Antibacterial activity of the nano-ZnO and nano-SDZO were compared. The results show that all of the ZnO samples inhibited the growth of S. aureus and E. coli, and nano-SDZO showed a relatively higher inhibition rate than other samples. Two possible mechanisms were proposed to explain the inhibition of bacteria.

Preparation of Porous ZnO Film by Zinc Oxalate Recurrence Method

2012 ◽  
Vol 430-432 ◽  
pp. 578-581
Author(s):  
Yong Qiang He ◽  
Rong Gang Huang ◽  
Yu Liu ◽  
Fu Bao Xing
Keyword(s):  
Zinc Oxide ◽  
Precursor Solution ◽  
Structural Features ◽  
Experimental Results ◽  
Zno Films ◽  
Zno Film ◽  
Calcination Time ◽  
Zinc Oxalate ◽  
Recurrence Method

This paper presents a method called zinc oxalate (ZnC2O4) recurrence method to prepare porous zinc oxide (ZnO) films via templating with polystyrene (PS) spheres. Effects of calcination time and temperature, concentration of ZnC2O4 in precursor solution on ZnO films were studied. Optimal synthetic conditions and structural features of ZnO films were investigated by DTA, XRD and SEM. Experimental results show that porous ZnO films can be easily prepared by zinc oxalate recurrence methods.

Sign in / Sign up

Export Citation Format

Share Document