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The potential for exploitation of these fine particles have produced a great number of researches in fabricating novel material.
These peaks matched very well with the cubic zinc blended structure (JCPDS No. 05-0566), confirming the purity of the synthesized ZnS.
These peaks show the formation of Iron sulphate which are consistent with the values in the standard card (JCPDS No. 76-0965).

For Ba3In2(OH)12, the 2θ angles located at 15.42°, 17.83°, 23.64°, 25.28°, 28.4°, 31.13°, 34.92°, 39.47°, 48.4° and 51.97° were observed, indicating its nature of hydrogarnet struc- ture with lattice constants of a=b=c=1.406 nm, which agreed well with the JCPDS card (PDF No.30-0129).
Some impurity pesks of BaCO3 (JCPDS No.05-0378) were detected, which located at 23.89°, 24.29°, 27.71°, 34.07°, 41.97° and 44.88°.
It was reported[10] that the solubility curve of In3+ had a sharp and clear peak when the concentration of OH- was 11 mo/L, and caused the number of In3+ polymer declined.

The XRD patterns of all samples were verified by comparison with the JCPDS data.
When the patterns were compared with JCPDS card No. 1011148, it was found that all peaks observed at 2θ values of 31°, 34°, 36°, 47°, 56°, 62°, 66°, 68°, and 69° consistent with hexagonal wurtzite (100), (002), (101), (102), (110), (103), (200), (112) and (201) spacings, respectively.
The g-values, line width and peak area corresponding to number of spins participating in the production of the both signals are displayed in Table 2.

Further doping results in increase the number of Co4+ ions and the system gets divided into two phases with different properties.
The identification of phases was based on the JCPDS base card numbers 04-007-6831 (LaCoO3), 00-028-1229 (La0.9Sr0.1CoO3) and 04-007-8983 (La0.8Sr0.2CoO3).
This work was financially supported by the National Science Center through project number: UMO-2013/09/B/ST8/01681.

The high temperature polymorphs of ZrO2 can be stabilized at room temperature by the addition of aliovalent oversized dopant cations (Mg2+, Ca2+, Y3+, La3+,etc.) that decrease Zr coordination number by the introduction of oxygen vacancies [12].
A number of authors [13-14] also reported the appearance of a partial-phase transition from m-ZrO2 to t-ZrO2 and even from m-ZrO2 to c-ZrO2 [15].
The identification and quantification of monoclinic (M), tetragonal (T) and cubic (C) zirconia were accomplished by comparison of the XRD data to the Powder Diffraction File (file numbers 79-1771 and 78-0047 for tetragonal and monoclinic phases, respectively).
All the diffraction peaks of Y-ZrO2 shown in Fig.3 match very well with the standard values from the Joint Committee on Powder Diffraction Standards (JCPDS) data card No.79-1771, which can be assigned to tetragonal structures, and the yttrium doping does not introduce any detectable impurity phases.

All the observed diffraction peaks of the pattern are well index to a pure tetragonal rutile phase structure (JCPDS card No. 78-1508).
A large number of interspaces less than 10 nm between building units exist in the exterior surface.
Fig. 2 (a) SEM image of the as-grown hierarchical hollow spheres (b-c) SEM images of hollow spheres with higher magnifications (d) SEM image of its exterior surface (e-f) SEM images of an open hollow sphereand its higher-magnification view This unique structure of our product could provide more surface active sites for the photocatalytic reaction and substrates absorption than those hollow spheres with smooth interior [9-11], because large numbers of interspaces less than 10 nm exist on the exterior surface of our product, and the hollow interior is composed of small rough hollows.
It is well-known that the photocatalytic performance can be enhanced if the surface area of the photocatalyst and the electron transport is increased, since the number of sites for the photocatalytic reaction increases and the amounts of charge recombination reduces [11].

In the XRD pattern, peaks at 2θ of 38, 44, 64 and 77 are indexed as (111), (200), (220) and (311) planes of Ag with cubic structure, which matched with the reported date (JCPDS card No. 04-0783).
Acknowledgements This work was supported Ninth Undergraduate Science and Technology Innovation Fund (Project 20162303008), the Chongqing Graduate Research and Innovation Projects (CYS17087), the “Zeng Sumin Cup” Science and Technology Project (School of Materials and Energy, Southwest University, Project number 21) and the national Undergratuate Training Program for Innovation and Entrepreneurship (Project number 201810635031).

This powder was taken from Sulzer Metco, USA and its code number was AMDRY 301.
X-ray diffraction (XRD) analysis using JCPDS card # 730471 showed that the as received powder has predominantly WC phase, as shown in Fig.2.
A great number of parameters influence functional as well as adhesive properties of thermally sprayed coatings.

It is important to note that the XRD patterns of Y2O3, NiO and MnO2 were reported with JCPDS card numbers for both the bulk Y2NiMnO6 and Y2NiMnO6 ceramics.
However, the sample at 1400℃ with sintering time of 12 hours has the lowest number of tanδ about 0.0142 at the highest frequency of 108Hz, while the sample at 1400℃ and sintered for 24 hours has the highest value of tanδ.

However, for the deposition of Ag2S thin films number of fabrication techniques have been reported which includes, molecular beam epitaxy [7], thermal co-evaporation [8], physical vacuum deposition [9], aerosol assisted chemical vapor deposition (AACVD) [10], sequential thermal evaporation [11], facile chemical route [12], chemical bath deposition [13], solution growth technique [14], spray pyrolysis [2], and successive ionic layer adsorption and reaction (SILAR) [15].
After the number of trials, the adsorption, reaction and rinsing times were optimized for the fabrication of homogeneous, uniform and crack and pin-hole free thin films.
[19] JCPDS Card No. 75-1061