Synthesis of a novel β-cyclodextrin-functionalized Fe3O4/BaMoO4:Dy3+ magnetic luminescent hybrid nanomaterial and its application as a drug carrier

2020 ◽  
Vol 49 (41) ◽  
pp. 14605-14612
Author(s):  
Sangita K. Swain ◽  
Anupam Sahoo ◽  
Sukanta K. Swain ◽  
S. K. Tripathy ◽  
G. Phaomei

A magnetic luminescent hybrid nanoparticle Fe3O4/BaMoO4:Dy3+ (MLHNP) was successfully synthesized by the co-precipitation method using ethylene glycol.

2012 ◽  
Vol 3 (2) ◽  
pp. 235-240 ◽  
Author(s):  
Sheenu Bhadauria ◽  
Samidha Saxena ◽  
Rajendra Prasad ◽  
Prabhakar Sharma ◽  
Rajendra Prasad ◽  
...  

2021 ◽  
Author(s):  
Liang Huang ◽  
Xianghui Jin ◽  
xumei Tao ◽  
Chen Yang ◽  
Yuanyuan Han

Abstract In this paper, NiAlCe hydrotalcite was prepared by co-precipitation method and hydrothermal method in different volume fractions of ethylene glycol-water mixed solvent and polyethylene glycol-water mixed solvent, and the effect of photocatalytic degradation of methyl orange under ultraviolet light was studied. Samples were characterized by XRD, XPS, UV-Vis and FT-IR in order to find the reasons for the improvement of photocatalytic performance under co-solvent system. NiAlCe-10%EG(h) and NiAlCe-15%PEG(h) had smaller particle size, which was beneficial to photocatalytic performance. The degradation rate of methyl orange could reach up to 100% in 42 min using NiAlCe hydrotalcite with 10% volume fraction of EG and in 48 min using NiAlCe hydrotalcite with 15% volume fraction of PEG. The photocatalytic effect of NiAlCe hydrotalcite samples prepared by hydrothermal method were better than that prepared by co-precipitation method. This provided a new type of catalyst for the degradation of dyes: preparing with ethylene glycol-water mixed solvent.


2016 ◽  
Vol 25 (6) ◽  
pp. 096369351602500 ◽  
Author(s):  
Ruimin Fu ◽  
Mingfu Zhu

Nowadays, the hummers method for preparation of graphene oxide (GO) was improved. The grapheme oxide @ Fe3O4 magnetic nanocomposites were synthesized by co-precipitation method. After analysing the morphology and structure of obtained nanocomposites by X-ray diffraction (XRD), transmission electron microscope (TEM) and Fourier transform infrared (FT-IR) spectroscopy, the result was shown as follows. The particle size of Fe3O4 in nanocomposites is 30 nm. Many functional groups are found in grapheme oxide, and such groups could be used to bind with the drug. In the test for magnetic properties, the nanocomposites gathered rapidly in the vicinity of the permanent magnet. The nanocomposites, with high superparamagnetism, can be used in the following applications: drug targeting transports, drug carrier, and diagnosis assistant system.


2011 ◽  
Vol 295-297 ◽  
pp. 668-671 ◽  
Author(s):  
Jun De Xing ◽  
Xiao Fei Jia

A series of Cu-based catalysts for the synthesis of indole by the reaction of aniline and ethylene glycol were prepared and characterized by ICP-AES and XRD. The results indicated that the activity and stability of Cu/SiO2 catalyst was increased after adding Zn, Mn, Cr and Fe promoters. Mn promoter was favorable for the dispersion of Cu, Zn, Cr, Fe and enlarged the specific surface area of catalysts. It could be seen that the catalysts prepared by impregnation method had better stability and higher activity than the catalysts prepared by co-precipitation method. The catalysts with small grain size of Cu had higher activity than those with big grain size. Some catalysts showed excellent performances in this reaction.


Author(s):  
Rahimah Rahimah ◽  
Ahmad Fadli ◽  
Yelmida Yelmida ◽  
Nurfajriani Nurfajriani ◽  
Zakwan Zakwan

Magnetite (Fe3O4) nanoparticles becomes a new innovation that gets attention of biomedicine scientists. Magnetite can be applied to cancer treatment as a drug carrier because it’s good biocompatibility and very low toxicity. The aim of this study was to determine the effect of temperature and retention time on the magnetite particle characteristics prepared by co-precipitation method. The first, FeCl3 and FeCl2 with 2:1 mole ratio were reacted with 10% NH4OH at 40 - 80°C temperatures during 1 – 30 minutes in a beaker glass. Subsequently, the precipitate was separated using filter paper and it dried into air oven at 100°C. The characteristic of obtained magnetite powder were determined using XRD and SEM. From XRD pattern indicates that magnetite formed at all temperatures with crystallite diameter in the range of 7-13 nm. The SEM results indicate the agglomeration of the magnetite particles with size in the range of 1.37 to 1.72 μm. In the other hand, the higher of temperature and retention time will make the agglomeration of the particles become more uniform. The increasing of temperature and the retention time will increase the magnetite crystallinity level.


RSC Advances ◽  
2017 ◽  
Vol 7 (78) ◽  
pp. 49548-49561 ◽  
Author(s):  
Xiangpeng Kong ◽  
Zheng Chen ◽  
Yuehuan Wu ◽  
Ruihong Wang ◽  
Jiangang Chen ◽  
...  

Mg2+ doped nanoscale Cu–Mg/ZnO catalysts prepared by the co-precipitation method have been systematically characterized focusing on the amount of Mg2+ ions incorporated.


2009 ◽  
Vol 620-622 ◽  
pp. 541-544 ◽  
Author(s):  
Ju An Wang ◽  
Yun Hua Xu ◽  
Qihong Cen ◽  
Xiao Man Zhang ◽  
Ya Ru Cui

The present research describes a simple low-temperature synthesis route of fabricating porous YVO4:Sm nanoplates via a chemical co-precipitation method using commercially available Y2O3, NH4VO3, Sm2O3 and ethylene glycol as the reacting precursors. The as-synthesized YVO4:Sm was thermally treated at 300°C and 600°C for 2 h which is much lower than that of the conventional preparation methods. The obtained samples were characterized by FTIR, XRD, TEM and PL. The photoluminescence measurement revealed that the luminescence intensity was significantly increased with increasing annealing temperature.


2011 ◽  
Vol 393-395 ◽  
pp. 894-897
Author(s):  
Ya Dong ◽  
Hui Wen Yuan ◽  
Ya Ru Ni ◽  
Chun Hua Lu ◽  
Zhong Zi Xu

The novel kind flowerlike mesoporous spheres of calcium silicate hydrate (CaO•SiO2•H2O, CSH) have been synthesized by co-precipitation method on based with water/alcohol/calvital/ tetraethyl orthosilicate (TEOS) system. The synthesized CSH were applied as a carrier to study the loaded behaviors of ibuprofen(IBU),was used to investigate the drug loading behavior of the CSH for different times has been also discussed. The drug loading capacities(DLCs) of CSH loaded for 12h has reached 116.78wt.%. The structural, morphological and textural properties were investigated by SEM, FTIR, TG and BET. The results show that it would be a good candidate as drug carrier for bone repair.


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