Lanthanide-doped Sr2ScF7 nanocrystals: controllable hydrothermal synthesis, the growth mechanism and tunable up/down conversion luminescence properties

2017 ◽  
Vol 5 (13) ◽  
pp. 3264-3275 ◽  
Author(s):  
Bei Zhao ◽  
Dingyi Shen ◽  
Jun Yang ◽  
Shanshan Hu ◽  
Xianju Zhou ◽  
...  

Sr2ScF7 micro/nanocrystals with various morphologies were firstly synthesized via a one-step surfactant-free hydrothermal route. Sr2ScF7:Yb3+/Er3+/Tm3+ phosphors show tunable RGB and white emissions.

Crystals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 552 ◽  
Author(s):  
Shirui Luo ◽  
Ruosong Chen ◽  
Lan Xiang ◽  
Jing Wang

In this work, two synthesis routes were applied to investigate the effect of citrates on the construction of the ZnO structure. Well-dispersed ZnO plates with (001) facet highly exposed were prepared via one-step hydrothermal route, while ZnO nanoparticles were obtained via two-step route. In one-step route, citrates were added before the formation of Zn(OH)2 precursor, while citrates were added after the formation of Zn(OH)2. For the first time, the interaction between citrates and the Zn(OH)2 precursor was investigated and citrates that participated in the formation of Zn(OH)2 were the main cause for (001) facet exposed structure construction. A growth mechanism about the formation of ZnO plates in the presence of citrates was proposed. The as-prepared ZnO plates showed enhanced photocatalytic activity for the degradation of methylene blue (MB).


CrystEngComm ◽  
2018 ◽  
Vol 20 (13) ◽  
pp. 1832-1843 ◽  
Author(s):  
Wenpeng Xia ◽  
Yufeng Zhang ◽  
Shanshan Hu ◽  
Jie Xiong ◽  
Jianfeng Tang ◽  
...  

Tetragonal AgLa(MoO4)2 microcrystals with novel discal hierarchical architectures were successfully synthesized via a one-step hydrothermal route.


CrystEngComm ◽  
2018 ◽  
Vol 20 (28) ◽  
pp. 3978-3986 ◽  
Author(s):  
Jie Xiong ◽  
Jie Yu ◽  
Yufeng Zhang ◽  
Wenpeng Xia ◽  
Shanshan Hu ◽  
...  

The obtained products show controlled phases and abundant morphologies with the increase of fluoride ion concentration.


CrystEngComm ◽  
2020 ◽  
Vol 22 (19) ◽  
pp. 3361-3370 ◽  
Author(s):  
Yini Mao ◽  
Li Jiang ◽  
Pengfei Xian ◽  
Qiongfen Fu ◽  
Shanshan Hu ◽  
...  

Pure hexagonal phase KSc(MoO4)2 crystals with a hexagonal block shape were successfully synthesized via a one-step hydrothermal method.


2011 ◽  
Vol 335-336 ◽  
pp. 1009-1013
Author(s):  
Wen Kui Zhang ◽  
Xian Xian Weng ◽  
Hui Huang ◽  
Xin Yong Tao

Hexagonal phase NaYF4: Eu3+ materials were successfully synthesized by a facile EDTA-assisted hydrothermal route. The microstructure, morphology and luminescence property of the as-synthesized samples were characterized by XRD, XPS, SEM, TEM, HRTEM and photoluminescence (PL) spectra. The pristine NaYF4: Eu3+ microprisms have uniform size and morphology with 3-4 micrometers in length and ca. 500 nm in diameter. The annealing treatment afterwards achieved high crystallinity, and moreover, had a remarkable influence on morphologies of the NaYF4: Eu3+ sample. In comparison with the pristine sample, the annealed NaYF4: Eu3+ microcrystals had a markedly enhancement of down-conversion (DC) luminescence properties, which may be due to the high crystallinity and large surface roughness resulted from annealing treatment.


CrystEngComm ◽  
2019 ◽  
Vol 21 (26) ◽  
pp. 3939-3947 ◽  
Author(s):  
Wenpeng Xia ◽  
Jie Xiong ◽  
Li Jiang ◽  
Rui Ye ◽  
Yini Mao ◽  
...  

KYb3F10:Ln3+ (Ln = Er, Ho, Tb, Gd, Eu, Sm, Ce and La) micro/nanocrystals with abundant morphologies were synthesized via a one-step hydrothermal route without employing any surfactants.


RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29346-29352 ◽  
Author(s):  
Junjun Zhang ◽  
Yali Liu ◽  
Linlin Li ◽  
Nannan Zhang ◽  
Lianchun Zou ◽  
...  

Color-tunable Bi2MoO6:Eu3+ phosphors have been synthesized via a facile hydrothermal route followed by a further calcination treatment.


CrystEngComm ◽  
2020 ◽  
Vol 22 (29) ◽  
pp. 4862-4874
Author(s):  
Jie Xiong ◽  
Wei Wang ◽  
Yini Mao ◽  
Qingyuan Liu ◽  
Jun Yang ◽  
...  

BaLu2−xF8:xLn3+ crystals have been synthesized via a one-step hydrothermal route without any surfactants.


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