Simultaneously enhancing up-conversion fluorescence and red-shifting down-conversion luminescence of carbon dots by a simple hydrothermal process

2014 ◽  
Vol 2 (40) ◽  
pp. 6947-6952 ◽  
Author(s):  
Yanyan Cui ◽  
Zhongbo Hu ◽  
Chunfang Zhang ◽  
Xiangfeng Liu
Keyword(s):  
Carbon Dots ◽  
Hydrothermal Process ◽  
Down Conversion ◽  
Simple Hydrothermal Process

Simultaneously enhancing up-conversion fluorescence and red-shifting down-conversion luminescence of carbon dots has been achieved by a simple hydrothermal process.

Synthesis of photoluminescent carbon dots for the detection of cobalt ions

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 2285-2291 ◽  
Author(s):  
Chi-Lin Li ◽  
Chih-Ching Huang ◽  
Arun Prakash Periasamy ◽  
Prathik Roy ◽  
Wei-Cheng Wu ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Hydrothermal Process ◽  
Selective Detection ◽  
Photoluminescence Quenching ◽  
Cobalt Ions ◽  
Induced Aggregation ◽  
Simple Hydrothermal Process

Photoluminescent carbon dots (C-dots) were prepared from l-cysteine through a simple hydrothermal process and used for selective detection of cobalt ions (Co2+), based on analyte induced aggregation and photoluminescence quenching of C-dots.

scholarly journals Reed-derived fluorescent carbon dots as highly selective probes for detecting Fe3+ and excellent cell-imaging agents

RSC Advances ◽  
2019 ◽  
Vol 9 (38) ◽  
pp. 21715-21723 ◽  
Author(s):  
Guili Wei ◽  
Ziqiang Zhao ◽  
Jie Du ◽  
Pan Li ◽  
Zhuxing Sun ◽  
...  
Keyword(s):  
Carbon Source ◽  
Fluorescent Probe ◽  
Carbon Dots ◽  
Cell Imaging ◽  
Hydrothermal Process ◽  
Imaging Agents ◽  
Fluorescent Carbon Dots ◽  
Simple Hydrothermal Process ◽  
Fluorescent Carbon

A highly selective and sensitive fluorescent probe for detecting Fe3+, carbon dots (CDs), was prepared with renewable reed naturally containing C, N, O, and S elements as a green and eco-friendly carbon source by a simple hydrothermal process.

scholarly journals Synthesis and characterization of one-dimensional titanate structure

2008 ◽  
Vol 2 (2) ◽  
pp. 109-114 ◽  
Author(s):  
Ljubica Nikolic ◽  
Marija Maletin ◽  
Paula Ferreira ◽  
Paula Vilarinho
Keyword(s):  
Heat Treatment ◽  
Structural Characteristics ◽  
Hydrothermal Process ◽  
Synthesis And Characterization ◽  
One Dimensional ◽  
Treatment Conditions ◽  
Alkaline Conditions ◽  
The Stability ◽  
Simple Hydrothermal Process

One-dimensional titania structures were synthesized trough a simple hydrothermal process in a highly alkaline conditions. The aim of this work was to elucidate the effect of time on the formation of 1D titanates as well on its structural characteristics (morphology, phase composition, surface area). Apart from that, the effect of heat treatment conditions on the stability of titanate based 1D samples has been investigated. The results have revealed that it is possible to form one-dimensional titanates already after 1 hour of hydrothermal synthesis. Although the composition of titanates is still under debate, the results probably correspond to the layered sodium titanates. The 1D prepared structures show a remarkable stability during heating, remaining the basic morphology and composition even up to 700?C.

Xylene-sensing of Fe2(MoO4)3 nanoplates prepared via a hydrothermal method

2017 ◽  
Vol 10 (03) ◽  
pp. 1750022 ◽  
Author(s):  
Mengying Xu ◽  
Zhidong Lin ◽  
Wenying Guo ◽  
Yuyuan Hong ◽  
Ping Fu ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Gas Sensing ◽  
Operating Temperature ◽  
Hydrothermal Process ◽  
Optimum Operating ◽  
Average Crystalline Size ◽  
Optimum Operating Temperature ◽  
Recovery Times ◽  
Response And Recovery ◽  
Simple Hydrothermal Process

Fe2(MoO4)3 nanoplates were prepared via a simple hydrothermal process. The average crystalline size of these nanoplates is 85.8[Formula: see text]nm. The sensor based on Fe2(MoO4)3 shows a high gas sensing performance to xylene. The response of Fe2(MoO4)3 sensor is 25.9–100[Formula: see text]ppm xylene at optimum operating temperature of 340[Formula: see text]C. The response and recovery times to 100[Formula: see text]ppm xylene are 4 and 10[Formula: see text]s, respectively. Furthermore, the Fe2(MoO4)3 sensor exhibits remarkable selectivity detection of xylene gas with negligible responses to toluene and benzene. Therefore, the Fe2(MoO4)3 is a promising material for the detection of xylene gas sensors.

Ultrathin HNb3O8 nanosheets with oxygen vacancies for enhanced photocatalytic oxidation of amines under visible light irradiation

2019 ◽  
Vol 7 (10) ◽  
pp. 5493-5503 ◽  
Author(s):  
Junli Chen ◽  
Hai Wang ◽  
Zhiqiang Zhang ◽  
Lifeng Han ◽  
Yonghui Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Oxidation ◽  
Oxygen Vacancies ◽  
Hydrothermal Process ◽  
Light Irradiation ◽  
Excellent Photocatalytic Activity ◽  
Simple Hydrothermal Process

Ultrathin HNb3O8 nanosheets with oxygen vacancies were successfully synthesized by a simple hydrothermal process. HNb3O8 NSs showed excellent photocatalytic activity.

Synthesis and characterization of the new tin borate SnB8O11(OH)4

2018 ◽  
Vol 73 (5) ◽  
pp. 337-348 ◽  
Author(s):  
Sandra Schönegger ◽  
Klaus Wurst ◽  
Gunter Heymann ◽  
Andreas Schaur ◽  
Andreas Saxer ◽  
...  
Keyword(s):  
Hydrothermal Process ◽  
Building Blocks ◽  
Membered Ring ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
X Ray ◽  
Thermoanalytical Investigations ◽  
Hydrogen Bond Interactions ◽  
Simple Hydrothermal Process

AbstractA new tin(II) borate with the composition SnB8O11(OH)4 was synthesized by a simple hydrothermal process. It crystallizes in the centrosymmetric monoclinic space group P21/n (no. 14) with the lattice parameters a=790.1(1), b=1402.2(2), c=994.8(1) pm, and β=90.40(5)° (Z=4). The new compound SnB8O11(OH)4 is isotypic to PbB8O11(OH)4 and isostructural to BaB8O11(OH)4. The borate layers are built up from fundamental building blocks (FBBs) with the composition [B8O11(OH)4]2−. Four of these FBBs form a nine-membered ring wherein the Sn2+ cations are located. These boron-oxygen layers are further connected by O–H···O hydrogen bond interactions. The characterization of SnB8O11(OH)4 is based on single-crystal X-ray diffraction data, vibrational spectroscopy, DFT calculations, and thermoanalytical investigations including high temperature powder XRD.

Precisely Controlled Up/Down‐Conversion Liquid and Solid State Photoluminescence of Carbon Dots

2018 ◽  
Vol 6 (14) ◽  
pp. 1800115 ◽  
Author(s):  
Junkai Ren ◽  
Jibin Sun ◽  
Xingming Sun ◽  
Rui Song ◽  
Zheng Xie ◽  
...  
Keyword(s):  
Solid State ◽  
Carbon Dots ◽  
Down Conversion

Synthesis of ultrafine lanthanum hydroxide nanorods by a simple hydrothermal process

2004 ◽  
Vol 58 (7-8) ◽  
pp. 1180-1182 ◽  
Author(s):  
Xiangyang Ma ◽  
Hui Zhang ◽  
Yujie Ji ◽  
Jin Xu ◽  
Deren Yang
Keyword(s):  
Hydrothermal Process ◽  
Lanthanum Hydroxide ◽  
Simple Hydrothermal Process
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