Characterization of imprinting polymeric temperature variation with fluorescent Rhodamine B molecule

2006 ◽  
Vol 83 (4-9) ◽  
pp. 864-868 ◽  
Author(s):  
Fu-Hsiang Ko ◽  
Li-Yu Weng ◽  
Chu-Jung Ko ◽  
Tieh-Chi Chu
Keyword(s):  
Temperature Variation ◽  
Rhodamine B

scholarly journals CHARACTERIZATION OF NANOHYDROXYAPATITE FROM TUNA’S Thunnus sp BONE AS BIOMATERIALS SUBSTANCE

2018 ◽  
Vol 9 (2) ◽  
pp. 619-629
Author(s):  
Aditya Bayu Hanura ◽  
Wini Trilaksani ◽  
Pipih Suptijah
Keyword(s):  
Temperature Variation ◽  
Sintering Temperature ◽  
Statistic Analysis ◽  
Metal Analysis ◽  
X Ray ◽  
Hexagonal Shape ◽  
Particle Size Analyzer ◽  
Degree Level ◽  
Test Level

Tuna Thunnus sp is a high-value fisheries products. The abundance of waste from tuna’s processing industry has not been used optimally. The objective of this study was to produce and characterize nanohidroxyapatite (Ca5(PO4)3((OH)0.8F0.2) of tuna’s Thunnus sp bone waste using high temperature sintering of 400-800OC continuing by nanomilling method. The results of the characterization showed that the sintering temperature of 800OC was the best treatment yielding of hidroxyapatite 57.73%, 89.27% white degree level. The result of statistic analysis showed that the sintering temperature variation gave a significant effect on the white degree at the test level (p <0.05). Proximate result after sintering showed moisture content of 0.15%, 99.83% ash, 0.05% fat, 0.73% protein and 0% crude fiber. Results of heavy metal analysis showed the content of lead (Pb) and mercury (Hg) was negative, and cadmium (Cd) 0.018 ppm. The mineral test consist of calcium, phosphor, kalium, magnesium, iron, zinc, manganese, and sodium with the dominant elements were 49.76% calcium and 9.02% phosphor. The result of statistic analysis showed that the sintering temperature variation gave significant effect to the three main minerals at the test level (p<0.05). The Particle Size Analyzer test showed that nanohidroxyapatite particles was measured at 800-900 nm. The X-Ray Diffractometer analysis showed the results of sample identification contains hydroxyapatite and fluorian, with syn 100.00%. The hidroxyapatite was a compound complex and crystals formed has a hexagonal shape with a percentage of 82.9% crystallinity. Keywords : bone, nanohidroxyapatite, particles, sintering, tuna

scholarly journals Synthesis and characterization of Z-scheme heterostructure CoWO4/g-C3N4 as a visible-light photocatalyst for removal of organic pollutant

2021 ◽  
Vol 10 (2) ◽  
pp. 59-63
Author(s):  
Hai Pham Viet ◽  
Anh Dao Thi Ngoc ◽  
Viet Nguyen Minh ◽  
Ha Tran Thi Viet ◽  
Dang Do Van ◽  
...  
Keyword(s):  
Visible Light ◽  
Rhodamine B ◽  
High Performance ◽  
Organic Pollutant ◽  
Photogenerated Electron ◽  
Morphological Properties ◽  
Electron Hole ◽  
Visible Light Photocatalyst ◽  
Photocatalytic Activities

In this study, direct Z–scheme heterostructure CoWO4/g-C3N4 was synthesized by a facile hydrothermal method. The structural, morphological properties of the prepared samples were characterised by XRD, SEM, UV–Vis and PL measurements. The as-obtained heterostructure CoWO4/g-C3N4 exhibited enhanced photocatalytic activities toward the degradation of Rhodamine B under visible light irradiation with 92% Rhodamine B removal after 80 minutes irritation, which exceeded pristine g-C3N4 and CoWO4. The enhanced photocatalytic performance ascribed to interfacial contact between g-C3N4 and CoWO4, thus further inhibiting the recombination of photogenerated electron/hole pairs. It is anticipated that the construction of Z–scheme heterostructure CoWO4/g-C3N4 is an effective strategy to develop high-performance photocatalysts for the degradation of organic pollutants in water.

Synthesis and characterization of novel PPy/Bi2O2CO3 composite with improved photocatalytic activity for degradation of Rhodamine-B

2015 ◽  
Vol 637 ◽  
pp. 127-132 ◽  
Author(s):  
Qizhao Wang ◽  
Longhui Zheng ◽  
Yutao Chen ◽  
Jiafeng Fan ◽  
Haohao Huang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Rhodamine B ◽  
Synthesis And Characterization
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