Photovoltaic response of carotenoid-sensitized electrode in aqueous solution: ITO coated with a mixture of TiO2 nanoparticles, carotenoid, and polyvinylcarbazole

1999 ◽  
pp. 1225-1230 ◽  
Author(s):  
Guoqiang Gao Gao ◽  
Yi Deng ◽  
Lowell D. Kispert
Keyword(s):  
Aqueous Solution ◽  
Tio2 Nanoparticles ◽  
Photovoltaic Response

Photocatalytic removal of nitrate using TiO2/polyacrylonitrile nanofiber membrane synthesized by co-electrospinning process

2014 ◽  
Vol 14 (4) ◽  
pp. 554-560 ◽  
Author(s):  
S. P. Suriyaraj ◽  
M. Benasir Begam ◽  
S. G. Deepika ◽  
P. Biji ◽  
R. Selvakumar
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solution ◽  
Tio2 Nanoparticles ◽  
Nitrate Removal ◽  
Electrospinning Process ◽  
Order Kinetic ◽  
Nanofiber Membrane ◽  
Electrospinning Technique ◽  
X Ray ◽  
Pan Nanofiber

The present study investigates the development of titanium dioxide (TiO2)/polyacrylonitrile (PAN) nanofiber membrane for the removal of nitrate from aqueous solution by photocatalysis. The TiO2 nanoparticles were synthesized by conventional sol–gel method followed by blending them into PAN polymer. The blended solution was electrospun into nanofiber using the co-electrospinning technique. The nanoparticle, PAN nanofibers and the TiO2 impregnated nanofibers were characterized using suitable techniques like X-ray diffraction, high-resolution transmission electron microscopy and scanning electron microscopy attached with energy dispersive X-ray spectroscopy. The average size and the diameter of the TiO2 nanoparticles and TiO2/PAN nanofibers were found to be 22 ± 0.32 nm and 90 ± 15 nm respectively. TiO2 nanoparticles and TiO2/PAN nanofibers showed maximum nitrate removal of 74.67 and 39% respectively at 10 mg/L nitrate concentration at pH 4. However at higher concentration (50 mg/L), the nitrate removal was found to be only 16.87%. The experimental data were fitted onto pseudo second-order kinetic model. The impregnation of TiO2 nanoparticles into the PAN nanofibers by co-electrospinning techniques lead to higher removal of nitrate in aqueous solution at lower concentration (10 mg/L and below). However at higher concentration, the TiO2/PAN nanofiber membrane was inefficient to remove nitrate.

scholarly journals An In Silico study of TiO2 nanoparticles interaction with twenty standard amino acids in aqueous solution

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Shengtang Liu ◽  
Xuan-Yu Meng ◽  
Jose Manuel Perez-Aguilar ◽  
Ruhong Zhou
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Tio2 Nanoparticles ◽  
In Silico ◽  
In Silico Study

Nickel adsorption from aqueous solution using lemon peel biomass chemically modified with TiO2 nanoparticles

2020 ◽  
Vol 17 ◽  
pp. 100299
Author(s):  
Adriana Herrera-Barros ◽  
Nayib Bitar-Castro ◽  
Ángel Villabona-Ortíz ◽  
Candelaria Tejada-Tovar ◽  
Ángel Darío González-Delgado
Keyword(s):  
Aqueous Solution ◽  
Tio2 Nanoparticles ◽  
Chemically Modified ◽  
Lemon Peel ◽  
Nickel Adsorption

scholarly journals Effective Removal of Congo Red by Triarrhena Biochar Loading with TiO2 Nanoparticles

Scanning ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Peng Yu ◽  
Tao Hu ◽  
Hong Hui Chen ◽  
Fangfang Wu ◽  
Hui Liu
Keyword(s):  
Aqueous Solution ◽  
Tio2 Nanoparticles ◽  
Congo Red ◽  
Sol Gel ◽  
Environmentally Friendly ◽  
Absorption Capacity ◽  
Gel Method ◽  
Effective Removal ◽  
Macropore Structure ◽  
Prepared Composite

A composite of pyrolytic Triarrhena biochar loading with TiO2 nanoparticles has been synthesized by the sol-gel method. The composite shows a well-developed hollow mesoporous and macropore structure as characterized by XRD, BET, and SEM. When used as an absorbent to remove Congo red from aqueous solution, it was found that as-prepared composite performed better absorption capacity than single biochar or TiO2. The results suggest that biochar loading with TiO2 could be promisingly implemented as an environmentally friendly and inexpensive adsorbent for Congo red removal from wastewater.

Removal of antibiotic from aqueous solution using synthesized TiO2 nanoparticles: characteristics and mechanisms

2018 ◽  
Vol 77 (10) ◽  
Author(s):  
Thi Huong Dao ◽  
Thi Thuy Tran ◽  
Van Ri Nguyen ◽  
Thi Ngoc Mai Pham ◽  
Cuong Manh Vu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Tio2 Nanoparticles

Modified Activated Carbon Electrodes for Electrosorption of NaCl from Aqueous Solution

2010 ◽  
Vol 113-116 ◽  
pp. 2134-2140 ◽  
Author(s):  
Zhao Lin Chen ◽  
Xiao Wei Sun ◽  
Hong Fei Guo ◽  
Cun Yi Song
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Tio2 Nanoparticles ◽  
Removal Efficiency ◽  
Average Pore Size ◽  
Operation Mode ◽  
Nitrogen Adsorption ◽  
Average Pore ◽  
Inorganic Ion ◽  
Enhanced Adsorption

Activated carbon (AC) electrodes to electrosorption NaCl from aqueous solution were modified. The electrodes were characterized using scanning electron micrograph (SEM), nitrogen adsorption and cyclic voltammetry. The electrosorption removal efficiency is improved by 3 M HNO3 modification due to increased hydrophilic groups enhance adsorption of inorganic ion. The electrosorption removal efficiency is decreased by 15 M HNO3 modification due to the combined effects of increased hydrophilic groups and decreased average pore size. The improvement of electrosorption performance by TiO2 nanoparticles modification due to TiO2 nanoparticles boned with the polar groups works as electrosorption sites with enhanced adsorption strength. The reversal operation mode is better than non-reversal operation mode for electrosorption application.

Synthesis and Application of Fe-Doped TiO2 Nanoparticles for Photodegradation of 2,4-D from Aqueous Solution

2020 ◽  
Author(s):  
Roya Ebrahimi ◽  
Afshin Maleki ◽  
Reza Rezaee ◽  
Hiua Daraei ◽  
Mahdi Safari ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Tio2 Nanoparticles ◽  
Doped Tio2
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