Textile Dye Degradation in a Novel Photocatalytic Baffled Reactor Using Immobilized TiO2 Nanoparticles

2022 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Payam Zanganeh Ranjbar ◽  
Hossein Ganjidoust ◽  
Bita Ayati
Keyword(s):  
Tio2 Nanoparticles ◽  
Dye Degradation ◽  
Textile Dye ◽  
Immobilized Tio2

scholarly journals Enriched Catalytic Activity of TiO2 Nanoparticles Supported by Activated Carbon for Noxious Pollutant Elimination

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2808
Author(s):  
Suriyaprabha Rajendran ◽  
Gajendra Kumar Inwati ◽  
Virendra Kumar Yadav ◽  
Nisha Choudhary ◽  
Mitesh B. Solanki ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Activated Carbon ◽  
Tio2 Nanoparticles ◽  
Dye Degradation ◽  
Cost Effective ◽  
Pure Tio2 ◽  
Textile Dye ◽  
Sonochemical Method ◽  
Bet Analysis ◽  
Surface Modified

Cleaning wastewater has become one of the most serious issues for a number of scientists and researchers in recent years, as water is the most basic need for the daily life of humans. There has been a focus on the removal of noxious pollutants from wastewater effluents by using nanocatalysts owing to their unique physicochemical actions and stability. Herein we manufactured TiO2 nanoparticles supported by activated carbon (AC-TiO2) using a cost-effective sonochemical method. The band structures of the AC-TiO2 and TiO2 were modified from 3.2 to 3.1 eV, thus increasing the catalytic activity. The structural, optical and anatase crystal phase properties, with morphological confirmation, were studied by applying UV-DRS, PL, FESEM, XRD, along with HRTEM, respectively. The specific surface area, calculated by BET analysis, was found to be ~241 m2/gm and ~46 m2/gm for AC-TiO2 and TiO2. The degradation efficiency of the as-prepared nanocatalysts against the very toxic but rarely studied organic textile dye pollutant RO 84 was investigated and 97% efficiency were found for the AC-TiO2 as compared to pure TiO2, which is a highly appreciated finding in the catalytic dye degradation application domain. Such surface-modified nanocatalysts could be further implemented for the treatment of wastewaters/waste effluents released from chemical industries, laboratories and other sources.

scholarly journals Flammable gases produced by TiO2 nanoparticles under magnetic stirring in water

Friction ◽  
2021 ◽  
Author(s):  
Pengcheng Li ◽  
Chongyang Tang ◽  
Xiangheng Xiao ◽  
Yanmin Jia ◽  
Wanping Chen
Keyword(s):  
Tio2 Nanoparticles ◽  
Quartz Glass ◽  
Dye Degradation ◽  
Mechanical Energy ◽  
Chemical Energy ◽  
Magnetic Stirring ◽  
Catalytic Role ◽  
Nanostructured Semiconductors

AbstractThe friction between nanomaterials and Teflon magnetic stirring rods has recently drawn much attention for its role in dye degradation by magnetic stirring in dark. Presently the friction between TiO2 nanoparticles and magnetic stirring rods in water has been deliberately enhanced and explored. As much as 1.00 g TiO2 nanoparticles were dispersed in 50 mL water in 100 mL quartz glass reactor, which got gas-closed with about 50 mL air and a Teflon magnetic stirring rod in it. The suspension in the reactor was magnetically stirred in dark. Flammable gases of 22.00 ppm CO, 2.45 ppm CH4, and 0.75 ppm H2 were surprisingly observed after 50 h of magnetic stirring. For reference, only 1.78 ppm CO, 2.17 ppm CH4, and 0.33 ppm H2 were obtained after the same time of magnetic stirring without TiO2 nanoparticles. Four magnetic stirring rods were simultaneously employed to further enhance the stirring, and as much as 30.04 ppm CO, 2.61 ppm CH4, and 8.98 ppm H2 were produced after 50 h of magnetic stirring. A mechanism for the catalytic role of TiO2 nanoparticles in producing the flammable gases is established, in which mechanical energy is absorbed through friction by TiO2 nanoparticles and converted into chemical energy for the reduction of CO2 and H2O. This finding clearly demonstrates a great potential for nanostructured semiconductors to utilize mechanical energy through friction for the production of flammable gases.

New chemical products formation from textile dye degradation, chitinolytic and antioxidant activity in new strain nbpc5–18 of Cellulosimicrobium sp. TH-20

2019 ◽  
Vol 7 (3) ◽  
pp. 103114
Author(s):  
Bilquees Tabasum ◽  
Prajakta R. Dhagale ◽  
Kirti M. Nitnaware ◽  
Harichandra A. Nikule ◽  
T.D. Nikam
Keyword(s):  
Antioxidant Activity ◽  
Dye Degradation ◽  
Textile Dye ◽  
Chemical Products

scholarly journals Photocatalytic activity of Ag/Ni bi-metallic nanoparticles on textile dye removal

2019 ◽  
Vol 8 (1) ◽  
pp. 895-900 ◽  
Author(s):  
Santhanam Mohan ◽  
Manickam Vishnu Devan
Keyword(s):  
Metallic Nanoparticles ◽  
Dye Degradation ◽  
Uv Light ◽  
Wide Band ◽  
Zingiber Officinale ◽  
Band Gap Energy ◽  
Nano Particles ◽  
Textile Dye ◽  
Green Approach ◽  
Short Period

Abstract The photocatalysis of Ag/Ni bi-metallic nano-particles on safranin O dye degradation was evaluated by UV light irradiations. Ag/Ni bi-metallic nanoparticles were synthesized by the green approach using Zingiber officinale root (Zinger) extract. The average particles size of Ag/Ni bi-metallic nanoparticles was found to be 70-88 nm from SEM image and from XRD patterns it was confirmed that the existence of Ag/Ni bi-metallic nano-particles. 8 mg of Ag/Ni bi-metallic nanoparticles present in 40 mL of 10 ppm dye, degraded completely in presence of UV light irradiations within 30 min time durations. The effect of dye degradation within a short period of time (30 min) was due to wide band gap energy and photochemical redox reactions.

Controllable synthesis of TiO2 nanoparticles and their photocatalytic activity in dye degradation

2020 ◽  
Vol 126 ◽  
pp. 110842 ◽  
Author(s):  
Krishnamoorthy Sathiyan ◽  
Ronen Bar-Ziv ◽  
Orit Mendelson ◽  
Tomer Zidki
Keyword(s):  
Photocatalytic Activity ◽  
Tio2 Nanoparticles ◽  
Dye Degradation ◽  
Controllable Synthesis

scholarly journals Dye degradation performance, bactericidal behavior and molecular docking analysis of Cu-doped TiO2 nanoparticles

RSC Advances ◽  
2020 ◽  
Vol 10 (41) ◽  
pp. 24215-24233 ◽  
Author(s):  
M. Ikram ◽  
E. Umar ◽  
A. Raza ◽  
A. Haider ◽  
S. Naz ◽  
...  
Keyword(s):  
Molecular Docking ◽  
Tio2 Nanoparticles ◽  
Chemical Method ◽  
Dye Degradation ◽  
Sol Gel ◽  
Docking Analysis ◽  
Doped Tio2 ◽  
Molecular Docking Analysis

Copper-doped TiO2 was prepared with a sol–gel chemical method.

Greener technology for organic reactive dye degradation in textile dye-contaminated field soil and in situ formation of “electroactive species” at the anode by electrokinetics

RSC Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 3552-3560 ◽  
Author(s):  
Sivasankar Annamalai ◽  
Manikandan Santhanam ◽  
Subramanian Sudanthiramoorthy ◽  
Kannan Pandian ◽  
Marta Pazos
Keyword(s):  
Dye Degradation ◽  
Reactive Dye ◽  
Textile Dye ◽  
Field Soil ◽  
In Situ Formation ◽  
Electroactive Species ◽  
Contaminated Field ◽  
Electrokinetic Process

The present study focuses on the electrokinetic process for the in situ formation of electroactive species at the anode.

Photodegradation of organic dyes based on anatase and rutile TiO2 nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 2746-2759 ◽  
Author(s):  
Ashish Gautam ◽  
Anuraj Kshirsagar ◽  
Rahul Biswas ◽  
Shaibal Banerjee ◽  
Pawan K. Khanna
Keyword(s):  
Tio2 Nanoparticles ◽  
Organic Dyes ◽  
Dye Degradation ◽  
Uv Light ◽  
Anatase Phase ◽  
Maximum Efficiency ◽  
Degradation Study ◽  
Rutile Tio2 ◽  
Rutile Titania

Dye degradation study using anatase and rutile titania suggests maximum efficiency of about 88% using anatase phase for MB under short UV light however, the maximum degradation under long UV light was not more than 65% (anatase/ rutile/EBT).

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