Helianthus annuus assisted green synthesis of Co 3 O 4 and Ag‐Co 3 O 4 and evaluation of their catalytic activities towards photodegradation of crystal violet dye

2021 ◽  
Author(s):  
Muhammad Saeed ◽  
Atta Ulhaq ◽  
Majid Muneer ◽  
Muhammad Usman ◽  
Syed Ali Raza Naqvi ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Helianthus Annuus ◽  
Crystal Violet ◽  
Catalytic Activities ◽  
Crystal Violet Dye

scholarly journals Green synthesis of magnetic α–Fe2O3 nanospheres using Bridelia retusa leaf extract for Fenton-like degradation of crystal violet dye

2021 ◽  
Author(s):  
Raja Selvaraj ◽  
Shraddha Pai ◽  
Gokulakrishnan Murugesan ◽  
Sadanand Pandey ◽  
Ruchi Bhole ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Green Synthesis ◽  
Crystal Violet ◽  
Leaf Extract ◽  
Bet Analysis ◽  
Crystal Violet Dye ◽  
Pros And Cons ◽  
Manufacturing Techniques ◽  
The Stability ◽  
Bridelia Retusa

AbstractThe reach of nanotechnology has permeated into a range of disciplines and systematically revolutionized many manufacturing techniques. Today, nanoparticles are fabricated using varied approaches, each with its pros and cons. Of them, the green synthesis approach has been very effective in terms of overall economics and the stability of nanoparticles. The current study investigates the use of the leaf extract of Bridelia retusa for the synthesis of iron oxide nanoparticles. Typical of these nanoparticles, no specific peak was discernible on employing UV–visible spectroscopy. The size, morphological features, and crystallinity of the nanoparticles were determined by employing scanning electron microscopy and electron diffraction spectroscopy. Almost uniformly sized at 38.58 nm, the nanoparticles were spherical, constituting elemental iron at 11.5% and elemental oxygen at 59%. Their relative composition confirmed the nanoparticles to be iron oxide. X-ray diffraction studies showed the particles to be hexagonal and rhombohedral, estimating the crystallite size at 24.27 nm. BET analysis put the pore volume at 0.1198 cm3/g and pore diameter at 7.92 nm. The unique feature of the nanoparticles was that the specific surface area was 75.19 m2/g, which is more than 12 times higher than commercial α-Fe2O3. The participation of a variety of biochemicals in the leaf extract towards the reduction-cum-stabilization was confirmed using FTIR analysis. The Fenton-like catalytic activity of the nanoparticles was put to test by attempting to degrade crystal violet dye, which was completely achieved in 270 min. The kinetics of the degradation was also modelled in the study.

On-Demand Guest Release from MOF-5 Sealed with Nitrophenylacetic Acid Photocapping Groups

2019 ◽  
Author(s):  
Jingjing Yan ◽  
Rick Homan ◽  
Corrianna Boucher ◽  
Prem N. Basa ◽  
Katherine Fossum ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Crystal Violet ◽  
Dye Molecules ◽  
Phenyl Acetic Acid ◽  
On Demand ◽  
Crystal Violet Dye ◽  
Dye Diffusion ◽  
Triphenylacetic Acid

Recently, we demonstrated that triphenylacetic acid could be used to seal dye molecules within MOF-5, but guest release required digestion of the framework by treatment with acid. We prepared the sterically bulky photocapping group [bis-(3-nitro-benzyl)-amino]-(3-nitro-phenyl)-acetic acid (PC1) can prevent Crystal violet dye diffusion from inside MOF-5 until removed by photolysis.

On-Demand Guest Release from MOF-5 Sealed with Nitrophenylacetic Acid Photocapping Groups

2019 ◽  
Author(s):  
Jingjing Yan ◽  
Rick Homan ◽  
Corrianna Boucher ◽  
Prem N. Basa ◽  
Katherine Fossum ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Crystal Violet ◽  
Dye Molecules ◽  
Phenyl Acetic Acid ◽  
On Demand ◽  
Crystal Violet Dye ◽  
Dye Diffusion ◽  
Triphenylacetic Acid

Recently, we demonstrated that triphenylacetic acid could be used to seal dye molecules within MOF-5, but guest release required digestion of the framework by treatment with acid. We prepared the sterically bulky photocapping group [bis-(3-nitro-benzyl)-amino]-(3-nitro-phenyl)-acetic acid (PC1) can prevent Crystal violet dye diffusion from inside MOF-5 until removed by photolysis.

scholarly journals Sodium Docusate Surface-Modified Dispersible and Powder Zinc Peroxide Formulation: An Adsorbent for the Effective and Fast Removal of Crystal Violet Dye, an Emerging Wastewater Contaminant

ACS Omega ◽  
2021 ◽  
Vol 6 (35) ◽  
pp. 22570-22577
Author(s):  
Sachin ◽  
Deepak Joishar ◽  
Netra Pal Singh ◽  
Ezhilselvi Varathan ◽  
Nahar Singh
Keyword(s):  
Crystal Violet ◽  
Crystal Violet Dye ◽  
Zinc Peroxide ◽  
Surface Modified ◽  
Fast Removal

scholarly journals Efficient removal of crystal violet dye from aqueous solutions by vitreous tuff mineral

2014 ◽  
Vol 35 (12) ◽  
pp. 1508-1519 ◽  
Author(s):  
A. Blanco-Flores ◽  
A. Colín-Cruz ◽  
E. Gutiérrez-Segura ◽  
V. Sánchez-Mendieta ◽  
D.A. Solís-Casados ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Crystal Violet ◽  
Efficient Removal ◽  
Crystal Violet Dye

Synthesis of g‐C 3 N 4 , Zn 3 (PO 4 ) 2 and g‐C 3 N 4 /Zn 3 (PO 4 ) 2 Composites for Application in Photodegradation of Crystal Violet Dye under Solar Light

2021 ◽  
Vol 6 (28) ◽  
pp. 7002-7011
Author(s):  
Sachin Kumar Ben ◽  
Sakshi Gupta ◽  
Krishna Kumar Raj ◽  
Vimlesh Chandra
Keyword(s):  
Crystal Violet ◽  
Solar Light ◽  
Crystal Violet Dye
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