Synthesis and Characterizations of Chromium Oxide Nanoparticles for the Photocatalytic Degradation | Chapter 8 | Innovative Solutions: A Systematic Approach towards Sustainable Future

 Aims: To synthesize chromium oxide nanoparticles by simple precipitation method, their characteristics and investigate the photocatalytic activity of these nanoparticle for the photodegradation of Brilliant Green (BG) dye.

Study Design: Synthesis of Cr₂O₃ nanoparticles by precipitation method and photocatalysis of Brilliant green by using Cr₂O₃  nanoparticles.

Place and Duration of Study: Department of Physics, School of Applied Sciences, REVA University, Bangalore, between January 2024 to May 2024.

Methodology: The Cr₂O₃ nanoparticles were synthesized by simple precipitation technique using chromium nitrate as precursor. The synthesized Cr₂O₃ nanoparticles were characterized by X-ray diffraction (XRD), ultraviolet-visible spectroscopy, scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) techniques.

Results: XRD patterns were well matched with the JCPDS card number 00-038-1479 with rhombohedral structure with the crystallite size of 15.98 nm. The SEM analysis revealed the oxide particles to have quasi spherical morphology. The band gap of Cr₂O₃ nanoparticles was calculated using Tauc’s plot and found to be 2.9 eV.  From the BET the maximum specific surface area was found to be 16.609 m²/g associated with a pore volume of 0.066 cc/g.

Conclusion: Chromium oxide is a very good catalyst and can be used for photodegradation of a dye and helpful in commercial production of removal of such pollutants.

 

Author (s) Details

 

Ruthu H S
Department of Physics, School of Applied Sciences, REVA University, Banglore-560064, Karnataka, India.

 

Sarvesha Chandra Shyagathur
Department of Physics, School of Applied Sciences, REVA University, Banglore-560064, Karnataka, India.

 

Abhishek Hiremath

Department of Physics, School of Applied Sciences, REVA University, Banglore-560064, Karnataka, India.

 

Jayadev Pattar
Department of Physics, School of Applied Sciences, REVA University, Banglore-560064, Karnataka, India.

 

Sreekanth R
Department of Chemistry, School of Applied Sciences, REVA University, Banglore-560064, Karnataka, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/mono/978-93-49238-47-3/CH8

Study About Fe-TiO2/AC and Co-TiO2/AC Composites Prepared from Waste Streams for an Efficient Removal and Photocatalytic Degradation of Cibacron Yellow F-4G Dye | Chapter 1 | Progress in Chemical Science Research Vol. 8

 Kinetic and adsorption studies of CYF-4G upon the Co-TiO2/AC and Fe-TiO2/AC composites were acted seeing allure pH at point of nothing charge (pHPZC) and utilizing array and photocatalytic exploratory established institution under cosmic-fake light. Activated element (AC) acquired from nut covering residues and TiO2 photocatalyst electrochemically caused from titanium scrap and drugged accompanying Fe and Co, individually, were used to generate the Fe-TiO2/AC and Co-TiO2/AC composites. The capability of the Fe-TiO2/AC and Co-TiO2/AC composites to adsorb and photocatalyze the shame of Cibacron Yellow F-4G (CYF-4G) from wastewater was examined. Thermogravimetric (TGA), leafing through energized matter microscopy (SEM), X-ray dissemination (XRD), a novel X-ray incorporation method (XRA), and basic study were used to judge drugged ACs (EA). Interesting connections were establish middle from two points SEM, XRA and TGA dossier and drugged amount of stimulant on ACs. Optimal dye adsorption was establish at a pH of 2.0. The CYF-4G adsorption action are trailed in accordance with the fake-second order model. Langmuir model equipped the adsorption dossier best choice. A decrease in adsorption ability was noticed when the motivation dope portion raised. A synergistic adsorption, evacuation and shame effectiveness of the dye nearly 100% was reached about 120 brief time period. under fake apparent dissemination.

Author(s) Details:

Roberto Machado Garcia,
Department of Chemistry, Universidad de Oriente, Patricio Lumumba s/n, CU-90 100 Santiago de Cuba, Cuba.

Robert Carleer,
Analytical and Circular Chemistry, University Hasselt, Agoralaan, Gebouw D, BE-3590 Diepenbeek, Belgium.

Maria Arada Pérez,
Department of Chemistry, Universidad de Oriente, Patricio Lumumba s/n, CU-90 100 Santiago de Cuba, Cuba.

Jeamichel Puente Torres,
Faculty of Electrical Engineering, Universidad de Oriente, CU-90-100 Santiago de Cuba, Cuba.

Ying Gu,
Zhejiang Ocean University, Zhoushan-316022, China.

Pieter Samyn,
Analytical and Circular Chemistry, University Hasselt, Agoralaan, Gebouw D, BE-3590 Diepenbeek, Belgium.

Jan Yperman,
Analytical and Circular Chemistry, University Hasselt, Agoralaan, Gebouw D, BE-3590 Diepenbeek, Belgium.

Please see the link here: https://stm.bookpi.org/PCSR-V8/article/view/10174

Effect of Tinospora Cordifolia Leaf Extract Concentrations on Optical and Photocatalytic Properties of Green Synthesized Silver Nanoparticles| Chapter 9 | New Frontiers in Physical Science Research Vol. 6

 Silver nanoparticles (AgNPs) have happened combined by way of green route utilizing Tinospora cordifolia (Giloe) leaf extract and studies of the ocular and photocatalytic features of combined white nanoparticles have been completed activity. The composition of AgNPs was resolved at various response occasions by UV-Vis spectrometer. The difference of piece content of combined AgNPs accompanying various concentrations of giloe extract was intentional and it is noticed that particle intensity increases accompanying the increase in the aggregation of giloe extract. The ocular band break strength of AgNPs was determined by utilizing Tauc’s connection and the difference of band breach strength accompanying the aggregation of plant extract was intentional. With the decrease in concentration of Giloi leaf extract, the ocular strength band break of AgNPs increases, that signifies a decrease in atom proportion. The green combined AgNPs operated as a good impetus for the depravity of Methylene Blue (MB) dye unprotected to seeable light. The MB dye disgraced to almost 90% inside 60 notes of uncovering opportunity.

Author(s) Details:

Suvankar Saha,
Department of Physics, Bodoland University, Kokrajhar, Assam-783370, India.

P. K. Mochahari,
Department of Physics, Bodoland University, Kokrajhar, Assam-783370, India.

Please see the link here: https://stm.bookpi.org/NFPSR-V6/article/view/9215

Green Synthesis of Silver Nanoparticles Using Azadirachta Indica and Tinospora Cordifolia Leaves Extracts- Their Optical and Photocatalytic Study| Chapter 5 | Research Aspects in Chemical and Materials Sciences Vol. 4

 Silver nanoparticles (AgNPs) have happened synthesised via green route utilizing two different plant extracts: Azadirachta indica (Neem) and Tinospora cordifolia (Giloe) leaves extracts. The composition of AgNPs has been noticed from the colour change of the solution and is further habitual by UV-Vis Spectroscopy. Optical properties of synthesized samples have happened carried out utilizing UV–VIS spectrophotometer. For Ag- A. indica NPs, the absorbance maximum occurs at 440 nm and the equivalent absorbance peak occurred at 345 nm in the case of Ag- T. cordifolia NPs. Optical band breach energy has existed estimated utilizing Tauc’s relation and differences of band gap strength at different opportunity intervals were analysed for the AgNPs samples able using Azadirachta indica (Neem) as well asTinospora cordifolia (Giloe) leaves extracts. Particle capacity has been establish to decrease with opportunity for Ag- A. indica NPs whereas piece size increases accompanying time for Ag- T. cordifolia NPs. The combined Ag NPs act as a incentive for the degradation of methylene vulgar (MB) dye under visible light. The portion of degradation was found expected 87.56% within 45 notes of exposure to apparent light.

Author(s) Details:

Suvankar Saha,
Department of Physics, Bodoland University, Kokrajhar, Assam-783370, India.

P. K. Mochahari,
Department of Physics, Bodoland University, Kokrajhar, Assam-783370, India.

Please see the link here: https://stm.bookpi.org/RACMS-V4/article/view/8692

Determining the Application of Nanomaterials to Environmental Remediation | Chapter 1 | Emerging Challenges in Environment and Earth Science Vol. 1

 Nanomaterials are extremely tiny, measuring 100nm or less in size. They have qualities that differ from the parent compound's original attributes due to their small size. They have a high reactivity and adsorption capability, making them suitable for environmental remediation. The goal of this study is to figure out how nanomaterials can be used to reduce pollution in the air, water, and soil. The current study demonstrates that nanoparticles can be employed to remediate water, air, and soil. The research also focuses on different forms of nanoadsorbants, nanocatalysts, and nanofilters. But, in the end, we must consider toxicity, which may be attributed to the small size of these particles. As a result, their toxicity should be analysed before they are used, and established methodologies devised by scientists for their usage.

Author(S) Details

V. S. Raut
Department of Chemistry, K V N Naik College, Nasik, India.

View Book:- https://stm.bookpi.org/ECEES-V1/article/view/4693