A 3D heterometallic Ni(ii)/K(i) MOF with a rare rna topology: synthesis, structural features, and photocatalytic dye degradation modeling

2019 ◽  
Vol 43 (44) ◽  
pp. 17457-17465 ◽  
Author(s):  
Marjan Abedi ◽  
Ghodrat Mahmoudi ◽  
Payam Hayati ◽  
Barbara Machura ◽  
Fedor I. Zubkov ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Dye Degradation ◽  
Structural Features ◽  
Bromocresol Green ◽  
Degradation Modeling ◽  
Photocatalytic Dye Degradation

A new picolinate-driven Ni/K MOF was prepared by different methods, fully characterized, and explored in the photocatalytic degradation of bromocresol green.

Sol–Gel Assisted Isotropic Morphological Progression in Nanostructured MoO3 and Allied Investigations on Photocatalytic Dye-Degradation

2019 ◽  
Vol 19 (6) ◽  
pp. 3479-3486 ◽  
Author(s):  
Nilam Qureshi ◽  
Manish Shinde ◽  
Sudhir Arbuj ◽  
Sunit Rane ◽  
Anand Bhalerao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Optical Properties ◽  
Photocatalytic Degradation ◽  
Rate Constants ◽  
Dye Degradation ◽  
Sol Gel ◽  
High Rate ◽  
Photocatalytic Dye Degradation ◽  
Gel Technique ◽  
Synthesis Protocol

We report tunable-morphology oriented facile yet scalable route to synthesize 1D (nanorod) and 2D (nanobelt) MoO3 nanostructures at gram scale using conventional as well as sonochemistry assisted sol–gel technique. The structural, morphological and optical properties of the samples can be befittingly altered by varying the synthesis protocol. The resultant orthorhombic MoO3 nanomorphs demonstrated efficient and expeditious photocatalytic degradation of the pollutant dye, Methylene Blue (MB). We have observed that appreciable photocatalytic MB dye-degradation can be accomplished within 30 minutes with high rate constants of 0.0786 min−1 and 0.233 min−1 for rod and belt-like MoO3-nanostructures, respectively. The pilot results indicate that the resultant MoO3 nanomorphs can be potentially used as solar light driven industrial photocatalyst material with their intrinsic photostability.

scholarly journals Tuning the structural properties of cadmium–aluminum layered double hydroxide for enhanced photocatalytic dye degradation

RSC Advances ◽  
2020 ◽  
Vol 10 (70) ◽  
pp. 43066-43074
Author(s):  
Daniel Saliba ◽  
Salah Eddin El Jamal ◽  
Antranik Jonderian ◽  
Manal Ammar ◽  
Mohamad Hmadeh ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Degradation ◽  
Structural Properties ◽  
Layered Double Hydroxide ◽  
Dye Degradation ◽  
Hierarchical Structures ◽  
Reaction Diffusion ◽  
Photocatalytic Dye Degradation ◽  
Double Hydroxide

Hierarchical structures of Cd Al LDH of various cationic ratios of Cd : Al are successfully synthesized via the reaction diffusion framework. The obtained microspheres are investigated for the photocatalytic degradation of methylene blue.

scholarly journals Development of AgFeO2/rGO/TiO2 Ternary Composite Photocatalysts for Enhanced Photocatalytic Dye Decolorization

Crystals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 923
Author(s):  
Nasir Shehzad ◽  
Muhammad Zafar ◽  
Muhammad Ashfaq ◽  
Abdul Razzaq ◽  
Parveen Akhter ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Dye Degradation ◽  
Dye Decolorization ◽  
Degradation Process ◽  
Polluted Water ◽  
Ternary Composite ◽  
Composite Photocatalysts ◽  
Reduced Graphene ◽  
Vis Spectroscopy ◽  
Photocatalytic Dye Degradation

Dyestuff is one of the most widely released pollutants into the environment. Many approaches have been considered to deal with the dye removal from polluted water such as adsorption, ultrafiltration, osmosis, solvent extraction and photocatalytic degradation. The photocatalytic degradation process is one of the most beneficial, economical and environmentally friendly ways to degrade the organic pollutants from wastewater. In this study, an efficient ferrite-based photocatalyst, AgFeO2/rGO/TiO2 was successfully developed using simple deposition and reflux method. Physical, chemical and structural properties were analyzed by using XRD, FTIR Raman and PL spectroscopy. The efficiency of photocatalyst was investigated for the decolorization of methyl blue (MB) dye and activity was measured through UV-vis spectroscopy. The effect of parameters like pH, concentrations of MB dye, and loading of silver ferrite (AgFeO2) was investigated. The study depicted that the properties of TiO2 were improved due to addition of silver ferrite and reduced graphene oxide (rGO). The 2.5% AgFeO2/rGO/TiO2 exhibited the highest efficiency and completely degraded the 50 ppm of MB dye in 30 min. The parametric study revealed that dye decolorization is faster in a neutral solution than in basic and acidic medium. The higher performance of the photocatalyst was attributed to the reduced charge recombination and improved optical properties. Thus, AgFeO2/rGO/TiO2 can be a potential composite for photocatalytic dye degradation and other photocatalytic applications under UV-Visible light irradiations.

Studies on the drastic improvement of photocatalytic degradation of acid orange-74 dye by TPPO capped CuO nanoparticles in tandem with suitable electron capturing agents

RSC Advances ◽  
2015 ◽  
Vol 5 (54) ◽  
pp. 43815-43823 ◽  
Author(s):  
Aarti Sharma ◽  
Raj Kumar Dutta
Keyword(s):  
Photocatalytic Degradation ◽  
Dye Degradation ◽  
Cuo Nanoparticles ◽  
Acid Orange ◽  
Photocatalytic Dye Degradation

Photocatalytic dye degradation of CuO nanoparticles in the presence of K2S2O8.

scholarly journals Review on green carbon dot-based materials for the photocatalytic degradation of dyes: fundamentals and future perspective

2021 ◽  
Author(s):  
Nivetha Basavaraj ◽  
Anithadevi Sekar ◽  
Rakhi Yadav
Keyword(s):  
Photocatalytic Degradation ◽  
Dye Degradation ◽  
Future Perspective ◽  
Carbon Dot ◽  
Fundamental Properties ◽  
Degradation Of Dyes ◽  
Photocatalytic Dye Degradation

Systematic illustration of CDs derived from green sources for potential photocatalytic dye degradation by altering the fundamental properties.

Biogenic synthesis of copper nanoparticles from rose (Rosa indica L.) and their applications in photocatalytic degradation of Malachite Green and Carbol Fuchsin dyes

2020 ◽  
Vol 10 ◽  
Author(s):  
Manmeet Kaur ◽  
Suman Prajapati ◽  
Samneek Cholia ◽  
Jaskeet Singh Mann ◽  
Gurpreet Singh
Keyword(s):  
Photocatalytic Degradation ◽  
Malachite Green ◽  
Copper Nanoparticles ◽  
Dye Degradation ◽  
Industrial Effluent ◽  
Copper Nanoparticle ◽  
Synthesis Of Nanoparticles ◽  
Carbol Fuchsin ◽  
Double Beam ◽  
The Rose

Background: In the recent years, the green synthesis of nanoparticles has taken a lead role over the conventional chemical and physical approach due to its non-toxic, cost effective parameters and has found its place in various applications. Objectives: The major objectives of this study was to synthesise and characterize the copper nanoparticles using the rose extract at different set of conditions and analyse these nanoparticles as a source of dye degradation agent under sunlight conditions. Methods: Present study was conducted with the aim to synthesis the copper nanoparticle using the rose petal extract. The components present the in the extract act as the reduction and stabilization agents for the synthesis of CuNPs. The synthesized nanoparticles were characterized by using UV-VIS, FTIR, XRD and SEM analysis. Photocatalytic degradation of two dyes (Malachite Green and Carbol fuchsin) was analysed using double beam spectroscopic analysis Results: UV-Vis analysis indicated the presence of a peak at around 630 nm. The FT-IR analysis indicated the involvement of various biomolecules during the synthesis of nanoparticles. The structure and the conformation was elucidated using XRD and SEM showed the agglomerated form of the synthesized nanoparticles with the size range of about 60-90 nm. The synthesised copper nanoparticles was used for degradation of malachite green and carbol fuchsin dye using photocatalytic under sunlight irradiation. UV-Vis spectral analysis indicated that synthesised copper nanoparticle act more effective in degradation of malachite green (around 95%) whereas carbol fuchsin showed a maximum degradation by 52% therefore suggesting that CuNPs act as an efficient photo catalyst in dye degradation. Conclusion: The results obtained from this study indicates that rose extract has the potential of synthesis of copper nanoparticles which is non-toxic and convenient approach as compared to physical and chemical synthesis. These nanoparticles can be effectively employed as dye decolourization agents to treat industrial effluent and prevent the environmental pollution.

scholarly journals Vanadium doped CaTiO3 cuboids: Role of vanadium in improving the photocatalytic activity

2021 ◽  
Author(s):  
Harsha Bantawal ◽  
Sandhya U. Shenoy ◽  
Denthaje Krishna Bhat
Keyword(s):  
Photocatalytic Activity ◽  
Water Splitting ◽  
Dye Degradation ◽  
Low Cost ◽  
Physicochemical Stability ◽  
Photocatalytic Dye Degradation

CaTiO3 has attracted enormous interest in the field of photocatalytic dye degradation and water splitting owing to its low cost, excellent physicochemical stability and structural tunability. Herein, we have developed...

Efficient photocatalytic dye degradation by flowerlike MoS2/SrFe12O19 heterojunction under visible light

2021 ◽  
pp. 149855
Author(s):  
Sijing Chen ◽  
Yongjiang Di ◽  
Hang Li ◽  
Mengyu Wang ◽  
Bi Jia ◽  
...  
Keyword(s):  
Visible Light ◽  
Dye Degradation ◽  
Photocatalytic Dye Degradation
Sign in / Sign up

Export Citation Format

Share Document