Green synthesis of TiO2 nanosheet by chemical method for the removal of Rhodamin B from industrial waste

Sonker, Rakesh K.; Hitkari, Gaurav; Sabhajeet, S. R.; Sikarwar, Samiksha; Rahul, .; Singh, Sandhya

doi:10.1016/j.mseb.2020.114577

Cited by 32 publications

(13 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For exploring the facet behavior of biosynthesized TiO2 nanoparticles, adsorptiondesorption spectra were documented using Brunauer-Emmett-Teller (BET) analysis, as shown in Figure 6. The adsorption-desorption isotherm was a classic type IV with an H4 hysteresis curve and mesoporous phases, as per IUPAC nomenclature [36]. This indicates uncontrolled multilayer formation, since the lateral contact between adsorbed molecules is stronger than on adsorbate and adsorbent surfaces.…”

Section: Bet Analysismentioning

confidence: 99%

“…The photo-induced chemical transformation reaction occurs on the catalyst surface in a standard photocatalytic degradation process. The production of electron-hole pairs (e − + h + ) in the catalyst regulates the basic mechanism of the photocatalytic reaction, which is followed by the generation of free radicals and their transport to the target, i.e., the interaction with target chemical species such as dyes [16,24,36]. Biosynthesized TiO2 nanoparticles were utilized as photocatalysts in this work for the catalytic degradation of dye.…”

Section: Photocatalytic Activitymentioning

confidence: 99%

“…When the biosynthesized nanoparticles are irradiated with light during photocatalysis, h + reacts with H2O or OH − to produce the first photo-excited conduction band electrons (e − ) and valence band holes (h + ). As a result, an OH • radical is generated, which acts as a powerful oxidizing agent and degrades the RhB during the reaction, as shown below [10,36,41].…”

Section: Photocatalytic Activitymentioning

confidence: 99%

See 2 more Smart Citations

Green Synthesis of TiO2 Nanoparticles Using Acorus calamus Leaf Extract and Evaluating Its Photocatalytic and In Vitro Antimicrobial Activity

et al. 2022

View full text Add to dashboard Cite

Here, we present an innovative and creative sustainable technique for the fabrication of titania (TiO2) using Acorus calamus (A. calamus) leaf extract as a new biogenic source, as well as a capping and reducing agent. The optical, structural, morphological, surface, and thermal characteristics of biosynthesized nanoparticles were investigated using UV, FTIR, SEM, DLS, BET, and TGA-DSC analysis. The phase formation and presence of nanocrystalline TiO2 were revealed by the XRD pattern. FTIR analysis revealed conjugation, as well as the presence of Ti–O and O–H vibrational bands. The nanoparticles were noticed to be globular, with an average size of 15–40 nm, according to the morphological analysis, and the impact of size quantification was also investigated using DLS. The photocatalytic activity of bare, commercial P-25 and biosynthesized TiO2 (G-TiO2) nanoparticles in aqueous solution of rhodamine B (RhB) dye was investigated under visible light irradiation at different time intervals. The biosynthesized TiO2 nanoparticles exhibited strong photocatalytic activity, degrading 96.59% of the RhB dye. Different kinetic representations were utilized to analyze equilibrium details. The pseudo-first-order reaction was best suited with equilibrium rate constant (K1) and regression coefficients (R2) values 3.72 × 10−4 and 0.99, respectively. The antimicrobial efficacy of the prepared nanoparticles was investigated using the disc diffusion technique. Further, biosynthesized TiO2 showed excellent antimicrobial activity against the selected gram-positive staining (B. subtilis, S. aureus) over gram-negative (P. aeruginosa, E. coli) pathogenic bacteria in comparison to bare TiO2.

show abstract

Section: Bet Analysismentioning

confidence: 99%

Section: Photocatalytic Activitymentioning

confidence: 99%

Section: Photocatalytic Activitymentioning

confidence: 99%

See 1 more Smart Citation

Green Synthesis of TiO2 Nanoparticles Using Acorus calamus Leaf Extract and Evaluating Its Photocatalytic and In Vitro Antimicrobial Activity

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Sonker and co-workers reported on fabrication of TiO2 NPs with nanosheet morphology using aloe vera leaves extract. The synthesized sample was able to degrade 58 % of Rhodamine B dye in 50 minutes under visible light irradiation [21]. In another work, TiO2 NPs was successfully produced with Salvia officinalis leaves extract.…”

Section: Titanium Dioxide Nanoparticlesmentioning

confidence: 98%

Photocatalytic Degradation with Green Synthesized Metal Oxide Nanoparticles – A Mini Review

Isa

Shameli

Jusoh

et al. 2021

JRNN

View full text Add to dashboard Cite

Water pollution is one of the major problems faced by mankind worldwide. With the increase of populations and urbanization, the natural water resources are under great threat due to the release of untreated effluent. An alternative treatment method, photocatalysis, emerged as a promising solution. Photocatalysis process utilizes photosensitive catalyst to degrade the pollutant and one of the most common catalyst being used is metal oxide. To increase the photocatalytic activity, nanosized metal oxide being used instead of its bulk form. In these recent years, metal oxide nanoparticles production has been shifted towards a more environmentally friendly process which is also commonly known as green synthesis. In this review, we discussed on the photocatalytic process and production via green synthesis of common metal oxide nanoparticles being used as photocatalyst.

show abstract

“…Rhodamine B (RhB) is a watersoluble dye, used as a coloring agent in many industries. The release of RhB-contaminated wastewaters may cause reproductive and nervous systems disorders and hence, it is essential to remove RhB dye from wastewater (Sonker et al 2020). Photocatalysis is one AOP process, comprising the effective use of light energy to generate hydroxyl radicals for the degradation of dyes (Bishnoi et al 2018;Sirdeshpande et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Characterization and photocatalytic activity of ZnO nanoflowers synthesized using Bridelia retusa leaf extract

et al. 2021

View full text Add to dashboard Cite

In the current work, the leaf extract of Bridelia retusa was used for the first time to synthesize zinc oxide nanoparticles (ZnONPs). A zinc nanoparticle-specific 364-nm peak was discerned via UV–Vis studies with a typical bandgap energy of 3.41 eV. FE-SEM micrographs revealed flower-shaped structure of the ZnONPs. EDS analysis corroborated the presence of zinc and oxygen. XRD spectrum established the wurtzite structure, sized at 11.06 nm. The mesoporous texture (4.89 nm) of the nanoparticles was deduced from BET analysis, proving a higher specific surface area than commercial ZnONPs. FTIR spectroscopy resulted in absorption bands typical for ZnONPs. Within a span of 165 min, under solar irradiation, the ZnONPs facilitated the photocatalytic degradation of Rhodamine B dye upto 94.74%. Exhibiting pseudo-first-order kinetics, the process had a degradation constant of 0.0109 min−1. It was concluded that numerous factors led to the high degradation efficiency. High values of bandgap energy and specific surface area, along with the mesoporous and crystalline nature of the ZnONPs led to the observed effect. The ZnONPs were also stabilized by the phytochemicals in the B. retusa leaves. The study is thus able to successfully demonstrate the huge potential in the field of environmental nanoremediation. The viability of using ZnONPs as solar photocatalysts for treating dye-laden industrial wastewater was thus attested.

show abstract

Green synthesis of TiO2 nanosheet by chemical method for the removal of Rhodamin B from industrial waste

Cited by 32 publications

References 57 publications

Green Synthesis of TiO2 Nanoparticles Using Acorus calamus Leaf Extract and Evaluating Its Photocatalytic and In Vitro Antimicrobial Activity

Green Synthesis of TiO2 Nanoparticles Using Acorus calamus Leaf Extract and Evaluating Its Photocatalytic and In Vitro Antimicrobial Activity

Photocatalytic Degradation with Green Synthesized Metal Oxide Nanoparticles – A Mini Review

Characterization and photocatalytic activity of ZnO nanoflowers synthesized using Bridelia retusa leaf extract

Contact Info

Product

Resources

About