Improved photocatalytic decomposition of aqueous Rhodamine-B by solar light illuminated hierarchical yttria nanosphere decorated ceria nanorods

Magdalane, C. Maria; Kaviyarasu, K.; Priyadharsini, G. Maria Assuntha; Bashir, A.K.H.; Mayedwa, Noluthando; Matinise, N.; Исаев, А. Б.; Al-Dhabi, Naïf Abdullah; Arasu, Mariadhas Valan; Arokiyaraj, Selvaraj; Kennedy, J.; Mâaza, M.

doi:10.1016/j.jmrt.2018.11.019

Cited by 107 publications

(20 citation statements)

References 60 publications

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“…One of the best nano photocatalysts in nano metal oxides with an excellent n-type semiconductor having bandgap energy of 3.6 eV was tin oxide (SnO 2 ) nanoparticles [14]. Tetragonal crystal configuration of SnO 2 nanoparticles has latent applications in the pitch of catalysis, rechargeable lithium batteries, optoelectronic devices, and transparent conducting electrodes [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of SnO2 nanoparticles using Delonix elata leaf extract: Evaluation of its structural, optical, morphological and photocatalytic properties

et al. 2020

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This research article reports the green synthesis of SnO 2 nanoparticles and its structural, optical, morphological and photocatalytic behaviors has been achieved by using Delonix elata leaf extract. Three different synthesis routes (i.e., sonication, wet chemical, and microwave method) are employed to prepare SnO 2 nanoparticles. A comparative analysis was performed on the main physical properties to get a broader understanding of the effect of processing parameters on prepared SnO 2 nanoparticles. The prepared SnO 2 nanoparticles were characterized using different techniques like TG, XRD, FESEM, EDX, FT-IR, UV-Vis, PSD, and BET surface area analysis. Furthermore, the application of the prepared SnO 2 nanoparticles as photocatalyst was proceeded to degrade rhodamine B dye.

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Section: Introductionmentioning

confidence: 99%

Green synthesis of SnO2 nanoparticles using Delonix elata leaf extract: Evaluation of its structural, optical, morphological and photocatalytic properties

et al. 2020

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“…5 d. Furthermore, the decomposition efficiency of Congo red dye was shown in Fig. 6 a and found to be 97% in the acidic medium with 120 min of irradiation of light source, whereas the degradation was taking a longer time duration in the basic medium 81 – 84 . The complete mineralization of the CR was attained within 120 min in acidic conditions.…”

Section: Resultsmentioning

confidence: 92%

Facile synthesis and defect optimization of 2D-layered MoS2 on TiO2 heterostructure for industrial effluent, wastewater treatments

Ramalingam

Chinnapan

Bojarajan

et al. 2020

Sci Rep

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Current research is paying much attention to heterojunction nanostructures. Owing to its versatile characteristics such as stimulating morphology, affluent surface-oxygen-vacancies and chemical compositions for enhanced generation of reactive oxygen species. Herein, we report the hydrothermally synthesized TiO2@MoS2 heterojunction nanostructure for the effective production of photoinduced charge carriers to enhance the photocatalytic capability. XRD analysis illustrated the crystalline size of CTAB capped TiO2, MoS2@TiO2 and L-Cysteine capped MoS2@TiO2 as 12.6, 11.7 and 10.2 nm, respectively. The bandgap of the samples analyzed by UV–Visible spectroscopy are 3.57, 3.66 and 3.94 eV. PL spectra of anatase phase titania shows the peaks present at and above 400 nm are ascribed to the defects in the crystalline structure in the form of oxygen vacancies. HRTEM reveals the existence of hexagonal layered MoS2 formation on the spherical shaped TiO2 nanoparticles at the interface. X-ray photoelectron spectroscopy recommends the chemical interactions between MoS2 and TiO2, specifically, oxygen vacancies. In addition, the electrochemical impedance spectroscopy studies observed that L-MT sample performed low charge transfer resistance (336.7 Ω cm2) that promotes the migration of electrons and interfacial charge separation. The photocatalytic performance is evaluated by quantifying the rate of Congo red dye degradation under visible light irradiation, and the decomposition efficiency was found to be 97%. The electron trapping recombination and plausible photocatalytic mechanism are also explored, and the reported work could be an excellent complement for industrial wastewater treatment.

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“…Rhodamine B is a toxic alkaline cationic dye, which was used as a food additive, but has been forbidden due to its high carcinogenic potential (Wu et al, 2018;Lops et al, 2019;Tian et al, 2019;Guo et al, 2020). Furthermore, it can also cause other serious diseases such as visceral disease and red skin staining (Alcocer et al, 2018;Liu et al, 2019;Maria Magdalane et al, 2019). It is very difficult to degrade rhodamine B under natural conditions.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Boron Doped TiO2 as an Efficient Visible Light-Driven Photocatalyst for Organic Dye Degradation With High Reusability

Niu

Chen

et al. 2020

Front. Chem.

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No visible light activity is the bottle neck for wide application of TiO 2 , and Boron doping is one of the effective way to broaden the adsorption edge of TiO 2 . In this study, several Boron doped TiO 2 materials were prepared via a facile co-precipitation and calcination process. The B doping amounts were optimized by the degradation of rhodamine B (Rh B) under visible light irradiation, which indicated that when the mass fraction of boron is 6% (denoted as 6B-TiO 2 ), the boron doped TiO 2 materials exhibited the highest activity. In order to investigate the enhanced mechanism, the difference between B-doped TiO 2 and bare TiO 2 including visible light harvesting abilities, separation efficiencies of photo-generated electron-hole pairs, photo-induced electrons generation abilities, photo-induced charges transferring speed were studied and compared in details. h + and · O − 2 were determined to be the two main responsible active species in the photocatalytic oxidation process. Besides the high degradation efficiency, 6B-TiO 2 also exhibited high reusability in the photocatalysis, which could be reused at least 5 cycles with almost no active reduction. The results indicate that 6B-TiO 2 has high photocatalytic degradation ability toward organic dye of rhodamine B under visible light irradiation, which is a highly potential photocatalyst to cope with organic pollution.

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Improved photocatalytic decomposition of aqueous Rhodamine-B by solar light illuminated hierarchical yttria nanosphere decorated ceria nanorods

Cited by 107 publications

References 60 publications

Green synthesis of SnO2 nanoparticles using Delonix elata leaf extract: Evaluation of its structural, optical, morphological and photocatalytic properties

Green synthesis of SnO2 nanoparticles using Delonix elata leaf extract: Evaluation of its structural, optical, morphological and photocatalytic properties

Facile synthesis and defect optimization of 2D-layered MoS2 on TiO2 heterostructure for industrial effluent, wastewater treatments

Optimization of Boron Doped TiO2 as an Efficient Visible Light-Driven Photocatalyst for Organic Dye Degradation With High Reusability

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