Application of inorganic perovskite LaNiO3 partial substituted by Ce and Cu in absorbance and photocatalytic degradation of antibiotics

Chen, Chen; Bao, Ruiyu; Ling, Yang; Tai, Shuyun; Zhao, Yue; Wang, Wenzhong; Xia, Jianxin; Li, Hua

doi:10.1016/j.apsusc.2021.152026

Cited by 39 publications

(25 citation statements)

References 53 publications

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“…Different parameters such as doping, grain size, annealing treatment and type of transition (direct or indirect), create differences in Eg values ( Hameeda et al, 2021 ). The band gap energies of Ag 3 PO 4 and LaNiO 3 were found to be 2.36 and 2.40 eV respectively, which are similar to previous findings ( Li et al, 2019 ; Chen et al, 2022 ). These photocatalysts have comparable band gap energies.…”

Section: Resultssupporting

confidence: 90%

“…However, due few disadvantages of silver phosphate such as: photogenerated electrons can easily reduce Ag + in Ag 3 PO 4 to elemental silver (Ag 0 ), and electron-hole pair recombination. ( Zhang et al, 2014 ; Chen et al, 2022 ). The composite formation is an effective method for expanding absorption from ultraviolet to visible region that either adds a new band into the initial band or alters the valence band (VB) or conduction band (CB), improving photocatalytic activity ( Zhang et al, 2017 ; Lv et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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Perovskite LaNiO3/Ag3PO4 heterojunction photocatalyst for the degradation of dyes

et al. 2022

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Pristine lanthanum nickelate (LaNiO3), silver phosphate (Ag3PO4) and perovskite lanthanum nickelate silver phosphate composites (LaNiO3/Ag3PO4) were prepared using the facile hydrothermal method. Three composites were synthesized by varying the percentage of LaNiO3 in Ag3PO4. The physical properties of as-prepared samples were studied by powder X-ray diffraction (pXRD), Fourier-transform infrared (FT-IR), Scanning electron microscopy (SEM) and Energy-dispersive X-ray (EDX). Among all synthesized photocatalysts, 5%LaNiO3/Ag3PO4 composite has been proved to be an excellent visible light photocatalyst for the degradation of dyes i.e., rhodamine B (RhB) and methyl orange (MO). The photocatalytic activity and stability of Ag3PO4 were also enhanced by introducing LaNiO3 in Ag3PO4 heterojunction formation. Complete photodegradation of 50 mg/L of RhB and MO solutions using 25 mg of 5%LaNiO3/Ag3PO4 photocatalyst was observed in just 20 min. Photodegradation of RhB and MO using 5%LaNiO3/Ag3PO4 catalyst follows first-order kinetics with rate constants of 0.213 and 0.1804 min−1, respectively. Perovskite LaNiO3/Ag3PO4 photocatalyst showed the highest stability up to five cycles. The photodegradation mechanism suggests that the holes (h+) and superoxide anion radicals O2 •− plays a main role in the dye degradation of RhB and MO.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Perovskite LaNiO3/Ag3PO4 heterojunction photocatalyst for the degradation of dyes

et al. 2022

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“…From the investigation of UV‐ Vis diffuse absorbance spectra in (Figure S3), an absorption band of 764 nm of LaCeNiO 3 , 43 742 nm of LaNiO 3 , 54 and 686 nm of CeNiO 3 55 indicated that absorption of the materials is in the range of visible and near IR of the solar radiation spectrum. The perovskite oxide energy bandgap was investigated using the UV‐ Vis diffuse reflectance spectra Tauc plot, as shown in Figure 6 and from the Tauc equation Equation (), evaluated optical bandgap (E g ) energy 56 …”

Section: Resultsmentioning

confidence: 99%

“…The substitution of the appropriate concentration of dopant Ce in the sites of La will promote the LaCeNiO 3 to give better performance 39 . The Ce‐doped LaNiO 3 was used in tremendous application fields such as a catalyst for hydrogen production and glycerol steam reforming, photocatalytic degradation, and syngas production 40‐44 . Herein, the iodine reduction catalytic activity of the CEs, the current conversion efficiency, and electrochemical properties of the DSSCs with a perovskite CE was investigated by the partial substitution of 0.2% Ce in La sites, creating La 0.8 Ce 0.2 NiO 3 perovskite has improved performance than LaNiO 3 along with CeNiO 3 .…”

Section: Introductionmentioning

confidence: 99%

Configuration of Ce‐doped LaNiO ₃ as an alternative to platinum‐free counter electrodes for dye‐sensitized solar cells

Gunasekaran

James

Maridevaru

et al. 2022

Intl J of Energy Research

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Summary The exorbitant cost, corrosive nature and rare abundance of Pt as counter electrodes has hampered the availability of dye‐sensitized solar cells (DSSCs). Perovskites, the complex metal oxides that have a diverse variety of oxidation states and high oxygen vacancy concentrations, have sparked a lot of interest in energy storage and conversion, with researchers focusing on alternative ideas for rate‐cut counter electrodes to magnify the cost‐cutting of DSSCs. Herein, instead of Pt, the three hydrothermally synthesized perovskites LaCeNiO3, LaNiO3, and CeNiO3 are employed as photocathodes for the fabrication of DSSCs. The electrochemical studies reveal that their electrocatalytic activity towards the iodine/iodide electrolyte is akin to a typical Pt photocathode. The electrons released by the perovskites by oxygen reduction reaction on its surface reduce the I3− to I−, thus the regeneration of the dye to its ground state happens by collecting electrons from the I− ion redox mediator, and finally oxidation of I− to I3− takes place. The LaCeNiO3 shows a higher short circuit current (13.75 mA cm−2) with a power conversion efficiency of 3.46%. It has 579 mV of open‐circuit voltage with a 0.37 fill factor value. The LaNiO3 shows lower values in comparison with LaCeNiO3 because the A‐site cation doping creates lattice deficiencies in LaCeNiO3 making it good for the iodine reduction reaction.

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“…As depicted in Tables S2 and S3, the R 2 value of all fitted curves is greater than 0.83, showing the reliability of the obtained results. 15 In order to further analyze the photocatalytic degradation of TC in the L1C1 system, the degraded TC solution was analyzed by liquid chromatography−mass spectrometry (LC− MS) to identify the intermediate products. Under visible light irradiation, the m/z of the intermediate products is found to be 360, 280, and 254.…”

Section: Photocatalytic Degradationmentioning

confidence: 99%

Efficient Visible-Light-Driven Tetracycline Degradation and Cr(VI) Reduction over a LaNi_1–xFe_xO₃ (0 ≤ x ≤ 1)/g-C₃N₄ Type-II Heterojunction Photocatalyst

et al. 2023

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The development of efficient, stable, and visible-light-responsive photocatalysts is crucial to address the pollution of water bodies by toxic heavy metal ions and organic antibiotics. Herein, a series of LaNi1–x Fe x O3/g-C3N4 heterojunction photocatalysts are prepared by a simple wet chemical method. Moreover, LaNi0.8Fe0.2O3/g-C3N4 composites are characterized by various methods, including structure, morphology, optical, and electrochemical methods and tetracycline degradation and photocatalytic reduction of Cr(VI) under visible light irradiation. Then, the photocatalytic performance of as-prepared LaNi0.8Fe0.2O3/g-C3N4 composites is evaluated. Compared with pure LaNi0.8Fe0.2O3 and g-C3N4, the LaNi0.8Fe0.2O3/g-C3N4 composite photocatalysts exhibit excellent photocatalytic performance due to synergy of doping and constructing heterojunctions. The results show that the doping of Fe ions can increase the concentration of oxygen vacancies, which is ultimately beneficial to the formation of electron traps. Moreover, the type-II heterojunction formed between LaNi0.8Fe0.2O3 and g-C3N4 effectively strengthens the separation and transfer of photoinduced carriers, thereby promoting photocatalytic activity. Furthermore, the photocatalytic activity of the LaNi0.8Fe0.2O3/g-C3N4 photocatalyst remains almost unchanged after three cycles, indicating long-term stability. Ultimately, the photocatalytic mechanism of the LaNi0.8Fe0.2O3/g-C3N4 composites is proposed.

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Application of inorganic perovskite LaNiO3 partial substituted by Ce and Cu in absorbance and photocatalytic degradation of antibiotics

Cited by 39 publications

References 53 publications

Perovskite LaNiO3/Ag3PO4 heterojunction photocatalyst for the degradation of dyes

Perovskite LaNiO3/Ag3PO4 heterojunction photocatalyst for the degradation of dyes

Configuration of Ce‐doped LaNiO ₃ as an alternative to platinum‐free counter electrodes for dye‐sensitized solar cells

Efficient Visible-Light-Driven Tetracycline Degradation and Cr(VI) Reduction over a LaNi_1–xFe_xO₃ (0 ≤ x ≤ 1)/g-C₃N₄ Type-II Heterojunction Photocatalyst

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Application of inorganic perovskite LaNiO3 partial substituted by Ce and Cu in absorbance and photocatalytic degradation of antibiotics

Cited by 39 publications

References 53 publications

Perovskite LaNiO3/Ag3PO4 heterojunction photocatalyst for the degradation of dyes

Perovskite LaNiO3/Ag3PO4 heterojunction photocatalyst for the degradation of dyes

Configuration of Ce‐doped LaNiO 3 as an alternative to platinum‐free counter electrodes for dye‐sensitized solar cells

Efficient Visible-Light-Driven Tetracycline Degradation and Cr(VI) Reduction over a LaNi1–xFexO3 (0 ≤ x ≤ 1)/g-C3N4 Type-II Heterojunction Photocatalyst

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Configuration of Ce‐doped LaNiO ₃ as an alternative to platinum‐free counter electrodes for dye‐sensitized solar cells

Efficient Visible-Light-Driven Tetracycline Degradation and Cr(VI) Reduction over a LaNi_1–xFe_xO₃ (0 ≤ x ≤ 1)/g-C₃N₄ Type-II Heterojunction Photocatalyst