A facile synthesis of visible light driven Ni3V2O8 nano-cube/BiVO4 nanorod composite photocatalyst with enhanced photocatalytic activity towards degradation of acid orange 7

Arumugam, Swaminathan; Bavani, Thirungnanam; Preeyanghaa, Mani; Alaswad, Saleh O.; Neppolian, Bernaurdshaw; Madhavan, Jagannathan; Murugesan, Sepperumal

doi:10.1016/j.chemosphere.2022.136100

Cited by 17 publications

(8 citation statements)

References 34 publications

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“…This could be the result of hydroxyl radicals (OH • ) being produced when superoxide radicals interact with water molecules. The OH • and O2 •− that are created react with the methylene blue dye to fragment it into tiny pieces [20]. A greater synergistic effect of Ni-doped and SHMP for the formation of photocatalyst may also be the cause of SHMP:Ni:ZnO photocatalyst raising the degradation rate and enhancing the photocatalytic activity [24,25].…”

Section: Resultsmentioning

confidence: 99%

Highly Effective Photocatalytic Performance in Visible Light of Sodium hexametaphosphate Capped Ni-Doped ZnO Nanoparticles

Mageswari,

Bavani,

Madhavan

et al. 2023

ajc

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This study describes the microwave assisted synthesis of without and with sodium hexametaphosphate (SHMP) (1 mol%) capped 3 mol% Ni- doped ZnO nanoparticles. Various sophisticated analytical techniques were used to characterize the Ni-doped ZnO nanoparticles. The results showed that including SHMP capped 3 mol% Ni-doped ZnO nanoparticles has a significant influence on the photoctalyst and structural characteristics of the ZnO nanoparticles. Under visible light illumination, SHMP capped 3 mol% Ni-doped ZnO nanoparticles demonstrated better photocatalytic degradation of methylene blue dye. As a result, SHMP capped 3 mol% Ni-doped ZnO nanoparticles synthesized are suitable materials for the environmental applications.

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Section: Resultsmentioning

confidence: 99%

Highly Effective Photocatalytic Performance in Visible Light of Sodium hexametaphosphate Capped Ni-Doped ZnO Nanoparticles

Mageswari,

Bavani,

Madhavan

et al. 2023

ajc

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“…Similarly, Jin et al fabricated Zn 3 V 2 O 8 /AgI visible light Z-scheme photocatalyst for tetracycline degradation, which signi cantly promoted the migration e ciency and spatial partition of the photoexcited charge carriers and also maintained high redox potential [34]. Our group fabricated a Ni 3 V 2 O 8 /BiVO 4 nanocomposite and examined its photocatalytic performance towards AO7 degradation under visible light illumination, which showed 87% degradation which was higher than those of individual photocatalysts [35]. From the literature review and due to the suitable bandgap position of AgI and Ni 3 V 2 O 8 , the creation of a heterojunction between AgI and Ni 3 V 2 O 8 can be effective in reducing the fast recombination of the electrons and holes and leads to enlarge the electrons and holes separation.…”

Section: Introductionmentioning

confidence: 87%

A Novel Z-Scheme Ni3V2O8/AgI Visible Light Photocatalyst with Enhanced Photocatalytic Activity

Arumugam

Bavani

Preeyanghaa

et al. 2023

Preprint

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The newly developed Z-Scheme Ni3V2O8/AgI visible light photocatalytic heterojunction composite system was fabricated using wet chemical technique with different weight percentages 10, 20, and 30% of Ni3V2O8 for the destruction of (RhB) Rhodamine-B. The purely isolated photocatalyst was further investigated through XRD, UV-vis DRS, TEM, FT-IR, PL, SEM, HRTEM, EDS, and photocurrent measurements. The Ni3V2O8/AgI nanocomposite degraded 82% of RhB with a higher reaction rate coefficient value of 0.0603 min–1 than the other synthesized photocatalysts. The results showed that Z-Scheme heterojunction formation has improved the partition and migration of charged particles leading to intensification in photocatalytic activity when compared to individual photocatalysts. The optimized 20% of Ni3V2O8 nanocomposite was reused three times without any change in photocatalytic performance, which confirmed the stability of the optimized nanocomposite photocatalyst Ni3V2O8/AgI. The outcomes of the radical trapping experiments suggested that radicals •OH and O2•− play a part in RhB degradation. Based on this, a visible light photocatalytic heterogeneous Z-Scheme mechanism is proposed. As a result, the newly fabricated Z-Scheme heterojunction Ni3V2O8/AgI photocatalyst could be a robust material for treating RhB water.

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“…e t e 0 0 = ẃhere C 0e (mg. L −1 ) and C t (mg. L −1 ) are the AO7 concentrations at the sorption equilibrium time and at an irradiation time of t (min), respectively. According to the Langmuir-Hinshelwood kinetics model, the photocatalytic degradation of AO7 dye can be expressed by the following equation [42]:…”

Section: Photocatalytic Degradation Of Ao7mentioning

confidence: 99%

Synthesis of Fe-doped ZnO/biochar nanocomposites for acid orange 7 photodegradation and antibacterial activity under visible light region

Nhu,

Nguyet,

Bich

et al. 2024

Mater. Res. Express

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In the present study, different molar ratios of Fe-doped ZnO/biochar (FZBC) were synthesized using a coprecipitation method. ZnO nanoparticles with a size of approximately 30 nm were well dispersed on the biochar matrix. The bandgap energy decreases from 3.11 to 3.08 eV as the Fe-ion concentration increases from 1 to 7 mol%. Photocatalytic studies demonstrated that FZBC exhibited photodegradation toward acid orange 7 (AO7). FZBC exhibited a photodegradation efficiency of AO7 at a concentration of 10 mg. L-1 (93.17%), which was nine times greater than that of pure ZnO (10.30%). Furthermore, the FZBC materials also demonstrated effective inactivation of E. coli, with an antibacterial rate reaching 98%. Overall, these materials are expected to be cost-effective and suitable for photocatalytic degradation and antibacterial activities.

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A facile synthesis of visible light driven Ni3V2O8 nano-cube/BiVO4 nanorod composite photocatalyst with enhanced photocatalytic activity towards degradation of acid orange 7

Cited by 17 publications

References 34 publications

Highly Effective Photocatalytic Performance in Visible Light of Sodium hexametaphosphate Capped Ni-Doped ZnO Nanoparticles

Highly Effective Photocatalytic Performance in Visible Light of Sodium hexametaphosphate Capped Ni-Doped ZnO Nanoparticles

A Novel Z-Scheme Ni3V2O8/AgI Visible Light Photocatalyst with Enhanced Photocatalytic Activity

Synthesis of Fe-doped ZnO/biochar nanocomposites for acid orange 7 photodegradation and antibacterial activity under visible light region

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