Titania/reduced graphene oxide composite nanofibers for the direct extraction of photosynthetic electrons from microalgae for biophotovoltaic cell applications

Senthilkumar, N.; Sheet, Sunirmal; Sathishkumar, Yesupatham; Lee, Yang Soo; Phang, Siew‐Moi; Periasamy, Vengadesh; kumar, G. Gnana

doi:10.1007/s00339-018-2159-3

Cited by 26 publications

(9 citation statements)

References 42 publications

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“…Another emission peak centered in the visible region of 480 nm indicates the presence of oxygen vacancies on the TiO 2 surface. For the plasmonic hybrid nanostructures, the resultant emission peaks are significantly quenched, which is a direct indication of the reduction of the photon-induced electron-hole pair recombination rate that facilitates electron transfer at the TiO 2 /rGO/Ag interface [ 50 , 51 ]. The function group of GO and prepared materials were analyzed by FTIR spectrum [ 52 , 53 ] ( Figure S6 ).…”

Section: Resultsmentioning

confidence: 99%

Plasmon Effect of Ag Nanoparticles on TiO2/rGO Nanostructures for Enhanced Energy Harvesting and Environmental Remediation

et al. 2022

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We report Ag nanoparticles infused with mesosphere TiO2/reduced graphene oxide (rGO) nanosheet (TiO2/rGO/Ag) hybrid nanostructures have been successfully fabricated using a series of solution process synthesis routes and an in-situ growth method. The prepared hybrid nanostructure is utilized for the fabrication of photovoltaic cells and the photocatalytic degradation of pollutants. The photovoltaic characteristics of a dye-sensitized solar cell (DSSC) device with plasmonic hybrid nanostructure (TiO2/rGO/Ag) photoanode achieved a highest short-circuit current density (JSC) of 16.05 mA/cm2, an open circuit voltage (VOC) of 0.74 V and a fill factor (FF) of 62.5%. The fabricated plasmonic DSSC device exhibited a maximum power conversion efficiency (PCE) of 7.27%, which is almost 1.7 times higher than the TiO2-based DSSC (4.10%). For the photocatalytic degradation of pollutants, the prepared TiO2/rGO/Ag photocatalyst exhibited superior photodegradation of methylene blue (MB) dye molecules at around 93% and the mineralization of total organic compounds (TOC) by 80% in aqueous solution after 160 min under continuous irradiation with natural sunlight. Moreover, the enhanced performance of the DSSC device and the MB dye degradation exhibited by the hybrid nanostructures are more associated with their high surface area. Therefore, the proposed plasmonic hybrid nanostructure system is a further development for photovoltaics and environmental remediation applications.

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Section: Resultsmentioning

confidence: 99%

Plasmon Effect of Ag Nanoparticles on TiO2/rGO Nanostructures for Enhanced Energy Harvesting and Environmental Remediation

et al. 2022

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“…15 Furthermore, the photocurrents we report are only an order of magnitude lower than isolated PSII without an articial mediator on 3D inverse-opal structured GO electrodes. 16 Graphene-based electrode studies that used whole photosynthetic microorganisms (green alga Chlorella vulgaris 17,19,20 or a different cyanobacterium Synechococcus elongatus 21 ) used twoelectrode BPV set-ups (Table S2…”

Section: Establishing Photocurrent From Photosynthesismentioning

confidence: 99%

Graphene and graphene–cellulose nanocrystal composite films for sustainable anodes in biophotovoltaic devices

Lund,

Wey,

Peltonen

et al. 2024

Sustainable Energy Fuels

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“…Literatürde Senthilkumar, ve ark. [32] tarafından yapılmış bir çalışmada, TiO2/rGO elektrot kombinasyonu kullanılmış ve Chlorella vulgaris türü ile 34,66 ± 1,3 mW/m 2 'lik bir güç yoğunluğu elde edilmiştir. Diğer bir çalışmada, Karthikeyan, ve ark.…”

Section: şEkil 3 Bfvh'de Elde Edilen Voltaj (A) Ve Güç (B) Eğrisiunclassified

Chlorella vulgaris Mikroalgi Kullanılarak Biyofotovoltaik Hücrede Güç Yoğunluğunun Araştırılması

Bakir

Taşkan

2021

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

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Bu çalışmada laboratuvar ölçekli bir biyofotovoltaik hücre (BFVH) kullanılarak Chlorella vulgaris mikroalginin elektrik üretim kapasitesi araştırılmıştır. BFVH'de anot materyali olarak kalay oksit kaplı bakır mesh elektrot, katot materyali olarak ise platin kaplı titanyum mesh elektrot kullanılmıştır. BFVH'de üretilen maksimum güç yoğunluğu 142,28 mW/m 2 olarak elde edilmiştir. Nyquist analizi sonucunda anot biyofilm direncinin 0,74 Ω olduğu belirlenmiştir. BFVH'nin işletme süresi sonunda anot elektrotu yüzeyinden alınan SEM görüntülerinde yoğun bir biyofilm yapısının mevcut olduğu tespit edilmiştir. Elde edilen sonuçlar, BFVH'nin elektrik üretim performansının literatür değerleri ile kıyaslanabilir düzeyde olduğunu göstermiştir.

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Titania/reduced graphene oxide composite nanofibers for the direct extraction of photosynthetic electrons from microalgae for biophotovoltaic cell applications

Cited by 26 publications

References 42 publications

Plasmon Effect of Ag Nanoparticles on TiO2/rGO Nanostructures for Enhanced Energy Harvesting and Environmental Remediation

Plasmon Effect of Ag Nanoparticles on TiO2/rGO Nanostructures for Enhanced Energy Harvesting and Environmental Remediation

Graphene and graphene–cellulose nanocrystal composite films for sustainable anodes in biophotovoltaic devices

Chlorella vulgaris Mikroalgi Kullanılarak Biyofotovoltaik Hücrede Güç Yoğunluğunun Araştırılması

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