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G-C3N4/Ca2Fe2O5 heterostructures for enhanced photocatalytic degradation of organic effluents under sunlight.

ABSTRACT: g-C3N4/Ca2Fe2O5 heterostructures were successfully prepared by incorporating g-C3N4 into Ca2Fe2O5 (CFO). As prepared g-C3N4/CFO heterostructures were initially utilized to photodegrade organic effluent Methylene blue (MB) for optimization of photodegradation performance. 50% g-C3N4 content in CFO composition showed an enhanced photodegradation efficiency (~ 96%) over g-C3N4 (48.15%) and CFO (81.9%) due to mitigation of recombination of photogenerated charge carriers by Type-II heterojunction. The optimized composition of heterostructure was further tested for degradation of Bisphenol-A (BPA) under direct sunlight, exhibiting enhanced photodegradation efficiency of about 63.1% over g-C3N4 (17%) and CFO (45.1%). The photoelectrochemical studies at various potentials with and without light illumination showed significant improvement in photocurrent response for g-C3N4/Ca2Fe2O5 heterostructures (~ 1.9 mA) over CFO (~ 67.4 μA). These studies revealed efficient solar energy harvesting ability of g-C3N4/Ca2Fe2O5 heterostructures to be utilized for organic effluent treatment.

SUBMITTER: Vavilapalli DS 

PROVIDER: S-EPMC8490349 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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g-C<sub>3</sub>N<sub>4</sub>/Ca<sub>2</sub>Fe<sub>2</sub>O<sub>5</sub> heterostructures for enhanced photocatalytic degradation of organic effluents under sunlight.

Vavilapalli Durga Sankar DS   Peri Raja Gopal RG   Sharma R K RK   Goutam U K UK   Muthuraaman B B   Ramachandra Rao M S MS   Singh Shubra S  

Scientific reports 20211004 1

g-C<sub>3</sub>N<sub>4</sub>/Ca<sub>2</sub>Fe<sub>2</sub>O<sub>5</sub> heterostructures were successfully prepared by incorporating g-C<sub>3</sub>N<sub>4</sub> into Ca<sub>2</sub>Fe<sub>2</sub>O<sub>5</sub> (CFO). As prepared g-C<sub>3</sub>N<sub>4</sub>/CFO heterostructures were initially utilized to photodegrade organic effluent Methylene blue (MB) for optimization of photodegradation performance. 50% g-C<sub>3</sub>N<sub>4</sub> content in CFO composition showed an enhanced photodegradation  ...[more]

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