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Green-engineered synthesis of Bi2Zr2O7 NPs: excellent performance on electrochemical sensor and sunlight-driven photocatalytic studies

  • Environmental Pollution Remediation by Green Nanomaterials
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Abstract

In this rapid growing eco-friendly research world, synthesis of non-toxic, highly effective photocatalyst for potential applications is necessary. Herein, a strong ability Bi2Zr2O7 nanoparticle (BZO NP) with pyrochlore structure was fabricated by solution combustion synthesis using green (Mentha spicata) and chemical (Glycine) fuels. The X-ray diffraction analysis confirms the formation of pure phase for synthesized BZO NP using pudina extract (BZOP NP) compared to BZO NP using Glycine fuel (BZOG NP). The lower energy band gap of synthesized BZOP NP was observed than BZOG NP and its values were found to be 2.26 and 2.49 eV measured by UV–visible absorbance spectral technique. The morphological analysis of pores and voids formation as examined by scanning electron microscopy (SEM) technique. The synthesized BZOP NP shows excellent photocatalytic activity for degradation of three different dyes under sunlight irradiation for about 150 min with 97.9% for Rose Bengal (RB) dye with lower charge transfer resistance (Rct) value. For the very first time, the synthesized NPs can be utilized as supercapacitor with good specific capacitance (SPCcv) value of 14.3 F/g and SPCGD (12.5 F/g) for BZOP compared to BZOG indicating pseudocapacitance nature. The synthesized nanoparticles (NPs) can sense lead nitrate and dextrose at concentration 1–5 mM in the potential range of − 1.0 to + 1.0 V. Accordingly, the reduction potential peak at − 0.25 V and oxidation potential peak found at − 0.82 V confirms the presence of lead content and presence of additional potential peaks at − 0.37 V and − 0.71 V for detection of dextrose biochemical. Recyclability experiment showed the retainment of photocatalytic activity up to five cycles indicating the photostability.

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Authors and Affiliations

  1. Dr. D. Premachandra Sagar Centre for Advanced Materials, Dayananda Sagar College of Engineering, Shavige Malleshwara Hills, Kumaraswamy Layout, Bengaluru, 560111, India

    Pompapathi Kurlla & Anantharaju Kurupalya Shivram

  2. Department of Material Science, Mangalore University, Mangalagangotri, Mangalore, 574199, Karnataka, India

    Pompapathi Kurlla

  3. Department of Chemistry, Dayananda Sagar College of Engineering, Shavige Malleshwara Hills, Kumaraswamy Layout, Bengaluru, 560111, India

    Anantharaju Kurupalya Shivram, Surendra Boppanahalli Siddegowda, Meena Subramaniam, Uma Bogegowda & Arpita Paul Chowdhury

  4. Department of Chemistry, M S Ramaiah Institute of Technology, M S Ramaiah Nagar, MSR Nagar, Bengaluru, Karnataka, 560054, India

    Nagaraju Kottam

  5. Department of Chemistry, BMS College of Engineering, Basavanagudi, Bengaluru, 560019, India

    Malini Subramanya

  6. Department of Chemistry, Saveetha School of Engineering, SIMATS, Chennai, 602105, India

    Renuka Lakshmi Narasimhan

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  1. Pompapathi Kurlla
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Contributions

Anantharaju Kurupalya Shivram and Surendra Boppanahalli Siddegowda supervised the research, designed, analyzed data, and wrote the paper. Nagaraju Kottam and Renuka Lakshmi Narasimhan analyzed data and co-wrote the paper. Pompapathi Kurlla performed experiments. Meena Subramaniam, Uma Bogegowda, Malini Subramanya, and Arpita Paul Chowdhury provided essential information regarding material applications.

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Correspondence to Anantharaju Kurupalya Shivram.

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Kurlla, P., Shivram, A.K., Kottam, N. et al. Green-engineered synthesis of Bi2Zr2O7 NPs: excellent performance on electrochemical sensor and sunlight-driven photocatalytic studies. Environ Sci Pollut Res (2023). https://doi.org/10.1007/s11356-022-24760-5

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