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Hydrothermal synthesis of Cr-doped SrTiO3 nanoparticles for rhodamine-B dye degradation under visible light illumination


Highly crystalline Cr-doped SrTiO3 nanoparticles were effectively synthesized with strontium acetate, titanium isopropoxide, and chromium nitrate as precursors via citric acid-assisted hydrothermal process followed by calcinations. The synthesized Cr-SrTiO3 NPs possess monodispersity with average particle size diameter 50 ± 5 nm, leading to agglomeration of NPs which might create grain boundaries and oxygen vacancies in the crystal. Doping of Cr into SrTiO3 lattice tailored the electronic structure which extended its absorption into the visible region. The photocatalytic activity was successfully explored to demonstrate the facile degradation of rhodamine-B (RhB) dye under visible light illumination. The result shows the excellent degradation (~77%) of RhB dye in short time span of 120 min and degradation followed the first-order reaction kinetics with rate constant k = 0.0103 min−1 .

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  1. Hoffman MR, Martin ST, Choi W, Bahnemann DW (1995) Chem Rev 95:69–96

    Article  Google Scholar 

  2. Chen SHS, Wu TY, Juan JC, Teh CY (2011) J Chem Technol Biotechnol 86:1130–1158

    Article  Google Scholar 

  3. McCann J, Ames BN (1976) Proc Natl Acad Sci U S A 73:950–954

    Article  CAS  Google Scholar 

  4. Ameen S, Akhtar MS, Kim YS, Shin HS (2011) Appl Catal B Environ 103:136–142

    Article  CAS  Google Scholar 

  5. Legrini O, Oliveros E, Braun AM (1993) Chem Rev 93:671–698

    Article  CAS  Google Scholar 

  6. Herrmann JM (1999) Catal Today 53:115–129

    Article  CAS  Google Scholar 

  7. Rahman QI, Ahmad M, Misra SK, Lohani M (2012) JNanosciNanotechnol 12:7181–7186

    CAS  Google Scholar 

  8. Umar A, Akhtar MS, Al-Hajry A, Al-Assiri MS, Almehbad NY (2012) Mater Res Bull 47:2407–2414

    Article  CAS  Google Scholar 

  9. Burnside S, Moser JE, Brooks K, Gratzel M (1999) J Phys Chem B 43:9328–9332

    Article  Google Scholar 

  10. Wang D, Ye J, Kako T, Kimura T (2006) J Phys Chem B 110:15824–15830

    Article  CAS  Google Scholar 

  11. Domen K, Kudo A, Onishi T, Kosugi N, Kuroda H (1986) J.Phys.Chem. 90:292–295

    Article  CAS  Google Scholar 

  12. Miyauchi M, Takashio M, Tobimatsu H (2004) Langmuir 20:232–236

    Article  CAS  Google Scholar 

  13. Wang J, Yin S, Komatsu M, Sato T (2005) JEuropCeramSoc 25:3207–3212

    CAS  Google Scholar 

  14. Straumal BB, Protasova SG, Mazilkin AA, Myatiev AA, Straumal PB, Schutz G (2010) J Appl Phys 108:073923–073926

    Article  Google Scholar 

  15. Mo SD, Ching WY, Chisholm MF, Duscher G (1999) Phys Rev B 60:2416–2424

    Article  CAS  Google Scholar 

  16. Serpone N, Lawless D, Disdier J, Herrmann JM (1994) Langmuir 10:643–652

    Article  CAS  Google Scholar 

  17. Liu JW, Chen G, Li ZH, Zhang ZG (2006) JSolid State Chem 179:3704–3708

    Article  CAS  Google Scholar 

  18. Tanner RE, Liang Y, Altman EI (2002) SurfSci 506:251–271

    CAS  Google Scholar 

  19. Hii T, Kato T, Kudo AJ (2004) PhotochemPhotobiolA 163:181–185

    Google Scholar 

  20. Rahman QI, Ahmad M, Misra SK, Lohani M (2013) Mater Lett 91:170–174

    Article  CAS  Google Scholar 

  21. Gaya UI, Abdullah AM (2008) J Photochem Photobiol C: Photochem Rev 9:1–12

    Article  CAS  Google Scholar 

  22. Choi W, Termin A, Hoffman MR (1994) J Phys Chem B 98:13669–13679

    Article  Google Scholar 

  23. Serpone N, Lawless D, Khairutdinov R (1995) JPhysChem 99:16646–16654

    CAS  Google Scholar 

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We are expressing our sincere thanks to Prof. K.M. Rafi, Director of JETGI, Barabanki, India, for his kind support and encouragement towards our research work. Authors would like to acknowledge the support of UGC start-up grant, New Delhi, India, for this research.

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Correspondence to Qazi Inamur Rahman.

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Rahman, Q.I., Ahmad, M. & Mehta, S.K. Hydrothermal synthesis of Cr-doped SrTiO3 nanoparticles for rhodamine-B dye degradation under visible light illumination. Colloid Polym Sci 295, 933–937 (2017).

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