Recyclable Materials as Catalysts for Nonbiodegradable Organics in Water Treatment

  • S. B. JonnalagaddaEmail author
  • Suresh Maddila
  • Venkata D. B. C. Dasireddy
Conference paper


Scope of bimetallic and mixed oxide nanomaterials as recyclable catalysts and photocatalysts will be described for treatment of nonbiodegradable toxic organics and herbicides in water systems with special attention to the catalytic degradation of chloromethylphenol (CMP) in water facilitated by ozone using hydrotalcites Zn or Mg/VCO3 and Zn or Mg/VPO4 and wide choice of materials as heterogeneous catalysts. The catalyzed ozonation markedly accelerated the degradation of CMP. Catalyst materials were synthesized with a molar ratio of 1:0.8:0.2 and characterized using various surface characterization techniques. The influence of pH and ozone molar ratios on the percentage conversion and selectivity toward products was investigated. The reaction products were characterized by 1H NMR and LC-MS mass spectral data. Hydroxyl-3-methylfumaric acid (HMFA) and oxalic acid (OA) were the main oxidation products. Calcined catalysts gave better conversions than uncalcined. While Zn or Mg/VPO4 catalysts were efficient under acidic pH, Zn or Mg/VCO3 showed enhanced activity under alkaline conditions. In a specific case, calcined ZnVPO4 proved to be the best catalyst with 100percentage conversion, 100% dechlorination, and 30% mineralization achieved in 90 min ozone aeration time.


Chloromethylphenol Hydroxyl-3-methylfumaric acid Oxalic acid Ozonation Hydrotalicites 


  1. 1.
    Chao T, Guibin J (2005) Chemosphere 59:321–326CrossRefGoogle Scholar
  2. 2.
    Esplugas S, Gimenez J, Contreras S, Pascual E, Rodriguez M (2002) Water Res 36(4):1034–1042CrossRefGoogle Scholar
  3. 3.
    Chetty EC, Maddila S, Southway C, Jonnalagadda SB (2012) Ind Eng Chem Res 51:2864–2873CrossRefGoogle Scholar
  4. 4.
    Li P, He C, Cheng J, Ma ChY, Dou BJ, Hao ZP (2011) Appl Catal B 101:570–579CrossRefGoogle Scholar
  5. 5.
    Maddila S, Dasireddy VDBC, Oseghe EO, Jonnalagadda SB (2013) Appl Cat B 142:129–141CrossRefGoogle Scholar
  6. 6.
    Ernst M, Lurot F, Schrotter JC (2004) Appl Catal B Environ. 47:15–25CrossRefGoogle Scholar
  7. 7.
    Wang Q, Tay HH, Guo Z, Chen L, Liu Y, Chang J, Zhong Z, Luo J, Borgna A (2012) Appl Clay Sci 55:18–26CrossRefGoogle Scholar
  8. 8.
    Ndabankulu NO, Maddila S, Jonnalagadda SB (2016) Glob NEST J 18(2):242–250CrossRefGoogle Scholar
  9. 9.
    Wang H, Wang JL (2007) Appl Catal B Environ 77(1–2):58–65CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • S. B. Jonnalagadda
    • 1
    Email author
  • Suresh Maddila
    • 1
  • Venkata D. B. C. Dasireddy
    • 1
  1. 1.School of Chemistry and PhysicsUniversity of KwaZulu-NatalDurbanSouth Africa

Personalised recommendations