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Synergistic Degradation of Dyes with Marine Bacteria Incubated in Graphene Oxide Matrix
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  • Neha Redkar,
  • MADHURIMA DEB,
  • Cathrine Manohar,
  • Ashok Shivaji Jagtap,
  • Sumit Saxena,
  • Shobha Shukla
Neha Redkar
Indian Institute of Technology Bombay

Corresponding Author:neha.redkar@iitb.ac.in

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MADHURIMA DEB
Indian Institute of Technology Bombay
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Cathrine Manohar
CSIR-National Institute of Oceanography
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Ashok Shivaji Jagtap
CSIR-National Institute of Technology, Goa
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Sumit Saxena
Indian Institute of Technology Bombay
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Shobha Shukla
Indian Institute of Technology Bombay
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Abstract

Graphene or graphene-based nanomaterials have emerged as novel scaffolds for developing robust bio-catalytic systems and a fast-developing promising contender for bioremediation. The interaction of bacteria and graphene is such an elusive issue that its implication in environmental biotechnology is unclear. The complexity and recalcitrant nature of the dyes make the conventional techniques inadequate and remain a challenge for industrial effluent treatment. Many scientists have developed hybrid processes and hybrid materials to enhance the treatment processes to satisfy increasingly stringent laws and criteria related to effluent discharge. The current study explicitly focuses on immobilization and growth of dye-degrading marine bacterial isolates on graphene oxide and their application in methylene blue dye degradation. The synergistic effects of adsorption and biodegradation achieved a unique clean-up performance that the counterpart-free bacteria could not fulfill. Further, toxicity analysis of intermediates also confirmed the non-toxic nature of the intermediates formed after synergistic treatment. This work has the potential to lead to zero effluent treatment processes.