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<p>Dyes and pigments containing waters are toxic. Conventional methods for treating them are not adequate. Better processes are required performing satisfactorily and consuming less land space and electricity. Catalytic degradation is one such alternate. Here zeolite supported various catalyst were tested to degrade dyes. Pd, Ag, and Cu showed a promise and Cu in particular exhibited a potential for degrading methylene blue. Effects of various operating parameters for these catalysts on extents of dye degradation were studied. Catalysts were characterised by ICP-AES, SEM and XPS. H<sub>2</sub>O<sub>2</sub> and air were used as oxidants. Synthetic effluents were catalytically treated in batch and continuous modes. Cu-zeolite Beta completely degraded methylene blue with a contact time of 10&#xa0;min in presence of just air at 50 ºC in a continuous operation. Results of this work should serve as basis to switch over to catalytic degradation of organic effluents saving on land footprint and energy.</p>

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Reduced Footprint and Energy Consumption for Zeolite Catalysts-assisted Decomposition of Dyes in Effluent Waters

  • 期刊论文

  • 发表日期：

    2026年6月18日

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  • Srushti N. Barvaliya,
  • Parimal A. Parikh

摘要

Dyes and pigments containing waters are toxic. Conventional methods for treating them are not adequate. Better processes are required performing satisfactorily and consuming less land space and electricity. Catalytic degradation is one such alternate. Here zeolite supported various catalyst were tested to degrade dyes. Pd, Ag, and Cu showed a promise and Cu in particular exhibited a potential for degrading methylene blue. Effects of various operating parameters for these catalysts on extents of dye degradation were studied. Catalysts were characterised by ICP-AES, SEM and XPS. H2O2 and air were used as oxidants. Synthetic effluents were catalytically treated in batch and continuous modes. Cu-zeolite Beta completely degraded methylene blue with a contact time of 10 min in presence of just air at 50 ºC in a continuous operation. Results of this work should serve as basis to switch over to catalytic degradation of organic effluents saving on land footprint and energy.