Novel Foam Adsorbents in Dyes and Heavy Metals Removal: A Review

Suresh Selvaraj1, S. Ravichandran2, S.R. Boselin Prabhu3,*, G.K. Prashanth4 and H.M. Sathyananda4

1Department of Chemistry, QIS College of Engineering and Technology, Ongole-523272, India

2Department of Chemistry, Lovely Professional University, Phagwara-144411, India

3Department of ECE, Surya Engineering College, Mettukadai-638107, India

4Department of Chemistry, Sir M. Visvesvaraya Institute of Technology (Affiliated to Visvesvaraya Technological University, Belagavi), Bengaluru-562157, India

*Corresponding author: E-mail: eben4uever@gmail.com

Abstract

The present review comprises various novel foam adsorbents with unique adsorption performance in process of removal of dyes and heavy metals. Water pollution because of toxic dyes and heavy metals and its ill-effect on the ecosystem is of great concern to researchers, as it affects the living creatures on the planet. Novel foam adsorbents from carbon foam, chitosan foam, metal foam and polymer foam were developed as efficient materials with good chelating ability to adsorb dyes and heavy metal ions. Novel carbon foam adsorbents were reported to have superior adsorption capacity in removal of dyes and heavy metals. This review aims to look at various novel foam adsorbents used in adsorption studies and their potential in dyes and heavy metals removal. This work provides a worthy challenge and the future possibility for designing novel foam materials for various applications.

Keywords

Novel foam adsorbents, Dyes, Heavy metals, Adsorption, Adsorption capacity.

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