Metal Impregnated Silica‐Carbon Materials from Rice Husk: A Versatile Sorbent for Toxic Organics and Inorganics in Water and Air |
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| Authors: | Sanhita Majumdar Pijush Kanti Mandal Sudip Kumar Das Rabindranath Majumdar |
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| Institution: | 1. Central Glass and Ceramic Research Institute, Kolkata, West Bengal, India;2. Department of Testing, Central Institute of Plastic Engineering and Technology, Bhubaneswar, Orissa, India;3. Department of Chemical Engineering, University of Calcutta, Kolkata, West Bengal, India;4. Department of Chemical Technology, University of Calcutta, Kolkata, West Bengal, India |
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| Abstract: | Carbon bearing materials derived from rice husk (RH) have long been recognized as sorbents for diverse chemicals – both organic and inorganic. This work presents an overview of studies demonstrating a single step process of carbonization of chemically pretreated RH to produce metal impregnated silica‐carbon char designated as silicarbon materials that can be utilized in sorbing out water‐borne organic and inorganic hazardous substances (such as phenol, hexavalent chromium, fluoride, and arsenic) and air‐borne volatile organic chemicals (such as acetone, chloroform, benzene, and pyridine). The metal‐impregnated silicarbon solids derived from RH appear to constitute renewable, low‐cost, user‐friendly, and efficient materials for control systems for indoor air contamination and for industrial as well as non‐industrial hazardous aqueous pollution. |
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| Keywords: | Biomass Pollutant Rice husk char Sorption Volatile organic compound |
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