Bismuth Basic Nitrate as a Novel Adsorbent for Azo Dye Removal | Zendy

Eshraq Ahmed Abdullah | Zendy; Abdul Halim Abdullah | Zendy; Zulkarnain Zainal | Zendy; Mohd Zobir Hussein | Zendy; Kar Ban Tan | Zendy

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Bismuth Basic Nitrate as a Novel Adsorbent for Azo Dye Removal

Author(s) -

Eshraq Ahmed Abdullah,

Abdul Halim Abdullah,

Zulkarnain Zainal,

Mohd Zobir Hussein,

Kar Ban Tan

Publication year - 2011

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2012/617050

Subject(s) - sorbent , chemistry , bismuth , aqueous solution , point of zero charge , adsorption , methyl orange , inorganic chemistry , organic chemistry , photocatalysis , catalysis

Bismuth basic nitrate (BBN) and its TiO2-Ag modified sorbent, PTBA were successfully synthesized via a precipitation method. The structural characteristics of prepared sorbents were determined through different analytical techniques. The potential use of prepared sorbents for organic compounds' removal was evaluated using Methyl Orange and Sunset Yellow dyes as model pollutants in aqueous solutions. The experimental results showed that the presence of TiO2 and Ag particles during the crystal growth of bismuth basic nitrate has an effect on the crystal structure, point of zero charge (pHpzc), pore volume and diameter. The lower binding energy of Ti 2p core level peak indicates the octahedral coordination of TiO2 particles on the PTBA surface. The alteration of hydrophilic-hydrophobic characteristics of sorbent's surface improves the adsorptive performance of the modified sorbent and provides an efficient route for organic contaminants' removal from aqueous solutions

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