Synthesis of morphology-controlled bismutite for selective applicationsElectronic supplementary information (ESI) available: (S1-S9) The FT-IR spectra of nanoplatelets and nanodiscs, the adsorption profile, XRD, FESEM and FT-IR spectra of Bi2O2CO3 nanosheets before and after adsorption/photocatalytic processes, photographic images showing adsorption/photocatalytic processes for dye solutions. Tables (ST1-ST5) show unit cell parameters, calculated EVB, ECB from Eg values, RR(%), adsorption capaci

• Main Authors: Selvamani, Thangavel, Gnana Sundara Raj, Balasubramaniam, Anandan, Sambandam, Wu, Jerry J, Ashokkumar, Muthupandian
• Format: Journal Article
• Published: 09.03.2016
• ISSN: 1463-9076; 1463-9084
• DOI: 10.1039/c5cp07523h

Bismutite (Bi 2 O 2 CO 3 ) possessing diverse morphologies, namely nanosheets, nanodiscs and nanoplatelets, was synthesized by a simple controllable method using bismuth nitrate pentahydrate and urea as precursors in a water/ethylene glycol mixture. The as-synthesized samples showed unique physical and chemical properties, such as varying morphology, phase identification, chemical composition, surface area and surface potential. Bi 2 O 2 CO 3 nanosheets exhibited excellent adsorption capabilities for anionic dyes (acid orange 7 and methyl orange) and high photocatalytic performance for the decolorization of cationic dyes (rhodamine B and methylene blue) under simulated solar illumination. Furthermore, the electrochemical performance of Bi 2 O 2 CO 3 nanosheets showed good capacitance properties and hence could be a potential candidate for electrode materials in energy related applications. Bismutite (Bi 2 O 2 CO 3 ) possessing diverse morphologies, namely, nanosheets, nanodiscs and nanoplatelets, was synthesized by a simple controllable method shows excellent materials as adsorbents and photocatalysts for wastewater treatment with supercapacitor activities for energy applications.