Ultrasonication assisted and surfactant mediated synergistic approach for synthesis of calcium sulfate nano-dendrites

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• 作者：Sarang Bari ; Aniruddha Chatterjee ; ^{aniruddha_chatterjee2006@yahoo.co.in" class="auth_mail" title="E-mail the corresponding author} ; Satyendra Mishra ; ^{profsm@rediffmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：CaSO4 ; Cavitation ; Nano-dendrite ; Surfactant
• 刊名：Ultrasonics Sonochemistry
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：31
• 期：Complete
• 页码：39-50
• 全文大小：3248 K

文摘

Calcium sulfate (CaSO₄) nano-dendrimers were fabricated successfully via ultrasonic irradiation method using calcium chloride [CaCl₂] and ammonium per sulfate [(NH₄)₂SO₄] as precursors in aqueous solution by using cetyl trimethyl ammonium bromide (CTAB) as chemical surfactants. Diffusion-induced branching growth mechanism (DIBGM), influenced with the action of head-group and hydrocarbon chain effect of cationic surfactants, was the backbone in the formation of CaSO₄ nano-dendrites. Fourier Transform Infra-red Spectroscopy (FTIR), X-Ray powder Diffraction (XRD), Atomic Emission Spectroscopy (AES), Selected Area Electron Diffraction (SAED), Field-Emission Scanning Electron Microscopy (FE-SEM), Energy-Dispersive Spectroscopy (EDS), Dynamic Light Spectroscopy (DLS) and BET surface area analyzer were used to characterize the products. Results obtained were compared with conventional stirring method that proved the superiority of sonication method to obtain well-crystalline nanostructures. Also, surfactant concentration, sonication frequency and time were noticed as the critical factors to generate such absolute morphologies at nano-crystalline size.