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Effects of aging and temperature parameters, polyethylene Glycol (PEG)/Al ratios on the structure directing mechanism of γ-alumina nanofiber-based Indonesian natural kaolin by ultrasonic aging process
Maryani E.a,b, Subagjob, Nuruddin A.b, Septawendar R.a,b, Purwasasmita B.S.b
a Center for Ceramics, Ministry of Industry of Indonesia, Bandung, 40272, Indonesia
b Engineering Physics Department, Bandung Institute of Technology, Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2015, The Australian Ceramic Society.Gamma alumina nanofiber was successfully synthesized from Indonesian natural kaolin by a structure-directing method using polyethylene glycol (PEG) as the fibrillar structure agent through ultrasonic aging process. The method was affected by the PEG composition and the synthesis conditions such as temperature and aging parameters. The morphology of the synthesized γ-alumina was characterized by a scanning electron microscope (SEM). The optimum conditions in γ-alumina nanofiber synthesis were obtained at a PEG/Al ratio of 0.133, at pH 9, and at a temperature of 80 °C for 2 hours. The produced γ-alumina nanofiber exhibited an average diameter in the range of 25-40 nm with several micrometers in length, a surface area of 323.7 m2/g, a total pore volume of 1.92 cm3/g, and an average pore diameter of 23.7 nm.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Aging parameter,Aging process,Alumina nanofibers,Fibrillar structures,Optimum conditions,Structure-directing method,Synthesis conditions,Temperature parameters[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]As temperature and aging parameters,Natural kaolin,Polyethylene glycol (PEG),Structure directing mechanism,Ultrasonic aging process,γ-Alumina nanofiber[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]