Browsing A - Mathematics and Natural Sciences by Author "Koesnarpadi, Soerja"
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abstract ICMSc 2021
Koesnarpadi, Soerja (FMIPA Unmul, 2021-10-12) -
EKSTRAKSI, PEMURNIAN DAN KARAKTERISASI ASAM HUMAT DARI TANAH GAMBUT SAMARINDA
Koesnarpadi, Soerja; Santosa, Sri Juari; Siswanta, Dwi; Rusdiarso, Bambang (Prosiding Seminar Nasional Kimia 2021, 2021)Telah dilakukan ekstraksi, pemurnian dan karakterisasi asam humat (AH) dari tanah gambut di daerah Sambutan, Samarinda Kalimantan Timur. Ekstraksi AH dari tanah gambut dilakukan menggunakan larutan basa NaOH 0,1 M sedangkan ... -
Magnetically separable humic acid-functionalized magnetite for reductive adsorption of tetrachloroaurate(III) ion in aqueous solution
Santosa, Sri Juari; Krisbiantoro, Philip Anggo; Yuniarti, Mustika; Kustomo; Koesnarpadi, Soerja (Elsevier, 2021-03-03) -
PREPARATION OF MAGNETITE-FULVIC ACID (Fe3O4-FA) FROM PEAT SOIL AND APPLICATION TO ADSORB RHODAMINE-B
Oktaviana, Deby Ayu; Koesnarpadi, Soerja; Widodo, Nanang Tri (Jurnal Kimia Mulawarman, 2021)This study, Fe3O4 adsorbent coated with fulvic acid (Fe3O4-AF) was prepared from peat soil and applied to adsorb rhodamine B dye. The optimum pH conditions of rhodamine-B adsorption on Fe3O4-AF. Fe3O4-AF adsorbent ... -
Study Of Antioxidant Effectiveness Of Meniran Leaf Hybrid (Phyllanthus niruri L.) with TiO2-Chitosan
Marliana, Eva; Koesnarpadi, Soerja; Nabila, Sahira Fara; Isyahro, Novia R (Mulawarman Press, 2021-10-06) -
Synthesis and characterization of Fe3O4-Activated Carbon and it's application to adsorb methylene blue
Dirgayanti, Devika S; Koesnarpadi, Soerja; Hindryawati, Noor (IOP Publishing, 2021)Synthesis and characterization of Fe3O4-Activated Carbon (Fe3O4-AC) and the application to adsorb methylene blue has been conducted. The Fe3O4-AC was synthesized using the co-precipitation method on alkaline conditions. ... -
Synthesis and Charactherization of Chitosan-Tripolyphosphate from Clam Shells (Cerithidea obtusa) and Its Application to Sorption of Cadmium Ion
Anuar, Hajar; Koesnarpadi, Soerja; Erwin (Proceding ICTROPS 4th-Mulawarman University Press, 2021)Synthesis and characterization of chitosan-tripolyphosphate (Chi-TPP) from Clam Shells (Cerithidea obtusa) and its application to sorption of cadmium ion has been researched. The Chi-TPP was synthesized using gelation methods ... -
SYNTHESIS OF CHITOSAN-MAGNETITE NANOPARTICLES CROSS-LINKED TRIPOLYPHOSPHATE AS ANTIBACTERIAL Salmonella typhi AND Staphylococcus aureus
Mahyati, Agus; Koesnarpadi, Soerja; Erwin (Jurnal Atomik, 2021)Magnetite is widely used in various fields of separation, biochemistry, medical and environment. Modification of nanoparticle magnetite binding with chitosan is recommended for many biomedical applications, especially ...