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Featured researches published by Saptadi Darmawan.


Jurnal Penelitian Hasil Hutan | 2015

KAJIAN STRUKTUR ARANG-PIROLISIS, ARANG-HIDRO DAN KARBON AKTIF DARI KAYU Acacia mangium Willd. MENGGUNAKAN DIFRAKSI SINAR-X

Saptadi Darmawan; Wasrin Syafii; Nyoman Wistara; Akhirudin Maddu; Gustan Pari

Kegunaan karbon aktif sangat luas dan penting untuk beragam aplikasi. Arang-hidro dari biomassa yang dibuat melalui proses karbonisasi hidrotermal merupakan prekursor alternatif terhadap prekursor konvensional untuk pembuatan karbon aktif yang selama ini banyak menggunakan arang dari proses pirolisis (prekursor konvensional). Tulisan ini menganalisa struktur kristalin arang-pirolisis dan arang-hidro suhu 200 ?C dan 300 ?C serta produk karbon aktif menggunakan difraksi sinar-X (XRD). Hasil penelitian menunjukkan bahwa indeks kematangan dan tingkat aromatisasi karbon dari prekursor (baik konvensional atau alternatif) meningkat setelah diaktivasi; jarak antar lapisan graphene (d002) semakin kecil, sementara itu derajat kristalinitas, jumlah, tinggi dan lebar lapisan aromatik semakin besar. Arang-hidro memiliki derajat kristalinitas, indeks kematangan dan tingkat aromatisasi lebih rendah dari arang pirolisis suhu 300?C dengan kandungan bahan mudah menguap lebih tinggi. Keduanya telah membentuk struktur karbon bersifat amorf. Karbon aktif dari arang-hidro suhu 300?C menghasilkan daya jerap iodin tertinggi. Analisis XRD terhadap arang-pirolisis dan arang-hidro suhu rendah dapat memprediksi porositas karbon aktif yang dihasilkan.


Jurnal Penelitian Hasil Hutan | 2010

SIFAT PAPAN SERAT MDF DENGAN PENAMBAHAN ARANG

Saptadi Darmawan; Gustan Pari; Adi Santoso

Charcoal with its porous structure enables it to adsorb pollutants in gaseous or liquid phase, although it does not perform as effectively as its corresponding active charcoal. Meanwhile, medium density fiberboard (MDF) has become one of the wood-based panels which develops rapidly. In relevant, this experiment dealt with charcoal addition during MDF type fiberboard manufacture bonded with urea formaldehyde adhesive and shaped under dry process, and the fiber materials for the MDF were the mixture of mangium and rubberwood TMP (Thermo-Mechanical Pulping) pulp at 3:1 proportion (w/w). Meanwhile, the fiber charcoal resulted from the carbonization of those mixed TMP pulp. Expectedly, the incorporation of charcoal could improve adsorption capacity of the resulting MDF. In this experiment, the amounts of charcoal as incorporated implied from the compositions of TMP fiber-charcoal mixture at consecutively 100:0 , 90:10, 80:20, and 70:30 based on oven dry weight. Observation was performed regarding MDF adsorption-capacities on benzene, chloroform, and formaldehyde


Procedia environmental sciences | 2014

Porous Carbon Spheres from Hydrothermal Carbonization and KOH Activation on Cassava and Tapioca Flour Raw Material

Gustan Pari; Saptadi Darmawan; Bambang Prihandoko


Bioresources | 2016

Characterization of Lignocellulosic Biomass as Raw Material for the Production of Porous Carbon-based Materials

Saptadi Darmawan; Nyoman Wistara; Gustan Pari; Akhirudin Maddu; Wasrin Syafii


Indonesian Journal of Forestry Research | 2010

EFFECT OF ACTIVATED CHARCOAL ADDITION ON FORMALDEHYDE EMISSION OF MEDIUM DENSITY FIBERBOARD

Saptadi Darmawan; Kurnia Sofyan; Gustan Pari; Krisdianto Sugiyanto


Jurnal Penelitian Hasil Hutan | 2000

PEMBUATAN BRIKET ARANG DARI SERBUK GERGAJIAN KAYU DENGAN PENAMBAHAN TEMPURUNG KELAPA

Djeni Hendra; Saptadi Darmawan


Jurnal Penelitian Hasil Hutan | 2007

SIFAT ARANG AKTIF DARI TEMPURUNG KEMIRI

Djeni Hendra; Saptadi Darmawan


Jurnal Penelitian Hasil Hutan | 2016

POTENSI STRUKTUR NANO KARBON DARI LIGNOSELLULOSA

Gustan Pari; Adi Santoso; Djeni Hendra; Buchari Buchari; Akhirudin Maddu; Mamat Rachmat; Muji Harsini; Teddi Heriyanto; Saptadi Darmawan


Jurnal Penelitian Hasil Hutan | 2016

KEMUNGKINAN PENGGUNAAN NANO KARBON DARI LIGNOSELULOSA SEBAGAI BIOSENSOR

Gustan Pari; Adi Santoso; Djeni Hendra; Buchari Buchari; Akhirudin Maddu; Mamat Rachmat; Muji Harsini; Bunga Ayu Safitri; Teddi Heriyanto; Saptadi Darmawan


Archive | 2013

KARAKTERISASI STRUKTUR NANO KARBON DARI LIGNOSELLULOSA (Characterization on the Structures of Ligno-cellulose Nano Carbon)

Gustan Pari; Adi Santoso; Mamat Rachmat; Muji Harsini; Teddi Heryanto; Saptadi Darmawan

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Akhirudin Maddu

Bogor Agricultural University

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Djeni Hendra

Bandung Institute of Technology

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Mamat Rachmat

Bogor Agricultural University

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Buchari Buchari

Bandung Institute of Technology

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Nyoman Wistara

Bogor Agricultural University

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Wasrin Syafii

Bogor Agricultural University

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Bambang Prihandoko

Indonesian Institute of Sciences

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