Seminar of progress report

Yesterday, started from 08.00 a.m., four doctoral students presented the progress of their research work relating with their dissertation. The seminar of the progress report is held periodically by the department to monitor the progress of work carried out by doctoral students. Srie Muljani presented her research on the preparation of silica-based materials from geothermal sludge. Geothermal sludge is solid waste of geothermal power plant. The solid waste was taken from the geothermal power plant located in Dieng plateau, Central Java. The silica content in geothermal sludge is approximately 85% that make it a viable raw material for advanced silica-based materials.

Nanik Astuti Rahman presented her work on the preparation of amine-grafted silica gel from bagasse ash for CO2 removal. Bagasse ash is solid waste of sugar cane mills. There are many sugar cane mills in East Java, Indonesia. Most of the sugar cane mills use bagasse, a cellulose fiber remaining after extracting the cane juice, as fuel for boilers to generate steam during sugar processing. Bagasse ash is rich in silica (>51%) and can be a viable raw material for advanced silica-based materials. In addition, silica surface is rich in silanol group that make it possible to graft other functional group for specific purpose such as CO2 removal.

Adrian Nur presented his research work on the synthesis of nanosized hydrozyapatite (HA) by electrochemical method. HA is phosphate mineral encountered in bone and dental that make it biocompatible for use as bioimplant. There were two possible phase of phosphate formed using this method: HA and brushite. The initial phase after beginning the electrolysis was brushite and after that, it converted into HA. Aging the suspension after electrolysis also could convert brushite into HA.

Nazriati presented her work on the effect of Ni doping on the properties of silica aerogel produced from bagasse ash by ambient pressure drying. The presence of Ni seems to decrease the surface area of the silica aerogel. The Ni-doped silica aerogel will be tested for their capability to adsorb hydrogen. Previous studies showed that doping of Ni on MCM-41 enhanced the capacity of hydrogen storage.

Three master students presented their report the day before. They were Ni Made Intan Putri Suari, Vania Mitha Pratiwi and Zarra Miantina Putrie. Intan presented her work on electrodeposition of nanosized silica on steel for corrosion protection, Mitha on the electrochemical performance of Fe3O4/C composite as anode material for rechargable batteries and Zarra on sulfonate-grafted silica/chitosan membrane for proton exchange membrane.

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Rizka, Ina, Tigor, Winny, Kiki, Eka, Supri, Sabrina, Andar, Wangling, Irul, Ima, Sri, Fanny, Dwi, Merry

Two weeks before, our bachelor students presented their poster paper. The topics are as the following:

  1. Wangling – Rizka: Fe3O4/C composite as anode material for rechargable batteries
  2. Ina -Tigor: Synthesis of MnO2 by electrolysis of KMnO4
  3. Andar – Supri: Silica/C composite from geothermal sludge
  4. Irul – Fanny: Electrophoretic deposition of Hydroxyapatite/SiO2 on titanium for dental implant
  5. Yuni – Merry: Preparation of sulfonate-grafted silica from sodium silicate as an acid catalyst
  6. Ima – Dwi: Grafting of amine on silica produced from bagasse ash for CO2 adsorbent
  7. Winny – Kiki: Thermal insulator from silica gel prepared by electrodeposition of silica sol from sodium silicate
  8. Shabrina – Eka: Hydrophobic coating of Cu by electrophoretic deposition of nanosilica for corrosion protection

Seminar of progress report

Today, started from 1.00 p.m., two doctoral students presented the progress of their research work relating with their dissertation. The seminar is held periodically by the department to monitor the prpogress of work carried by doctoral students. Srie Muljani presented her research on the preparation of silica-based materials from geothermal sludge. Geothermal sludge is solid waste of geothermal power plant. The solid waste was taken from the geothermal power plant located in Dieng plateau, Central Java. The silica content in geothermal sludge is approximately 85% that make it a viable raw material for advanced silica-based materials.

Nanik Astuti Rahman presented her work on preparation of amine-grafted silica gel from bagasse ash for CO2 removal. Bagasse ash is solid waste of sugar cane mills. There are many sugar cane mills in East Java, Indonesia. Most of the sugar cane mills use bagasse, a cellulose fiber remaining after extracting the cane juice, as fuel for boilers to generate steam during sugar processing. Bagasse ash is rich in silica (>51%) and can be a viable raw material for advanced silica-based materials. In addition, silica surface is rich in silanol group that make it possible to graft other functional group for specific purpose such as CO2 removal.

Lab Seminar 8 Dec 2012

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We have seminar periodically. In this seminar, students presents their works and then continued by discussion.

Saturday, 8 Dec 2012:

  1. Zarra Miantina Putrie – Preparation of sulfonate-grafted silica/chitosan membrane as proton exchange membrane
  2. Ni Made Intan Putri Suari – Electrophoretic deposition of nanosilica on steel surface by pulsed-direct current for corrosion protection
  3. Vania Mitha Pertiwi – Synthesis of MnO2 by electrochemical method as an anode material for lithium-ion battery

Four groups of B4 students also presented their preliminary plant design as parts of task to finish their study.

  1. Tigor, Ina, Rizka, Wangling – Preliminary design of sago starch plant
  2. Andar, Supri, Yuni, Merry – Preliminary design of adiponitrile plant
  3. Winny, Kiki, Fanny, Irul – Preliminary design of MgO plant
  4. Sabrina, Eka, Ima, Dwi – Preliminary design of Phtalic anhydride plant

Presenting papers on RSCE 2012

Zarra Miantina Putrie and Ni Made Intan Putri Suari, both are master students, presented their research work on Regional Symposium on Chemical Enegineering (RSCE 2012). RSCE is an important annual forum for academicians, researchers and professionals from both public and private organizations in the South East Asia and the Asia-Pacific regions. This year, the symposium was held at Bali, Indonesia, from 7-8 November 2012 that was organized by the Department of Chemical Engineering, Sepuluh Nopember Institute of Technology, Surabaya, Indonesia.

Zarra presented a paper entitled: “Synthesis of Proton Exchange Membrane from SO3H-Grafted Silica Membrane in Production of Electrolized Oxidized Water (EOW)” and Intan was “Coating Steel With Nanosilica By Electrophoresis For Corrosion Protection.”

More information about this symposium can be obtained at http://rsce2012.its.ac.id/

Lab Seminar 20 October 2012

We have seminar periodically. In this seminar, students presents their works and then continued by discussion.

Saturday, 20 October 2012:

  1. Zarra Miantina Putrie – Sulfonated-silica/chitosan composite membrane as proton-exchange membrane (PEM)
  2. Yudistira/Yehuda – Synthesis of Fe3O4/C composite as an anode material for lithium-ion battery

Four groups of B4 students also presented their preliminary plant design as parts of task to finish their study.

  1. Tigor, Ina, Rizka, Wangling – Preliminary design of sago starch plant
  2. Andar, Supri, Yuni, Merry – Preliminary design of adiponitrile plant
  3. Winny, Kiki, Fanny, Irul – Preliminary design of MgO plant
  4. Sabrina, Eka, Ima, Dwi – Preliminary design of Phtalic anhydride plant

Presenting paper on IRWNS 2012

Rizka Zulhijah (Master student) presented a paper on “Industrial Research Workshop and National Seminars (IRWNS) 2012 held by Bandung Polytechnic in 11 July 2012 in Bandung. She presented a paper entitled: “Formation of layer on steel by electrolysis-hydrothermal for corrosion protection.”

Final Presentation of Bachelor Students

Our bachelor students (20 students) have successfully defended their research works (skripsi) held on 4 (wed) – 10 (tues) July 2012 at the Department of Chemical Engineering ITS. They have worked hard during the last two weeks to prepare the presentation, including writing thesis, preparing powerpoint presentation, practicing the presentation, etc. Some of the students unofficially got job and some got scholarship to continue their study for master (NCKU Taiwan, France and ITB). Congratulations and good luck!

Wednesday, 4 July 2012
  1. Zarra Miantina Putrie/Rizki Pratama – Preparation of sulphonate-grafted silica membrane as proton exchange membrane
Thursday, 5 July 2012
  1. Ahmad Royani/Febryan Harmansyah – Synthesis of amine-grafted silica gel from bagasse ash by an in situ method
  2. Khoirul Dwi S./Yulia Azatil Ismah – Anodization of steel in basic solution for corrosion protection
  3. Laksmi Dewi/Yetty Sulastri – Synthesis of silica gel from geothermal sludge
Monday, 9 July 2012
  1. Reyhan Syaiful/Junita Magdalena – Synthesis of Ni-doped silica aerogel from bagasse ash prepared by ambient pressure drying method for hydrogen storage
  2. Desy Nurwijayanti/Desi Liah Marthasari – Synthesis of hidroxyapatite particles by electrochemical method using constant direct current
  3. Dany Pratama Putra/Meritia Ardyati – Sulfur coating on urea by spouted bed for slow-release fertilizer
Tuesday, 10 July 2012
  1. Nur Hamidah/Meta Fitri Rizkiana – Hydrophobic glass coated by alkyl-modified silica
  2. Noor Izzati Ilmi/Alifah Rahmawati – Synthesis of hydroxyapatite particles by electrochemical method using pulse-direct current
  3. Rian Intan/Ririn Kurniasari – Electrophoretic deposition of nanosilica on steel surface for corrosion protection.