Analisa Daya Serap Silika Gel Berbahan Dasar Abu SekamPadi

Fahmi, Hendriwan; Nurfalah, Abdul Latif

doi:10.22216/jit.2016.v10i3.425

Cited by 11 publications

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“…Nilai kerapatan sampel A sebesar 1,37 gram/cm 3 , sampel B sebesar 1,56 gram/cm 3 , dan sampel C sebesar 1,28 gram/cm 3 , penyebab anomali ini, diakibatkan oleh sifat silika berbentuk amorf yang memiliki tingkat kejenuhan untuk menyerap air pada saat proses pencetakan hingga perendaman sampel selama 28 hari. Silika abu sekam padi yang disintering pada suhu 700 0 C juga cenderung memiliki daya serap air yang lebih kecil, sehingga dengan penambahan abu sekam padi yang berlebihan akan mengakibatkan penyerapan lebih sedikit dan massa sampel juga lebih ringan [17] Sampel dengan penambahan abu sekam padi yang berlebihan juga dapat mengakibatkan sampel lebih mudah patah, karena pori-pori pada permukaan sampel lebih kecil dan menimbulkan daya serap air yang lebih sedikit. Sebaliknya sampel dengan tanpa penambahan abu sekam padi, akan mengakibatkan sulitnya terjadi proses pengikatan dan pengerasan, karena penyerapan air yang cenderung lebih banyak [18].…”

Section: Sifat Fisis Mortarunclassified

Pengaruh Penambahan Abu Sekam Padi Terhadap Sifat Fisis dan Mekanis pada Mortar

2020

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The research was carried out about the effect of adding rice husk ash to physical and mechanical properties of mortar. Mortar was moulded with three composition comparisons between ordinary portland cement, rice husk ash, and rice stalk fiber. Rice husk ash was burned at temperature of 700 OC for 2 hours, rice stalk fiber was mechanically sliced up to 0.8 mm in size, then mortar molding and maintenance was processed for 28 days. The mortars that had reached the age of 28 days were tested according to the Indonesia National Standard (SNI) including physical properties (water absorption, density), and mechanical properties (compressive strength, modulus of elasticity, modulus of rupture). Characterization of microstructure, morphology and counting all elements on the surface of mortar were processed by using Scanning Electron Microscopy - Energy Dispersive X-ray Spectroscopy (SEM-EDS). The results of research that had been carried out, mortar with the most optimum physical and mechanical properties was mortar B with a composition of 65%: 10%: 25%. The results of the characterization using SEM-EDS showed that the surface of mortar B was better with grain diameter (1.4 ± 0.9) µm and the most dominant element in the mortar was element of Ca and Si which functioned as mortar binder and hardener.

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Section: Sifat Fisis Mortarunclassified

Pengaruh Penambahan Abu Sekam Padi Terhadap Sifat Fisis dan Mekanis pada Mortar

2020

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“…SiO2(silika) merupakan bahan Mineral Penyusun Pasir Kuarsa/pasir Putih dimana silika yang terkandung dalam pasir Putih/kuarsa dapat di ekstraksi dan di identifikasi mengunakan metode flouresensi sinar-X (XRF) [8,9]. XRF merupakan alat yang digunakan untuk menganalisis komposisi kimia beserta konsentrasi secara kualitatif maupun kuantitatif dimana Analisis kualitatif dilakukan untuk menganalisi jenis unsur yang terkandung dalam bahan dan analisis kuantitatif dilakukan untuk menentukan konsentrasi dari unsur-unsur yang terkandung dalam sample dengan menggunakan metode spektrometri dan dikarakterisasi dengan menggunakan metode XRD [10][11][12][13]. XRD merupakan sebuah Teknik analisis yang selalu digunakan dalam hal mengidentifikasi kemunculan fase kristal di dalam materialmaterial sampel dan dalam bentuk bubuk.…”

Section: Pendahuluanunclassified

Ekstraksi dan Identifikasi Komponen Utama Pasir Putih dari Desa Marinsow Kabupaten Minahasa Utara dengan Pengujian XRF dan XRD

Langi¹,

Rampe

Tengker

2020

fuller. j. of chem.

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North Sulawesi is one of the regions in Indonesia which has a wealth of natural resources which is quite abundant, one of the natural potential that can be utilized is White sand. White sand has a composition that is SiO2, CaO, Fe2O3, TiO2, MgO. This study aims to identify the composition of the main components of white sand through XRF testing and the results of extraction of white sand from Marinsow village using the alkaline fusion method, NaOH solution for extracting and crystallizing the formation of silica crystals and tested using XRD testing to determine the crystal characteristics. Extraction and testing processes have been carried out using XRF and XRD on white sand samples taken in Marinsow Village, North Minahasa Regency. The results of the identification of the components of the white sand constituents through XRF testing namely CaO is the largest main component of the white sand compilers in the village of Marinsow which is as much as 89.97%. The content of SiO2 compounds in white sand (Marinsow) is as much as 1.41%. Other components found in white sand from Marinsow village, North Minahasa Regency include MgO as much as 5.85%, SrO as much as 2.31%, Fe2O3 as much as 0.277 %, TiO2 is 0.079%, Cr2O3 is 0.032%, Nb2O5 is 0.0238%, MoO3 is 0.0159%, SnO2 is 0.0082%, Sb2O3 is 0.0079% and RuO4 is 0.0074%. The results of XRD testing on white sand taken in the village of Marinsow give results that white sand has a calcite crystal structure (CaO) and for the SiO2 silica component is quartz.

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“…Massa optimum adsorpsi Ammonium dengan silika gel terdapat pada massa 0.25 g. Pada massa yang lebih tinggi dari 0.25 g akan menyebabkan adsorben mengalami penggumpalan (aglomerasi), yang mengakibatkan konsentrasi ammonium yang terserap semakin berkurang sehingga semakin banyak serbuk silika gel yang ditambahkan semakin sedikit ammonium yang terserap [22]. Hal ini berarti bahwa peningkatan jumlah adsorben akan menyebabkan terjadinya penurunan konsentrasi dari amonium yang teradsorpsi [23]. Penurunan dari konsentrasi amonium teradsorpsidisebabkan ammonium yang terserap oleh silika gel lebih besar dibandingkan konsentrasi ammonium yang tersisa dalam limbah [24].…”

Section: Gambar 1 Massa Optimum Adsorpsi Silikaunclassified

Penentuan Parameter Adsorpsi Silika Sintetik Dari Cangkang Kelapa Sawit Terhadap Kandungan Ammonium Pada Limbah Cair Tahu

Karimullah

Elvia

Amir

2018

atp

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[DETERMINATION OF SYNTHETIC SILICA ADSORPTION PARAMETERS OF OIL PALM SHELLS AGAINST THE CONTENT OF AMMONIUM ON LIQUID TOFU WASTE] This research aims to determine adsorption capacity of synthetic silica synthesized from Palm Oil (Elaeis guineensis Jacq) shells ashes against the content of Ammonium on tofu liquid waste . The shell sample soaked in a solution of HCl 10% for 2 hours, charred at a temperature of 300 °C for 3 hours ago ashed at 600 °C for 2 hours. Then ash soaked with HCl 1.2 M for 24 hours. Taken 120 g of ash shells and then mixed right while heated with 160 mL 4 M NaOH. The residue obtained is heated at a temperature of 5000 °C for 30 minutes, cooled to room temperature and retrieved the Na2SiO3 particle.The particle then dissolved into 200 ml aquademin and settled at 12 hours, filtered and filtratnya ditetesi with HCL 1 M while stirring, until the white gel is formed and settled in the next 24 hours, filtered, and dried at a temperature of 120 °C for 2 hours, an silica powder obtained as result. Ammonium Adsorption is done with mass variation 0125, 0.25, 0.5, 0.75, and 1 g silica as well as variations of the contact time of 15, 30, 60, 90, and 120 minutes. The results showed Ammonium adsorption at tofu liquid waste by silica synthesis from the Palm Oil shell ashes occurs with a maximum mass of 0.25 g and optimum contact time of 30 minutes with a capacity of adsorption of 2.581 mg/L and 3,154 mg/L as well as with adsorption efficiency at 61.9% and 76.8%.

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Analisa Daya Serap Silika Gel Berbahan Dasar Abu SekamPadi

Abstract: Rice husk ash Silica Gel is aproduct which call be used in preventing the humidity by absorbing the water ion on the water andonthe air. This absorbing isbased onthe size, the composition and the total amount ofpolluter which contained on the Silica Gel.

Cited by 11 publications

References 0 publications

Pengaruh Penambahan Abu Sekam Padi Terhadap Sifat Fisis dan Mekanis pada Mortar

Pengaruh Penambahan Abu Sekam Padi Terhadap Sifat Fisis dan Mekanis pada Mortar

Ekstraksi dan Identifikasi Komponen Utama Pasir Putih dari Desa Marinsow Kabupaten Minahasa Utara dengan Pengujian XRF dan XRD

Penentuan Parameter Adsorpsi Silika Sintetik Dari Cangkang Kelapa Sawit Terhadap Kandungan Ammonium Pada Limbah Cair Tahu

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