Uji Aktivitas Fotokatalis Genteng Berglasir Silika/TiO2 terhadap Degradasi Larutan Indigo Carmine, Metanil Yellow dan Rhodamin

Sianita, Maranti Sianita; Darmawan, Adi; Azmiyawati, Choiril

doi:10.14710/jksa.20.2.53-57

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…TiO2 photocatalyst activity can be influenced by several factors, and the most important is the crystal form. TiO2 has 3 types of crystals, namely rutile, anastase and brukit, but only 2 have catalytic activity, namely anatase and rutile [8]. Humic acid is the main ingredient to be degraded using a catalyst activity test, the degradation process uses light which is used to speed up a reaction commonly called photodegradation.…”

Section: Catalyst Activity Testmentioning

confidence: 99%

Effect of UVC Based Photocatalyst on the Degradation of Humic Acid with Variations of pH and Variations of Concentration

Faadiyah,

Adnan,

Dewi

et al. 2023

Advances in Biological Sciences Research

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Humic acid is an organic compound that has changeable properties and is globally yellow and black in color. Humic substances act as substrates for the needs of the development of microorganisms and will give out unwanted yellow or brown colors (Adnan et al., 2022). Simply put, photocatalyst is a combination reaction between photochemistry and also a catalyst whose process with the help of a light or photo is used to speed up a chemical reaction (Chandra, 2012). The type of photocatalyst used is TiO 2 (Titanium Dioxide) which is varied with Fe 3 O 4 to determine the pH of the humic acid solution. TiO 2 (Titanium Dioxide) is one type of inorganic oxide. Semiconductor materials such as TiO2 are widely used as photocatalysts of organic substances with the help of UV light. Based on research conducted by Pradipta et al. ( 2021), TiO 2 catalyst can be combined with Fe 3 O 4 , as evidenced by the high degradation by Fe 3 O 4 /TiO 2 nanocomposites. In the catalyst activity test using 3 variations of pH, namely 3, 7 and 10 with a concentration of 15 ppm, there are differences in each solution. Experiments were carried out at the same time but at different pH. The photocatalyst activity test was continued with variations in concentration using pH 3 (acidic), research on variations in concentrations of 15 ppm, 20 ppm and 25 ppm. The three solutions were tested using UVC light with 1 g of TiO 2 added as a catalyst so that organic compounds could be degraded. The research used, the optimum result is pH 3 (acidic) the reason is because the percentage decrease from pH 3 and other pH is different. The optimum concentration result was 15 ppm with a pH of 3 (acidic). The lower the concentration in the solution, the pollutants contained in the solution are easier to degrade. A low solution concentration of ions at an acidic pH will increase the activity of the catalyst. The percentage of degradation from pH 3 (acid) concentration of 15 ppm is 92.7954%, which means it is bigger than other pH variations.

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Section: Catalyst Activity Testmentioning

confidence: 99%

Effect of UVC Based Photocatalyst on the Degradation of Humic Acid with Variations of pH and Variations of Concentration

Faadiyah,

Adnan,

Dewi

et al. 2023

Advances in Biological Sciences Research

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“…TiO 2 sebagai katalis dalam sistem reaksi fotokimia memiliki kemampuan untuk mengadsorbsi energi foton yang dapat memicu terjadinya pengaktivan katalis sehingga substansi radikal hidroksil dapat terbentuk dengan cepat. Radikal hidroksil memiliki peranan penting dalam mendegradasi polutan organik menjadi produk akhir yang ramah lingkungan [5]. TiO 2 yang memiliki sifat semikonduktor apabila dikenai cahaya berupa sinar UV (ultraviolet) dengan energi yang sesuai, maka elektron (e -) pada pita valensi akan berpindah ke pita konduksi dan meninggalkan lubang positif (hole, h + ) pada pita valensi.…”

Section: Pendahuluanunclassified

Studi Aktivitas Reaksi Fotokatalisis Berbasis Katalis TiO2-Karbon Aktif Terhadap Mutu Air Limbah Power Plant

et al. 2019

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Pengolahan air limbah merupakan proses mengolah air buangan yang sudah tidak terpakai untuk dapat dikembalikan ke siklus air di lingkungan. Unit Waste Water Treatment Plant (WWTP) PT. Indonesia Power digunakan untuk mengolah air limbah yang berasal dari berbagai sumber salah satunya yaitu HRSG Sump Pit. Buangan air limbah yang berasal dari HRSG Sump Pit memiliki kandungan fosfat dikarenakan adanya penambahan fosfat pada unit sebelumnya yang bertujuan sebagai inhibitor proses korosi. Karakteristik limbah cair dapat ditentukan dari beberapa parameter diantaranya nilai pH, optical density (OD), dan kadar fosfat. Pengolahan air limbah dilakukan agar limbah cair yang dihasilkan dapat memenuhi baku mutu yang dipersyaratkan sebelum dibuang ke lingkungan. Penelitian ini dilakukan dengan mengaplikasikan reaksi fotokatalisis berbasis katalis TiO2/karbon aktif pada berbagai komposisi katalis dan durasi penyinaran. Proses fotokatalisis dilakukan dengan penambahan katalis pada perbandingan komposisi TiO2/karbon aktif 10:1, 5:1, 3:1 dan 2:1. Sedangkan lama waktu penyinaran 3, 4, 5, dan 6 jam. Hasil penelitian menunjukkan bahwa pH terendah sesuai baku mutu yaitu 8,13 dan penurunan kadar fosfat sebesar 70,12% mampu dicapai pada komposisi katalis TiO2/karbon aktif 3:1 dengan durasi penyinaran 5 jam. Penurunan OD tertinggi dicapai pada kondisi perbandingan komposisi katalis TiO2/karbon aktif 10:1 dan durasi penyinaran 6 jam yaitu sebesar 98,86%.Water treatment is the process of treating water discharges that are not used to be discarded into the environment. Wastewater Treatment Unit Plant (WWTP) of PT. Indonesia Power is used to treat wastewater coming from several sources, one of which is HRSG Sump Pit. Wastewater from the HRSG Pit contains phosphate which is related to the phosphate addition in the previous unit which is needed as an inhibitor of corrosion process. The characteristics of liquid waste can be determined from several parameters such as pH value, optical density (OD), and phosphate content. Wastewater treatment is carried out to obtain liquid waste which comply to the quality standards before being discarded into the environment. This research was carried out by applying the photocatalysis reaction based on catalyst TiO2-activated carbon with various catalyst compositions and irradiation duration. The process of photocatalysis was carried out by adding catalysts to the ratio of the composition of TiO2 / activated carbon 10:1, 5:1, 3:1 and 2:1. While the irradiation time is 3, 4, 5 and 6 hours. The results show that the lowest pH according to quality standards was 8.13 and a reduction in phosphate content of 70.12% was achieved in the 3: 1 TiO2/activated carbon catalyst composition with a 5-hour irradiation duration. The highest OD reduction was achieved under the condition ratio of catalyst composition of TiO2/activated carbon 10:1 and the irradiation duration of 6 hours that was equal to 98.86%.

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“…Silika adalah senyawa kimia dengan rumus molekul SiO2(silika dioksida) yang dapat diperoleh dari silika mineral, nabati dan sintesis [16]. Kristal.Silika banyak dimanfaatkan dalam berbagai aplikasi di antaranya sebagai penyerap, dan penopang katalis [17]. Selain itu adanya gugus -OH yang mampu membentuk ikatan hidrogen dengan gugus yang sama dari molekul yang lain menyebabkan silika dapat digunakan sebagai pengering dan fase diam pada kolom kromatografi atau adsorben [18].…”

Section: Pendahuluanunclassified

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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Uji Aktivitas Fotokatalis Genteng Berglasir Silika/TiO2 terhadap Degradasi Larutan Indigo Carmine, Metanil Yellow dan Rhodamin

Cited by 4 publications

References 4 publications

Effect of UVC Based Photocatalyst on the Degradation of Humic Acid with Variations of pH and Variations of Concentration

Effect of UVC Based Photocatalyst on the Degradation of Humic Acid with Variations of pH and Variations of Concentration

Studi Aktivitas Reaksi Fotokatalisis Berbasis Katalis TiO2-Karbon Aktif Terhadap Mutu Air Limbah Power Plant

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

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