{"title":"Sintesis Karbon Aktif Kulit Durian Serta Penyerapannya Terhadap Logam Berat Pb(II) dengan Metode Batch","authors":"D. Lestari, Edi Nasra","doi":"10.24036/p.v11i2.113363","DOIUrl":"https://doi.org/10.24036/p.v11i2.113363","url":null,"abstract":"","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"41 21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128488349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimasi Penyerapan Malachite Green Menggunakan C-Sinamalkaliks[4]Resorsinarena Hasil Sintesis Sebagai Adsorben","authors":"Dewi Fortuna Khairil, S. Etika","doi":"10.24036/p.v11i2.113294","DOIUrl":"https://doi.org/10.24036/p.v11i2.113294","url":null,"abstract":"","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125914955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
— Pleurotus ostreatus is fungi from the family of agaricaceae or a type of mushroom that grows in wood and is usually consumed by the Indonesian people and cultivated with a simple technique. Pleurotus ostreatus have a lot of nutrients and contain secondary metabolites that can affect the use of bioactive properties as drug compounds. In this study, phytochemical screening was conducted to determine the secondary metabolites contained in Pleurotus ostreatus. The results of phytochemical screening showed that Pleurotus ostreatus contain secondary metabolite of alkaloids, steroids and saponins, but do not contained terpenoid and flavonoid.
{"title":"Identifikasi Senyawa Metabolit Sekunder Ekstrak Jamur Tiram Putih (Pleurotus ostreatus L.)","authors":"Intan Apri Resti, Hesty Parbuntari","doi":"10.24036/p.v11i2.114563","DOIUrl":"https://doi.org/10.24036/p.v11i2.114563","url":null,"abstract":"— Pleurotus ostreatus is fungi from the family of agaricaceae or a type of mushroom that grows in wood and is usually consumed by the Indonesian people and cultivated with a simple technique. Pleurotus ostreatus have a lot of nutrients and contain secondary metabolites that can affect the use of bioactive properties as drug compounds. In this study, phytochemical screening was conducted to determine the secondary metabolites contained in Pleurotus ostreatus. The results of phytochemical screening showed that Pleurotus ostreatus contain secondary metabolite of alkaloids, steroids and saponins, but do not contained terpenoid and flavonoid.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123804874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Syifa Rahma Ayunda, Rahadian Zainul, Budhi Oktavia, Ananda Putra
— Humic acid is a heterogeneous molecule of organic substance present in a peat water, which is carcinogenic is difficult to degrade. This study aims to degrade humic acid using the photocatalyst method is an environmentally friendly method. The photocatalyst used was TiO 2 doped Nitrogen 8%. This study used reactor mobile hexagonal with variations in stirring speed, namely 500, 1000 rpm, and without stir with an irradiation time of 1 to 3 hours. Result of degradation analyzed using UV-Vis spectrophotometer. The degradation results obtained using strirring have a higher percentage of degradation than without strirring. The maximum degradation percentage obtained in this study was 76,27% with 500 rpm strirrings at 2 hours irradiation.
{"title":"Degradasi Asam Humat Dengan Katalis TiO2/N Menggunakan Cahaya Matahari","authors":"Syifa Rahma Ayunda, Rahadian Zainul, Budhi Oktavia, Ananda Putra","doi":"10.24036/p.v11i2.114010","DOIUrl":"https://doi.org/10.24036/p.v11i2.114010","url":null,"abstract":"— Humic acid is a heterogeneous molecule of organic substance present in a peat water, which is carcinogenic is difficult to degrade. This study aims to degrade humic acid using the photocatalyst method is an environmentally friendly method. The photocatalyst used was TiO 2 doped Nitrogen 8%. This study used reactor mobile hexagonal with variations in stirring speed, namely 500, 1000 rpm, and without stir with an irradiation time of 1 to 3 hours. Result of degradation analyzed using UV-Vis spectrophotometer. The degradation results obtained using strirring have a higher percentage of degradation than without strirring. The maximum degradation percentage obtained in this study was 76,27% with 500 rpm strirrings at 2 hours irradiation.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133956876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vivi Chaniasi, Budhi Oktavia, I. Dewata, Ananda Putra
Heavy metal is the most dangerous was for the ecosystem because is not biodegradable, toxic, and carcinogenic even in a low concentration (ppm). It usually experienced some conditions such as not dissolved, precipitated, fused, absorbed, anorganic, reducer, oxidize, and free metal. One of the heavy metals that can cause negative effects for human and other living creature is Kromium Ion. The waste of the usage of Krom can damage the environment. Krom is a heavy metal that has dangerous affects that we have to be aware of. Krom (VI) on water was found 2 form od specieses, as an anion (Cr2O7)2- (In Acid solution) and anion (CrO4)2- (In Alkaline solution). One of the ways how to overcome Krom in a waste is by absorb it with an adsorbent, modified Silica DMA. It characterized with an electron microscope scanning, infrared spectrum, K2CrO4 adsorption from liquid solution which investigated in some pH level, contact time, K2CrO4 first concentration. The result of the experiment shows that modifying silica with DMA increases the adsorption capacity for Kromat. Langmuir Isotherm Adsorption resulting regression coefficient on Silica R2=0,8488, and for the modified Silica R2=0,9054. Kromat maximum adsorption capacity on 1,255 mg/g Silica and 2,26 mg/g modified Silica with first concentration of K2CrO4 100 mg/L can be reach on pH 2 with 90 minutes mixing process.
{"title":"Penentuan Kondisi Optimum Penyerapan Anion Kromat Pada Silika Termodifikasi Dimetilamina","authors":"Vivi Chaniasi, Budhi Oktavia, I. Dewata, Ananda Putra","doi":"10.24036/p.v11i2.115134","DOIUrl":"https://doi.org/10.24036/p.v11i2.115134","url":null,"abstract":"Heavy metal is the most dangerous was for the ecosystem because is not biodegradable, toxic, and carcinogenic even in a low concentration (ppm). It usually experienced some conditions such as not dissolved, precipitated, fused, absorbed, anorganic, reducer, oxidize, and free metal. One of the heavy metals that can cause negative effects for human and other living creature is Kromium Ion. The waste of the usage of Krom can damage the environment. Krom is a heavy metal that has dangerous affects that we have to be aware of. Krom (VI) on water was found 2 form od specieses, as an anion (Cr2O7)2- (In Acid solution) and anion (CrO4)2- (In Alkaline solution). One of the ways how to overcome Krom in a waste is by absorb it with an adsorbent, modified Silica DMA. It characterized with an electron microscope scanning, infrared spectrum, K2CrO4 adsorption from liquid solution which investigated in some pH level, contact time, K2CrO4 first concentration. The result of the experiment shows that modifying silica with DMA increases the adsorption capacity for Kromat. Langmuir Isotherm Adsorption resulting regression coefficient on Silica R2=0,8488, and for the modified Silica R2=0,9054. Kromat maximum adsorption capacity on 1,255 mg/g Silica and 2,26 mg/g modified Silica with first concentration of K2CrO4 100 mg/L can be reach on pH 2 with 90 minutes mixing process.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127882033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
— The purpose of the research was to see how different moles of K 3 Fe(CN) 6 affected the color of Prussian blue in order to find the best synthesis conditions. Methods for separating pigments from solvents include coprecipitation and centrifugation. Prussian Blue was created by reacting Fe 3 O 4 with 96% H 2 SO 4 to produce Fe 2+ ions, which were then reacted with K 3 Fe(CN) 6 to produce Prussian Blue. The variation results were referred to as M1, M2, and M3 in this study, which varied three samples of K 3 Fe(CN) 6 . 3.037 mmol K 3 Fe(CN) 6 was reacted at 30.37 mM in sample M1. Sample M2 was made by reacting 9.87 mmol K 3 Fe(CN) 6 30.37 mM with 4.56 mmol FeSO 4 0.018 mM 250 mL. Sample M3 reacted with 12.21 mmol K 3 Fe(CN) 6 at a concentration of 30.37 mM. The M2 sample is the best in terms of K 3 Fe(CN) 6 variation. According to the standard absorbance wavelength of Prussian Blue (680-740 nm), the maximum UV-Vis absorbance of M2 products is at 747 nm, and the absorbance is relatively high.
{"title":"Pengaruh Mol K3Fe(CN)6 pada Sintesis Zat Warna Biru Prusia berbahan Pasir Besi Muara Pantai Sunur Pariaman","authors":"Nafis Sudirman, Syamsi Aini","doi":"10.24036/p.v11i2.113684","DOIUrl":"https://doi.org/10.24036/p.v11i2.113684","url":null,"abstract":"— The purpose of the research was to see how different moles of K 3 Fe(CN) 6 affected the color of Prussian blue in order to find the best synthesis conditions. Methods for separating pigments from solvents include coprecipitation and centrifugation. Prussian Blue was created by reacting Fe 3 O 4 with 96% H 2 SO 4 to produce Fe 2+ ions, which were then reacted with K 3 Fe(CN) 6 to produce Prussian Blue. The variation results were referred to as M1, M2, and M3 in this study, which varied three samples of K 3 Fe(CN) 6 . 3.037 mmol K 3 Fe(CN) 6 was reacted at 30.37 mM in sample M1. Sample M2 was made by reacting 9.87 mmol K 3 Fe(CN) 6 30.37 mM with 4.56 mmol FeSO 4 0.018 mM 250 mL. Sample M3 reacted with 12.21 mmol K 3 Fe(CN) 6 at a concentration of 30.37 mM. The M2 sample is the best in terms of K 3 Fe(CN) 6 variation. According to the standard absorbance wavelength of Prussian Blue (680-740 nm), the maximum UV-Vis absorbance of M2 products is at 747 nm, and the absorbance is relatively high.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"457 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122603035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Plastik Biodegradable dari Pati Buah Sukun Dengan Penambahan Plasticizer Gliserol","authors":"Indah Nulfia, S. Etika","doi":"10.24036/p.v11i2.113483","DOIUrl":"https://doi.org/10.24036/p.v11i2.113483","url":null,"abstract":"","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123449638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pengujian Senyawa C-Sinamalkaliks[4]Resorsinarena Hasil Sintesis Dari Limbah Minyak Kayu Manis (Cinnamomum Burmanii) Sebagai Antioksidan","authors":"Susiyati Safitri, S. Etika","doi":"10.24036/p.v11i2.114682","DOIUrl":"https://doi.org/10.24036/p.v11i2.114682","url":null,"abstract":"","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126549774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
— This research studies of degradation of rhodamine b with oxidator of hydrogen peroxide and determine how much time the optimum degrade rhodamin b as well as the percent degradation using the photocatalytic method. The photocatalyst used for degradation is TiO 2 -N 8%. The degradation was carried out with variation the concentrations of hydrogen peroxide 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% and 50% and the variation of irradiation time is 30, 60, 90, 120, 150, 180, 210 and 240 minutes. Result of degradation analysed using UV-Vis spectrophotometer. The result showed that the greater the concentration of hydrogen peroxide added, the greater the percentage degradation of rhodamine b. The highest percentage degradation was obtained at 90,26% at the addition of hydrogen peroxide concentration 50% and the optimum time to degrade rhodamin b was 210 minutes with 86,5% degradation percentage with the addition of hydrogen peroxide.
{"title":"Degradasi Rhodamin B Menggunakan Katalis TiO2-N dan Oksidator Hidrogen Peroksida","authors":"Cika Dania Marca, Rahadian Zainul","doi":"10.24036/p.v11i2.114683","DOIUrl":"https://doi.org/10.24036/p.v11i2.114683","url":null,"abstract":"— This research studies of degradation of rhodamine b with oxidator of hydrogen peroxide and determine how much time the optimum degrade rhodamin b as well as the percent degradation using the photocatalytic method. The photocatalyst used for degradation is TiO 2 -N 8%. The degradation was carried out with variation the concentrations of hydrogen peroxide 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% and 50% and the variation of irradiation time is 30, 60, 90, 120, 150, 180, 210 and 240 minutes. Result of degradation analysed using UV-Vis spectrophotometer. The result showed that the greater the concentration of hydrogen peroxide added, the greater the percentage degradation of rhodamine b. The highest percentage degradation was obtained at 90,26% at the addition of hydrogen peroxide concentration 50% and the optimum time to degrade rhodamin b was 210 minutes with 86,5% degradation percentage with the addition of hydrogen peroxide.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117267738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Titanium dioxide (TiO2) is a semiconductor material that is often applied as a photocatalyst. TiO2 has a band gap of 3.20 eV which is less effective when used in visible light. Nitrogen dopants are dopants that have high effectiveness to improve the performance of TiO2 in the visible light region. This study aims to determine the effect of adding nitrogen dopant concentration on the characteristics of TiO2 and its photocatalytic activity in degrading methylene blue. The photocatalytic activity of TiO2-N was tested with 10 ppm methylene blue under sunlight for 1 hour. The addition of dopants to the TiO2 matrix has an effect on the band gap and photocatalytic activity of TiO2
{"title":"Pengaruh Penambahan Konsentrasi (NH2)2CO Terhadap Karakteristik TiO2 dan Aktifitas Fotokatalitiknya Dalam Mendegradasi Methylene Blue","authors":"Novera Elsi Mudia, Rahadian Zainul, Deski Beri, Syamsi Aini","doi":"10.24036/p.v11i2.114521","DOIUrl":"https://doi.org/10.24036/p.v11i2.114521","url":null,"abstract":"Titanium dioxide (TiO2) is a semiconductor material that is often applied as a photocatalyst. TiO2 has a band gap of 3.20 eV which is less effective when used in visible light. Nitrogen dopants are dopants that have high effectiveness to improve the performance of TiO2 in the visible light region. This study aims to determine the effect of adding nitrogen dopant concentration on the characteristics of TiO2 and its photocatalytic activity in degrading methylene blue. The photocatalytic activity of TiO2-N was tested with 10 ppm methylene blue under sunlight for 1 hour. The addition of dopants to the TiO2 matrix has an effect on the band gap and photocatalytic activity of TiO2","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115719155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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