— Gambir ( Uncaria gambir Roxb ) belongs to the family Rubiaceae and belongs to the genus Uncaria. Gambir is commonly used as traditional medicine by the surrounding community. This proves that gambir has secondary metabolite compounds. In this study, Phytochemical screening was conducted to determine the secondary metabolite compound contained in Uncaria gambir Roxb. The result of phytochemical screening showed that Uncaria gambir Roxb contain secondary metabolite of alkaloids, flavonoid, terpenoid and saponins, but do not contained steroid compound.
{"title":"Screening Fitokimia Awal (Analisis Qualitative) Pada Daun Gambir (Uncaria Gambir Roxb) Asal Siguntur Muda","authors":"M. Melati, Hesty Parbuntari","doi":"10.24036/p.v11i3.114575","DOIUrl":"https://doi.org/10.24036/p.v11i3.114575","url":null,"abstract":"— Gambir ( Uncaria gambir Roxb ) belongs to the family Rubiaceae and belongs to the genus Uncaria. Gambir is commonly used as traditional medicine by the surrounding community. This proves that gambir has secondary metabolite compounds. In this study, Phytochemical screening was conducted to determine the secondary metabolite compound contained in Uncaria gambir Roxb. The result of phytochemical screening showed that Uncaria gambir Roxb contain secondary metabolite of alkaloids, flavonoid, terpenoid and saponins, but do not contained steroid compound.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125534817","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":"Analisis Proksimat Karbon Aktif Kulit Langsat","authors":"Annisa Nabila Rahma, Desy Kurniawati","doi":"10.24036/p.v11i3.116189","DOIUrl":"https://doi.org/10.24036/p.v11i3.116189","url":null,"abstract":"","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123215074","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}
— Methylene blue is one of the heterocyclic synthetic dyes used in textile industry, but has a negative impact on water quality and the surrounding environment. This study aims to degrade methylene blue using the photocatalytic method. The catalyst used for degradation is nano ZnO doped Cu 10%. In this study, the degradation process applies sunlight using a hexagonal mobile reactor and the light intensity is a measured used a luxmeter. The degradation process was carried out with variation of stirring at 1500 rpm and without stirring at 1,2,3, and 4 hours. Degradation results were measured using UV-Vis spectrophotometer to see adsorption before and after degradation. Results of this study obtained that the degradation using stirring has a higher percentage of degradation than without stirring. The maximum percentage of degradation obtained in study was 64,4% with a stirring speed of 1500 rpm for 4 hours irradiation.
{"title":"Pengaruh Pengadukan Pada Degradasi Methylene Blue Menggunakan Katalis ZnO Terdoping Cu","authors":"Nafika Nurullita, Rahadian Zainul","doi":"10.24036/p.v11i3.115089","DOIUrl":"https://doi.org/10.24036/p.v11i3.115089","url":null,"abstract":"— Methylene blue is one of the heterocyclic synthetic dyes used in textile industry, but has a negative impact on water quality and the surrounding environment. This study aims to degrade methylene blue using the photocatalytic method. The catalyst used for degradation is nano ZnO doped Cu 10%. In this study, the degradation process applies sunlight using a hexagonal mobile reactor and the light intensity is a measured used a luxmeter. The degradation process was carried out with variation of stirring at 1500 rpm and without stirring at 1,2,3, and 4 hours. Degradation results were measured using UV-Vis spectrophotometer to see adsorption before and after degradation. Results of this study obtained that the degradation using stirring has a higher percentage of degradation than without stirring. The maximum percentage of degradation obtained in study was 64,4% with a stirring speed of 1500 rpm for 4 hours irradiation.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"19 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126337958","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}
— Research has been carried out with the aim of knowing the characteristics of activated carbon made from bagasse waste to be used as a support for zinc oxide (ZnO) catalysts using the impregnation method and the ability of the catalyst to degrade Rhodamin B dyes. Activated carbon is impregnated with Zn(NO 3 ) 2 .6H 2 O with variations activated carbon 5%, 10%, 15%, 20%, and 25% to 15 gram mass of Zn(NO 3 ) 2 .6H 2 O. The impregnated KA/ZnO was then contacted with 10 ppm Rhodamine B dye with a degradation time of 120 minutes. The mass of KA/ZnO used was 25 mg, 50 mg and 75 mg. The FTIR (Fourier Transform Infra Red) results of the KA/ZnO catalyst show that Zn-O molecules have entered into the pores of the activated carbon marked by the appearance of absorption peaks at wavelengths of 426.28 cm-1, 419.52 cm-1, and 437.85 cm-1 . The results of UV-Vis spectrophotometer measurements obtained the highest degradation percentage of Rhodamin B dye, namely 88.23% at 10% KA/ZnO with a catalyst mass of 75 mg.
{"title":"Peningkatan Kemampuan Degradasi ZnO Terhadap Rhodamin B Dengan Impregnasinya Pada Karbon Aktif Dari Ampas Tebu","authors":"Winda Anisa, M. Khair","doi":"10.24036/p.v11i3.115994","DOIUrl":"https://doi.org/10.24036/p.v11i3.115994","url":null,"abstract":"— Research has been carried out with the aim of knowing the characteristics of activated carbon made from bagasse waste to be used as a support for zinc oxide (ZnO) catalysts using the impregnation method and the ability of the catalyst to degrade Rhodamin B dyes. Activated carbon is impregnated with Zn(NO 3 ) 2 .6H 2 O with variations activated carbon 5%, 10%, 15%, 20%, and 25% to 15 gram mass of Zn(NO 3 ) 2 .6H 2 O. The impregnated KA/ZnO was then contacted with 10 ppm Rhodamine B dye with a degradation time of 120 minutes. The mass of KA/ZnO used was 25 mg, 50 mg and 75 mg. The FTIR (Fourier Transform Infra Red) results of the KA/ZnO catalyst show that Zn-O molecules have entered into the pores of the activated carbon marked by the appearance of absorption peaks at wavelengths of 426.28 cm-1, 419.52 cm-1, and 437.85 cm-1 . The results of UV-Vis spectrophotometer measurements obtained the highest degradation percentage of Rhodamin B dye, namely 88.23% at 10% KA/ZnO with a catalyst mass of 75 mg.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134027697","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}
— Research has been carried out on phytochemical screening on the flowers of the pagoda flower plant ( Clerodendrum paniculatum L.). This study aims to determine the content of secondary metabolites in the flowers of the pagoda flower plant. The secondary metabolites tested in this study were alkaloid, flavonoid, steroid, triterpenoid, and saponin. The results showed that the flowers of the pagoda flower plant ( Clerodendrum paniculatum L.) contained secondary metabolites, namely alkaloid, flavonoid, and saponin.
{"title":"Uji Fitokimia Ekstrak Metanol Bunga Tumbuhan Bunga Pagoda (Clerodendrum paniculatum L.)","authors":"Teuku Muhamad Khairudin, S. Etika, Melindra Mulia","doi":"10.24036/p.v11i3.114971","DOIUrl":"https://doi.org/10.24036/p.v11i3.114971","url":null,"abstract":"— Research has been carried out on phytochemical screening on the flowers of the pagoda flower plant ( Clerodendrum paniculatum L.). This study aims to determine the content of secondary metabolites in the flowers of the pagoda flower plant. The secondary metabolites tested in this study were alkaloid, flavonoid, steroid, triterpenoid, and saponin. The results showed that the flowers of the pagoda flower plant ( Clerodendrum paniculatum L.) contained secondary metabolites, namely alkaloid, flavonoid, and saponin.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124968657","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}
Endophytic fungi are microorganisms that live in plant tissues without harming the host plant. One of the plants that have potential as a host for endophytic fungi is the flower of the bitter plant (Andrographis paniculata) which contains secondary metabolites and has biological activity. The purpose of this study was to obtain fungal isolates and identify the content of secondary metabolites and antibacterial activity. The results of the isolation of endophytic fungi produced isolates of endophytic fungi with isolate code BS. Microscopic observation of BS isolates belonging to Chrysosporium spp. The results of the phytochemical test of the ethyl acetate extract were positive for terpenoid compounds marked with a pink color and the FTIR spectrum containing a dimethyl gem group. BS extract also could inhibit the growth of all test bacteria, namely E. coli and S. aureus at concentrations of 1%, 3%, and 5%.
{"title":"Isolasi, Uji Fitokimia Dan Aktivitas Antibakteri Jamur Endofit Bunga Sambiloto (Andrographis Paniculata)","authors":"Rani Aulia Suhanah, Suryelita Thaher, Melindra Mulia","doi":"10.24036/p.v11i3.116134","DOIUrl":"https://doi.org/10.24036/p.v11i3.116134","url":null,"abstract":"Endophytic fungi are microorganisms that live in plant tissues without harming the host plant. One of the plants that have potential as a host for endophytic fungi is the flower of the bitter plant (Andrographis paniculata) which contains secondary metabolites and has biological activity. The purpose of this study was to obtain fungal isolates and identify the content of secondary metabolites and antibacterial activity. The results of the isolation of endophytic fungi produced isolates of endophytic fungi with isolate code BS. Microscopic observation of BS isolates belonging to Chrysosporium spp. The results of the phytochemical test of the ethyl acetate extract were positive for terpenoid compounds marked with a pink color and the FTIR spectrum containing a dimethyl gem group. BS extract also could inhibit the growth of all test bacteria, namely E. coli and S. aureus at concentrations of 1%, 3%, and 5%.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132680358","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}
S. Budiman, Hary Sanjaya, Isnaeni Isnaeni, Umar Kalmar Nizar, Edi Nasra
— The degradation of methylene blue was carried out by photolysis method with the help of a Cdots/Au catalyst. This study aims to determine the optimum concentration of dopen Au for Cdots and the optimum time for degradation of methylene blue with the help of a Cdots/Au catalyst. The photolysis method was carried out in a reactor equipped with 3 15 watt lamps with a UV wavelength of 254 nm. The absorption of methylene blue was measured using a spectrophotometerUV-Vis. The optimum Au dopen results were obtained at a concentration of 25 ppm with a degradation percentage of 39.94% and the optimum time for photolysis degradation was 6 hours of irradiation with a degradation percentage of 70.28%.
{"title":"Dedradasi Metilen Biru Secara Fotolisis Dengan Katalis Cdots Doping Au","authors":"S. Budiman, Hary Sanjaya, Isnaeni Isnaeni, Umar Kalmar Nizar, Edi Nasra","doi":"10.24036/p.v11i3.115918","DOIUrl":"https://doi.org/10.24036/p.v11i3.115918","url":null,"abstract":"— The degradation of methylene blue was carried out by photolysis method with the help of a Cdots/Au catalyst. This study aims to determine the optimum concentration of dopen Au for Cdots and the optimum time for degradation of methylene blue with the help of a Cdots/Au catalyst. The photolysis method was carried out in a reactor equipped with 3 15 watt lamps with a UV wavelength of 254 nm. The absorption of methylene blue was measured using a spectrophotometerUV-Vis. The optimum Au dopen results were obtained at a concentration of 25 ppm with a degradation percentage of 39.94% and the optimum time for photolysis degradation was 6 hours of irradiation with a degradation percentage of 70.28%.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129518504","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}
Norma Wahyunita, Ananda Putra, Umar Kalmar Nizar, Fajriah Azra
— Plastic is a polymer that we use a lot in everyday life, but it has a bad impact on the environment because it is difficult to degrade in nature. Therefore, a study was carried out to make plastic that is more environmentally friendly, namelyplastic Biodegradable that utilizes bacterial cellulose from Acetobacter xylinum with old coconut water as a medium with the addition of a plasticizer in the form of Polyethylene Glycol (PEG) and the addition of gum arabic additives with variations in the mass of gum arabic, namely 0g , 1g, 3g, 5g and 7g. The bacterial cellulose plastic PEG gum arabic produced was characterized includingwater content, degree ofswelling,testtensile strength, elongation, elasticity, ability biodegradation, functional group analysis (FTIR) and crystallinity test (XRD). The results of testing the water content and degree of swelling on PEG gum arabic bacterial cellulose plastic, obtained plastic with the more mass of gum arabic added, the greater the percentage of water content and degree of swelling. The results of mechanical testing showed an increase in the value of tensile strength and elasticity along with the amount of gum arabic added but the elongation value decreased. In the biodegradation test, it was found that the more gum arabic which was added, the biodegradation ability increased. The analysis of the plastic functional groups showed that there were no new groups formed. Crystallinity analysis showed that the addition of gum arabic can reduce the percentage of crystallinity.
{"title":"Pengaruh Penambahan Gum Arab Terhadap Pembuatan Plastik Biodegradable dari Air Kelapa","authors":"Norma Wahyunita, Ananda Putra, Umar Kalmar Nizar, Fajriah Azra","doi":"10.24036/p.v11i3.116214","DOIUrl":"https://doi.org/10.24036/p.v11i3.116214","url":null,"abstract":"— Plastic is a polymer that we use a lot in everyday life, but it has a bad impact on the environment because it is difficult to degrade in nature. Therefore, a study was carried out to make plastic that is more environmentally friendly, namelyplastic Biodegradable that utilizes bacterial cellulose from Acetobacter xylinum with old coconut water as a medium with the addition of a plasticizer in the form of Polyethylene Glycol (PEG) and the addition of gum arabic additives with variations in the mass of gum arabic, namely 0g , 1g, 3g, 5g and 7g. The bacterial cellulose plastic PEG gum arabic produced was characterized includingwater content, degree ofswelling,testtensile strength, elongation, elasticity, ability biodegradation, functional group analysis (FTIR) and crystallinity test (XRD). The results of testing the water content and degree of swelling on PEG gum arabic bacterial cellulose plastic, obtained plastic with the more mass of gum arabic added, the greater the percentage of water content and degree of swelling. The results of mechanical testing showed an increase in the value of tensile strength and elasticity along with the amount of gum arabic added but the elongation value decreased. In the biodegradation test, it was found that the more gum arabic which was added, the biodegradation ability increased. The analysis of the plastic functional groups showed that there were no new groups formed. Crystallinity analysis showed that the addition of gum arabic can reduce the percentage of crystallinity.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116639537","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}
— DSSC ( Dye-Sensitized Solar Cell ) is a type of third-generation solar cell based on dye as a photon absorber that has been widely used. In this study, modifications were made to tannin dyes to increase double bonds. Modifications were also carried out on the semiconductor by means of TiO 2 -CuO doping. TiO 2 -CuO doping can reduce the energy gap thereby increasing the TiO 2 conductivity. The dyes were characterized using FTIR and GC-MS, while the TiO 2 -CuO doping was characterized using a UV-DRS Spectrophotometer. The results of FTIR characterization of poly tannin dyes have shown specific groups of polymerization of polytannin glutaraldehyde resin. The characterization of TiO 2 -CuO doping showed a decrease in the energy gap of 3,2 eV to 3,01 eV. The highest efficiency was produced at 90 minutes polymer time with a tannin monomer concentration of 0,4 M of 8,332%.
{"title":"Preparasi Poli Tanin Untuk Meningkatkan Efisiensi Dye-Sensitized Solar Cell (DSSC) Preparasi Poli Tanin untuk Meningkatkan Efisiensi Dye-Sensitized Solar Cell (DSSC)","authors":"Annisa Ade Putri, Hardeli Hardeli, Fajriah Azra, Minda Azhar","doi":"10.24036/p.v11i3.114985","DOIUrl":"https://doi.org/10.24036/p.v11i3.114985","url":null,"abstract":"— DSSC ( Dye-Sensitized Solar Cell ) is a type of third-generation solar cell based on dye as a photon absorber that has been widely used. In this study, modifications were made to tannin dyes to increase double bonds. Modifications were also carried out on the semiconductor by means of TiO 2 -CuO doping. TiO 2 -CuO doping can reduce the energy gap thereby increasing the TiO 2 conductivity. The dyes were characterized using FTIR and GC-MS, while the TiO 2 -CuO doping was characterized using a UV-DRS Spectrophotometer. The results of FTIR characterization of poly tannin dyes have shown specific groups of polymerization of polytannin glutaraldehyde resin. The characterization of TiO 2 -CuO doping showed a decrease in the energy gap of 3,2 eV to 3,01 eV. The highest efficiency was produced at 90 minutes polymer time with a tannin monomer concentration of 0,4 M of 8,332%.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116562952","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}
— Phenol is included in hazardous waste so that its presence in the environment needs to be controlled. Phenol contamined water can cause liver damage, diarrhea, dark urine, and red blood cell breakdown. To overcome this environmental problem, the adsorption method can be applied using synthesized compounds such as C-CinnamalCalix[4]Resorcinarene (CCCR). CCCR is a derivative of Calix[4]Resorcinarene which can act as a host for cations, anions, and neutral molecules. It has a unique shape that has an active group, which can form hydrogen bonding with phenol solution. The purpose of this study was to determine the optimum conditions with variation in stirring speeds of 50, 100, 150, 200, and 250 rpm and contact times of 45, 60, 75, 105, and 150 minutes. Phenol was analyzed using a UV-Vis spectrophotometer (Specord 210). Adsorption phenol with CCCR obtained optimum conditions at stirring speeds of 200 rpm with an adsorption capacity of 2.016 mg/g and contact times of 60 minutes with an adsorption capacity of 2.079 mg/g.
{"title":"Pengaruh Kecepatan Pengadukan dan Waktu Kontak Terhadap Penyerapan Fenol Menggunakan Adsorben C-SinamalKaliks[4]Resorsinarena Hasil Sintesis Limbah Minyak Kayu Manis (Cinnamomum burmanii)","authors":"Dewi Kristina, S. Etika, Edi Nasra, Budhi Oktavia","doi":"10.24036/p.v11i3.115255","DOIUrl":"https://doi.org/10.24036/p.v11i3.115255","url":null,"abstract":"— Phenol is included in hazardous waste so that its presence in the environment needs to be controlled. Phenol contamined water can cause liver damage, diarrhea, dark urine, and red blood cell breakdown. To overcome this environmental problem, the adsorption method can be applied using synthesized compounds such as C-CinnamalCalix[4]Resorcinarene (CCCR). CCCR is a derivative of Calix[4]Resorcinarene which can act as a host for cations, anions, and neutral molecules. It has a unique shape that has an active group, which can form hydrogen bonding with phenol solution. The purpose of this study was to determine the optimum conditions with variation in stirring speeds of 50, 100, 150, 200, and 250 rpm and contact times of 45, 60, 75, 105, and 150 minutes. Phenol was analyzed using a UV-Vis spectrophotometer (Specord 210). Adsorption phenol with CCCR obtained optimum conditions at stirring speeds of 200 rpm with an adsorption capacity of 2.016 mg/g and contact times of 60 minutes with an adsorption capacity of 2.079 mg/g.","PeriodicalId":213875,"journal":{"name":"Jurnal Periodic Jurusan Kimia UNP","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116491008","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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