4TH INTERNATIONAL SEMINAR ON CHEMISTRY最新文献_第5页

Synthesis of NiCl2 impregnated mesoporous carbon and its adsorption activity on CO2 NiCl2浸渍介孔碳的合成及其对CO2的吸附性能

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0051524

Anggi Afriani, I. Abdullah, Y. Krisnandi

{"title":"Synthesis of NiCl2 impregnated mesoporous carbon and its adsorption activity on CO2","authors":"Anggi Afriani, I. Abdullah, Y. Krisnandi","doi":"10.1063/5.0051524","DOIUrl":"https://doi.org/10.1063/5.0051524","url":null,"abstract":"The continuous increase of CO2 concentrations in the atmosphere for decades has influenced the global climate change. Efforts to overcome the high concentration of CO2 need to be done, one of which is the Carbon Capture and Storage (CCS) method through CO2 capture on an adsorbent. In this research, mesoporous carbon impregnated with NiCl2 (NiCl2/MC) was employed for the adsorption of CO2 gas. Mesoporous carbon was successfully synthesized using soft template method which was evidenced by the results of the XRD analysis which showed typical diffraction patterns of carbon materials which were 25.68° and 43.26° with the Miller index of (002) and (100), respectively. Mesoporous carbon materials and NiCl2/MC were characterized by FT-IR, XRD, SAA and SEM-EDX. The results of the SAA characterization showed that NiCl2/MCbelongs to materials that have meso-sized pores with the pore size of 9.6 nm. The CO2 adsorption test using MC and NiCl2/MC were carried out by passing CO2 gas through the adsorbent for 15 minutes and the result showed that MC material obtained a value of 0.46 mmol CO2 per gram of adsorbent while NiCl2/MC was able to obtain a value of 8.90 mmol CO2 per gram of adsorbent.","PeriodicalId":6833,"journal":{"name":"4TH INTERNATIONAL SEMINAR ON CHEMISTRY","volume":"87 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80554192","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}

引用次数: 2

Marine litter composition and density in Alor Island 亚洛岛海洋垃圾组成及密度

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0052002

F. V. L. Koly, Alexandra M. Waskita, P. E. Plaimo, I. Aryawan

{"title":"Marine litter composition and density in Alor Island","authors":"F. V. L. Koly, Alexandra M. Waskita, P. E. Plaimo, I. Aryawan","doi":"10.1063/5.0052002","DOIUrl":"https://doi.org/10.1063/5.0052002","url":null,"abstract":"The habit of littering as well as illegal waste dumping into the river and the ocean is commonly found in various regions in Indonesia, including Alor island. Most of waste dumped on the land end up in the coastal through river flows and water run-off and at the and at the end is carried away to the ocean. The inappropriate existence of anthropogenic waste causes damage to marine and coastal ecosystems, for instance plastic ocean, while the ocean provides livelihood for most coastal people in Alor. In addition, dirty coastal areas due to trash littering and illegal waste dumping can be another issue in terms of marine tourism activity which is currently being promoted by the Alor Regency government. Therefore, further research is needed in order to support the making of waste management regulation as well as educational and awareness raising within people of Alor island. This research supported by citizen science of Plastic Free Ocean Network Alor identified the composition and concentration of marine litter in Alor Island using the line transect method developed by CSIRO. The result showed that the top three marine litter compositions in all locations during January-June 2019 were soft plastic, hard plastic and glass. The density of marine litter on Alor Island is categorized as high density as a whole. The location that contributed the highest marine litter density was Kadelang Beach.","PeriodicalId":6833,"journal":{"name":"4TH INTERNATIONAL SEMINAR ON CHEMISTRY","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80478911","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}

引用次数: 1

Green synthesis of Au-doped ZnO nanoparticles by in-situ process using Imperata cylindrica L leaf extract 白茅叶提取物原位绿色合成au掺杂ZnO纳米颗粒

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0051749

E. Budianto, Y. Yulizar, I. Saputra, S. Sudirman

{"title":"Green synthesis of Au-doped ZnO nanoparticles by in-situ process using Imperata cylindrica L leaf extract","authors":"E. Budianto, Y. Yulizar, I. Saputra, S. Sudirman","doi":"10.1063/5.0051749","DOIUrl":"https://doi.org/10.1063/5.0051749","url":null,"abstract":"Au-doped ZnO nanoparticles were synthesized using eco-friendly substance of Imperata cylindrica L (ICL) leaf extract by the in-situ process. The function of Imperata cylindrica L leaf extract as a medium for the formation reaction of Au-doped ZnO nanoparticles. Powders of Au-doped ZnO nanoparticles was analyzed using Diffuse Reflectance Spectroscopy (UV-Vis DRS), Fourier Transform Infra-red Spectroscopy (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX) and Raman Spectroscopy. UV-Vis DRS showed the value of the band gap of ZnO changed from 3.2 eV to 2.5 eV. FTIR showed a reduced -OH absorption peak at wavenumber of 3429 cm−1, 1182 cm−1 and the vibration at 502 cm−1 indicated that Au-doped ZnO nanoparticles successfully synthesized. XRD showed of Au-doped ZnO nanoparticles has a crystallite size of 21.37 nm and decreasing peaks of crystallinity in the miller index (100). The results of SEM-EDX showed the changes of morphology Au-doped ZnO nanoparticles from hexagonal to sphere with the composition of elements is Zn, O and Au. Raman spectroscopy showed a strong vibration peaks at 320 cm−1, 410 cm−1, 590 cm−1 and 1090 cm−1.","PeriodicalId":6833,"journal":{"name":"4TH INTERNATIONAL SEMINAR ON CHEMISTRY","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89109062","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}

引用次数: 2

Synthesis of new vanillin derivatives from natural eugenol 天然丁香酚合成新的香兰素衍生物

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0051751

Reni Rahayu, M. A. Aziz, Mohammad Holil, M. Santoso

引用次数: 0

Optimization study of alkyl polyglycoside C12 synthesis using indirect method 间接法合成烷基多糖苷C12的优化研究

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0051813

Febri P. A. Kinanti, D. U. C. Rahayu, A. P. Gustianthy, Y. Krisnandi

{"title":"Optimization study of alkyl polyglycoside C12 synthesis using indirect method","authors":"Febri P. A. Kinanti, D. U. C. Rahayu, A. P. Gustianthy, Y. Krisnandi","doi":"10.1063/5.0051813","DOIUrl":"https://doi.org/10.1063/5.0051813","url":null,"abstract":"Alkyl polyglycosides (APGs) are classified as non-ionic and green surfactants that can be synthesized from renewable materials such as glucose and fatty alcohol. APGs are commonly applied as surfactants in enhancing oil recovery (EOR) since APGs exhibit excellent interfacial activities, emulsified abilities, foaming performance, and wettabilities. In this research, the mixture of APG C12 was synthesized following the indirect method, which was consisted of two stages, i.e. butanolysis and transacetalization. Butanolysis was carried out by reacting glucose in technical grade with 1-butanol (1:2.8, m/m) and PTSA catalyst 1 mol% at 106°C for 6h. The mixture of APG C4 from butanolysis then was further applied in transacetalization without purification by adding 1-dodecanol with some optimizations, i.e. mass ratio of 1-dodecanol, reaction time, and temperature. The optimum condition to afford the APG C12 mixture was the mass ratio of glucose in technical grade and 1-dodecanol 1:7.5 m/m with PTSA catalyst 0.5 mol% at 115°C for 4h. All the mixture of APGs were analyzed for its remaining reducing sugar level using Benedict’s test and further characterized using FTIR, UV-Vis, and LC-MS/MS. Moreover, physical characteristic tests such as compatibility, emulsion stability, solubility, and interfacial tension tests were also conducted on all the mixture of APGs. This study reveals that APGs can be synthesized using the indirect method with moderate to good physical characteristics which can be used for EOR surfactant for further application.","PeriodicalId":6833,"journal":{"name":"4TH INTERNATIONAL SEMINAR ON CHEMISTRY","volume":"87 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84074708","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}

引用次数: 1

Surface modification of nanoporous carbon using gamma irradiation treatment as supercapacitor material 纳米多孔碳作为超级电容器材料的辐照表面改性研究

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0052360

A. Annisa, I. Prasetyo, D. Swantomo, T. Ariyanto

引用次数: 2

Adsorb red procion in batik waste used baggase adsorbent 在蜡染废渣中吸附红色产物，采用袋装酶吸附剂

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0051526

Camelia A. Fahira, D. Damayanti, Alifia Febrianti, R. Lestari

{"title":"Adsorb red procion in batik waste used baggase adsorbent","authors":"Camelia A. Fahira, D. Damayanti, Alifia Febrianti, R. Lestari","doi":"10.1063/5.0051526","DOIUrl":"https://doi.org/10.1063/5.0051526","url":null,"abstract":"The batik and textile industry is one of the producers of liquid waste from the coloring process. Liquid waste in the batik coloring process is very dangerous. There are several methods of processing batik liquid waste, one of which is the adsorption method using activated carbon adsorbent. In this research, activated carbon is made from bagasse which is activated with NaCl. The chemical composition of bagasse is 50% cellulose, 25% hemicellulose, and 25% lignin. The purpose of this experiment was to determine the process of making activated carbon adsorbent from bagasse and to determine the absorption rate of bagasse adsorbent against red procion dye in batik industrial wastewater. Research on the use of activated carbon from bagasse to absorb red procion dye from batik industrial waste has been carried out. Activated carbon was made by carbonization process at 4000°C for 30 minutes. The chracterization of activated carbon produced was carried out by FTIR to determine its functional groups. The optimum conditions for the adsorption of activated carbon from bagasse against red procion were carried out by varying the contact time, weight of activated carbon, and pH. The results of FTIR characterization on activated carbon from bagasse showed the presence of -CO- and -OH functional groups. The optimum conditions for adsorption of activated carbon from bagasse were obtained at a contact time of 90 minutes with a weight of 0.1 g of activated carbon and an optimum pH of 5 for 50 mL of red procion dye with a concentration of 20 mg / L. The absorption effectiveness of red procion dye from batik industrial wastewater by activated carbon from bagasse in optimum conditions is 69, 04%.","PeriodicalId":6833,"journal":{"name":"4TH INTERNATIONAL SEMINAR ON CHEMISTRY","volume":"158 4018 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85150803","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}

引用次数: 1

Optimization of lignin removal pre-treatment process in acetone-butanol-ethanol (ABE) production from empty fruit bunches of oil palm 油棕空果束生产丙酮-丁醇-乙醇(ABE)脱除木质素预处理工艺优化

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0052179

L. Pudjiastuti, T. Widjaja, A. Altway, Inti Rohmania, Nur A. Rohmah

引用次数: 0

Intramolecular hydrogen bond and vibrational spectroscopic study of cellulose oligosaccharide using density functional theory 用密度泛函理论研究纤维素低聚糖的分子内氢键和振动光谱

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0054693

A. Pambudi, A. Priyangga, D. Hartanto, L. Atmaja

引用次数: 2

Synthesis and characterization of metal soap (Zn-, Al-, and Mg-soap) from sunflower oil and its potential as sunscreen 葵花籽油金属皂(锌、铝、镁皂)的合成与表征及其防晒潜力

4TH INTERNATIONAL SEMINAR ON CHEMISTRY Pub Date : 2021-06-24 DOI: 10.1063/5.0051616

S. Sutrisno, H. W. Wijaya, D. Sukarianingsih, Muhammad N. D. Santiaji

{"title":"Synthesis and characterization of metal soap (Zn-, Al-, and Mg-soap) from sunflower oil and its potential as sunscreen","authors":"S. Sutrisno, H. W. Wijaya, D. Sukarianingsih, Muhammad N. D. Santiaji","doi":"10.1063/5.0051616","DOIUrl":"https://doi.org/10.1063/5.0051616","url":null,"abstract":"Zinc, aluminum, and magnesium soaps are known as synthetic metal soaps. This research aims to synthesize zinc-, aluminum-, and magnesium soaps from sunflower oil and test its activity as a sunscreen. The synthesized was carried out with the following steps (1) synthesis of K-soap through the saponification of oil with KOH, (2) synthesis of metal soap through the trans-saponification of K-soap with its chloride salts, (3) characterization of physical properties and identification through IR, XRD, and XRF, and (4) sunscreen activity assay. The synthesized Zn-, Al-, and Mg-soap are white solids, melting points of 72–76, 76–90, and 102–120°C respectively. These three metal soaps are soluble in chloroform, but insoluble in water and n-hexane. Mg-soap soluble in methanol, while Zn- and Al-soaps are insoluble. XRD patterns of the synthesized Zn-soap showed the unique peaks from 2θ 4-12° that is unique for the layer zinc oleate, zinc linoleate, and zinc stearate structure. However, the broad peak from 2θ 14-28° was dominant for Al- and Mg- soap. The metal content in the synthesized soaps that were analyzed using the XRF revealed the percentage substitution of K- soap by Zn, Al, and Mg, i.e. 99, 76, and 81%, respectively. SPF value of Zn-soap, Al-soap, and Mg-soap sunflower seed oil was 2.78, 0.96, and 1.63, respectively. Based-on this SPF value, Zn-soap has the potential as a sunscreen.","PeriodicalId":6833,"journal":{"name":"4TH INTERNATIONAL SEMINAR ON CHEMISTRY","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73880232","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}

引用次数: 1