3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)最新文献_第3页

Preparation and physical properties of modified cassava starches 改性木薯淀粉的制备及其物理性质

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0062184

D. Sondari, Ajeung Arum Sari, A. A. Septevani, R. Ningrum, D. A. Pramasari, D. Burhani, Rahmawati Putri

{"title":"Preparation and physical properties of modified cassava starches","authors":"D. Sondari, Ajeung Arum Sari, A. A. Septevani, R. Ningrum, D. A. Pramasari, D. Burhani, Rahmawati Putri","doi":"10.1063/5.0062184","DOIUrl":"https://doi.org/10.1063/5.0062184","url":null,"abstract":"This study was conducted to analyze the physical properties of cassava starch crosslinked with sodium trimetaphosphate (STMP) and used sodium hydroxide as a catalyst. The effect of crosslinker and catalyst (Starch/STMP/Catalyst) on thermal analysis, morphology, and structure crystal were investigated. The physical properties of native and modified cassava starch were also comparatively studied. Modified cassava starch was produced by adding different amounts of sodium trimetaphosphate (0.125, 0.25, and 0.5 % w/w) and catalyst of sodium hydroxide (0.5 and 1.0% w/w) into a reactor in water bath hotplate at 70 °C and 300 rpm for an hour. There are different diffraction patterns between the native cassava starch (NCS) and crosslink cassava starch (CLCS) samples. The sample of CLCS 1 (B); CLCS 2 (C) presented small new peaks in the regions of 32°, 38° and 41° (2θ), which may be related to changes in a three-dimensional network of the chains. It was indicated that the crosslinking process occurred successfully. The native cassava starch sample showed a smooth surface with rounded and bell shape granules. The samples CLCS presented loss of grain format, distorted and wrinkled surfaces with some rupture to the granules.","PeriodicalId":250907,"journal":{"name":"3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130717426","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: 0

Biodecolorization of methylene blue by mixed cultures of brown-rot fungus Gloeophyllum trabeum and bacterium Bacillus subtilis 褐腐菌黄球藻和枯草芽孢杆菌混合培养对亚甲基蓝的生物脱色

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0062270

Adi Setyo Purnomo, Alya Awinatul Rohmah, H. D. Rizqi, H. Putro, R. Nawfa

{"title":"Biodecolorization of methylene blue by mixed cultures of brown-rot fungus Gloeophyllum trabeum and bacterium Bacillus subtilis","authors":"Adi Setyo Purnomo, Alya Awinatul Rohmah, H. D. Rizqi, H. Putro, R. Nawfa","doi":"10.1063/5.0062270","DOIUrl":"https://doi.org/10.1063/5.0062270","url":null,"abstract":"This study reported methylene blue (MB) dye decolorization by using mixed consortium culture, brown-rot fungus (BRF) Gloeophyllum trabeum which is known as degradative fungus with bacterium Bacillus subtilis addition. B. subtilis were added into G. trabeum cultures at variation 2, 4, 6, 8, and 10 mL and incubated statically (1 mL = 9.47 × 108 CFU). All of mixed cultures had ability to decolorize MB (100 mg/L) in potato dextrose broth (PDB) medium during incubation process at 30 °C for 7 days. The addition of 10 mL B. subtilis in fungus culture showed the highest of MB decolorized, approximately 82%, while using G. trabeum culture only was approximately 11%. The metabolites of MB biodecolorization were identified and characterized by LC-TOF/MS, which were N-(7-(dimethylamino)-1-hydroxy-3H-phenothiazin-3-ylidene)-N-methylmethanaminium; 2-amino-5-(dimethylamino)-3-((3-(dimethylamino) phenyl) sulfinyl) phenol; and N-7-(7-(dimethylamino)-1,4,6,9-tetrahydroxy-3H-phenothiazin-3-ylidene)-N-methylmethanaminium. Those results could indicate that the mixed consortium culture of BRF G. trabeum with B. subtilis addition were efficient for dye wastewater treatment.","PeriodicalId":250907,"journal":{"name":"3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133986366","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

Modification of carbon foam with gold nanoparticles and 4-mercaptobenzoic acid to enhance its electron transfer rate 用金纳米粒子和4-巯基苯甲酸改性泡沫碳以提高其电子传递速率

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0062212

T. A. I. Aliyah, J. Gunlazuardi

引用次数: 0

Green analysis impact in the determination of iron (Fe) against validation on well water 绿色分析对井水中铁(Fe)测定的影响

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0062200

T. E. Purbaningtias, Z. 'Afifah, Bayu Wiyantoko, Puji Kurniawati

{"title":"Green analysis impact in the determination of iron (Fe) against validation on well water","authors":"T. E. Purbaningtias, Z. 'Afifah, Bayu Wiyantoko, Puji Kurniawati","doi":"10.1063/5.0062200","DOIUrl":"https://doi.org/10.1063/5.0062200","url":null,"abstract":"The application of green analysis in the determination of Fe is done by minimizing the amount of material from the standard method (SNI-6989-4-2009) to half, a quarter, and a fifth part. The iron (Fe) test results obtained according to the standard, half, quarter and one-fifth methods respectively were 0.2098; 0.2418; 0.2194; and 0.2080 ppm. These results indicate that well water is safe for consumption because it is below the threshold determined by the Regulation of the Minister of Health of the Republic of Indonesia No. 492 of 2010. Validation of atomic absorption spectrophotometer (SSA) method for determining iron content (Fe) which includes linearity, Limit of Detection (LOD), Limit of Quantification (LOQ), precision, and accuracy shows good results for all variations in composition because following quality control requirements that exist in the standard method. But the one-way ANOVA test results for the four variations showed a significant difference. Composition following standard methods and one-fifth of the parts showed no different results. Whereas the variation in the composition of half and a quarter showed different results from the composition of standard testing. This is due to the composition of half and a quarter parts, the amount of HNO3 used is not integers (in decimal numbers) so that it affects the accuracy of the amount taken.","PeriodicalId":250907,"journal":{"name":"3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116185658","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: 0

Analytical method validation for cobalt determination on organic fertilizer 有机肥中钴含量测定方法的验证

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0063062

Puji Kurniawati, T. E. Purbaningtias, Bayu Wiyantoko, Ganissintya Dewi

{"title":"Analytical method validation for cobalt determination on organic fertilizer","authors":"Puji Kurniawati, T. E. Purbaningtias, Bayu Wiyantoko, Ganissintya Dewi","doi":"10.1063/5.0063062","DOIUrl":"https://doi.org/10.1063/5.0063062","url":null,"abstract":"Cobalt determination has been carried out as one of the micro elements in organic fertilizer. The analytical method for the determination of cobalt used SNI 19-7030-2004 about compost from organic domestic waste that has been modified. Sample preparation was carried out by the wet ashing method using 65% nitric acid and perchloric acid. The wet ashing was using the Kjedhal tube for 12 hours. Cobalt determination was carried out using the AAS instrument at λ = 240.7 nm. Validation parameters used were linearity, Limit of Detection (LOD), Limit of Quantitation (LOQ), precision and accuracy. Cobalt content in solid organic fertilizer was 10.32±4.06 mg/kg. Linearity used cobalt standard solution of 0 – 5 mg/L and it produced regression equation with R2 = 0.9971. The Limit of Detection (LOD) and the Limit of Quantitation (LOQ) in this study were 0.015 and 0.029 mg/L. The precision was calculated by the repeatability method with the result of% RSD = 1.21% (≤2%). Accuracy used recovery of spiked matrix. The average% recovery result from 6 repetitions is 90.7% (85-115%). All the validation parameters of the method are in the acceptability range so that this modification method can be used as a routine method in determining cobalt levels in solid organic fertilizer.","PeriodicalId":250907,"journal":{"name":"3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124756600","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: 0

Biosorption of cadmium (II) in aqueous solutions using green alga biomass modified by calcium 钙修饰的绿藻生物量对镉(II)水溶液的生物吸附

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0064240

Suwari, Paulus Bhujab, Herry Zadrak Kottac

{"title":"Biosorption of cadmium (II) in aqueous solutions using green alga biomass modified by calcium","authors":"Suwari, Paulus Bhujab, Herry Zadrak Kottac","doi":"10.1063/5.0064240","DOIUrl":"https://doi.org/10.1063/5.0064240","url":null,"abstract":"Green algae biomass modified by Calcium has been used as a sorbent to study the uptake of Cadmium(II) from aqueous solution. The study was conducted at the Laboratory scale. The main aims of the study were to know the level of Biosorbent-Ca content and Langmuir as well as Freundlich sorption capacities at optimum condition. Initially the study began by testing the sorption capacity and optimum efficiency of the Biosorbent-Ca for Cd(II). Then continued by testing their sorption isotherm models, capacity, and followed by FTIR spectra analysis. The performed Cd(II) concentration was between 50 to 200 mg/L at pH 5 for each 1.0 g Biosorben-Ca/L. The results shown that the optimum Cd(II) sorption capacity was obtained at 73.48 mg/g Biosorbent-Ca, while the efficiencies reached before holding sorption equilibrium was 79.06%. Furthermore, the maximum Langmuir qm constants for Cd(II) was 76.92 mg/g while KL levels=0.167 L /mg. Subsequently, the Freundlich constants: KF = 12.27 mg/g and n=1.59 g/L. The value of 1/n <1 strongly supporting the suitability of Freundlich models in sorption process. The results of FTIR spectra showed that the functional groups of amines, carbonyl and hydroxyl were playing major roles as active sites in the biosorption process of Cd(II) by biosorbent of green algae modified Calcium.","PeriodicalId":250907,"journal":{"name":"3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124012412","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: 0

Chitosan microparticles for in vitro release of acetogenins extracted from Annona muricata L. leaves 壳聚糖微颗粒对番荔枝叶乙酰原素体外释放的研究

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0062455

E. Krisanti, F. Fauzia, K. Mulia

引用次数: 0

Synthesis and characterization of nickel immobilized on aminated Periodic Mesoporous Organosilica 胺化周期介孔二氧化硅固定化镍的合成与表征

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0062169

I. Pertiwi, D. U. C. Rahayu, Y. Krisnandi

{"title":"Synthesis and characterization of nickel immobilized on aminated Periodic Mesoporous Organosilica","authors":"I. Pertiwi, D. U. C. Rahayu, Y. Krisnandi","doi":"10.1063/5.0062169","DOIUrl":"https://doi.org/10.1063/5.0062169","url":null,"abstract":"Periodic Mesoporous Organosilica (PMO) is a superior mesoporous silica material which has a meso-size and ordered pore structure as well as a large surface area. These properties support PMO to be applied as a metal catalyst support. Nickel is a metal that is widely used as a catalyst in various reactions, since this metal has d orbitals that are not fully filled. Therefore, it could actively interacts with reactants and facilitate the formation of intermediates on the surface of the catalyst. In this study, biphenylene-bridged PMO (Bph-PMO) was synthesized using 4,4'-bis(triethoxysilyl) biphenyl precursor in basic conditions, continued with amine functionalization through nitration and amination to produce NH2− Bph-PMO. Immobilization of nickel was conducted using Ni(acac)2 as precursor in toluene as solvent to obtain Ni/NH2− Bph-PMO. Characterization with XRD shows that functionalization of amine groups as well as immobilization of Ni does not change the periodic structure in Bph-PMO, with diffraction peaks (2θ) observed at 7.43°, 14.93°, 22.54°, 30.22°, and 38.10°. TEM analysis shows mesoporous crystal-like structure of NH2−Bph-PMO. Morphological characterization with SEM reveals the slightly rough and spherical surface of NH2−Bph-PMO and Ni/NH2−Bph-PMO with average particle size of 345 nm and 420 nm, respectively. Nickel complex was successfully immobilized on NH2−Bph-PMO with 2.8 % metal loadings, as confirmed with EDX analysis. FTIR analysis shows that nitration and amination processes were successfully performed as confirmed by the presence of new peaks at 1563 cm-1 and 1352 cm-1 for NO2−Bph-PMO, and peak at 1616 cm-1 for NH2−Bph-PMO. Immobilization of nickel on NH2−Bph-PMO generates new peak at 1525 cm-1 which indicates that C=N bond formed due to Schiff base condensation.","PeriodicalId":250907,"journal":{"name":"3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)","volume":"299 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116259623","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: 0

A comprehensive XRD analysis of CaCO3 from Tablolong Beach sand as a potential smart material resource Tablolong Beach沙滩CaCO3作为一种潜在的智能材料资源的综合XRD分析

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0062186

A. Z. Johannes, R. Pingak

{"title":"A comprehensive XRD analysis of CaCO3 from Tablolong Beach sand as a potential smart material resource","authors":"A. Z. Johannes, R. Pingak","doi":"10.1063/5.0062186","DOIUrl":"https://doi.org/10.1063/5.0062186","url":null,"abstract":"Smart materials are materials that are responsive and adaptive to the environment. In recent years, the need for smart material continues to grow. Calcium Carbonate (CaCO3) is one of the potential candidates for the development of smart materials. Results of our previous study in 2018 showed that the dominant component of Tablolong Beach was CaCO3. In this research, a comprehensive XRD analysis of CaCO3 contained in Tablolong Sand is carried out to find out more about the properties of CaCO3 crystals formed directly in nature. Results showed that Aragonite and Calcite were the dominant crystalline phases of CaCO3 in the sand with a total of 95.61% CaCO3 content. Around 4.39% of SiO2 in its Quartz crystal phase was also found in the sand. In addition, the crystallite size of Aragonite and Calcite crystals was calculated by four different methods and found to range from 26.7 nm to 148 nm. Microstrain of CaCO3 crystals was also successfully obtained in three different ways from (in 10−3) 0.3 to 7.7. Finally, the crystal lattice parameters of the Aragonite orthorombic structure were a=0.496281±0.000050 nm, b=0.797216±0.000091 nm and c=0.574605±0.000055 nm, while those of Calcite hexagonal structure were a=b=0.49199±0.00021 nm and c=0.54016±0.00039 nm.","PeriodicalId":250907,"journal":{"name":"3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129407624","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

Coal ash chance to supply rare Earth elements for present and future: An overview 煤灰为现在和未来提供稀土元素的机会:概述

3RD INTERNATIONAL CONFERENCE ON CHEMISTRY, CHEMICAL PROCESS AND ENGINEERING (IC3PE) Pub Date : 2021-09-01 DOI: 10.1063/5.0062483

Suganal

引用次数: 0