Bulletin of Chemical Reaction Engineering & Catalysis最新文献

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Synthesis of ZnO-Fe3O4 Magnetic Nanocomposites through Sonochemical Methods for Methylene Blue Degradation 用声化学方法合成ZnO-Fe3O4磁性纳米复合材料降解亚甲基蓝
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-09-15 DOI: 10.9767/bcrec.17.3.15492.650-660
N. Saridewi, Sri Komala, A. Zulys, S. Nurbayti, Latifah Tulhusna, A. Adawiah
{"title":"Synthesis of ZnO-Fe3O4 Magnetic Nanocomposites through Sonochemical Methods for Methylene Blue Degradation","authors":"N. Saridewi, Sri Komala, A. Zulys, S. Nurbayti, Latifah Tulhusna, A. Adawiah","doi":"10.9767/bcrec.17.3.15492.650-660","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15492.650-660","url":null,"abstract":"Textile industry waste can pollute the aquatic environment because it contains dye contaminants with very stable properties that are difficult to degrade naturally. However, dye contaminants degradation can be carried out by photodegradation using ZnO-Fe3O4 magnetic nanocomposite photocatalysts. This study aims to synthesize ZnO-Fe3O4 magnetic nanocomposite through a sonochemical method. Then measure their photocatalytic activity in methylene blue degradation. The best ZnO-Fe3O4 magnetic nanocomposite is made of ZnO:Fe3O4 mass ratio of 4:1 with a crystal size of 31.058 nm, a hexagonal crystal phase and a particle size of 173.23 nm. The ZnO-Fe3O4 magnetic nanocomposites (4:1) provides optimum degradation capacity of methylene blue under halogen lamp irradiation of 99.56 mg/g at pH 13. Furthermore, the ZnO-Fe3O4 magnetic nanocomposites had good stability in 10 cycles reaction with a degradation capacity of 99.24-99.75 mg/g. The photocatalytic degradation of methylene blue by ZnO-Fe3O4 occurs through the formation of free radical species with hydroxyl radicals as the dominant species that play an important role in the degradation process. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73635700","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
Insights into the Titania (TiO2) Photocatalysis on the Removal of Phthalic Acid Esters (PAEs) in Water 二氧化钛(TiO2)光催化去除水中邻苯二甲酸酯(PAEs)的研究进展
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-09-14 DOI: 10.9767/bcrec.17.3.15385.608-626
Norfarahim Mohd Tubillah, S. Chandren
{"title":"Insights into the Titania (TiO2) Photocatalysis on the Removal of Phthalic Acid Esters (PAEs) in Water","authors":"Norfarahim Mohd Tubillah, S. Chandren","doi":"10.9767/bcrec.17.3.15385.608-626","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15385.608-626","url":null,"abstract":"In this era of globalization, plastic is regarded as one of the most versatile innovations, finding its uses ranging from packaging, automotive, agriculture, and construction to the medical and pharmaceutical industries. Unfortunately, the single-use nature of plastics leads to ecological and environmental problems. Among conventional disposal management of plastic waste are landfilling dumping, incineration, and recycling. However, not all plastic waste goes into disposal management and ends up accumulating in lakes, rivers, and seas. In the aquatic environment, the action of photochemical weathering plastics has resulted in the release of chemical additives such as phthalic acid esters (PAEs), an important plasticizer added to plastic products to improve their softness, flexibility, and durability. Nowadays, PAEs have been ubiquitously detected in our environment and numerous organisms are exposed to PAEs to some extent. As PAEs carry endocrine disruptive and carcinogenicity properties, an urgent search for the development of an efficient and effective method to remove PAEs from the environment is needed. As a viable option, titania (TiO2) photocatalysis is a promising tool to combat the PAEs contamination in our environment owing to its high photocatalytic activity, cost-effectiveness, and its ability to totally mineralize PAEs into carbon dioxide and water. Hence, this paper aims to highlight the concerning issue of the contamination of PAEs in our aquatic environments and the summary of the removal of PAEs by TiO2 photocatalysis. This review concerning the significance of knowledge on environmental PAEs would hopefully spark huge interest and future development to tackle this plastic-associated pollutant. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76170367","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
Silicate Scaling Formation: Impact of pH in High-Temperature Reservoir and Its Characterization Study 高温储层pH对硅酸盐结垢层的影响及其表征研究
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-09-12 DOI: 10.9767/bcrec.17.3.15290.661-682
R. Sazali, K. Sorbie, L. Boak, Nurshazwani Shuhada Al Badri, H. Veny, Farah Hanim Ab Hamid, M. Z. Zainal Abidin
{"title":"Silicate Scaling Formation: Impact of pH in High-Temperature Reservoir and Its Characterization Study","authors":"R. Sazali, K. Sorbie, L. Boak, Nurshazwani Shuhada Al Badri, H. Veny, Farah Hanim Ab Hamid, M. Z. Zainal Abidin","doi":"10.9767/bcrec.17.3.15290.661-682","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15290.661-682","url":null,"abstract":"Silicate scaling tends to form and be aggravated during high pH Alkaline Surfactant Polymer (ASP) floods and this silicate scale deposition affects oil production. Hence, it is important to examine the conditions that lead to silicate scale forming. The severity of the silicate scaling reaction, the type and morphology of silica/silicate scale formed in an experimental ASP flood were studied for pH values 5, 8.5, and 11, whilst the temperature was kept constant at 90 ℃. In addition, the impact of calcium ion was studied and spectroscopic analyses were used to identify the extent of scaling reaction, morphology type and the functional group present in the precipitates. This was performed using imagery of the generated precipitates. It was observed that the silica/silicate scale is most severe at the highest pH and Ca:Mg molar ratios examined. Magnesium hydroxide and calcium hydroxide were observed to precipitate along with the silica and Mg-silicate/Ca-silicate scale at pH 11. The presence of calcium ions altered the morphology of the precipitates formed from amorphous to microcrystalline/crystalline. In conclusion, pH affects the type, morphology, and severity of the silica/silicate scale produced in the studied scaling system. The comprehensive and conclusive data showing how pH affects the silicate scaling reaction reported here are vital in providing the foundation to further investigate the management and prevention of this silicate scaling. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74768368","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
Thermodynamic Study of One-step Production from Isobutene to Methyl Methacrylate 异丁烯一步法制甲基丙烯酸甲酯的热力学研究
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-09-10 DOI: 10.9767/bcrec.17.3.15574.590-607
Lik Quan Lau, S. Y. Lai, Haiyan Li, C. L. Ngan, Mahashanon Arumugam, M. Nurhadi
{"title":"Thermodynamic Study of One-step Production from Isobutene to Methyl Methacrylate","authors":"Lik Quan Lau, S. Y. Lai, Haiyan Li, C. L. Ngan, Mahashanon Arumugam, M. Nurhadi","doi":"10.9767/bcrec.17.3.15574.590-607","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15574.590-607","url":null,"abstract":"Methyl methacrylate (MMA) has emerged as an essential industrial monomer. However, the toxic by-production and shortage supply of MMA in the global market has gained great attention. Herein, a one-step synthesis to produce MMA from isobutene via a direct oxidative esterification process has been demonstrated to curb the aforementioned downsides. Thermodynamic analysis via Gibbs free energy minimization method proved the feasibility of this route via the equilibrium constant. Despite tert-butanol and isobutane showed higher equilibrium constant than isobutene, they should be avoided. Isobutane is highly flammable while the precursor of tert-butanol is exorbitant. Thus, isobutene was selected for the equilibrium compositions screening. Isobutene conversion was 90% and 15% MMA yield at 700 °C and IBN: O2: MeOH ratio with 1:7:1. This route is mainly limited by the generation of side reactions from the reaction of CH3OH and O2. By varying the feedstock ratio at 1:2:1, the MMA yield increased to ~25%. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82349627","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
The Combined Effect of Bubble and Photo Catalysis Technology in BTEX Removal from Produced Water 气泡与光催化技术在采出水中脱除BTEX中的联合效果
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-09-02 DOI: 10.9767/bcrec.17.3.15367.577-589
Marwah A. Al-Nuaim, Asawer A. Al-Wasiti, Zainb Y. Shnain, Abbas K. Al-Shalal
{"title":"The Combined Effect of Bubble and Photo Catalysis Technology in BTEX Removal from Produced Water","authors":"Marwah A. Al-Nuaim, Asawer A. Al-Wasiti, Zainb Y. Shnain, Abbas K. Al-Shalal","doi":"10.9767/bcrec.17.3.15367.577-589","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15367.577-589","url":null,"abstract":"Among the several ways used in wastewater treatment, the photocatalysis process is a more novel and alternative process that is increasingly employed in recent years. This work aims to improve the performance of the photocatalyst process by using air bubbles in removing the BTEX from produced water as an indicator of process efficiency. The study also shows the effect of influencing factors (pH and residence time) on the photocatalysis process. The study was done in a rectangular column with dimensions of 200 mm width, 30 mm depth, and 1500 mm height. Commercial titanium oxide (TiO2) coated on a plate by the varnish was used as a source of the photocatalyst. The experiment was carried out under different values of gas flow rate (0-3 L/min) to evaluate its effect on the photocatalyst process, the effect of other variables of pH (3-11), and irradiation time (30-120) min was also studied. A new method of the coating was adopted by using an alumina plate with varnish as an adhesive. The characteristics results show that the coated plate has hydrophilic properties and that there is no significant change in the crystal structure of the TiO2 nanoparticles and the varnish before and after 60 h of the photocatalytic process, indicating that the plate is still effective after 60 h usage under different conditions. The results also show that the introduction of air bubbles enhances the removal efficiency of BTEX significantly and the best removal effectiveness of BTEX was 93% when pH = 5 after 90 min and 90% when pH = 3 after 120 min. The removal rate also reached 86% when pH = 7 after 120 min all at a flow rate of 3 L/min. The percentage of removal decreased at pH = 9 and 11, reaching 64% and 50%, respectively after 120 min and a flow rate of 3 L/min. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87325725","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: 3
Comparative Adsorption Performance of Carbon-containing Hydroxyapatite Derived Tenggiri (Scomberomorini) and Belida (Chitala) Fish Bone for Methylene Blue 含碳羟基磷灰石来源的腾基里(Scomberomorini)和Belida (Chitala)鱼骨对亚甲基蓝的吸附性能比较
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-09-01 DOI: 10.9767/bcrec.17.3.15303.565-576
S. Lestari, M. Nurhadi, Ratna Kusuma Wardani, E. Saputro, Retno Pujisupiati, Nova Sukmawati Muskita, Nezalsa Fortuna, A’an Suri Purwandari, Fahria Aryani, S. Y. Lai, Hadi Nur
{"title":"Comparative Adsorption Performance of Carbon-containing Hydroxyapatite Derived Tenggiri (Scomberomorini) and Belida (Chitala) Fish Bone for Methylene Blue","authors":"S. Lestari, M. Nurhadi, Ratna Kusuma Wardani, E. Saputro, Retno Pujisupiati, Nova Sukmawati Muskita, Nezalsa Fortuna, A’an Suri Purwandari, Fahria Aryani, S. Y. Lai, Hadi Nur","doi":"10.9767/bcrec.17.3.15303.565-576","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15303.565-576","url":null,"abstract":"The utilization of fishbone as the carbon source for methylene blue adsorption has been successfully studied. Fishbone was prepared from two kinds of fish such as marine fisheries (ex. Tenggiri) and freshwater fisheries (ex. Belida). The carbons were prepared by carbonation of fishbone powder at  500 °C for 2 h. Physical properties of carbons were characterized using Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), wavelength dispersive X-ray fluorescence (WDXRF), Scanning Electron Microscope (SEM), and hydrophobicity. The carbons were utilized as the adsorbent for removing methylene blue by varying the contact time, initial dye concentration, and temperature. It is concluded that both carbons can very good adsorb the methylene blue. The adsorption performance of carbon (TFC) from Tenggiri fish is better than carbon (BFC) from Belida fish. The adsorption was well fitted with the Langmuir adsorption model (R2 ~ 0.998) and the pseudo-second-order model. This indicated that the dye molecules were adsorbed on the surface-active site of carbon via chemical binding, forming an adsorbate monolayer. Thermodynamic parameters, including the Gibbs free energy (ΔG), enthalpy (ΔH), and entropy (ΔS), indicated that the adsorption of methylene blue onto the carbon from fishbone was spontaneous. Thus, carbon from fishbone can be applied as a low-cost adsorbent to treat industrial effluents contaminated with methylene blue. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91082799","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
Catalytic Dye Oxidation over CeO2 Nanoparticles Supported on Regenerated Cellulose Membrane 再生纤维素膜负载CeO2纳米颗粒催化染料氧化
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-08-30 DOI: 10.9767/bcrec.17.3.15384.554-564
T. Thuy, Dinh Ngoc Duong, Nguyen Quynh Vi, Nguyen Duc Duong, Tran Duc Thinh, Ng. Bang, P. H. Vuong, Nguyen Ngoc Mai
{"title":"Catalytic Dye Oxidation over CeO2 Nanoparticles Supported on Regenerated Cellulose Membrane","authors":"T. Thuy, Dinh Ngoc Duong, Nguyen Quynh Vi, Nguyen Duc Duong, Tran Duc Thinh, Ng. Bang, P. H. Vuong, Nguyen Ngoc Mai","doi":"10.9767/bcrec.17.3.15384.554-564","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15384.554-564","url":null,"abstract":"A novel regenerated cellulose (RC) membrane containing cerium oxide (CeO2) nanoparticles is described in detail. In this work, CeO2 nanoparticles with high surface area and mesoporosity were prepared by a modified template-assisted precipitation method. Successful synthesis was achieved using cerium nitrate as a precursor, adjusting the final pH solution to around 11 by ammonium hydroxide and ethylene diamine, and annealing at 550 °C for 3 hours under a protective gas flow. This resulted in a surface area of 55.55 m².g–1 for the nanoparticles. The regenerated cellulose membrane containing CeO2 particles was synthesized by the novel and environmentally friendly method. The catalyst CeO2 and cellulose/CeO2 membrane were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Electron paramagnetic resonance (EPR), and Brunauer-Emmett-Teller (BET) measurements. The g-value of 2.276 has confirmed the presence of the surface superoxide species of CeO2 nanoparticles in EPR. The photocatalytic activity of the catalyst and the membrane containing the catalyst was evaluated through the degradation of methylene blue under visible light irradiation by UV-VIS measurements. The cellulose/CeO2 membrane degraded 80% of the methylene blue solution in 120 minutes, showing a better photocatalytic activity than the CeO2 catalyst, which degraded approximately 62% in the same period. It has been proven that the RC membrane is not only a good transparent supporting material but also a good adsorption for high-performance of CeO2 catalyst. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83246549","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
Investigating the Interaction between Methanol and the Heulandite-type Zeolite using First Principle Molecular Dynamic 用第一性原理分子动力学研究甲醇与heullandite型沸石的相互作用
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-08-26 DOI: 10.9767/bcrec.17.3.15169.542-553
Fiska Dewi Wulandhani, F. Pambudi
{"title":"Investigating the Interaction between Methanol and the Heulandite-type Zeolite using First Principle Molecular Dynamic","authors":"Fiska Dewi Wulandhani, F. Pambudi","doi":"10.9767/bcrec.17.3.15169.542-553","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15169.542-553","url":null,"abstract":"The interaction between methanol and the Heulandite-type zeolite has been unveiled to give an atomic scale detail regarding the catalytic activity of this zeolite for methanol conversion. The study was carried out by first principle molecular dynamics to get an insight into the structure and electronic behaviour of methanol inside the zeolite structure at different temperatures. The behaviour of methanol was studied when the location of the proton of Bronsted acid sites was varied to give both possible direct and less interaction with methanol. The results show that methanol interacts with the proton from zeolite to give a cationic species of [CH3OH2]+ both in 300K and 573K conditions. However, when the proton is located at different location far from possible interaction with methanol, the formation of a cationic species is hindered. This study provides an insight into the design of Heulandite type zeolite to give a catalytic activity toward methanol transformation.","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79235208","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
Biomass Valorization to Chemicals over Cobalt Nanoparticles on SBA-15 SBA-15上钴纳米颗粒对化学物质的生物质增值作用
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-08-03 DOI: 10.9767/bcrec.17.3.15160.533-541
W. Trisunaryanti, T. Triyono, Elizabeth Selia Nandini, E. Suarsih
{"title":"Biomass Valorization to Chemicals over Cobalt Nanoparticles on SBA-15","authors":"W. Trisunaryanti, T. Triyono, Elizabeth Selia Nandini, E. Suarsih","doi":"10.9767/bcrec.17.3.15160.533-541","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.15160.533-541","url":null,"abstract":"A series of heterogeneous catalysts based on cobalt supported on SBA-15 were prepared through wet impregnation and co-impregnation assisted by ethylene glycol (EG) methods. The cobalt oxide catalysts generated after the drying and calcination process were denoted as CoO/SBA-15w and CoO/SBA-15c for a wet- and co-impregnation method, respectively. Subsequent to the reduction process, the reduced cobalt catalysts were obtained and denoted as Co/SBA-15w and Co/SBA-15c. The TEM images revealed the catalysts prepared through these methods show very clear distinctions that the catalyst prepared by wet impregnation shows large aggregates of cobalt particles on the external surface of SBA-15 due to their inability to enter the channels. The catalysts were evaluated on the hydrocracking of pyrolyzed -cellulose as a biomass model. The results showed that the reduced cobalt-based catalysts are having higher conversion value and selectivity towards the 2-furancarboxaldehyde reached ca. 20%. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA   License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89574165","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
High Selectivity and Stability Structure of Layered Double Hydroxide-Biochar for Removal Cd(II) 层状双氢氧化物-生物炭去除Cd(II)的高选择性和稳定结构
Bulletin of Chemical Reaction Engineering & Catalysis Pub Date : 2022-07-06 DOI: 10.9767/bcrec.17.3.14288.520-532
N. Palapa, P. M. S. B. Siregar, A. Wijaya, T. Taher, A. Lesbani
{"title":"High Selectivity and Stability Structure of Layered Double Hydroxide-Biochar for Removal Cd(II)","authors":"N. Palapa, P. M. S. B. Siregar, A. Wijaya, T. Taher, A. Lesbani","doi":"10.9767/bcrec.17.3.14288.520-532","DOIUrl":"https://doi.org/10.9767/bcrec.17.3.14288.520-532","url":null,"abstract":"Composite M2+/Al-BC (Ca/Al-BC, Cu/Al-BC, and Ni/Al-BC) have been successfully synthesized. Composite and pristine materials were used as adsorbents of cadmium(II) [Cd(II)] in an aqueous solution. Firstly the performance of composite and pristine materials was evaluated by reusability properties until five cycles adsorption process followed with a determination of isotherms and adsorption thermodynamic properties. The results show composite has ten-fold surface area properties than starting materials. The adsorption capacities of CaAl-BC, CuAl-BC, and NiAl-BC at a temperature of 333 K were 156.250 mg/g, 149.254 mg/g, and 208.333 mg/g, respectively. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). ","PeriodicalId":9366,"journal":{"name":"Bulletin of Chemical Reaction Engineering & Catalysis","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79957882","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
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