Chemical and Biochemical Engineering Quarterly最新文献_第3页

Effect of Silver Addition on Cu-based Shape Memory Alloys 添加银对铜基形状记忆合金的影响

4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-10-04 DOI: 10.15255/cabeq.2023.2186

L. Liverić, Tamara Holjevac Grgurić, E. Govorčin Bajsić, Marko Kršulja

{"title":"Effect of Silver Addition on Cu-based Shape Memory Alloys","authors":"L. Liverić, Tamara Holjevac Grgurić, E. Govorčin Bajsić, Marko Kršulja","doi":"10.15255/cabeq.2023.2186","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2186","url":null,"abstract":"Shape memory alloys (SMAs) are smart materials with unique properties of super-elasticity and shape memory effect. These properties are the consequence of thermoelastic martensitic transformation, which can occur under thermal or mechanical deformation. Cu-Al-Ag alloys have high temperatures of martensite transformation, unlike other SMAs, which makes them suitable for use in specific applications. In this paper, Cu-10Al-1Ag alloy was prepared by melting pure metals in an electric arc furnace and casting the melt in a cylindrical mold. The microstructure of the as-cast and quenched material was determined by optical microscopy (OM) and scanning electron microscopy (SEM) equipped with energy dispersive analysis (EDS). X-ray diffraction (XRD) analysis was performed to identify crystal phases in the microstructure, while transformation temperatures were determined by differential scanning calorimetry (DSC). The hardness of Cu-Al-Ag SMA was also determined with a microhardness tester. The results showed partially formed martensite in the as-cast state, and fully formed martensite structure, 18R-type, in the quenched Cu-10Al-1Ag alloy.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterization of Sol-gel Derived Cobalt-doped Willemite via 2D Correlation Spectroscopy 溶胶-凝胶衍生钴掺杂Willemite的二维相关光谱表征

4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-10-04 DOI: 10.15255/cabeq.2023.2189

Filip Brleković, Katarina Mužina, Sanislav Kurajica

{"title":"Characterization of Sol-gel Derived Cobalt-doped Willemite via 2D Correlation Spectroscopy","authors":"Filip Brleković, Katarina Mužina, Sanislav Kurajica","doi":"10.15255/cabeq.2023.2189","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2189","url":null,"abstract":"Cobalt blue is one of the world’s most famous blue pigments, but it presents a threat to human health since it is toxic when inhaled or ingested. A safer and environmentally preferable way of obtaining cobalt blue-like pigments is doping of various nontoxic compounds with small amounts of cobalt. In this work, doping of zinc silicate (willemite, Zn 2 SiO 4 ) was carried out with 5, 10, and 15 mol% of Co with the aim of obtaining Zn 2– x Co x SiO 4 solid solution. Thermal properties of sol-gel derived samples were examined with simultaneous differential thermal and thermogravimetric analysis (DTA/TGA), which showed dehydration, decomposition, and burning effects, accompanied with mass loss and willemite crystallization effect at 800 °C. X-ray powder diffraction analysis (XRD) indicated the formation of willemite phase at 800 °C, accompanied with ZnO phase and increase in willemite crystallinity with annealing temperature rise from 800 to 1100 °C. Fourier transform infrared spectroscopy (FTIR) showed characteristic bands for present oxides and their bonds along with adsorbed water and carbon dioxide. Coloura-tion of prepared samples changed with annealing temperature, whereas higher Co concentrations and temperatures accentuated the intense blue colour. Diffuse reflectance spectroscopy (DRS) revealed an increase in absorbance with annealing temperature and specific bands as a result of different Co coordination present in the samples. The 2D correlation analysis of FTIR and UV-Vis spectra of the samples thermally treated at various temperatures was utilized to investigate and correlate the changes in the structure with the rise of the annealing temperature. The obtained correlation facilitated the finding of optimal process parameters for the desired pigment quality","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135592714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Process Parameters on Chitosan-mediated Microalgae Flocculation 工艺参数对壳聚糖介导微藻絮凝的影响

IF 1.5 4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-07-03 DOI: 10.15255/cabeq.2022.2152

S. Akiş, B. Inan, D. Özçimen

引用次数: 0

Converting Waste into Products and Energy Using Complete Circular Economy and the Hydrogen Effect Technique to Reduce Dependence on Natural Gas 利用完全循环经济和氢效应技术将废物转化为产品和能源，减少对天然气的依赖

IF 1.5 4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-07-03 DOI: 10.15255/cabeq.2022.2157

A. Kovač Kralj

引用次数: 0

Effective Biosorption of Phosphate from Water Using Fe(III)-Loaded Pomegranate Peel 负载铁(III)的石榴皮对水中磷酸盐的有效生物吸附

IF 1.5 4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-07-03 DOI: 10.15255/cabeq.2022.2174

N. Bashyal, S. Aryal, R. Rai, P. Lohani, S. K. Gautam, M. R. Pokhrel, B. R. Poudel

{"title":"Effective Biosorption of Phosphate from Water Using Fe(III)-Loaded Pomegranate Peel","authors":"N. Bashyal, S. Aryal, R. Rai, P. Lohani, S. K. Gautam, M. R. Pokhrel, B. R. Poudel","doi":"10.15255/cabeq.2022.2174","DOIUrl":"https://doi.org/10.15255/cabeq.2022.2174","url":null,"abstract":"Removal of phosphate from wastewater is necessary for the safety of public health and environmental protection. The present study used an easily available and affordable biosorbent obtained from the pomegranate peel for the excision of phosphate from water. The biosorption behavior of raw pomegranate peel powder (RPGPP) was found negligible. The RPGPP was further saponified with Ca(OH) 2 followed by Fe(III) loading to obtain Fe(III)-loaded pomegranate peels (Fe(III)-PGPP), which was then employed for the phosphate uptake. Fourier transform infrared spectroscopy (FTIR), energy dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD) were used to characterize the biosorbent. The batch adsorption test was used to evaluate the adsorption viability of biosorbents for removing phosphate from aqueous solution. Fe(III)-PGPP was determined to have a pH PZC of 5.40. The experimental data were best explained by the Langmuir isotherm and pseudo-second-order kinetic model. Fe(III)-PGPP had the largest phosphate biosorption capacity of 99.30 mg g –1 at the opti-mum pH of 3.0 and 2.5 hours of contact time. From the results obtained, Fe(III)-PGPP adsorbent can be regarded as an effective and cost-efficient material for the treatment of phosphate-anion-contaminated water.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42462364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antioxidant Capacity and Corrosion Inhibition Efficiency of Sambucus nigra L. Extract 黑参提取物的抗氧化能力和缓蚀性能

IF 1.5 4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-07-03 DOI: 10.15255/cabeq.2023.2180

Ivana Martinović, G. Zlatić, Z. Pilić, M. Šušak, F. Falak

{"title":"Antioxidant Capacity and Corrosion Inhibition Efficiency of Sambucus nigra L. Extract","authors":"Ivana Martinović, G. Zlatić, Z. Pilić, M. Šušak, F. Falak","doi":"10.15255/cabeq.2023.2180","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2180","url":null,"abstract":"The cyclic voltammogram recorded in the potential range between 0 V and 800 mV with scan rate of 100 mV s −1 was used to determine the measure of antioxidants content (antioxidant capacity) present in Sambucus nigra L. extract. The antioxidant capacity of the extract was 4.06 mg GAE g −1 fw (mg of gallic acid equivalents per gram of fresh weight of the extract). The corrosion inhibition efficiency of Sambucus nigra L. extract on aluminium, copper, and bronze in 3 % NaCl solution was studied by potentiodynamic polarization and electrochemical impedance spectroscopy. Polarization data showed that extract acted as a mixed-type inhibitor, that the corrosion inhibition process was spontaneous physical adsorption (Δ G ≈ –16 kJ mol –1 ) of the extract molecules on metals surfaces and followed Freundlich isotherm. Impedance spectroscopy studies revealed that increasing the concentration of extract reduced the double-layer capacitance and increased the charge transfer resistance. The highest inhibition efficiencies (Cu: ~ 57 %, CuSn14: ~74 % and Al: ~58 %) were achieved for an extract concentration of 1.0 g L –1 .","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43584087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancement of Vanillin Partitioning and Recovery in Nanoparticle-based Aqueous Two-phase System Containing PEG and Dextran Polymers 含PEG和葡聚糖聚合物的纳米颗粒双水相体系中香兰素分配和回收的增强作用

IF 1.5 4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-07-03 DOI: 10.15255/cabeq.2023.2201

M. Nouri, Shahla Shahriari, Pegah Nabi, G. Pazuki

{"title":"Enhancement of Vanillin Partitioning and Recovery in Nanoparticle-based Aqueous Two-phase System Containing PEG and Dextran Polymers","authors":"M. Nouri, Shahla Shahriari, Pegah Nabi, G. Pazuki","doi":"10.15255/cabeq.2023.2201","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2201","url":null,"abstract":"Vanillin, widely utilized in the food, medicinal, and pharmaceutical industries, re-quires an improved extraction process that is cost-effective and environmentally friendly to meet the growing industrial demand. To tackle this challenge, we conducted an inves-tigation on a nanoparticle-based aqueous two-phase system (ATPS), incorporating polyethylene glycol (PEG) and dextran (DEX). The primary objective was to develop an ATPS that is non-alkaline, operates under mild environmental conditions, and is both non-toxic and cost-effective. The study focused on identifying a suitable nanoparticle that could improve the partitioning of vanillin in ATPS and facilitate economically favorable separation processes. Various nanoparticles were evaluated as additives to enhance vanillin partitioning. The study explores the influence of parameters, such as polymer weight percentages and DEX molecular weight on vanillin partitioning and recovery percentage. Additionally, the impact of incorporating different nanoparticles was assessed in the optimized system composed of 6.5 wt% PEG6000 and 7.8 wt% DEX15000. Results indicate that the addition of only 0.001 g of silver nanoparticles to the optimal system improved the partition coefficient by 42 % and the vanillin recovery percentage by ap-proximately 8 %","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49396060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Degradation of Lignin-containing Wastewaters in the Presence of Different Microbial Consortia 不同菌群对含木质素废水的降解效果比较

IF 1.5 4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-07-03 DOI: 10.15255/cabeq.2023.2177

Wen Zhang, Y. Lu, M. Wang

{"title":"Comparison of Degradation of Lignin-containing Wastewaters in the Presence of Different Microbial Consortia","authors":"Wen Zhang, Y. Lu, M. Wang","doi":"10.15255/cabeq.2023.2177","DOIUrl":"https://doi.org/10.15255/cabeq.2023.2177","url":null,"abstract":"Lignin-containing wastewater treatment by different microbial consortia were studied in this research. The special microbial consortia (J-6 and J-1) obtained from decayed wooden relics were selected. The bacteria of original microbial consortium J-6 mainly included Shinella , Cupriavidus and Bosea . The bacteria of original microbial consortium J-1 mainly included Serratia and Yersinia . The fungi of J-6 and J-1 were dominated by Saccharomycetales. The performances of two microbial consortia in wastewater treatment were compared, and the changes in community structure were analyzed to study the relationship between microbial consortium structure and degradation efficiency. For the treatment of model Chinese medicine wastewater, the optimal degradation conditions were treatment temperature of 30 °C, initial pH of 7, dissolved oxygen of 2 mg L –1 , and treatment time of 96 h. The COD (Chemical Oxygen Demand) removal efficiency reached 95.25 % by J-1. For the treatment of model papermaking wastewater, the optimal degradation conditions were treatment temperature of 30 °C, pH of 5, dissolved oxygen of 3 mg L –1 , nitrogen source concentration of 0.1 g L –1 , and treatment time of 120 h. The COD removal efficiency reached 86.8 % by J-6. Bacteria played a significant role in the degradation of lignin-containing wastewater, and the bacterial consortium abundance may promote the degradation of organic substances in the wastewater. The dominant strains were different in Chinese medicine wastewater and paper-making wastewater systems. The correlation between microorganisms and the difference in the abundance of bacteria groups may be the reason for the different performances of the two microbial consortia in treating different lignin-containing wastewaters.","PeriodicalId":9765,"journal":{"name":"Chemical and Biochemical Engineering Quarterly","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67064166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of Solophenyl Red 3BL Dye from Textile Effluents by Adsorption Using a Natural Adsorbent Oxalis pes-caprae L. 天然吸附剂牛黄吸附去除纺织废水中的Solphenyl Red 3BL染料。

IF 1.5 4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-04-09 DOI: 10.15255/cabeq.2022.2165

Amina Ben Bouabdallah, Fadia Mazari, Roumeissa Sifi

引用次数: 0

An Advanced Control Strategy for the Evaporation Section of An Integrated First- and Second-Generation Ethanol Sugarcane Biorefinery 第一代和第二代乙醇-甘蔗一体化生物精炼厂蒸发工段的先进控制策略

IF 1.5 4区生物学

Chemical and Biochemical Engineering Quarterly Pub Date : 2023-04-09 DOI: 10.15255/cabeq.2022.2048

E. Emori, M. Ravagnani, C. Costa

引用次数: 0