N-doped porous carbon with reasonable pore size distribution is conducive to improving low specific capacitance and low ion transport efficiency. Natural N-doped hierarchical porous carbon (NNHPC) was synthesized by microwave-assisted heating using kapok tree and chlorella vulgaris as raw materials. CaO was used as a template to extend the pore channels and simultaneously enhance the retention of N atoms in NNHPC. The pyrolysis properties of the samples and surface functional groups of NNHPC were analyzed, revealing that CaO enhanced the creation of nitrogenous compounds in the coke by inhibiting protein nitrogen decomposition. It led to a 74.45 % increase in N atom retention. When the addition ratio of CaO to biomass is 1:10, the optimal sample NNHPC-1CaO exhibits the highest specific surface area (SSA) of 3117.73 m/g, accompanied by a microporous volume of 0.71 cm/g. Therefore, NNHPC-1CaO exhibits the highest specific capacitance of 429.18 F/g, which still achieves excellent rate performance with 69.53 % at 20 A/g. The symmetric supercapacitor achieves a best energy density of 11.01 Wh/kg at 125 W/kg.
{"title":"Multifunctional CaO template promotes the synthesis of natural N-doped hierarchical porous carbon for supercapacitors","authors":"Xikui Zhang, Zhaosheng Yu, Xiaoqian Ma, Wenchang Yue, Junjie Li, Yujing Zhang","doi":"10.1016/j.jiec.2024.08.039","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.039","url":null,"abstract":"N-doped porous carbon with reasonable pore size distribution is conducive to improving low specific capacitance and low ion transport efficiency. Natural N-doped hierarchical porous carbon (NNHPC) was synthesized by microwave-assisted heating using kapok tree and chlorella vulgaris as raw materials. CaO was used as a template to extend the pore channels and simultaneously enhance the retention of N atoms in NNHPC. The pyrolysis properties of the samples and surface functional groups of NNHPC were analyzed, revealing that CaO enhanced the creation of nitrogenous compounds in the coke by inhibiting protein nitrogen decomposition. It led to a 74.45 % increase in N atom retention. When the addition ratio of CaO to biomass is 1:10, the optimal sample NNHPC-1CaO exhibits the highest specific surface area (SSA) of 3117.73 m/g, accompanied by a microporous volume of 0.71 cm/g. Therefore, NNHPC-1CaO exhibits the highest specific capacitance of 429.18 F/g, which still achieves excellent rate performance with 69.53 % at 20 A/g. The symmetric supercapacitor achieves a best energy density of 11.01 Wh/kg at 125 W/kg.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"58 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-25DOI: 10.1016/j.jiec.2024.08.040
Yijian Hu, Zhaosheng Yu, Wenchang Yue, Zi You, Xiaoqian Ma
This study presents a new pathway for effective and environmentally friendly hydrogen generation from biomass pyrolysis using perovskite-type catalysts for highly valuable biomass conversion. Firstly, the impact of different Ni doping levels on LaCoO catalytic reactivity was investigated. On this basis, the impacts of different carbide slag adding proportions and reaction temperatures on the hydrogen yield and concentration were investigated. Among them, the maximum hydrogen yield at 600 °C under NiLaCo catalyst is 553.79 mL/g when the proportion of carbide slag is 5:15, and the volume concentration of hydrogen is 62.67 vol%. The outcomes demonstrated that the prepared NiO-LaCoO has excellent cycling performance, and the hydrogen yield of the NiLaCo catalyst decreased only marginally from 546.98 mL/g to 503.94 mL/g after ten cycles, with a comparatively small reduction of only 7.87 %. In particular, a high hydrogen concentration of 63.43 vol% is maintained in the pyrolysis gas.
{"title":"NiO-LaCoO3 catalysts for biomass pyrolysis to hydrogen-rich gas","authors":"Yijian Hu, Zhaosheng Yu, Wenchang Yue, Zi You, Xiaoqian Ma","doi":"10.1016/j.jiec.2024.08.040","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.040","url":null,"abstract":"This study presents a new pathway for effective and environmentally friendly hydrogen generation from biomass pyrolysis using perovskite-type catalysts for highly valuable biomass conversion. Firstly, the impact of different Ni doping levels on LaCoO catalytic reactivity was investigated. On this basis, the impacts of different carbide slag adding proportions and reaction temperatures on the hydrogen yield and concentration were investigated. Among them, the maximum hydrogen yield at 600 °C under NiLaCo catalyst is 553.79 mL/g when the proportion of carbide slag is 5:15, and the volume concentration of hydrogen is 62.67 vol%. The outcomes demonstrated that the prepared NiO-LaCoO has excellent cycling performance, and the hydrogen yield of the NiLaCo catalyst decreased only marginally from 546.98 mL/g to 503.94 mL/g after ten cycles, with a comparatively small reduction of only 7.87 %. In particular, a high hydrogen concentration of 63.43 vol% is maintained in the pyrolysis gas.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"24 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study presents composite nanoparticles combining cobalt ferrites-oleic acid (CF-OA) and mesoporous silica (MCM-41) for drug delivery. Temperature-dependent analyses at 25 and 42 °C reveal distinct alterations in particle size and distribution, emphasizing the role of oleate complexes in stabilizing the nanocomposites. Power of Laws calculations (n = 0.58, m = 0.44) assessed diffusion and matrix erosion effects, highlighting the pH-responsive behavior. Results showed CF-OA@MCM-41with nanometric scale and predominantly spherical morphology influenced by temperature variations. Nitrogen BET analysis revealed a surface area of 542.1 mg and a pore volume of 1.1 cmg. Drug release studies demonstrated controlled doxorubicin (DOX) release from CF-OA@MCM-41. In vivo studies showed significant tumor growth suppression (liver cancer): average tumor volume in D-C@M group was 167.8 mm after 21 days, compared to 1953.8 mm, 1203.6 mm, and 269 mm for PBS, CF-OA@MCM-41, and DOX alone respectively. In vitro, a 3 µg mL concentration showed no significant 293 T cell viability change and increased HEP G2 cell viability. Significant HEP G2 cell viability inhibition occurred at 1 and 2 µg mL CF-OA@MCM-41 carrying DOX, with p-values < 0.01 and < 0.001. CF-OA@MCM-41 nanoparticles exhibit promising potential for targeted cancer therapy due to their pH sensitivity and controlled drug release capabilities.
{"title":"Synthesis and characterization of oleic acid-stabilized cobalt ferrite @MCM-41/nanocomposites for pH-responsive drug delivery","authors":"Sat Septian Dwitya, Kuen-Song Lin, Meng-Tzu Weng, Ndumiso Vukile Mdlovu, Ming-Tao Yang, Chun-Ming Wu","doi":"10.1016/j.jiec.2024.08.036","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.036","url":null,"abstract":"This study presents composite nanoparticles combining cobalt ferrites-oleic acid (CF-OA) and mesoporous silica (MCM-41) for drug delivery. Temperature-dependent analyses at 25 and 42 °C reveal distinct alterations in particle size and distribution, emphasizing the role of oleate complexes in stabilizing the nanocomposites. Power of Laws calculations (n = 0.58, m = 0.44) assessed diffusion and matrix erosion effects, highlighting the pH-responsive behavior. Results showed CF-OA@MCM-41with nanometric scale and predominantly spherical morphology influenced by temperature variations. Nitrogen BET analysis revealed a surface area of 542.1 mg and a pore volume of 1.1 cmg. Drug release studies demonstrated controlled doxorubicin (DOX) release from CF-OA@MCM-41. In vivo studies showed significant tumor growth suppression (liver cancer): average tumor volume in D-C@M group was 167.8 mm after 21 days, compared to 1953.8 mm, 1203.6 mm, and 269 mm for PBS, CF-OA@MCM-41, and DOX alone respectively. In vitro, a 3 µg mL concentration showed no significant 293 T cell viability change and increased HEP G2 cell viability. Significant HEP G2 cell viability inhibition occurred at 1 and 2 µg mL CF-OA@MCM-41 carrying DOX, with p-values < 0.01 and < 0.001. CF-OA@MCM-41 nanoparticles exhibit promising potential for targeted cancer therapy due to their pH sensitivity and controlled drug release capabilities.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"25 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the indoor static environment, citric acid and oxalic acid, two kinds of low molecular weight organic acids were used to dissolve silicon and iron, which were two valuable elements in iron tailings. The results showed that the iron tailings used in this study were high silicon type iron tailings with 76.1 % silicon content and 11.31 % iron content. Both acids were soluble to ferrosilicon, but their solubility to iron was higher. Compared with the two, oxalic acid had stronger silicon solubility, reaching 35.98 μg/mL after 24d. The solubility of citric acid to iron was stronger, reaching 483.51 μg/mL after 24d. The dissolution of silicon and total iron in iron tailings by oxalic acid, citric acid and mixed acid conforms to first-order kinetics and belongs to surface dissolution reaction. After the dissolution of oxalic acid, silicon and iron ions might exist in the form of metasilic acid, iron oxalate and trioxalate potassium ferrite. Oxalic acid reacted with Fe to precipitate, which might be the reason for the higher Fe in the solution. The silicon and iron ions after citric acid dissolution might exist in the form of ferric citrate, ferric citrate complex, ferrous hexafluorosilicate, and more Fe products might be the reason for the higher Fe in the solution.
{"title":"The mechanism of citric acid and oxalic acid on dissolution of high-silicon iron tailings","authors":"Chaofan Li, Xiaoyu Zhang, Yan Yin, Fengming Xi, Shumei Wang, Qinqin Hu, Jiaoyue Wang, Longfei Bing","doi":"10.1016/j.jiec.2024.08.034","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.034","url":null,"abstract":"In the indoor static environment, citric acid and oxalic acid, two kinds of low molecular weight organic acids were used to dissolve silicon and iron, which were two valuable elements in iron tailings. The results showed that the iron tailings used in this study were high silicon type iron tailings with 76.1 % silicon content and 11.31 % iron content. Both acids were soluble to ferrosilicon, but their solubility to iron was higher. Compared with the two, oxalic acid had stronger silicon solubility, reaching 35.98 μg/mL after 24d. The solubility of citric acid to iron was stronger, reaching 483.51 μg/mL after 24d. The dissolution of silicon and total iron in iron tailings by oxalic acid, citric acid and mixed acid conforms to first-order kinetics and belongs to surface dissolution reaction. After the dissolution of oxalic acid, silicon and iron ions might exist in the form of metasilic acid, iron oxalate and trioxalate potassium ferrite. Oxalic acid reacted with Fe to precipitate, which might be the reason for the higher Fe in the solution. The silicon and iron ions after citric acid dissolution might exist in the form of ferric citrate, ferric citrate complex, ferrous hexafluorosilicate, and more Fe products might be the reason for the higher Fe in the solution.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"21 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-23DOI: 10.1016/j.jiec.2024.08.037
Zahra Salmanzadeh-Jamadi, Aziz Habibi-Yangjeh, Alireza Khataee
Recently, plasmonic photocatalysts fabricated using non-noble element of Bi have presented promising performances to tackle environmental and energy issues. Herein, we integrated Bi nanoparticles with brown TiO (denoted as T) co-modified by BiFeO/BiFeO components to fabricate double S-scheme plasmonic photocatalysts through a one-pot hydrothermal route. The results showed that the optimum T/BiFeO/BiFeO/Bi photocatalyst decomposed tetracycline about 36.1, 7.05, and 5.13 times superior than T, BiFeO/BiFeO, and T/BiFeO/BiFeO samples, respectively. More importantly, the resulting plasmonic photocatalyst exhibited superior photodegradation activities against the removal of other antibiotics such as azithromycin and amoxicillin, and dyes such as methylene blue, malachite green, and rhodamine B upon visible light. The extraordinary performance of rationally designed plasmonic photocatalyst was devoted to more harnessing of visible light and boosting charge segregation among the components facilitated by double S-scheme heterojunctions. The scavenging studies exhibited the formation of OH, O, and h reactive species over T/BiFeO/BiFeO/Bi nanocomposite under visible light. Considering the high stability, facile fabrication procedure, excellent biocompatibility, and impressive performance of T/BiFeO/BiFeO/Bi photocatalyst in destroying a wide range of contaminants in water, it is inferred that other impressive plasmonic photocatalysts-based on Bi can be designed and developed for effectively addressing the environmental issues upon visible light.
最近，利用非贵族元素 Bi 制备的等离子体光催化剂在解决环境和能源问题方面表现出了良好的性能。在此，我们将 Bi 纳米颗粒与棕色 TiO（记为 T）结合，并通过 BiFeO/BiFeO 成分共同修饰，通过一锅水热法路线制备出双 S 型等离子体光催化剂。结果表明，最佳的T/BiFeO/BiFeO/Bi光催化剂分解四环素的能力分别是T、BiFeO/BiFeO和T/BiFeO/BiFeO样品的36.1倍、7.05倍和5.13倍。更重要的是，所制备的等离子体光催化剂在可见光下对其他抗生素（如阿奇霉素和阿莫西林）以及染料（如亚甲基蓝、孔雀石绿和罗丹明 B）的去除具有优异的光降解活性。合理设计的等离子体光催化剂之所以具有非凡的性能，是因为它能更多地利用可见光，并通过双 S 型异质结促进了各组分之间的电荷分离。清除研究表明，在可见光下，T/BiFeO/BiFeO/Bi 纳米复合材料上形成了 OH、O 和 h 活性物种。考虑到 T/BiFeO/BiFeO/Bi 光催化剂的高稳定性、简便的制备过程、优异的生物相容性以及在破坏水中多种污染物方面的出色性能，可以推断，还可以设计和开发其他基于 Bi 的令人印象深刻的等离子体光催化剂，以便在可见光下有效解决环境问题。
{"title":"Integration of Bi nanoparticles with brown TiO2 co-modified by Bi2Fe4O9 and BiFeO3: Double S-scheme photocatalysts towards degradation of pollutants","authors":"Zahra Salmanzadeh-Jamadi, Aziz Habibi-Yangjeh, Alireza Khataee","doi":"10.1016/j.jiec.2024.08.037","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.037","url":null,"abstract":"Recently, plasmonic photocatalysts fabricated using non-noble element of Bi have presented promising performances to tackle environmental and energy issues. Herein, we integrated Bi nanoparticles with brown TiO (denoted as T) co-modified by BiFeO/BiFeO components to fabricate double S-scheme plasmonic photocatalysts through a one-pot hydrothermal route. The results showed that the optimum T/BiFeO/BiFeO/Bi photocatalyst decomposed tetracycline about 36.1, 7.05, and 5.13 times superior than T, BiFeO/BiFeO, and T/BiFeO/BiFeO samples, respectively. More importantly, the resulting plasmonic photocatalyst exhibited superior photodegradation activities against the removal of other antibiotics such as azithromycin and amoxicillin, and dyes such as methylene blue, malachite green, and rhodamine B upon visible light. The extraordinary performance of rationally designed plasmonic photocatalyst was devoted to more harnessing of visible light and boosting charge segregation among the components facilitated by double S-scheme heterojunctions. The scavenging studies exhibited the formation of OH, O, and h reactive species over T/BiFeO/BiFeO/Bi nanocomposite under visible light. Considering the high stability, facile fabrication procedure, excellent biocompatibility, and impressive performance of T/BiFeO/BiFeO/Bi photocatalyst in destroying a wide range of contaminants in water, it is inferred that other impressive plasmonic photocatalysts-based on Bi can be designed and developed for effectively addressing the environmental issues upon visible light.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"17 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-23DOI: 10.1016/j.jiec.2024.08.022
Wenhao Du, Fanhao Zeng, Rui Huang, Meiyan Chen, Zengjin Li, Zhi Li
This study aimed to optimize the preparation of carbon/carbon (C/C) composites by developing and validating a computational model for three-dimensional (3D) transient densification through an isothermal chemical vapor-phase infiltration (ICVI) process using a methane/propane mixture. Simplified multistep parallel reaction kinetics were employed to simulate the pore evolution using a two-dimensional representative volume element model and a 3D stochastic fiber model. The permeability, flow modeling, and material transfer behaviors were calculated using the Ergun, Brinkman, and mixing diffusion equations. The density was calculated to be 1.294 g/cm after 50 h of deposition with specific flow rates and temperatures. The experimental densities were lower than those predicted with an increased propane flow, highlighting the complex reaction kinetics. The numerical simulation results exhibited strong agreement with the experimental results at 1328 K, achieving a correlation of up to 5.918. This study provides a robust theoretical and experimental basis for optimizing the structure and process control of C/C composites.
{"title":"Numerical simulation and experimental validation of ICVI-C/C reaction process by methane/propane gas mixture source","authors":"Wenhao Du, Fanhao Zeng, Rui Huang, Meiyan Chen, Zengjin Li, Zhi Li","doi":"10.1016/j.jiec.2024.08.022","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.022","url":null,"abstract":"This study aimed to optimize the preparation of carbon/carbon (C/C) composites by developing and validating a computational model for three-dimensional (3D) transient densification through an isothermal chemical vapor-phase infiltration (ICVI) process using a methane/propane mixture. Simplified multistep parallel reaction kinetics were employed to simulate the pore evolution using a two-dimensional representative volume element model and a 3D stochastic fiber model. The permeability, flow modeling, and material transfer behaviors were calculated using the Ergun, Brinkman, and mixing diffusion equations. The density was calculated to be 1.294 g/cm after 50 h of deposition with specific flow rates and temperatures. The experimental densities were lower than those predicted with an increased propane flow, highlighting the complex reaction kinetics. The numerical simulation results exhibited strong agreement with the experimental results at 1328 K, achieving a correlation of up to 5.918. This study provides a robust theoretical and experimental basis for optimizing the structure and process control of C/C composites.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"50 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Controlling loss of blood during militant war, traumatic injury, and surgical procedures is the greatest challenge nowadays, which leads to death, thereby the necessity of hemostatic bandages. The present work focuses on the synthesis of waste-derived (WD)-Ca incorporated Zn nanorods encapsulated with chitosan polymers (CZC) to control the loss of blood as well as bacterial infection. The as-prepared CZC bandage was tested against various biochemical tests such as PBS absorption, hemolysis, adsorption of protein, platelets aggregation/adhesion, blood clotting ability, and antibacterial test assay. The data suggested that the CZC bandage has high biocompatibility, exceptional PBS absorption ability (∼1402%), platelets aggregation (∼65%) within 10 min of exposure, protein a loading ability (∼37 mg/cm), and ∼84% blood clotting within a 1 min of exposure. Moreover, the CZC bandage effectively kills/inhibits both and bacteria. Therefore, the prepared CZC bandage in this study is simple, economically viable, and sustainable development.
{"title":"Waste-derived Ca and Zn-based bimetallic (Ca/Zn) nanorods encapsulated chitosan-based haemostatic dressing bandage: A step towards waste to bandages","authors":"Pooja Thakur, Rishabh Anand Omar, Neetu Talreja, Divya Chauhan, Mohammad Ashfaq","doi":"10.1016/j.jiec.2024.08.035","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.035","url":null,"abstract":"Controlling loss of blood during militant war, traumatic injury, and surgical procedures is the greatest challenge nowadays, which leads to death, thereby the necessity of hemostatic bandages. The present work focuses on the synthesis of waste-derived (WD)-Ca incorporated Zn nanorods encapsulated with chitosan polymers (CZC) to control the loss of blood as well as bacterial infection. The as-prepared CZC bandage was tested against various biochemical tests such as PBS absorption, hemolysis, adsorption of protein, platelets aggregation/adhesion, blood clotting ability, and antibacterial test assay. The data suggested that the CZC bandage has high biocompatibility, exceptional PBS absorption ability (∼1402%), platelets aggregation (∼65%) within 10 min of exposure, protein a loading ability (∼37 mg/cm), and ∼84% blood clotting within a 1 min of exposure. Moreover, the CZC bandage effectively kills/inhibits both and bacteria. Therefore, the prepared CZC bandage in this study is simple, economically viable, and sustainable development.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"62 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-23DOI: 10.1016/j.jiec.2024.08.028
Ha-Yeong Kim, Suk Jekal, Yeon-Ryong Chu, Jisu Lim, Jiwon Kim, Jungchul Noh, Hwa Sung Lee, Zambaga Otgonbayar, Chang-Min Yoon
We synthesize an etchant solution designed to remove polydimethylsiloxane (PDMS) residues from semiconductor wafers during wafer-to-wafer processing in advanced semiconductor packaging (AVP). The etchant solution is produced by combining hexane, a nonpolar swelling solvent, with tetrabutylammonium fluoride (TBAF), a fluorine-based compound, to enhance PDMS etching. We evaluate the etching rate of PDMS using various solvent mixtures, including 1-vinyl-2-pyrrolidone, 1-methyl-2-pyrrolidone, 1-ethyl-2-pyrrolidone, and 1-octyl-2-pyrrolidone (NOP), with different concentrations of TBAF (1.0–5.0 wt%). Notably, NOP, which contains octyl groups, demonstrates the highest PDMS etching rate, particularly when combined with 70.0 wt% hexane. The optimized solution, F3-NOP/H70, achieves an etching rate of 85.7 μm/min. Further testing confirms that the F3-NOP/H70 solution effectively removes PDMS residues from wafer surfaces without damaging dielectric layers, such as the photosolder resist and photosensitive polyimide. These results indicate that the F3-NOP/H70 solution efficiently dissolves and removes PDMS residues and preserves the integrity of adjacent wafer components, making it a promising candidate for AVP applications. This study emphasizes the importance of selecting appropriate solvent systems for residue removal in semiconductor manufacturing and offers a practical solution to enhance device quality and reliability. This approach can potentially be applied at various stages of semiconductor processing, where residue management is essential.
{"title":"Development of a new type of highly effective etchant solution for glue residue in wafer-level packaging process","authors":"Ha-Yeong Kim, Suk Jekal, Yeon-Ryong Chu, Jisu Lim, Jiwon Kim, Jungchul Noh, Hwa Sung Lee, Zambaga Otgonbayar, Chang-Min Yoon","doi":"10.1016/j.jiec.2024.08.028","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.028","url":null,"abstract":"We synthesize an etchant solution designed to remove polydimethylsiloxane (PDMS) residues from semiconductor wafers during wafer-to-wafer processing in advanced semiconductor packaging (AVP). The etchant solution is produced by combining hexane, a nonpolar swelling solvent, with tetrabutylammonium fluoride (TBAF), a fluorine-based compound, to enhance PDMS etching. We evaluate the etching rate of PDMS using various solvent mixtures, including 1-vinyl-2-pyrrolidone, 1-methyl-2-pyrrolidone, 1-ethyl-2-pyrrolidone, and 1-octyl-2-pyrrolidone (NOP), with different concentrations of TBAF (1.0–5.0 wt%). Notably, NOP, which contains octyl groups, demonstrates the highest PDMS etching rate, particularly when combined with 70.0 wt% hexane. The optimized solution, F3-NOP/H70, achieves an etching rate of 85.7 μm/min. Further testing confirms that the F3-NOP/H70 solution effectively removes PDMS residues from wafer surfaces without damaging dielectric layers, such as the photosolder resist and photosensitive polyimide. These results indicate that the F3-NOP/H70 solution efficiently dissolves and removes PDMS residues and preserves the integrity of adjacent wafer components, making it a promising candidate for AVP applications. This study emphasizes the importance of selecting appropriate solvent systems for residue removal in semiconductor manufacturing and offers a practical solution to enhance device quality and reliability. This approach can potentially be applied at various stages of semiconductor processing, where residue management is essential.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"2 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-22DOI: 10.1016/j.jiec.2024.08.029
Khaled M. Alanezi, Irshad Ahmad, S. AlFaify, Ijaz Ali, Akbar Mohammad, Majid S. Jabir, Hasan Majdi, Fahad M. Almutairi
The demand for energy generation and environmental remediation has inspired the design of green photocatalysis. Owing to their high surface area, superior charge mobility, and high chemical durability, graphene and its derivatives have been widely exploited to develop remarkable photocatalysts for diverse applications. Heteroatom doping can equip these materials with enhanced physiochemical, optical, and electrical characteristics. Considering the recent advances in experimental and theoretical research, we have critically reviewed and discussed heteroatom-doped graphene- and its derivatives-based photocatalysts, including basic properties, synthetic methods, single-doped, and co-doped graphene and its derivatives in the application of photocatalysis. In particular, we addressed the unique characteristics originating from different heteroatomdopants, varied dopingamounts and combinations, and mutual impacts from co-dopants to improve the conception of heteroatom-doped graphene and its derivativesmaterials. The reaction pathwaysbehind their favorable utilization for photocatalysis are discussed topromote advanced applications. The current review offers a reference for the design and photocatalytic applications of novel heteroatom-doped graphene and its derivatives materials.
{"title":"A review of advanced heteroatom-doped graphene and its derivatives materials for photocatalytic applications","authors":"Khaled M. Alanezi, Irshad Ahmad, S. AlFaify, Ijaz Ali, Akbar Mohammad, Majid S. Jabir, Hasan Majdi, Fahad M. Almutairi","doi":"10.1016/j.jiec.2024.08.029","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.029","url":null,"abstract":"The demand for energy generation and environmental remediation has inspired the design of green photocatalysis. Owing to their high surface area, superior charge mobility, and high chemical durability, graphene and its derivatives have been widely exploited to develop remarkable photocatalysts for diverse applications. Heteroatom doping can equip these materials with enhanced physiochemical, optical, and electrical characteristics. Considering the recent advances in experimental and theoretical research, we have critically reviewed and discussed heteroatom-doped graphene- and its derivatives-based photocatalysts, including basic properties, synthetic methods, single-doped, and co-doped graphene and its derivatives in the application of photocatalysis. In particular, we addressed the unique characteristics originating from different heteroatomdopants, varied dopingamounts and combinations, and mutual impacts from co-dopants to improve the conception of heteroatom-doped graphene and its derivativesmaterials. The reaction pathwaysbehind their favorable utilization for photocatalysis are discussed topromote advanced applications. The current review offers a reference for the design and photocatalytic applications of novel heteroatom-doped graphene and its derivatives materials.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"45 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-22DOI: 10.1016/j.jiec.2024.08.031
Ruixiang Bai, Gang Zhao, Guangyi Liu
In this paper, the flotation performances of benzohydroxamic acid (BHA) and its derivatives, p-methyl-benzohydroxamic acid (PMBHA) and p-methoxy-benzohydroxamic acid (PMOBHA) towards bastnaesite and calcite were investigated. The micro-flotation results indicated that the three collectors returned an excellent flotation selectivity against calcite, and their collecting ability towards bastnaesite followed the sequence of PMBHA > PMOBHA > BHA. PMBHA achieved the effective flotation separation of bastnaesite from calcite under pH 8.0–11.0. The findings of adsorption capacity and zeta-potential inferred that PMOBHA exhibited the strongest adsorption affinity to bastnaesite, followed by PMBHA, and then BHA, corresponding to their electron donating ability as-calculated by density functional theory (DFT). While, the dynamic froth stability and contact angle showed that the foaming ability of the three collectors and their hydrophobization towards bastnaesite surface were in order of PMBHA > PMOBHA > BHA, which originated from the hydrophobicity difference reflected by the calculated LogP values. Their collecting power was consistent with the hydrophobization ability rather than the adsorption affinity. For the chemisorption of the three hydroxamic acids on bastnaesite surface was strong enough, their hydrophobicity and foaming power might play an important role for their collecting ability. PMBHA was an excellent candidate collector for bastnaesite flotation.
{"title":"Selective flotation separation of bastnaesite from calcite using p-methyl/methoxy benzohydroxamic acid collectors","authors":"Ruixiang Bai, Gang Zhao, Guangyi Liu","doi":"10.1016/j.jiec.2024.08.031","DOIUrl":"https://doi.org/10.1016/j.jiec.2024.08.031","url":null,"abstract":"In this paper, the flotation performances of benzohydroxamic acid (BHA) and its derivatives, p-methyl-benzohydroxamic acid (PMBHA) and p-methoxy-benzohydroxamic acid (PMOBHA) towards bastnaesite and calcite were investigated. The micro-flotation results indicated that the three collectors returned an excellent flotation selectivity against calcite, and their collecting ability towards bastnaesite followed the sequence of PMBHA > PMOBHA > BHA. PMBHA achieved the effective flotation separation of bastnaesite from calcite under pH 8.0–11.0. The findings of adsorption capacity and zeta-potential inferred that PMOBHA exhibited the strongest adsorption affinity to bastnaesite, followed by PMBHA, and then BHA, corresponding to their electron donating ability as-calculated by density functional theory (DFT). While, the dynamic froth stability and contact angle showed that the foaming ability of the three collectors and their hydrophobization towards bastnaesite surface were in order of PMBHA > PMOBHA > BHA, which originated from the hydrophobicity difference reflected by the calculated LogP values. Their collecting power was consistent with the hydrophobization ability rather than the adsorption affinity. For the chemisorption of the three hydroxamic acids on bastnaesite surface was strong enough, their hydrophobicity and foaming power might play an important role for their collecting ability. PMBHA was an excellent candidate collector for bastnaesite flotation.","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"13 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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