Pub Date : 2025-04-13DOI: 10.1016/j.jtice.2025.106138
Zhenyu Wang , Yiming Wang , Cengceng Du , Yi Liu , Shengyin Luo , Xin Chen , Wenlong Zhang , Xinyu Liu , Wenjuan Xu , Peng Zheng , Sun Hong-bin , Guangwen Xu
Background
Urea oxidation reaction (UOR) assisted H2 evolution reaction (HER) holds promising for energy-saving H2 production via the water electrolysis.
Methods
In this work, an alkaline earth metal species, Mg(OH)2, is applied to activate the catalytic performance of the Rh-based catalyst. The developed catalyst Rh-doped Mg(OH)2 on Ni-MOF/NF has both excellent UOR and HER catalytic activities. Evidence is supported by experiments and calculations that the Rh/Mg(OH)2 is the active site.
Significant findings
In a alkaline environment, the overpotential of HER is only 14 mV to 10 mA cm-2 of the current density, and anodic potential of UOR is only 1.290 V. When assembling a symmetry electrolyzer, UOR assisted HER can save 200 mV compared to water electrolysis.
{"title":"Introducing Rh-doped Mg(OH)2 on Ni-MOF as a symmetry electrode for accelerating urea oxidation reaction assisted hydrogen evolution","authors":"Zhenyu Wang , Yiming Wang , Cengceng Du , Yi Liu , Shengyin Luo , Xin Chen , Wenlong Zhang , Xinyu Liu , Wenjuan Xu , Peng Zheng , Sun Hong-bin , Guangwen Xu","doi":"10.1016/j.jtice.2025.106138","DOIUrl":"10.1016/j.jtice.2025.106138","url":null,"abstract":"<div><h3>Background</h3><div>Urea oxidation reaction (UOR) assisted H<sub>2</sub> evolution reaction (HER) holds promising for energy-saving H<sub>2</sub> production via the water electrolysis.</div></div><div><h3>Methods</h3><div>In this work, an alkaline earth metal species, Mg(OH)<sub>2</sub>, is applied to activate the catalytic performance of the Rh-based catalyst. The developed catalyst Rh-doped Mg(OH)<sub>2</sub> on Ni-MOF/NF has both excellent UOR and HER catalytic activities. Evidence is supported by experiments and calculations that the Rh/Mg(OH)<sub>2</sub> is the active site.</div></div><div><h3>Significant findings</h3><div>In a alkaline environment, the overpotential of HER is only 14 mV to 10 mA cm<sup>-2</sup> of the current density, and anodic potential of UOR is only 1.290 V. When assembling a symmetry electrolyzer, UOR assisted HER can save 200 mV compared to water electrolysis.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106138"},"PeriodicalIF":5.5,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823239","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 : 2025-04-13DOI: 10.1016/j.jtice.2025.106119
Jialin Liu , Hao-Che Chien , David Shan-Hill Wong , Cheng-Ting Hsieh
Background
The modified Claus process is a major technology used for the recovery of elemental sulfur from acid gases. The process consists of two steps. In the first step, a portion of H2S is oxidized to SO2 in a reaction furnace; the second step comprises the reaction of the remaining H2S with SO2 at lower temperatures over a catalyst. The major manipulated variables (MVs) to maximize the sulfur recovery efficiency (SRE) are the combustion air flow rate and inlet gas temperature for the converter. However, both MVs encounter a process gain reverse problem for the controlled variable (CV), which refers to the outlet total sulfur. In addition, process control is limited by the significant time delay between the air flow rate and tail gas analyzer.
Methods
In this study, an artificial intelligence (AI) surrogate model was built and the movement of the MVs was evaluated using to minimize the sum of the predicted total sulfur in the prediction horizon. The assumption of future disturbance data is not necessary for the proposed approach.
Significant findings
In field operations, a specific H2S/SO2 in the tail gas is maintained by the combustion air that is inefficient to minimize total sulfur. The total sulfur content can be reduced by approximately 12 % from 1.6 %–1.4 % compared with that of field operations by the advanced process control.
{"title":"Advanced process control for sulfur recovery units by artificial intelligence (AI) surrogate model","authors":"Jialin Liu , Hao-Che Chien , David Shan-Hill Wong , Cheng-Ting Hsieh","doi":"10.1016/j.jtice.2025.106119","DOIUrl":"10.1016/j.jtice.2025.106119","url":null,"abstract":"<div><h3>Background</h3><div>The modified Claus process is a major technology used for the recovery of elemental sulfur from acid gases. The process consists of two steps. In the first step, a portion of H<sub>2</sub>S is oxidized to SO<sub>2</sub> in a reaction furnace; the second step comprises the reaction of the remaining H<sub>2</sub>S with SO<sub>2</sub> at lower temperatures over a catalyst. The major manipulated variables (MVs) to maximize the sulfur recovery efficiency (SRE) are the combustion air flow rate and inlet gas temperature for the converter. However, both MVs encounter a process gain reverse problem for the controlled variable (CV), which refers to the outlet total sulfur. In addition, process control is limited by the significant time delay between the air flow rate and tail gas analyzer.</div></div><div><h3>Methods</h3><div>In this study, an artificial intelligence (AI) surrogate model was built and the movement of the MVs was evaluated using to minimize the sum of the predicted total sulfur in the prediction horizon. The assumption of future disturbance data is not necessary for the proposed approach.</div></div><div><h3>Significant findings</h3><div>In field operations, a specific H<sub>2</sub>S/SO<sub>2</sub> in the tail gas is maintained by the combustion air that is inefficient to minimize total sulfur. The total sulfur content can be reduced by approximately 12 % from 1.6 %–1.4 % compared with that of field operations by the advanced process control.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106119"},"PeriodicalIF":5.5,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823237","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 : 2025-04-12DOI: 10.1016/j.jtice.2025.106133
Salma A. Al-Zahrani , Ahmed S. Al-Fatesh , Ahmed Mohamed El-Toni , Najat Masood , Sahar Y. Rajeh , Ahmed Al Otaibi , Rawesh Kumar
Background
Methane is a highly potent greenhouse gas and one of the major culprits of global warming. Partial oxidation of methane (POM) is a catalytic route for getting hydrogen-rich syngas upon mitigation of methane. However, achieving > 80 % H2 yield at low temperatures as 600 °C remains challenging.
Methods
Herein, 5 wt. % Ni supported over MCM-41 (an ordered mesoporous silicate) and 0.5–2 wt. % Gd promoted 5Ni/MCM-41 are prepared by impregnation method and investigated for POM at 600 °C. To validate activity results, catalysts are characterized by surface area and porosity, X-ray diffraction, Temperature programmed techniques, thermogravimetric analysis, Transmission electron microscopy, and X-ray photo electron microscopy.
Significant findings
Increasing loading of Gd over 5Ni/MCM-41catalysts is found to optimize the size of Ni crystallite as low as 7.6 nm (than 22.2 nm in 5Ni/MCM-41), to enhance the surface area up to 25 % and to expand the pore volume up to 28 %. At optimum Gd loading (1 wt. %), all active sites are generated, and ∼85 % H2 yield with 2.3 H2/CO ratio is achieved constantly up to 240 min on stream. The low reaction temperature requirement (600 °C) and achieving consistently high H2 yield make the 5Ni1Gd/MCM-41 catalyst reasonable for the next level of catalytic development for industrial applications.
{"title":"Optimizing Gd-Ni/MCM-41 catalyst for H2-rich syngas production via CH4 partial oxidation","authors":"Salma A. Al-Zahrani , Ahmed S. Al-Fatesh , Ahmed Mohamed El-Toni , Najat Masood , Sahar Y. Rajeh , Ahmed Al Otaibi , Rawesh Kumar","doi":"10.1016/j.jtice.2025.106133","DOIUrl":"10.1016/j.jtice.2025.106133","url":null,"abstract":"<div><h3>Background</h3><div>Methane is a highly potent greenhouse gas and one of the major culprits of global warming. Partial oxidation of methane (POM) is a catalytic route for getting hydrogen-rich syngas upon mitigation of methane. However, achieving > 80 % H<sub>2</sub> yield at low temperatures as 600 °C remains challenging.</div></div><div><h3>Methods</h3><div>Herein, 5 wt. % Ni supported over MCM-41 (an ordered mesoporous silicate) and 0.5–2 wt. % Gd promoted 5Ni/MCM-41 are prepared by impregnation method and investigated for POM at 600 °C. To validate activity results, catalysts are characterized by surface area and porosity, X-ray diffraction, Temperature programmed techniques, thermogravimetric analysis, Transmission electron microscopy, and X-ray photo electron microscopy.</div></div><div><h3>Significant findings</h3><div>Increasing loading of Gd over 5Ni/MCM-41catalysts is found to optimize the size of Ni crystallite as low as 7.6 nm (than 22.2 nm in 5Ni/MCM-41), to enhance the surface area up to 25 % and to expand the pore volume up to 28 %. At optimum Gd loading (1 wt. %), all active sites are generated, and ∼85 % H<sub>2</sub> yield with 2.3 H<sub>2</sub>/CO ratio is achieved constantly up to 240 min on stream. The low reaction temperature requirement (600 °C) and achieving consistently high H<sub>2</sub> yield make the 5Ni1Gd/MCM-41 catalyst reasonable for the next level of catalytic development for industrial applications.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820325","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 : 2025-04-12DOI: 10.1016/j.jtice.2025.106135
Muhammad ‘Adli Nor Azman , Pei Sean Goh , Ahmad Fauzi Ismail , Khairulnadzmi Jamaluddin , Nor Akalili Ahmad , Muhammad Hafizuddin Hazaraimi , Ahmad Syazwan Sahril
While reverse osmosis (RO) is effective for treating radionuclide-contaminated wastewater, it is confronted by some limitations including membrane fouling and limited rejection towards ions with relatively small hydrated radii like Cs+. In this study, surface modification of PA TFC membranes is explored for the improvement of radionuclide rejection efficiency. A convenient spray coating method was employed to introduce a polyethyleneimine (PEI) layer of different concentrations on the membrane surface, thereby rendering desired positive surface charges for efficient rejection of Cs+, Cd2+, and Cr3+ ions. The modified membranes were characterized in terms of their morphological changes, surface charge density, long-term stability and fouling resistance. The Cs+, Cd2+ and Cr3+ ion rejection of the optimized membrane, TFC membrane coated with 0.1 mg/l PEI, was significantly improved by 14.89 %, 17.39 % and 4.12 %, respectively. The surface features of the membrane remained unchanged over the 24-hour filtration testing, suggesting the stability of the coating layer. The findings of this study suggest that PEI spray coating can serve as a promising approach to improve radionuclide ion removal from aqueous systems and represents a promising approach for membrane-based wastewater treatment.
{"title":"Development of positively charged polyamide reverse osmosis membrane via polyethyleneimine spray coating for enhanced radionuclide rejection in water treatment","authors":"Muhammad ‘Adli Nor Azman , Pei Sean Goh , Ahmad Fauzi Ismail , Khairulnadzmi Jamaluddin , Nor Akalili Ahmad , Muhammad Hafizuddin Hazaraimi , Ahmad Syazwan Sahril","doi":"10.1016/j.jtice.2025.106135","DOIUrl":"10.1016/j.jtice.2025.106135","url":null,"abstract":"<div><div>While reverse osmosis (RO) is effective for treating radionuclide-contaminated wastewater, it is confronted by some limitations including membrane fouling and limited rejection towards ions with relatively small hydrated radii like Cs<sup>+</sup>. In this study, surface modification of PA TFC membranes is explored for the improvement of radionuclide rejection efficiency. A convenient spray coating method was employed to introduce a polyethyleneimine (PEI) layer of different concentrations on the membrane surface, thereby rendering desired positive surface charges for efficient rejection of Cs<sup>+</sup>, Cd<sup>2+</sup>, and Cr<sup>3+</sup> ions. The modified membranes were characterized in terms of their morphological changes, surface charge density, long-term stability and fouling resistance. The Cs<sup>+</sup>, Cd<sup>2+</sup> and Cr<sup>3+</sup> ion rejection of the optimized membrane, TFC membrane coated with 0.1 mg/l PEI, was significantly improved by 14.89 %, 17.39 % and 4.12 %, respectively. The surface features of the membrane remained unchanged over the 24-hour filtration testing, suggesting the stability of the coating layer. The findings of this study suggest that PEI spray coating can serve as a promising approach to improve radionuclide ion removal from aqueous systems and represents a promising approach for membrane-based wastewater treatment.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106135"},"PeriodicalIF":5.5,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823235","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 : 2025-04-12DOI: 10.1016/j.jtice.2025.106134
Lijing Qiu, Na Li, Guoqing Zhang, Jiayang Zhang, Weizhou Jiao, Ruixin Wang
Background
The exploration of efficient and stable transition metal-based co-catalysts is of great importance for the large-scale hydrogen production by photocatalytic water splitting.
Methods
Herein, a rod-shaped nitrogen-doped carbon (NC)-supported cubic molybdenum carbide (α-MoC) (i.e. MoC/NC) was explored to decorate CdS, thus forming MoC/NC@CdS to enhance its photocatalytic hydrogen generation under visible light irradiation (≥400 nm), in which MoC/NC derived from the in-situ carbonization of the complex of phosphomolybdic acid (PMo12) and Zr(IV) porphyrinic metal-organic framework (MOF-545) under inert atmosphere.
Significant findings
Due to the intrinsic hydrogen reduction activity of MoC and its improved electron structure by the NC layer, the accelerated photogenerated electron transfer of CdS to MoC by the MoC/CdS Schottky junction and the good conductivity of NC layer, as well as the resulting acceleration of carrier separation, MoC/NC@CdS exhibits outstanding photocatalytic hydrogen generation performance, achieving 32.14 mmol g⁻¹ h⁻¹ of H2 production rate, which was a 9.43-fold increase relative to that of pristine CdS. And the apparent quantum yield (AQY) at 420 nm was up to 1.77 %. Moreover, MoC/NC significantly mitigates the photocorrosion effect of CdS, therefore enhancing its duration.
{"title":"Rod-shaped MoC-decorated CdS for boosted visible-light-driven H2 production","authors":"Lijing Qiu, Na Li, Guoqing Zhang, Jiayang Zhang, Weizhou Jiao, Ruixin Wang","doi":"10.1016/j.jtice.2025.106134","DOIUrl":"10.1016/j.jtice.2025.106134","url":null,"abstract":"<div><h3>Background</h3><div>The exploration of efficient and stable transition metal-based co-catalysts is of great importance for the large-scale hydrogen production by photocatalytic water splitting.</div></div><div><h3>Methods</h3><div>Herein, a rod-shaped nitrogen-doped carbon (NC)-supported cubic molybdenum carbide (α-MoC) (<em>i.e.</em> MoC/NC) was explored to decorate CdS, thus forming MoC/NC@CdS to enhance its photocatalytic hydrogen generation under visible light irradiation (≥400 nm), in which MoC/NC derived from the <em>in-situ</em> carbonization of the complex of phosphomolybdic acid (PMo<sub>12</sub>) and Zr(IV) porphyrinic metal-organic framework (MOF-545) under inert atmosphere.</div></div><div><h3>Significant findings</h3><div>Due to the intrinsic hydrogen reduction activity of MoC and its improved electron structure by the NC layer, the accelerated photogenerated electron transfer of CdS to MoC by the MoC/CdS Schottky junction and the good conductivity of NC layer, as well as the resulting acceleration of carrier separation, MoC/NC@CdS exhibits outstanding photocatalytic hydrogen generation performance, achieving 32.14 mmol g⁻¹ h⁻¹ of H<sub>2</sub> production rate, which was a 9.43-fold increase relative to that of pristine CdS. And the apparent quantum yield (AQY) at 420 nm was up to 1.77 %. Moreover, MoC/NC significantly mitigates the photocorrosion effect of CdS, therefore enhancing its duration.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106134"},"PeriodicalIF":5.5,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821558","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 : 2025-04-10DOI: 10.1016/j.jtice.2025.106131
Han-Lin Wang , Munusamy Sathish Kumar , Hao-Xiang Chang , Martin Hulman , Jeng-Yu Lin
Background
Deep eutectic solvents (DES) are rapidly gaining attraction as
electrolytes in electrochemical energy storage devices due to their low melting points, enhanced safety, cost-effectiveness, broad electrochemical stability window, high thermal stability, and biodegradability.
Methods
A novel hybrid deep eutectic solvent (DES) electrolyte was formulated by combining dimethyl sulfoxide (DMSO) with LiClO₄. It exhibits versatile tunability through the addition of water and acetonitrile as co-solvents.
Significant findings
This innovative hybrid DES demonstrates superior ionic conductivity, reduced viscosity, and enhanced flame retardancy, enabling the development of a symmetric activated carbon (AC) based supercapacitor (SC) with a stable potential window of 2.2 V. The device achieves an impressive specific capacitance of 46.6 F g⁻¹ at a current density of 1 A g⁻¹, with an energy density of 28.6 Wh kg⁻¹ at a power density of 1020 W kg⁻¹. Additionally, it shows outstanding cyclic stability, retaining 92 % of its capacitance after 20,000 cycles at 5 A g⁻¹, and 86 % retention after a 120-hour floating test. Notably, due to the good anti-freezing capability of the hybrid DES electrolyte, the device maintains high performance even at temperatures as low as -20 °C.
{"title":"Wide-potential, low-temperature supercapacitors enabled by dimethyl sulfoxide-based hybrid deep eutectic solvents","authors":"Han-Lin Wang , Munusamy Sathish Kumar , Hao-Xiang Chang , Martin Hulman , Jeng-Yu Lin","doi":"10.1016/j.jtice.2025.106131","DOIUrl":"10.1016/j.jtice.2025.106131","url":null,"abstract":"<div><h3>Background</h3><div>Deep eutectic solvents (DES) are rapidly gaining attraction as</div><div>electrolytes in electrochemical energy storage devices due to their low melting points, enhanced safety, cost-effectiveness, broad electrochemical stability window, high thermal stability, and biodegradability.</div></div><div><h3>Methods</h3><div>A novel hybrid deep eutectic solvent (DES) electrolyte was formulated by combining dimethyl sulfoxide (DMSO) with LiClO₄. It exhibits versatile tunability through the addition of water and acetonitrile as co-solvents.</div></div><div><h3>Significant findings</h3><div>This innovative hybrid DES demonstrates superior ionic conductivity, reduced viscosity, and enhanced flame retardancy, enabling the development of a symmetric activated carbon (AC) based supercapacitor (SC) with a stable potential window of 2.2 V. The device achieves an impressive specific capacitance of 46.6 F g⁻¹ at a current density of 1 A g⁻¹, with an energy density of 28.6 Wh kg⁻¹ at a power density of 1020 W kg⁻¹. Additionally, it shows outstanding cyclic stability, retaining 92 % of its capacitance after 20,000 cycles at 5 A g⁻¹, and 86 % retention after a 120-hour floating test. Notably, due to the good anti-freezing capability of the hybrid DES electrolyte, the device maintains high performance even at temperatures as low as -20 °C.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106131"},"PeriodicalIF":5.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807522","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 : 2025-04-09DOI: 10.1016/j.jtice.2025.106114
Souvik Pal , Po-Yi Lu , Ling-I Hung , Chia-Her Lin , Chih-Feng Wang
Background
Oil spills and emulsified water-in-oil mixtures from industrial processes pose a serious threat to organisms on earth. To address these environmental challenges, methods utilizing superwetting materials to efficiently treat emulsified oil/water mixtures have drawn noteworthy interest in the past few years.
Method
Herein, we prepared a superhydrophobic metal-organic frameworks (MOF)/polyhedral oligomeric silsesquioxanes (POSS) composite (AlTz-68-POSS). It was then used to modify melamine sponge (MS) to prepare superhydrophobic sponge, AlTz-68-POSS@MS.
Significant finding
AlTz-68-POSS@MS exhibited distinguished organic solvents absorption capacities of up to 129 g/g. Moreover, it demonstrated outstanding separation performance for surfactant-stabilized water-in-oil emulsion (SWOE), achieving exceedingly high separation fluxes of up to 8,670 L m-2 h-1 under gravity-driven conditions, and 1,531,000 L m-2 h-1 bar-1 under external pressure-driven tests. Moreover, the oil purity in the all filtrates exceeded 99.98 wt%. In comparison with many other kinds of superwetting MOF-modified composites, the AlTz-68-POSS@MS shows excellent fluxes and superior separation efficiencies for SWOEs.
{"title":"Preparation of fluorine-free superwetting metal-organic frameworks/polyhedral oligomeric silsesquioxanes composites for oil absorption and exceedingly high flux emulsion separation","authors":"Souvik Pal , Po-Yi Lu , Ling-I Hung , Chia-Her Lin , Chih-Feng Wang","doi":"10.1016/j.jtice.2025.106114","DOIUrl":"10.1016/j.jtice.2025.106114","url":null,"abstract":"<div><h3>Background</h3><div>Oil spills and emulsified water-in-oil mixtures from industrial processes pose a serious threat to organisms on earth. To address these environmental challenges, methods utilizing superwetting materials to efficiently treat emulsified oil/water mixtures have drawn noteworthy interest in the past few years.</div></div><div><h3>Method</h3><div>Herein, we prepared a superhydrophobic metal-organic frameworks (MOF)/polyhedral oligomeric silsesquioxanes (POSS) composite (AlTz-68-POSS). It was then used to modify melamine sponge (MS) to prepare superhydrophobic sponge, AlTz-68-POSS@MS.</div></div><div><h3>Significant finding</h3><div>AlTz-68-POSS@MS exhibited distinguished organic solvents absorption capacities of up to 129 g/g. Moreover, it demonstrated outstanding separation performance for surfactant-stabilized water-in-oil emulsion (SWOE), achieving exceedingly high separation fluxes of up to 8,670 L m<sup>-2</sup> h<sup>-1</sup> under gravity-driven conditions, and 1,531,000 L m<sup>-2</sup> h<sup>-1</sup> bar<sup>-1</sup> under external pressure-driven tests. Moreover, the oil purity in the all filtrates exceeded 99.98 wt%. In comparison with many other kinds of superwetting MOF-modified composites, the AlTz-68-POSS@MS shows excellent fluxes and superior separation efficiencies for SWOEs.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106114"},"PeriodicalIF":5.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799983","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 : 2025-04-07DOI: 10.1016/j.jtice.2025.106115
Wei-Jen Huang , Wen-Hsuan Chiang , Hsiang-Yun Chih , I-Ju Liu , Jeng-Sen Tseng , Tsung-Ying Yang
Background
The resistance of non-small cell lung cancer (NSCLC) to certain chemotherapy reagents is one of the hurdles to potent lung cancer treatment.
Methods
To amplify the cytotoxicity of doxorubicin (DOX), a frequently utilized chemotherapy drug, against NSCLC, the DOX-encapsulated hybrid nano-assemblies with folate receptor-targeting ability were fabricated using a one-step and organic solvent-free method. The amphiphilic d-α-tocopheryl polyethylene glycol succinate (TPGS) was conjugated with pemetrexed (PEM, folate analog) by esterification. Through the electrostatic and π-π stacking interactions between tannic acid (TA) and DOX, the TA/DOX nano-assemblies were attained and then coated with TPGS-PEM conjugates to obtain TA/DOX@TPGS-PEM nano-assemblies (TDTPNs).
Significant findings
The TDTPNs exhibited a high DOX payload (15.4 wt %) and a well-dispersed spherical shape. Also, the TDTPNs displayed satisfied colloidal stability in the serum-rich milieu and prevented premature DOX leakage. Through folate receptor-mediated endocytosis, the TDTPNs were efficiently internalized by LL/2 cells. Compared to free DOX molecules, the TDTPNs promoted intracellular DOX accumulation upon TPGS-mediated P-glycoprotein inactivation, thus effectively killing LL/2 cells. Furthermore, the TDTPNs exhibited cytotoxicity on LL/2 and PC9 cells superior to TA/DOX@TPGS nano-assemblies (without PEM decoration). These findings indicate that the TDTPNs showed promising potential for enhancing DOX chemotherapy against NSCLC.
{"title":"Tannic acid/doxorubicin hybrid nano-assemblies decorated with D-α-tocopheryl polyethylene glycol succinate-conjugated pemetrexed to treat non-small cell lung cancer","authors":"Wei-Jen Huang , Wen-Hsuan Chiang , Hsiang-Yun Chih , I-Ju Liu , Jeng-Sen Tseng , Tsung-Ying Yang","doi":"10.1016/j.jtice.2025.106115","DOIUrl":"10.1016/j.jtice.2025.106115","url":null,"abstract":"<div><h3>Background</h3><div>The resistance of non-small cell lung cancer (NSCLC) to certain chemotherapy reagents is one of the hurdles to potent lung cancer treatment.</div></div><div><h3>Methods</h3><div>To amplify the cytotoxicity of doxorubicin (DOX), a frequently utilized chemotherapy drug, against NSCLC, the DOX-encapsulated hybrid nano-assemblies with folate receptor-targeting ability were fabricated using a one-step and organic solvent-free method. The amphiphilic <span>d</span>-α-tocopheryl polyethylene glycol succinate (TPGS) was conjugated with pemetrexed (PEM, folate analog) by esterification. Through the electrostatic and π-π stacking interactions between tannic acid (TA) and DOX, the TA/DOX nano-assemblies were attained and then coated with TPGS-PEM conjugates to obtain TA/DOX@TPGS-PEM nano-assemblies (TDTPNs).</div></div><div><h3>Significant findings</h3><div>The TDTPNs exhibited a high DOX payload (15.4 wt %) and a well-dispersed spherical shape. Also, the TDTPNs displayed satisfied colloidal stability in the serum-rich milieu and prevented premature DOX leakage. Through folate receptor-mediated endocytosis, the TDTPNs were efficiently internalized by LL/2 cells. Compared to free DOX molecules, the TDTPNs promoted intracellular DOX accumulation upon TPGS-mediated P-glycoprotein inactivation, thus effectively killing LL/2 cells. Furthermore, the TDTPNs exhibited cytotoxicity on LL/2 and PC9 cells superior to TA/DOX@TPGS nano-assemblies (without PEM decoration). These findings indicate that the TDTPNs showed promising potential for enhancing DOX chemotherapy against NSCLC.</div></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"172 ","pages":"Article 106115"},"PeriodicalIF":5.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786151","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 : 2025-04-06DOI: 10.1016/j.jtice.2025.106118
Bahram Behnajady , Matin Najafi , Saeid Karimi
Background
Sulfide minerals are insoluble in ordinary solvents. In this research, direct chemical leaching of chalcopyrite was conducted in deep eutectic solvent (DES) synthesized by choline chloride and ρ-toluenesulfonic acid (ChCl-PTSA).
Methods
ChCl-PTSA DES was applied to leach the Sungun chalcopyrite concentrate (SCC). Response surface methodology (RSM) was used to investigate the effects of time, temperature, DES to SCC weight ratio (DES/SCC), and stirring speed parameters on Cu and Fe recoveries. Molecular dynamics simulation was used to study the radial distribution function (RDF) through the leaching of SCC.
Significant findings
FTIR analysis proved the synthesis and stability of DES during leaching. SCC characterization via FESEM-EDS before and after leaching via ChCl-PTSA DES proved selective and direct chalcopyrite leaching without oxidant in a non-aqueous medium. Also, silica and sulfide minerals such as pyrite, enargite, and molybdenite remained in the leach residue. Analysis revealed the absence of any passive layer on the particle surface, such as an elemental sulfur or metal-deficient sulfide layer. Molecular dynamics simulations revealed strong attractive interactions between Cu2+ and Fe2+ cations with chloride (Cl⁻) of ChCl, suggesting the formation of metal-chloride complexes. While oxygen atoms in ChCl play a minor role, oxygen within the PTSA OH group exhibits a higher likelihood of complex formation with Cu2+ and Fe2+ cations.
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Pub Date : 2025-04-04DOI: 10.1016/j.jtice.2025.106112
Daniel Arulraj Abraham , Anandhavelu Sanmugam , Kuppusamy Kanagaraj , Abdulrahman I． Almansour , K. Karuppasamy , Akram Alfantazi , Hyun-Seok Kim , Dhanasekaran Vikraman
Background
Inexpensive and environmentally friendly alternatives are needed to replace traditional organic inhibitors, as they are high in cost and pose risks to both human health and the environment. This study evaluated the performance of Cynodon Radiatus (CR) extract and its isolated constituent for inhibiting corrosion under artificial seawater in carbon steel and evaluated the inhibitors in acid-cleaning solutions for desalination plants.
Methods
The inhibitor-isolated constituents were analysed using FTIR spectroscopy. The electrochemical (polarisation, bode plot and impedance spectroscopy) and gravimetric methods were used to evaluate the corrosion inhibition performance and confirm the Langmuir adsorption isotherm. FESEM studies confirmed the development of protective layers under inhibiting conditions.
Significant Findings
The results exposed that the CR plant essences performed as a mixed-type protector along with a high inhibition efficiency (IE) of 96.9 % in an acid-cleaning medium compared to artificial seawater (91.4 %). In addition, the isolated constituents displayed a high IE (97.2 %) compared with whole plant extract under an acid medium. The high IE was credited to the adsorbing of inhibitor molecules by the metal surface as defined in the surface coverage and absorption processes. The Langmuir profile was used to describe the appropriate mechanism for the adsorption process of extract. These results indicate that the extract functions as a powerful and cheapest anticorrosive agent.
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