Article
Chemistry, Physical
Bin Wang, Junze Zhao, Hailong Chen, Yu-Xiang Weng, Hua Tang, Ziran Chen, Wenshuai Zhu, Yuanbin She, Jiexiang Xia, Huaming Li
Summary: The study successfully designed and fabricated a CPDs/Bi4O5Br2 heterojunction with high-efficiency photocatalytic CO2 reduction activity. The composite material demonstrated significantly improved CO production compared to Bi4O5Br2 nanosheets under Xe lamp irradiation, with a 5.43 fold increase. Additionally, the CPDs with up-conversion properties were able to broaden the light utilization range, leading to enhanced CO2 conversion performance at excitation wavelengths greater than 580 nm.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Xiaoli Jin, Jian Cao, Huiqing Wang, Chade Lv, Haiquan Xie, Fengyun Su, Xin Li, Ruixue Sun, Shukui Shi, Mengfei Dang, Liqun Ye
Summary: In this study, an Ag-bridged Z-scheme Bi4O5Br2/AgBr heterostructure was developed for efficient photocatalytic CO2 reduction. The Ag mediator acted as a bridge to shuttle electrons between Bi4O5Br2 and AgBr, effectively separating electron-hole pairs and maintaining strong reduction reaction. The Z-scheme Bi4O5Br2/AgBr heterostructures showed significantly enhanced photocatalytic CO2 reduction performance compared to pristine Bi4O5Br2.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Rui-Tang Guo, Zhe-xu Bi, Zhi-dong Lin, Xing Hu, Juan Wang, Xin Chen, Wei-guo Pan
Summary: In this study, CQDs/Bi12O17Cl2/NiAl-LDH photocatalysts were prepared via a hydrothermal method and exhibited excellent photocatalytic CO2 reduction performance. The CO production rate on C/0.3BOC/LDH reached 16.4 μmol.g(-1)h(-1) without any photosensitizer and sacrificial agent, which is 6.7 times higher than that of the original LDH. The construction of Z-scheme heterojunctions and the unique up-conversion PL behavior of CQDs played important roles in enhancing the photocatalytic performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Environmental
Jinghao Hua, Sheng Feng, Changchang Ma, Haitao Huang, Kai Wei, Xiaojun Dai, Kaidi Wu, Haihong Wang, Zhaowei Bian
Summary: In this study, a novel 2D/2D Z-scheme Bi5O7Br/NiFe-LDH photocatalyst was prepared through self-assembly of NiFe-LDH with Bi5O7Br. The Z-scheme heterojunction promotes the separation of photo-generated charge carriers and the 2D/2D structure enhances the migration rate of interface carriers. The photocatalytic activity experiment showed that the Bi5O7Br/NiFe-LDH photocatalyst exhibited significantly higher efficiency in photocatalytic reduction of CO2 compared to pure NiFe-LDH and Bi5O7Br.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Jie Chen, Yuting Xiao, Nan Wang, Xin Kang, Dongxu Wang, Chunyan Wang, Jiancong Liu, Yuchen Jiang, Honggang Fu
Summary: Using solar energy for CO2 conversion into beneficial fuel is crucial for achieving global carbon neutrality. This study presents a convenient method for in situ exfoliation and conversion, resulting in a novel CeO2/C3N4 heterostructure. The ultrathin porous C3N4 structure increases specific surface area and reduces charge recombination, while well-dispersed CeO2 allows for more charge transfer. The CeO2/C3N4 heterojunction with matched band gaps and a Z-scheme structure enhances CO2 photoreduction performance by 5-fold compared to bulk C3N4.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Physical
Lijun Wu, Song Zheng, Heng Lin, Shun Zhou, Ahmed Mahmoud Idris, Jin Wang, Sheng Li, Zhengquan Li
Summary: A delicate 0D/2D heterojunction of Cs2AgBiBr6/Bi2WO6 (CABB/BWO) was assembled, which exhibits internal electric field and significant spatial charge separation, leading to 7-fold higher photocatalytic activity compared to pristine CABB.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Shuaiqi Gong, Xue Teng, Yanli Niu, Xuan Liu, Mingze Xu, Chen Xu, Lvlv Ji, Zuofeng Chen
Summary: The study describes the fabrication of a step-scheme (S-scheme) 0D/2D hetero-structure with InVO4 QDs and g-C3N4 (CN) ultrathin nanosheets for photocatalytic CO2 reduction, achieving a highly selective reduction of CO2 to CO with good photocatalytic performance. The formation of this heterostructure facilitates the separation of electron-hole pairs and reduces the recombination of charge carriers, contributing to efficient photocatalysis.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Jintao Dong, Sainan Ji, Yi Zhang, Mengxia Ji, Bin Wang, Yingjie Li, Zhigang Chen, Jiexiang Xia, Huaming Li
Summary: The rapid increase in energy shortage and ecological environmental pollution has brought global attention to the utilization of new energy sources and pollution control technologies. Photocatalysis has emerged as a promising approach for environmental governance and energy development due to its low energy consumption and simple operation methods. Constructing a Z-scheme heterojunction in photocatalysts can enhance light absorption, reduce recombination rate of photogenerated electron-hole pairs, and improve photocatalytic performance.
ACTA PHYSICO-CHIMICA SINICA
(2023)
Article
Chemistry, Physical
Puttaswamy Madhusudan, Run Shi, Shengling Xiang, Mengtian Jin, Bananakere Nanjegowda Chandrashekar, Jingwei Wang, Weijun Wang, Ouwen Peng, Abbas Amini, Chun Cheng
Summary: The study demonstrates that the ZCS/Au@CN heterojunction photocatalyst can efficiently convert CO2 into methanol with a high rate. AuNPs play an important role in enhancing the reduction ability of CO2 through rapid electron extraction. This work showcases the potential of using ternary composites to improve the efficiency of photocatalytic CO2 reduction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Multidisciplinary
Ke Su, Su-Xian Yuan, Li-Yuan Wu, Zhao-Lei Liu, Min Zhang, Tong-Bu Lu
Summary: An unprecedented nanoscale Janus Z-scheme heterojunction of CsPbBr3/TiOx is constructed for photocatalytic CO2 reduction. CsPbBr3/TiOx exhibits significantly accelerated interfacial charge transfer compared with CsPbBr3:TiOx counterpart prepared by traditional electrostatic self-assembling. The electron consumption rate of cobalt doped CsPbBr3/TiOx is over 11-fold higher than that of CsPbBr3:TiOx.
Article
Energy & Fuels
Zhao-Lei Liu, Rui-Rui Liu, Yan-Fei Mu, You-Xiang Feng, Guang-Xing Dong, Min Zhang, Tong-Bu Lu
Summary: The in situ controlled growth strategy of lead-free perovskite nanocrystals (Cs3Bi2I9) on Bi2WO6 nanosheets through co-sharing Bi atoms enables intimate contact and strong electron coupling, leading to effective interfacial charge transfer and significant improvement in photocatalytic activity.
Article
Chemistry, Physical
Xiaoxue Zhao, Linlin Sun, Xian Jin, Mengyang Xu, Shikang Yin, Jinze Li, Xin Li, Dong Shen, Yan Yan, Pengwei Huo
Summary: The Z-scheme heterojunction of UiO-66-NH2/Cu2O/Cu effectively enhances the photocatalytic conversion of CO2 to CO, with UiO-66-NH2/Cu2O/Cu-0.39 displaying the best activity. Copper serves as both an electron conductor and an active site for CO2 reduction in this system, leading to superior photocatalytic performance.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Hui Fu, Xiaolei Liu, Yaqiang Wu, Qianqian Zhang, Zeyan Wang, Zhaoke Zheng, Hefeng Cheng, Yuanyuan Liu, Ying Dai, Baibiao Huang, Peng Wang
Summary: This article introduces a bismuth-based perovskite Z-scheme heterojunction composite material with efficient charge separation and strong redox capability for photocatalytic CO2 reduction. The optimal composite material exhibits excellent photocatalytic performance, with a CO yield that is 5.3 times higher than that of Cs3Bi2Br9. With the assistance of the Au cocatalyst, the CO yield of the optimal composite material further increases to surpass the performances of most reported perovskite photocatalytic CO2 reductions.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hao Zhou, Yunfei Wang, Jiang Wu, Wenquan Zhou, Yongfeng Qi, Qizhen Liu, Weiqi Kong, Ahmad Hosseini-Bandegharaei, Like Ma, Tongtong Guan
Summary: This work successfully designed and produced a highly effective photocatalyst for CO2 reduction by keeping in view the suitable band gap width, strong photo-response to visible light, and high photogenerated carrier density of SnS2. The SnS2/CeO2 heterojunction composite photocatalysts were fabricated using a facile in situ hydrothermal synthesis method, and their structure was characterized to confirm enhanced carrier transport efficiency and photocatalytic performance. The 2D/0D structure of the composite material, achieved by loading CeO2 nanoparticles onto SnS2 nanosheets, improved the photo-response range and electron transfer rates.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Physical
Guobin Miao, Min Zhou, Yuyao Zhang, Zifan Yang, Yueli Liu
Summary: This study reports the use of 0D/2D CsPbBr3 quantum dot/CuCo2O4 nanosheet composites for photocatalytic CO2 reduction. These composites exhibit strong light absorption performance and enhanced photocatalytic activity, making them promising for generating renewable clean fuels.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Junze Zhao, Mengxia Ji, Hailong Chen, Yu-Xiang Weng, Jun Zhong, Yingjie Li, Shengyao Wang, Ziran Chen, Jiexiang Xia, Huaming Li
Summary: A novel interfacial C-S bond modulated Z scheme heterojunction photocatalyst is constructed to accelerate the photogenerated electron transfer, leading to enhanced CO2 reduction conversion efficiency. The photocatalytic CO2 conversion to CO yield of the composite is 5 and 4-fold of Bi19S27Br3 and g-C3N4, respectively, without the addition of sacrificial agent or photosensitizer.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Qingsong Hu, Jintao Dong, Yong Chen, Jianjian Yi, Jiexiang Xia, Sheng Yin, Huaming Li
Summary: In this study, MIL-125(Ti)/BiOI nanocomposite was synthesized and applied for the adsorption and degradation of specific organic contaminants in water. The nanocomposite exhibited high adsorption capacity and photodegradation rate due to the advantageous interface contact and electron transfer of MIL-125(Ti) and BiOI. This research extends the knowledge in constructing bifunctional nanocomposites with potential applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Zhiyuan Pang, Bin Wang, Xingwang Yan, Chongtai Wang, Sheng Yin, Huaming Li, Jiexiang Xia
Summary: This study successfully designed a novel Sillen-structured multimetal high entropy oxyhalide material, which combines the benefits of high stability and more active sites with improved migration and separation of photogenerated electrons, showing promising catalytic activity for organic pollutants degradation.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Junze Zhao, Gaopeng Liu, Yi Zhang, Jintao Dong, Yu Wang, Yunmiao Liu, Huaming Li, Jiexiang Xia
Summary: This study improves the activity of the photo-Fenton catalyst by synthesizing MoS2/FeOCl (MS/FOC) heterojunction. The results show that with the assistance of MS, MS/FOC has higher charge transfer efficiency and can efficiently degrade pollutants in water.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Inorganic & Nuclear
Sainan Ji, Jintao Dong, Mengxia Ji, Wenjuan Zou, Sheng Yin, Zhigang Chen, Jiexiang Xia
Summary: This study synthesized W18O49/BiOBr Z-scheme heterojunction photocatalyst using a mechanical ball milling method. The synthesized catalyst exhibited enhanced visible light absorption and rapid photogenerated electrons migration, leading to highly efficient degradation of methyl orange and tetracycline hydrochloride.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xin Chen, Gaopeng Liu, Xinyuan Xu, Bin Wang, Shi-Xin Sun, Jiexiang Xia, Huaming Li
Summary: In this study, an oxygen vacancies mediated Bi12O17Cl2 ultra-thin nanobelt (ROV Bi12O17Cl2) was successfully fabricated via solvothermal method. The ROV Bi12O17Cl2 exhibited superior photocatalytic performance for colored organic pollutants degradation and refractory antibiotics removal.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Zihan Liu, Mengxia Ji, Junze Zhao, Yi Zhang, Xing Sun, Yifan Shao, Huaming Li, Sheng Yin, Jiexiang Xia
Summary: This study establishes a directional electron transfer channel by decorating N-doped carbon quantum dots (N-CQDs) on the surface of Bi4MoO9 nanoparticles, improving the participation of active electrons in CO2 reduction. The results show that N-CQDs/Bi4MoO9 composites significantly enhance charge separation efficiency and achieve a higher CO yield under Xe light illumination in the presence of pure water.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Environmental Sciences
Zhiyuan Pang, Bin Wang, Xingwang Yan, Yingjie Hua, Sheng Yin, Huaming Li, Jiexiang Xia
Summary: The Sillen-structured bimetallic oxyhalide CdBiO2Br was successfully synthesized using a simple solvothermal method in the presence of a reactive ionic liquid. The introduction of CdBiO2Br shortened the distance between layers, facilitating the migration and separation of photogenerated carriers and promoting the generation of reactive oxygen species. This study provides a feasible scheme for the research and development of new layered photocatalytic materials.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xingwang Yan, Bin Wang, Junze Zhao, Gaopeng Liu, Mengxia Ji, Xiaolin Zhang, Paul K. Chu, Huaming Li, Jiexiang Xia
Summary: In this study, hierarchical columnar ZnIn2S4/BiVO4 (ZIS/BVO) Z-scheme composite was designed to achieve high-speed directional migration and separation of photogenerated carriers at heterointerfaces. The structure and performance of the composite material were verified by spectroscopy and microscopy. The optimized composite material exhibited enhanced photocatalytic mineralization antibiotic properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Jun Di, Yan Li, Yi Zhang, Yiling Liu, Suwei Wang, Yao Wu, Huaming Li, Jiexiang Xia
Summary: Novel graphene-like boron nitride (BN)/Bi3O4Br photocatalysts were synthesized controllably for the first time through a facile solvothermal method. Layer contact stacking between graphene-like BN and ultrathin Bi3O4Br was achieved with strong interaction. Dehalogenation and ultrathin structure of Bi3O4Br were designed to enhance visible light absorption and accelerate charge transfer, resulting in greatly improved photocatalytic performance. Graphene-like BN acted as a surface electron-withdrawing center and adsorption center, facilitating molecular oxygen activation. O-2(center dot-) was identified as the main active species during the degradation process.
TRANSACTIONS OF TIANJIN UNIVERSITY
(2023)
Article
Chemistry, Physical
Yi Zhang, Jun Di, Xingwang Zhu, Mengxia Ji, Chao Chen, Yanan Liu, Lina Li, Tiange Wei, Huaming Li, Jiexiang Xia
Summary: This study designs oxygen-vacancy-rich Bi2Sn2O7 (BSO) and Bi-O vacancy pairs on ultrathin BiOBr (BOB) to construct a chemical bonding interface, forming a Bi2Sn2O7/BiOBr (BSOB) S-scheme heterojunction. BSOB exhibits efficient photocatalytic nitrogen reduction performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Xingwang Yan, Xiaolin Zhang, Bin Wang, Ziran Chen, Junze Zhao, Gaopeng Liu, Dan Li, Qingdong Ruan, Liangliang Liu, Yue Xu, Mengxia Ji, Paul K. Chu, Huaming Li, Jiexiang Xia
Summary: Efficient heterojunction photocatalysts with spatial separation of photogenerated carriers are crucial to photo-catalysis. The unique carbonized polymer dots/ZnIn2S4 (CPDs/ZIS) Z-scheme heterojunction is designed to realize efficient spatial directional separation of photogenerated carriers and deliver enhanced photocatalytic performance in pollutant degradation. The CPDs generate more superoxide radicals to facilitate mineralization of organic pollutants and retain more holes for oxidation, while the Z-scheme migration mechanism of photogenerated carriers in the CPDs/ZIS composite preserves the original valence band potential of ZIS.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Wenjuan Zou, Jintao Dong, Mengxia Ji, Bin Wang, Yingjie Li, Sheng Yin, Huaming Li, Jiexiang Xia
Summary: Bi25FeO40-B nanoparticles prepared via the mechanical ball-milling method possess abundant oxygen vacancies and show high reactive oxygen species production performance. The H2O2 decomposition efficiency can reach 55.3% using Bi25FeO40-B catalyst, which is much higher than that of Bi25FeO40 prepared by the traditional hydrothermal method. The Bi25FeO40-B/H2O2 heterogeneous Fenton system demonstrates efficient performance for simultaneous oxidation of tetracycline hydrochloride (TCH) and reduction of Cr(VI), capable of removing 75.2% of 50 mg/L TCH and 93.0% of 20 mg/L Cr(VI) at pHinitial= 7, respectively.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Jun Di, Xingwang Zhu, Gazi Hao, Chao Zhu, Hailong Chen, Qiaoxi Liu, Ruihuan Duan, Hongwei Hu, Yi Zhang, Jun Xiong, Ran Long, Jiexiang Xia, Yu-Xiang Weng, Wei Jiang, Zheng Liu
Summary: In this study, a synchronous surface and interfacial dual polarization strategy was developed to improve the charge separation in photocatalytic CO2 reduction. This strategy involves the formation of Bi-O vacancy pairs in Bi24O31Br10 atomic layers, which trigger strong coupling with black phosphorus (BP) and create a restructured BP-Bi24O31Br10 configuration with a charge-redistributed interface. This configuration promotes a low CO2 activation energy barrier, stabilizes COOH* intermediates, and decreases the rate-determining step energy barrier, resulting in significantly higher CO generation rate compared to defective and defect-poor Bi24O31Br10.
Article
Chemistry, Inorganic & Nuclear
Xingwang Yan, Bin Wang, Mengxia Ji, Qi Jiang, Gaopeng Liu, Pengjun Liu, Sheng Yin, Huaming Li, Jiexiang Xia
Summary: Designing simple, efficient, and environmentally friendly methods for constructing high-efficient photocatalysts is an important strategy for promoting the further development of the photocatalysis field. In this study, flower-like carbon quantum dots (CQDs)/BiOBr composite photocatalysts were successfully prepared through in-situ synthesis by mechanical ball milling in the presence of an ionic liquid. The CQDs/BiOBr composites exhibited higher photo-degradation performance for tetracycline (TC) compared to BiOBr monomer and commercial Bi2O3 under visible light irradiation. Additionally, the introduction of CQDs significantly enhanced the photocatalytic performance of pure BiOBr by effectively separating electrons and holes, and inhibiting their recombination. Possible degradation pathways were also proposed based on the analysis of intermediates and the identification of major active species.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2022)
Article
Engineering, Chemical
Qing Han, Mengqing Shi, Linkai Han, Di Liu, Mingwei Tong, Yuxin Xie, Zhonghua Xiang
Summary: Developing highly efficient bifunctional oxygen electrocatalysts is crucial for zinc-air flow batteries. Metal-organic frameworks (MOFs) and covalent organic polymers (COPs) have emerged as promising alternatives due to their designable and controllable atomic-level structures. However, their catalytic performances are limited by conductivity and catalytic activity. In this study, nanosheet FeNi-MOF and iron phthalocyanine rich COP hybrid materials are assembled through the pi-pi stacking effect to create highly efficient bifunctional electrocatalysts. The resulting catalyst exhibits superior catalytic performance and stability, making it a promising candidate for zinc-air flow batteries.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Daria Grigorash, Dmytro Mihrin, Rene Wugt Larsen, Erling H. Stenby, Wei Yan
Summary: The article introduces a new approach to describe the cross-association between molecules, allowing for the simulation of weakly bound molecular complexes with different conformations in mixtures. By incorporating this approach into the equation of state, accurate predictions of vapor-liquid equilibrium and liquid-liquid equilibrium can be made. The new method is validated through experiments on alcohol and acid mixtures, with the results compared to experimental data, demonstrating its accuracy and reliability.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mohammed Al-Sharabi, Daniel Markl, Vincenzino Vivacqua, Prince Bawuah, Natalie Maclean, Andrew P. E. York, Axel Zeitler
Summary: This study used terahertz pulsed imaging to investigate the transport process of different solvents into ceramic catalytic materials. The results showed that the heating rate of the samples influenced the water transport rate, while the viscosity of 1-octanol slowed down its transport.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chukwunonso Anyaoku, Sati Bhattacharya, Rajarathinam Parthasarathy
Summary: This study aimed to enhance understanding of settling dynamics in viscoelastic fluids by developing a semi-empirical correlation and a dimensionless ratio, which accurately described the characteristics of settling suspensions.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Antti I. Koponen, Janika Viitala, Atsushi Tanaka, Baranivignesh Prakash, Olli-Ville Laukkanen, Ari Jasberg
Summary: This study focuses on the development of foam application chemicals for the paper and board industry. The research explores the rheology of the polyvinyl alcohol foam used in the process. Measurements were conducted to determine the foam viscosity and slip flow. The results suggest that slip flow contributes significantly to the total flow rate, and the obtained viscosity and slip models provide a solid foundation for industrial processes.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Dalei Sun, Jinghui Cai, Yating Yang, Zhiwu Liang
Summary: In this study, Fe-doped alpha-Bi2O3 catalysts with different Fe/Bi molar ratios were synthesized and utilized in the carbonylation of isobutyl amine with CO2. The results showed that Fe doping significantly enhanced the catalytic abilities of alpha-Bi2O3.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Yuan Tian, Xinxin Wang, Yanrong Liu, Wenping Hu
Summary: This paper predicts the solubility of nitrogen gas in ionic liquids (ILs) using two quantitative structure-property relationship (QSPR) models. By combining machine learning methods and ionic fragments contribution method, the accuracy and reliability of the prediction models are improved.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Liwang Wang, Wei Liu, Pan Yang, Yulong Chang, Xiaoxu Duan, Lingyu Xiao, Yaoming Hu, Jiwei Wu, Liang Ma, Hualin Wang
Summary: This study investigates the effective phase interfacial area (ae) of hydro-jet cyclones at different injection angles. The results show that a 45 degrees upward incidence angle yields the most favorable flow field characteristics for efficient mass transfer. The significant enhancement in ae of the hydro-jet cyclones offers the advantage of reducing equipment volume and cost savings.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chuanjun Wu, Jiangzhi Chen, Jiyue Sun, I-Ming Chou, Shenghua Mei, Juezhi Lin, Lei Jiang
Summary: In this study, the solubility of H2S hydrate in water was measured using Raman spectroscopy. The results showed that the solubility increases with temperature under certain equilibrium conditions, and the solubility also depends on pressure and temperature under different equilibrium conditions. A thermodynamic model based on the van der Waals-Platteeuw theory was developed to predict the solubility, demonstrating its accuracy.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Lorenzo Brivio, Serena Meini, Mattia Sponchioni, Davide Moscatelli
Summary: This study investigates the influence of three main parameters and proposes a kinetic model to predict the optimal operating conditions for high yield of dimethyl terephthalate (DMT) in the chemical recycling process of polyethylene terephthalate (PET).
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Hongju Lin, Fanhui Liao, Yanchang Chu, Mingyu Xie, Lun Pan, Yuanyuan Wang, Lijian Leng, Donghai Xu, Le Yang, Gangfeng Ouyang
Summary: A honeycomb NiCo/C-Na catalyst with a micro-meso-macroporous structure has been fabricated and shown to have significantly higher catalytic activity for the decarboxylation of fatty acids. It also proves to be efficient in upgrading sludge HTL bio-crude, resulting in a biofuel with decreased viscosity and increased density.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Xiaoxian Li, Rui Li, Min Lin, Mingde Yang, Yulong Wu
Summary: A series of coated non-noble metal porous carbon catalysts were synthesized and applied to the aqueous-phase deoxygenation of algal bio-oil. One of the catalysts showed excellent deoxygenation selectivity and catalytic activity at 250 degrees C. The catalyst exhibited good hydrothermal stability and the reaction mechanism was proposed based on product analysis and active site analysis.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
M. V. Chudakova, M. V. Popov, P. A. Korovchenko, E. O. Pentsak, A. R. Latypova, P. B. Kurmashov, A. A. Pimenov, E. A. Tsilimbaeva, I. S. Levin, A. G. Bannov, A. V. Kleymenov
Summary: A series of catalysts with different potassium contents were prepared using solution combustion synthesis and characterized using various techniques. The results showed that the potassium content affected the phase composition and texture of the catalysts. The addition of a small amount of potassium resulted in a change in particle size distribution, leading to higher hydrogen yield. The Ni-1%K2O/Al2O3 catalyst exhibited the highest hydrogen yield at temperatures of 675 and 750 degrees Celsius.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Aliakbar Roosta, Nima Rezaei
Summary: In this study, we modified the electrolyte cubic plus association equation of state (e-CPA EoS) and integrated it with two electrical conductivity models to estimate the electrical conductivity of 11 monovalent electrolyte solutions in water. The modified e-CPA model demonstrated better performance and the hybridization with electrical conductivity models resulted in two predictive models for estimating the electrical conduction of dilute and concentrated electrolyte solutions. These predictive models showed relative average percentage deviations (AARD) of 11.15% and 13.87% over wide ranges of temperature and electrolyte concentration.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)
