Article
Energy & Fuels
Guozhen Qin, Yining Zhang, Jianfeng Zheng, Yifan Li, Xiaojin Han, Zhanggen Huang
Summary: Iron-based catalysts show great potential for selective catalytic reduction of NOx with NH3 (NH3-SCR) due to their excellent SCR activity, N2 selectivity, and environmental performance. In this study, the reaction pathway of NH3-SCR on the Fe3O4(111) surface was investigated using density functional theory (DFT) and experimental measurements. The research findings revealed that the surface favored the adsorption of NO molecules and followed the NO activation mechanism.
Article
Chemistry, Physical
Weibin Chen, Shenzhen Xu
Summary: CeO2-based oxides have potential applications in the selective catalytic reduction (SCR) of nitrogen oxides (NOx) with ammonia (NH3-SCR). This study reveals the complete mechanism of NH3-SCR over CeO2 through a combination of experimental and theoretical approaches, and provides design principles for catalysts based on atomic-level understanding of the catalytic mechanisms.
Article
Chemistry, Physical
Tianyu Liu, Ruijie Yang, Guomeng Zhang, Weihong Wu, Zhengda Yang, Riyi Lin, Xinwei Wang, Ye Jiang
Summary: The reaction mechanism over CeO2-TiO2 catalyst involves both E-R and L-H mechanisms, with NH2NO species playing a key role as an intermediate. DFT calculations provide insights into the adsorption energy, activation energy barrier, and reaction heat for various steps in the process.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yan Wang, Tong Shi, Qi-Yuan Fan, Yang Liu, Aiai Zhang, Zhaoqiang Li, Yanheng Hao, Lin Chen, Fenrong Liu, Xiaojun Gu, Shanghong Zeng
Summary: In this study, advanced spectroscopic and computational techniques were used to investigate the surface structure and reaction mechanism of tricomponent cerium-tungsten-titanium catalysts. The introduction of graphene oxide improved the dispersion of W and Ce species and resulted in specific bonding structures. The high dispersion of Ce facilitated the generation of oxygen vacancies, enhancing the adsorption and activation of NO and NH3. Experimental and theoretical evidence supported the feasibility of adsorption at low temperatures and revealed the reaction intermediates and interactions. The findings are important for understanding catalyst performance and developing new catalysts.
Article
Chemistry, Physical
Ye Jiang, Tianyu Liu, Chengzhen Lai, Zhengda Yang, Riyi Lin, Xinwei Wang, Xinbo Zhu
Summary: This study investigated the poisoning mechanism of K2SO4 on CeO2-TiO2 catalyst, finding that K2SO4 can affect the reducibility and surface acidity of the catalyst, inhibit NH3 adsorption, promote NOx adsorption, and decrease the reactivity of newly formed NOx. Additionally, the presence of K+ and SO42- simultaneously had an adverse effect on surface acidity and redox ability of the catalyst.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Ningqiang Zhang, Jiahuan Tong, Shinta Miyazaki, Shirun Zhao, Hiroe Kubota, Yuan Jing, Shinya Mine, Takashi Toyao, Ken-ichi Shimizu
Summary: This study investigates the active sites and reaction mechanism for the selective catalytic reduction of NO by NH3 over phosphate-loaded ceria catalysts. The results reveal the presence of H3PO4 and H2P2O6 species on the catalysts, which interact with Ce4+(OH-) species and undergo reduction/oxidation half-cycles to produce N2, H2O, and Ce3+ species.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Rohil Daya, Dylan Trandal, Unmesh Menon, Dhruba J. Deka, William P. Partridge, Saurabh Y. Joshi
Summary: In this study, a kinetic model is developed for the reduction and oxidation reactions of Cu sites in Cu-SSZ-13. The rate parameters of these reactions are investigated using Fourier transform infrared spectroscopy and spatially resolved mass spectrometry. The model is validated with experimental measurements and successfully predicts the formation and consumption of nitrogen oxides. NH3 release is observed during the oxidation reaction at low temperatures, and the presence of NH3 negatively affects the catalyst's activity. This study provides important insights into the reduction and oxidation mechanisms of Cu-SSZ-13 catalysts.
Article
Energy & Fuels
Yuhan Zhou, Shan Ren, Jie Yang, Weizao Liu, Zenghui Su, Zhichao Chen, Mingming Wang, Lin Chen
Summary: NH3 treatment significantly improves the De-NO efficiency of CeO2 nanorods catalyst, especially in the temperature range of 160-410 degrees C. NH3 treatment promotes the production of Ce3+ on the surface of CeO2 catalyst, leading to more oxygen vacancies and enhanced SCR reaction. Additionally, NH3 treatment disrupts the crystallinity of CeO2 catalyst, enhances its reducibility, and increases the content of active functional groups on the surface.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
Article
Energy & Fuels
Kaiwen Ni, Yuewang Peng, Yuting Wang, Zhiwei Huang, Huawang Zhao, Xiaomin Wu, Guohua Jing
Summary: The development of low-temperature SO2-tolerant catalysts for NOx reduction is a challenging task. In this study, a novel catalyst V2O5-MnO2/3D-CeO2 was successfully prepared and showed high resistance to SO2 in low-temperature SCR.
Article
Engineering, Environmental
Jun Cao, Zhuquan Lu, Liumei Teng, Xu Qiao, Weizao Liu, Hongli Wu, Lijun Jiang, Qirong Wu, Qingcai Liu
Summary: This study investigated the poisoning effects of K2O and PbO on the NH3-SCR performance of TiO2-CeO2 catalyst, and found a stronger toxicity when both were introduced simultaneously, hindering electron transfer and surface acidity. Furthermore, the combination of K and Pb reduced the activation performance of NOx species and did not alter the Langmuir-Hinshelwood mechanism of the catalyst.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Yajun He, Jun Liu, Guojie Zhang, Ying Wang, Yuqiong Zhao, Guoqiang Li, Yongfa Zhang, Dengke Lv
Summary: The establishment of strongly coupled heterojunction interfaces between composite metal oxide interfaces is crucial for enhancing the activity of CO-SCR catalysts. A CuCoO2 modified CeO2 catalyst (H-CuCo-CeO2) was synthesized and showed excellent low-temperature activity, achieving 100% NO conversion at 175 degrees C, and excellent resistance to H2O and SO2. Through various tests, the influence of the heterojunction interfaces on the reaction performance was investigated, and it was found that the modification of the CuCoO2 structure promoted the migration of Cun+ species, increased surface active sites, and caused the formation of oxygen vacancies.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yin Chen, Zhuofan Chen, Chaoyue Zhang, Lin Chen, Jiehong Tang, Yanfen Liao, Xiaoqian Ma
Summary: This study investigates the role and reaction mechanism of Mo/Ni in the MPC process by modifying the WVTiOX catalyst with Mo/Ni. The results show that Mo/Ni doping significantly improves the MPC performance of the catalyst, increasing the number of acid sites and active oxygen ratio on the surface. In addition, the NH3-SCR process of the catalyst is mainly governed by the L-H mechanism, as confirmed by computational and experimental results.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Yangfan Chen, Yuchen Zhang, Xin Feng, Jiangling Li, Weizao Liu, Shan Ren, Jian Yang, Qingcai Liu
Summary: In this study, Fe2O3-containing solid waste derived from Zn extraction process was used as the base material for catalyst preparation. The introduction of OD CeO2 quantum dots onto Fe2O3-containing solid waste nanorods significantly enhanced the NH3-SCR catalytic activity, N2 selectivity, and SO2 tolerance of the catalyst.
Article
Chemistry, Physical
Hiroe Kubota, Yuan Jing, Li Wan, Jiahuan Tong, Ningqiang Zhang, Shinya Mine, Takashi Toyao, Ryo Toyoshima, Hiroshi Kondoh, Davide Ferri, Ken-ichi Shimizu
Summary: In this study, operando spectroscopies were used to investigate the selective catalytic reduction of NO with NH3 over WO(3)-loaded CeO2. The reduction/oxidation half-cycles were elucidated through in situ Ce and W L-3-edge X-ray absorption near-edge structure, UV-vis, and infrared spectroscopies. The Ce4+ species were reduced by NO + NH3 to yield N-2 and Ce3+ species in the reduction half-cycle, which were then reoxidized by O-2 in the oxidation half-cycle. The oxidation state of the W(6+) species remained unchanged under redox conditions. IR and theoretical results suggested that the reduction half-cycle started with the reaction of W6+-OH and adjacent Ce(4+)-O with NO to afford Ce3+ species and gaseous HONO, which was then converted to NO+ species on the catalyst. The NO+ species reacted with NH3 to generate N-2.
Article
Chemistry, Physical
Gabriele Contaldo, Matteo Ferri, Chiara Negri, Isabella Nova, Matteo Maestri, Enrico Tronconi
Summary: Dispersion corrected density functional theory calculations reveal that the presence of H2O in the Reduction Half-Cycle (RHC) of NH3-SCR decreases the rate and activation energy by enthalpic stabilization of the kinetically-relevant transition state (TS). Non-specific dispersion forces play a crucial role in reducing the activation enthalpy. However, the enthalpic stabilization is counteracted by additional entropy losses caused by the presence of H2O. The calculated enthalpy and entropy changes agree well with experimental measurements, emphasizing the importance of molecular scale description of reaction environments.
Article
Chemistry, Physical
Warinthon Chansen, Jen-Shiang K. Yu, Nawee Kungwan
Summary: A systematic screening of fluorescence probes based on excited-state intramolecular proton transfer of 2' hydroxychalcone derivatives was conducted using theoretical calculations, revealing that replacing the hydrogen atom on the amine group with a tosyl group can strengthen the intramolecular hydrogen bond, reduce the proton transfer barrier, and facilitate the ESIPT process.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Physical
Ryo Toyoshima, Jumpei Kawai, Kazuhisa Isegawa, Hiroshi Kondoh, Anchalee Junkaew, Akira Nakayama, Takehiro Asano, Masazumi Tamura, Yoshinao Nakagawa, Mizuho Yabushita, Keiichi Tomishige
Summary: Characterization of Mo species on Rh metal particles in Rh-MoOx/C catalyst was conducted using in situ ambient-pressure X-ray photoelectron spectroscopy (AP-XPS) and density functional theory (DFT) calculations. The presence of monolayer Mo species on metallic Rh particle surface was confirmed after reduction, and MoO(OH)(2) was identified as the most stable species under catalytic reaction conditions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Biochemistry & Molecular Biology
Khanittha Kerdpol, Rathawat Daengngern, Chanchai Sattayanon, Supawadee Namuangruk, Thanyada Rungrotmongkol, Peter Wolschann, Nawee Kungwan, Supot Hannongbua
Summary: The study investigated the effect of microsolvation on the excited-state proton transfer (ESPT) reaction of 3-hydroxyflavone (3HF) and its inclusion complex with gamma-cyclodextrin (gamma-CD). It was found that in the S-1 state, the intermolecular hydrogen bonding between 3HF and gamma-CD, as well as the intramolecular hydrogen bonding within 3HF, became more stable, leading to an increased quantum yield of keto emission of 3HF when complexing with gamma-CD in the experiment.
Article
Chemistry, Physical
Monrudee Liangruksa, Patipan Sukpoonprom, Anchalee Junkaew, Worachote Photaram, Chawarat Siriwong
Summary: The research shows that modifying the surface of zinc oxide with palladium (Pd) can enhance gas sensing properties, particularly for hydrogen and ethanol. This modification can increase the sensitivity of the zinc oxide surface to gases, potentially improving the accuracy and speed of gas detection in energy production.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Warinthon Chansen, Nawee Kungwan
Summary: This study theoretically explored the excited-state intermolecular proton transfer mechanism of 2,7-diazaindole with water wires containing one or two shells. It found that the multiple proton transfer through the first hydration shell is the easiest process to occur with the lowest barrier and a highly exothermic reaction.
JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Chemistry, Physical
Wanwitoo Wanmolee, Narongrit Sosa, Anchalee Junkaew, Saran Youngjan, Christophe Geantet, Pavel Afanasiev, Eric Puzenat, Dorothee Laurenti, Kajornsak Faungnawakij, Pongtanawat Khemthong
Summary: In situ characterization is essential for the development of heterogeneous catalysts. This study used XAS and XRD techniques to investigate the synthesis of Cu3P/SiO2 and its catalytic performance in lignin-derived bio-oil conversion. The findings can contribute to the enhancement of metal phosphide-based catalysts for converting lignin-derived bio-oils into biofuels in the future.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Bunyarat Rungtaweevoranit, Kawisa Chaipojjana, Anchalee Junkaew, Sutarat Thongratkaew, Sarawoot Impeng, Kajornsak Faungnawakij
Summary: Determining the roles of surface functionality of heterogeneous acid catalysts is crucial for many industrial catalysts. This study utilizes the structure of metal-organic frameworks (MOFs) to identify key features for the conversion of d-xylose into lactic acid. Experimental and spectroscopic evidence suggests that the combination of Lewis acidity and adjacent hydroxy sites is critical for achieving high lactic acid yields.
Article
Chemistry, Physical
Sutarat Thongratkaew, Sirapassorn Kiatphuengporn, Anchalee Junkaew, Sanchai Kuboon, Narong Chanlek, Anusorn Seubsai, Bunyarat Rungtaweevoranit, Kajornsak Faungnawakij
Summary: In this study, the selective hydrogenation of furfural to furfuryl alcohol over CuAl2O4 catalysts was investigated using solvents with varying chemical properties. It was found that branched alcohols resulted in higher furfuryl alcohol yields compared to linear alcohols. Furthermore, excellent furfuryl alcohol yields of 96% were achieved when the reactions were performed in nonane and decane solvents. In situ FTIR analysis revealed that the carbonyl group of furfural was preferentially adsorbed, leading to enhanced catalyst performance. The integration of this reaction separation concept allows for efficient production of furfuryl alcohol in immiscible solvents, minimizing downstream processes.
CATALYSIS COMMUNICATIONS
(2022)
Article
Optics
Narissa Kanlayakan, Rusrina Salaeh, Komsun Chaihan, Warinthon Chansen, Nawee Kungwan
Summary: This study theoretically evaluates the electronic properties and excited-state intramolecular proton transfers of a new series of designed molecules. The molecules exhibit NIR fluorescence and large Stokes shifts, making them potential candidates for NIR fluorescent probes.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Physical
Maneerat Chotsawat, Lappawat Ngamwongwan, Paratee Komen, Pariwut Falun, Sirichok Jungthawan, Anchalee Junkaew, Suwit Suthirakun
Summary: In this study, the effects of oxygen vacancies on Li insertion, Li diffusion, and electronic conduction in LiV3O8 cathode materials were explored using the first-principles method. It was found that oxygen vacancies can affect the formation and mobility of polarons, and therefore influence the electronic conductivity and ion transport kinetics of the material. It is suggested that enhancing electronic conductivity and maintaining ion diffusivity can be achieved by controlling the V-O concentration.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Chadawan Khamdang, Sirisak Singsen, Apinya Ngoipala, Ittipon Fongkaew, Anchalee Junkaew, Suwit Suthirakun
Summary: In this study, a design of a 2D/2D g-C3N4/ZnO heterostructure was proposed to achieve an S-scheme heterojunction, resulting in enhanced photocatalytic activity and sunlight utilization. The heterostructure effectively separates electrons and holes, leading to improved photocatalytic activity, and has great potential for applications.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Tinnakorn Saelee, Maneerat Chotsawat, Meena Rittiruam, Suwit Suthirakun, Supareak Praserthdam, Nirun Ruankaew, Patcharaporn Khajondetchairit, Anchalee Junkaew
Summary: Ammonia synthesis is a vital process for various applications, and the electro- and photocatalytic nitrogen reduction reactions (NRRs) offer sustainable alternatives to the conventional Haber-Bosch process. However, these catalytic processes face challenges of low selectivity and efficiency. This perspective discusses recent advances in designing 2D/2D heterojunction catalysts using first-principles approach for efficient electro- and photo-NRR.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Khanittha Kerdpol, Rathawat Daengngern, Nawee Kungwan
Summary: Detailed pictures of excited-state proton transfer reactions in 8-hydroxyquinoline and its water clusters were systematically investigated using DFT and TD-DFT methods. The study revealed that intraHB and interHB interactions between 8HQ and water clusters become stronger in the first excited state, and ESIntraPT and ESInterPT reactions can occur in femtoseconds. The simulations also showed that the number of water molecules affects the tautomer species and initiates multiple proton transfer reactions. These results provide insights into the phototautomerization process and photodynamics that cannot be observed experimentally.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Multidisciplinary
Wan Li, Pongsakorn Chasing, Phattananawee Nalaoh, Thanyarat Chawanpunyawat, Nuttapong Chantanop, Chattarika Sukpattanacharoen, Nawee Kungwan, Praweena Wongkaew, Taweesak Sudyoadsuk, Vinich Promarak
Summary: Two new deep-blue emitters, HO-PIAC and PIAC, were designed and synthesized for high-efficiency TTA-OLEDs. Both molecules exhibited deep-blue color emissions with good hole mobility and high stability. The HO-PIAC-based device showed superior EL performance with high luminance, efficiency, and singlet exciton utilization.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Jakkapan Kumsampao, Chaiyon Chaiwai, Chattarika Sukpattanacharoen, Thanyarat Chawanpunyawat, Phattananawee Nalaoh, Pongsakorn Chasing, Nawee Kungwan, Taweesak Sudyoadsuk, Vinich Promarak
Summary: A series of ESIPT o-hydroxyphenyl phenanthroimidazole derivatives were designed and synthesized with high solid-state photoluminescence quantum yields, brightness, and luminous efficiency. These molecules exhibited exceptional ESIPT properties and were successfully utilized as emitters in organic light-emitting diodes with high efficiency and brightness, representing an advancement in the development of ESIPT molecules for fluorescent OLEDs.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)