Article
Chemistry, Physical
Gwang-Nam Yun, Ki-Duk Kim, Yong-Kul Lee
Summary: A highly dispersed nickel phosphide catalyst supported on SBA-15 was prepared and tested for the hydrotreating of tire pyrolysis oil. The catalyst showed high HDS and HDN conversion rates, comparable to a commercial NiMoS catalyst under the same conditions, indicating its potential for use in industrial applications.
Article
Chemistry, Physical
Jihyun Kim, Yong-Kul Lee
Summary: NiMoS and CoMoS catalysts were synthesized and applied to the hydrotreating (HDT) of FCC light cycle oils (FCC-LCO) at 613 K and 8.6 MPa H-2. The individual and competitive reactivities of sulfur (S) and nitrogen (N) compounds in the HDS and HDN reactions were investigated using S and N model compounds. The NiMoS catalyst showed better activity in the HDN of LCO and HDS of LCO compared to the CoMoS catalyst.
Article
Chemistry, Physical
Zohal Safaei Mahmoudabadi, Alimorad Rashidi, Mohammad Panahi
Summary: Highly active ReS2 nanocatalysts were prepared and applied in upgrading heavy crude oil, showing significant catalytic activities. RSM technique was used to investigate the effects of temperature, pressure, and dosage of catalyst on reaction performance, with optimal conditions yielding highest HDS activity. Additionally, the influence of ReS2 nanorods catalyst on HDN of heavy crude oil was studied, revealing highest efficiency under specific conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Hanzhang Gong, Zhiwei Xiao, Yuan Zhuang, Shuqin Liang, Xiang Li, Weibo Zheng, Aijun Duan, Xiao Zhang, Jian Liu
Summary: A core-shell structured material consisting of a mesoporous aluminosilicate shell and mesopore-containing beta zeolite core was synthesized using triblock copolymer as template. The resulting Ni2P catalyst showed higher reaction rate constant and TOF in quinoline hydrodenitrogenation compared to other supported Ni2P catalysts. The unique properties of the core-shell support contributed to the smaller Ni2P cluster size and enhanced catalytic activity.
Article
Environmental Sciences
Wonjun Choi, Hyeonmin Jo, Jae-Wook Choi, Dong Jin Suh, Hyunjoo Lee, Changsoo Kim, Kwang Ho Kim, Kwan-Young Lee, Jeong-Myeong Ha
Summary: In this study, Ru-added transition metal catalysts were used for the mild hydrotreating of acid-rich biomass pyrolysis oil, leading to stabilization of the oil, reduction in acidity, and higher organic compound yields. Bimetallic catalysts showed good decarboxylation activity for the removal of carboxylic acids and were deemed suitable for feedstocks requiring suppression of organic reactant loss. The improved catalytic activity of Ru-added transition metals can be attributed to their high acid site densities and enhanced hydrogenation activities.
ENVIRONMENTAL POLLUTION
(2021)
Review
Chemistry, Applied
Laetitia Oliviero, Francoise Mauge, Pavel Afanasiev, Camila Pedraza-Parra, Christophe Geantet
Summary: To meet the growing demand for cleaner fuels, more active HDT catalysts should be developed. Organic molecules are applied to improve the catalysts, with additives enhancing the dispersion of the active phase and interactions with the support.
Article
Environmental Sciences
Jing Gao, Yang Cao, Tao Wu, Yujiang Li
Summary: In this study, roasted spent HDS ash (sHDSc-A) was used to catalytically pyrolyze oily spent HDS catalysts (sHDSc) to enhance the yield and quality of pyrolysis oil. sHDSc-A promoted the decomposition of coke in oily sHDSc, leading to increased oil and gas recovery. Additionally, sHDSc-A improved the quality of the pyrolysis oil by inhibiting alkane aromatization, increasing the content of long-chain alkanes, and reducing heteroatomic compounds. Metal oxides in sHDSc-A, such as Al2O3, Fe2O3, MoO3, and NiO, played a significant role in the catalytic process. This study demonstrates the potential of recycling oily spent HDS catalysts and provides a waste-treatment-waste strategy for energy recovery and waste reuse.
ENVIRONMENTAL RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Yuchao Yao, Xiaoxi Ni, Dongyan Xu, Xiaojin Li
Summary: Structural and morphological modulations are crucial for increasing the surface active sites of semiconductor photocatalysts. In this study, a novel CdS/Ni3S4/Ni2P@C heterostructure was fabricated by preparing carbon-encapsulated Ni3S4/Ni2P with a high surface area. The assembly of CdS nanowires and highly porous Ni3S4/Ni2P@C enhanced the visible-light response capability of the catalyst. The hydrogen production rate of the heterostructure catalyst was 26 times higher than that of CdS alone in a photolytic aquatic hydrogen system.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Josef Blazek, Daria Toullis, Petr Straka, Martin Stas, Pavel Simacek
Summary: This study demonstrates the co-hydrotreating of rapeseed oil and a petroleum feedstock, showing that the catalyst had high hydrogenation activity and the hydrogen consumption increased with pressure. The conversion of rapeseed oil required higher hydrogen consumption compared to the hydrotreating of the petroleum feedstock.
Article
Chemistry, Analytical
Qingquan Hao, Zailing Yang, Bencheng Wu, Jianhua Zhu, Zhi Li, Jinlong Liu, Ling Ma
Summary: The deactivation mechanism of a nickel-based catalyst in the hydrotreating of waste plastic pyrolysis oil (WPPO) was investigated. It was found that the deactivation of the catalyst was related to the presence of chlorides, nitrides, and sulfides in WPPO. Chlorine from chlorides reacted with active sites on the catalyst, causing sintering and loss of active components. Additionally, the formation of NH4Cl crystals reduced the surface area and pore volume of the catalyst, leading to rapid deactivation.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Physical
Xincheng Li, Ruiyi Wang, Jin Zhang, Jing Wang, Yunwei Wang, Zhanfeng Zheng
Summary: This study presents the design of an efficient photocatalyst, Ni2P/TiO2, for the selective hydrogenation of phenylacetylene to styrene. The catalyst exhibits excellent photocatalytic activity and selectivity, attributed to the isolation and electronic effect of P introduced in the catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Applied
M. Slezackova, A. Peller, J. Mikulec, M. Banic, J. Blasko, E. Hajekova
Summary: Inedible camelina oil (CSO) can be used as diesel components after hydrotreatment. Under suitable conditions, CSO with high unsaturation can be converted into alkanes, aromatics and higher olefins. The co-hydrotreatment with paraffinic solvents can achieve high triacylglyceride conversion into hydrocarbons.
Article
Engineering, Chemical
Xiaoyuechuan Ma, Shusheng Pang, Qixiang Xu
Summary: This study investigates the kinetics and characteristics of carbonaceous deposits formed during hydrotreating of bio-oil derived from fast pyrolysis of rice husk, using a commercial Ni-based catalyst. A mathematical model based on key chemical reactions and solved with experimentally obtained kinetic parameters is developed for better understanding and optimization of the catalytic upgrading process.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Energy & Fuels
John Eleeza, Philip Boahene, Sundaramurthy Vedachalam, Ajay K. Dalai, John Adjaye
Summary: The acidity of the catalyst significantly affects fines deposition during the hydrotreating process of heavy gas oil, with higher acidity leading to lower fines deposition. Thicker asphaltene coatings result in higher fines deposition. After hydrotreating, there is a decrease in the weak acidic sites on the spent catalyst.
Article
Engineering, Chemical
Karolina Dlaskova Jaklova, Lucie Sindelarova, Jan Kohout, Ivana Hradecka, Nikita Sharkov, Ales Vrablik
Summary: This study examined the impact of two types of catalyst deactivation on product quality and catalyst activity, finding that both types had similar effects on the quality of products and catalyst, with the main difference being the duration of catalyst recovery after deactivation.
Article
Chemistry, Physical
William J. Movick, Gwang-Nam Yun, Vibin Vargheese, Kyoko K. Bando, Ryuji Kikuchi, S. Ted Oyama
Summary: Bimetallic CoPdP phosphides supported on KUSY zeolites showed high catalytic activity and selectivity, with Pd aiding the reduction of Co to form CoPdP alloys, and synergistic effects observed between Co and Pd.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
S. Ted Oyama, Gwang-Nam Yun, So-Jin Ahn, Kyoko K. Bando, Atsushi Takagaki, Ryuji Kikuchi
Summary: This study presents a general method for analyzing whether an adsorbed species is a reactive intermediate in hydrogenation or oxidation reactions, providing order-of magnitude estimates of the rate of reaction. The example of hydrodeoxygenation of gamma-valerolactone using a Ni2P/MCM-41 catalyst demonstrates the application of in situ infrared and X-ray absorption spectroscopy to characterize reaction intermediates.
JOURNAL OF CATALYSIS
(2021)
Editorial Material
Chemistry, Physical
Yong-Kul Lee
Article
Chemistry, Physical
William J. Movick, Gwang-Nam Yun, I. Tyrone Ghampson, S. Ted Oyama
Summary: This study evaluated the applicability of the Delplot method in catalytic reactions, considering both simple and detailed reaction networks with adsorbed intermediates. Comparison using F-statistics showed that the detailed network provided a better fit to experimental data, indicating the limitations of the Delplot method in determining reaction sequences involving adsorbed species with large equilibrium constants.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Marcel Jonathan Hidajat, Gwang-Nam Yun, Dong-Won Hwang
Summary: The study demonstrates the potential of RuSn/ZnO catalyst for the valorization of medium-chain fatty acids into value-added chemicals, achieving highly efficient and selective hydrogenation of octanoic acid by optimizing specific reaction conditions.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Gwang-Nam Yun, Ki-Duk Kim, Yong-Kul Lee
Summary: A highly dispersed nickel phosphide catalyst supported on SBA-15 was prepared and tested for the hydrotreating of tire pyrolysis oil. The catalyst showed high HDS and HDN conversion rates, comparable to a commercial NiMoS catalyst under the same conditions, indicating its potential for use in industrial applications.
Article
Chemistry, Physical
Kyung-Ryul Oh, Gwang-Nam Yun, Ki-Duk Kim, Yeon-Joo Cheong, Changho Yoo, Fajar Prihatno, Hye-Young Jang, Anil H. Valekar, Ga-Young Cha, Mijung Lee, Jaehoon Jung, Young-Uk Kwon, Young Kyu Hwang
Summary: In this study, efficient methods for preparing SACs were demonstrated by incorporating an Ir complex into a ZIF support. The results showed that the prepared catalysts had different immobilization efficiencies, particle shapes, and catalytic activities. The proposed local structures of the catalysts were confirmed by density functional theory modeling and X-ray absorption spectroscopy results. The catalysts exhibited unprecedented catalytic performance in glycerol dehydrogenation and CO2 hydrogenation, and showed heterogeneity and stability under harsh reaction conditions.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
I. Tyrone Ghampson, Gwang-Nam Yun, Arisa Kaneko, Vibin Vargheese, Kyoko K. Bando, Tetsuya Shishido, S. Ted Oyama
Summary: The catalytic partial oxidation of methane to dimethyl ether (DME) was studied using different catalysts and reactant conditions. The choice of catalyst support and oxidants had a significant impact on the selectivity and catalytic activity of the reaction.
Article
Chemistry, Physical
Jihyun Kim, Yong-Kul Lee
Summary: NiMoS and CoMoS catalysts were synthesized and applied to the hydrotreating (HDT) of FCC light cycle oils (FCC-LCO) at 613 K and 8.6 MPa H-2. The individual and competitive reactivities of sulfur (S) and nitrogen (N) compounds in the HDS and HDN reactions were investigated using S and N model compounds. The NiMoS catalyst showed better activity in the HDN of LCO and HDS of LCO compared to the CoMoS catalyst.
Article
Nanoscience & Nanotechnology
Kyung-Ryul Oh, Hyunjoon Lee, Gwang-Nam Yun, Changho Yoo, Ji Woong Yoon, Ali Awad, Hyun-Wook Jeong, Young Kyu Hwang
Summary: This study presents a facile one-pot synthesis method for PdCo-ZIFs with various Pd/Co ratios, where Pd(II) ions are successfully incorporated into the Co node sites of the ZIF structure. The bimetallic ZIFs exhibit different coordination geometries of Co (tetrahedral) and Pd (square planar) ions connected by the benzimidazolate ligand. The PdCo-ZIFs show significantly higher catalytic activity in the cycloaddition of CO2 to epoxides, indicating that the undercoordinated Co sites with distorted structure are the active sites rather than the incorporated Pd ions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Marcel Jonathan Hidajat, I. Tyrone Ghampson, Gwang-Nam Yun, Dong Won Hwang
Summary: This study focuses on the hydro-deoxygenation (HDO) process using RuSn supported on SiO2-doped Al2O3 (SiAl) for upgrading biofuels. The presence of SiO2 on Al2O3 is crucial for the formation of the Ru3Sn7 alloy phase, which enhances hydrogenation activity and reduces carbon loss. The addition of SiO2 also improves acidity and increases dehydration activity, leading to high and selective conversion of fatty acids to hydrocarbons.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Hyung-Ki Min, Sohun Oh, Young Woo Kim, Eun-Jeong Kim, Sungjoon Kweon, Siyeon Lee, Kwangho Park, Kwang-Deog Jung, Seung Hyeok Cha, Gwang-Nam Yun, Min Bum Park, Chae-Ho Shin
Summary: PtZn bimetallic nanoclusters on 2D molecular sieves show excellent catalytic activity and stability for propane dehydrogenation by promoting molecular diffusion, resisting coke deposition deactivation, and reducing the Lewis acidity of the support. The progressive formation of highly active PtZn bimetallic nanoclusters on a Pt-modified zincosilicate with 2D delaminated MWW layers during PDH leads to a high propane conversion (40.3%) comparable to thermodynamic equilibrium and extraordinary stability with a low deactivation rate (kd < 0.002 h-1) for up to 13.6 days.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Pandian Manjunathan, Bolla Srinivasa Rao, Maeum Lee, Marcel Jonathan Hidajat, Gwang-Nam Yun, Dong Won Hwang
Summary: This study reports an integrated approach to produce 2,5-furandicarboxylic acid (FDCA) using fructose as a feedstock in a base-free environment. The approach involves dehydration of fructose to produce 5-hydroxymethylfurfural (HMF) and subsequent oxidation of HMF to produce FDCA using a Ru/MnO2 catalyst. The Ru/MnO2 catalyst outperforms conventional catalysts under identical reaction conditions.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Multidisciplinary
Ajaysing S. Nimbalkar, Kyung-Ryul Oh, Seung Ju Han, Gwang-Nam Yun, Seung Hyeok Cha, Pravin P. Upare, Ali Awad, Dong Won Hwang, Young Kyu Hwang
Summary: The successful synthesis of finely tuned Ni1.5Sn nanoalloy phases from a mixed-metal zeolitic imidazolate framework (MM-ZIF) and its catalytic performance in the production of 1,2-propanediol (1,2-PDO) were investigated. The results demonstrated that the synergy between Ni-Sn alloy, finely dispersed Ni metallic sites, and the Lewis acidity of SnOx species-loaded ZnO played a pivotal role in the high activity and selectivity of the catalyst.
Article
Chemistry, Multidisciplinary
Marcel Jonathan Hidajat, Oseok Kwon, Hoyoung Park, Jeehoon Han, Gwang-Nam Yun, Dong Won Hwang
Summary: This study reports a new technology for direct production of 1-octene from biomass-derived octanoic acid using a dual-bed catalyst system. By optimizing the catalyst system, high yields and purity of 1-octene were achieved, and simulation models were developed to analyze mass flow and energy efficiency.
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)