Article
Chemistry, Multidisciplinary
Kaiwen Ren, Shuo Liu, Zhiyu Dong, Junfeng Wang
Summary: A FeMnCe-activated semi-coke catalyst (FeMnCe/ASC) was prepared using semi-coke as the raw material. The structure and morphology of the catalyst were characterized, and its catalytic activity and stability were investigated. Under the optimal conditions, the degradation rates of ammonia nitrogen and COD reached 100%, and even after five times of recycling, the degradation rates still remained above 90%. The mechanism and pathway of piperazine degradation were also evaluated.
Article
Chemistry, Multidisciplinary
Pawan Kumar, Anuradha Vijay Jagtap, Sharad Gupta, Chathakudath P. Vinod
Summary: In this study, an efficient La2CuO4 perovskite catalyst was used for one-step oxidation of benzene to phenol under mild conditions, showing high efficiency and selectivity. The adjustment of reaction conditions was crucial for optimizing selectivity of the product.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Engineering, Environmental
Yi Yang, Minyi Liu, Xintong You, Ying Li, Haowen Lin, J. Paul Chen
Summary: Treatment of organic wastewater using catalytic wet peroxide oxidation (CWPO) is important. A new bimetallic Fe-Cu-CNT catalyst was developed and optimized for efficient treatment. The catalyst showed better performance under low pH, high MB concentration, and moderate temperature conditions. Hydroxyl radicals played a crucial role in the treatment process.
CHEMICAL ENGINEERING JOURNAL
(2024)
Review
Chemistry, Multidisciplinary
Zhaojie Jiao, Xianming Zhang, Haifeng Gong, Donglin He, Hong Yin, Yunqi Liu, Xu Gao
Summary: This study successfully treated toxic and refractory organic wastewater using CuCe oxide catalyst, demonstrating high catalytic activity, structural stability, and pH adaptability. Under optimal conditions, the removal rates of quinoline and total organic carbon were 98.1% and 86.1% respectively, revealing the CWPO process of quinoline.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Jie Zhao, Bingquan Wang, Rui Wang, Ivan V. Kozhevnikov, Korchak Vladimir
Summary: Amphiphilic hybrid catalysts were prepared by modifying [SMo12O40](2-) with tetrabutylammonium bromide (TBAB), 1-butyl-3-methylimidazole bromide (BMIMBr), and octadecyl trimethyl ammonium bromide (ODAB). The catalysts were characterized by various techniques and showed favorable activity for removing sulfur compounds at room temperature in model oil and actual diesel. Different catalysts exhibited varying levels of removal effect, with [TBA](2)SMo12O40 catalyst showing the best performance.
Article
Engineering, Environmental
Svetlana A. Yashnik, Oxana P. Taran, Tatjana A. Surovtsova, Artemiy B. Ayusheev, Valentin N. Parmon
Summary: Cu-ZSM-5 catalysts showed better decoloration efficiency compared to Fe-ZSM-5 catalysts in catalytic wet peroxide oxidation of Rhodamine 6G. The effectiveness of Cu-ZSM-5 catalysts was affected by copper loadings, Si/Al ratio, structure of copper species, and initial pH.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
Mengdi Gong, Wen-Xia Mu, Yun-Dong Cao, Yue-Wen Shao, Xun Hu, Di Yin, Hong Liu, Chun-Hui Zhang, Guang-Gang Gao
Summary: This work presents a green approach for the selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) using a giant Keplerate-type polyoxometalate. The catalyst exhibits extraordinary catalytic activity under atmospheric and anaerobic conditions, achieving high conversion and selectivity. Mechanism exploration reveals a synergistic effect between Mo6+ and Mo5+ for enhancing the efficiency of the oxidation reaction. This study expands the application of high-nuclear molybdenum clusters in catalysis.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Yanhong Chen, Shenzhen Chang, Haiyan An, Yanqin Li, Qingshan Zhu, Huiyun Luo, Yaohui Huang
Summary: In this study, two innovative polyoxometalate-based metal-organic frameworks (POMOFs) were reported as efficient catalysts for the selective oxidation of sulfides. These catalysts exhibited high catalytic activity, exceptional oxidant utilization efficiency, and remarkable structural stability, showing great potential for practical applications in oxidation reactions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Applied
J. Carbajo, A. Quintanilla, A. L. Garcia-Costa, J. Gonzalez-Julian, M. Belmonte, P. Miranzo, M. Osendi, J. A. Casas
Summary: The study showed that the formation of carbon monoxide in the Catalytic Wet Peroxide Oxidation process is significantly lower compared to the conventional Fenton process. Different solid catalysts can achieve a more gradual oxidation of phenol and aromatic intermediates, resulting in lower CO emissions.
Article
Chemistry, Physical
Yang Yang, Qianqian Wang, Xueyong Zhang, Xianhe Deng, Yina Guan, Maoquan Wu, Li Liu, Jie Wu, Tongjie Yao, Yadong Yin
Summary: This study reports the transformation of type-II Fe2O3@2H-MoS2 heterostructures into a Z-scheme Fe2O3@C@1T/2H-MoS2 catalyst capable of in situ photocatalytic generation of H2O2 as an oxidant for the subsequent Fenton reaction. The cascade process demonstrates high performance in the oxidative degradation of organics, with significant effectiveness in the degradation of tetracycline. The in situ generated H2O2 accounts for a considerable portion of the total degradation efficiency, providing an effective solution to the challenges in the traditional Fenton reaction.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Ganga Singh, Subhasis Das Adhikary, Debaprasad Mandal
Summary: The physico- and electrochemical behaviors of a series of [WZn3(H2O)(2)(ZnW9O34)(2)](12-) (Zn-WZn3) and its first-row transition-metal-substituted analogues [WZn-(TM)(2)(H2O)(2)(ZnW9O34)(2)](12-) (Zn-WZn-(TM)(2); TM = Mn-II, Co-II, Fe-III, Ni-II and Cu-II) were reported. The spectral patterns in all sandwich polyoxometalates (POMs) were similar, but the electronic properties highly depend on the transition metals at the sandwich core. The substitution of a series of first-row transition metals in Zn-based sandwich polyoxometalates resulted in the tuning of their electronic and optical properties, which correlated well with their molecular oxygen activation ability and their catalytic activity toward imine synthesis.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Wenjing Chen, Huafeng Li, Yuzhen Jin, Wenjing Lei, Qingyun Bai, Pengtao Ma, Jingping Wang, Jingyang Niu
Summary: Converting solar energy into storable hydrogen energy using green photocatalytic technology is a reliable solution for the energy crisis. Polyoxometalates, with their unique electronic and structural properties, are promising photocatalysts for hydrogen production. Introducing noble metals greatly enhances their photocatalytic efficiency.
INORGANIC CHEMISTRY
(2023)
Article
Energy & Fuels
Iva Tews, Aidan Garcia, Michael Ayiania, Sohrab Haghighi Mood, Kalidas Mainali, Jean-Sabin McEwen, Manuel Garcia-Perez
Summary: Catalytic wet oxidation is a promising technology for treating liquid wastes from biomass conversion processes, and nitrogen-doped char catalysts can lower the activation energy in the process, accelerating the oxidation of phenol.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Environmental Sciences
A. A. Hasan, M. A. Shihab, J. I. Humadi, A. M. Mohammed
Summary: This study focused on eliminating phenol from refinery wastewater using a new nano-catalyst and H2O2 as oxidant. The results showed that loading MnO2 over Fe2O3 has a positive impact on phenol removal. Increasing temperature and time enhanced phenol removal efficiency. The optimal performance was achieved at 93.94% removal under specific conditions.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Chaofei Song, Yue Lv, Xia Qin, Chengrui Guo, Jiaxin Cui, Wendkuuni Steve-Harold Kaghembega
Summary: The study found that using ZVC/CTS-ACB catalyst in CWPO process significantly increased the degradation efficiency of fulvic acid, with a TOC removal rate of 81.9% conducive to mineralization, and copper ion leaching of only 0.08 mg/l indicating high stability of the catalyst.
SCIENTIFIC REPORTS
(2021)
Article
Polymer Science
Xiaohong Wang, Jian Jian, Zhengqiu Yuan, Jianxian Zeng, Lei Zhang, Taofen Wang, Hu Zhou
EUROPEAN POLYMER JOURNAL
(2020)
Article
Chemistry, Analytical
Bawa Mbage, Yiming Li, Haipei Si, Xueyan Zhang, Yue Li, Xiaohong Wang, Abdulwahab Salah, Kaizhi Zhang
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Materials Science, Paper & Wood
Xiaohong Wang, Yuguang Sui, Jian Jian, Zhengqiu Yuan, Jianxian Zeng, Lei Zhang, Taofen Wang, Hu Zhou
Article
Environmental Sciences
Jinghui Wu, Siqi Yan, Chi Wang, Chyi-How Lay, Xiaohong Wang, Xianze Wang, Mingxin Huo
Summary: The study demonstrates that efficient conversion of 5-HMF into valuable DFF can be achieved by synthesizing HPMPoV/meso-SiO2-NH2 nanofibers. By adjusting the hydrophilicity of the nanofibers, the selectivity towards DFF can be improved, and good performance in recycling tests is observed.
Article
Nanoscience & Nanotechnology
Jinghui Wu, Hongwei Zheng, Chi Wang, Xianze Wang, Xiaohong Wang, Mingxin Huo
Summary: A peroxo polyoxometalate-based catalyst was used in the epoxidation of olefins with hydrogen peroxide, where it formed an emulsion to promote the reaction before precipitating for easy reuse.
MICRO & NANO LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Qiwen Wang, Ying Li, Hongyu Guan, Hang Yu, Xiaohong Wang
Summary: The catalyst NH4)(5)H6PV8Mo4O40 supported on hydroxyapatite showed efficient catalytic activity for the oxidative conversion of 5-hydroxymethylfurfural to 2,5-diformylfuran. It can also be reused for at least six times with high stability and duration, making it a promising catalyst for cost-saving one-step reactions.
Article
Engineering, Environmental
Yang Huo, Dan Zhang, Jinghui Wu, Xianze Wang, Xiaohong Wang, Changlu Shao, John C. Crittenden, Mingxin Huo
Summary: The study demonstrates the effective degradation of PAEs using POMs/graphene hybrids, with POM molecules embedded onto graphene to form a catalyst for high-efficiency oxidation reactions. The designed HPMoV@Surf(n)/GO(20 wt%) is found to degrade various PAEs, remove over 70% of TOC and COD, and show good removal performance in a wastewater treatment plant.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Zonghang Li, Yiming Li, Yuannan Chen, Qiwen Wang, Mehwish Jadoon, Xiaohu Yi, Xiaozheng Duan, Xiaohong Wang
Summary: Selective breakage of the beta-O-4 bond in lignin is crucial for efficient conversion of lignocellulose. In this study, a novel polyoxometalate (POM) catalyst, H6V2Mo18O62, was developed through the atom-by-atom replacement strategy, which exhibited significantly enhanced activity compared to the original H6P2Mo18O62. By using a deep eutectic solvent as a solidifying agent, BetH(5)V(2)Mo(18) was obtained, which demonstrated controlled acidic/redox ability and thermosensitive ability for mass-transferring. This trinitarian catalyst enabled the full utilization of lignocellulose via temperature-programmed treatment.
Article
Chemistry, Physical
Zonghang Li, Xiaohu Yi, Qiwen Wang, Yiming Li, Diantao Li, Regina Palkovits, Anna Katharina Beine, Chunguang Liu, Xiaohong Wang
Summary: This study achieved the direct conversion of cellulose to glycolic acid (GA) with a high yield of up to 75% using acidic/redox polyoxometalates (POMs) as catalysts in a one-pot reaction. Among the three POMs studied, H3PMo showed the most promising catalytic activity. The reaction pathway involves the activation of O2 and the crucial role of the reduced form [PMo10 VIMo2VO39]5- in GA production.
Article
Chemistry, Inorganic & Nuclear
Hang Yu, Wenwen Bu, Zijia Wang, Zhuoyue Zhao, Mehwish Jadoon, Xiaohong Wang
Summary: Polyoxometalate nanoparticles were successfully synthesized through a solid-state reaction method without the use of a surfactant, demonstrating excellent catalytic oxidative desulfurization performance for refractory sulfur compounds in diesel and gasoline. The coexistence of Ag+ and PMo4V8O4011- played a key role in the CODS process, with Ag+ acting as the electron transfer mediator and PMo4V8O4011- as the electron donor. AgPMo4V8 nanoparticles showed great potential for industrial application, producing ultra-clean oils with S content below 10 ppm under mild reaction conditions.
DALTON TRANSACTIONS
(2021)
Article
Multidisciplinary Sciences
Yue Li, Yiming Li, Xueyan Zhang, Xiaohong Wang
CHINESE SCIENCE BULLETIN-CHINESE
(2020)
Article
Chemistry, Physical
Meilin Tao, Yue Li, Yiming Li, Xueyan Zhang, Yurii V. Geletii, Xiaohong Wang, Craig L. Hill
CATALYSIS SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Physical
Yue Li, Jian Song, Mengting Jiang, Mbage Bawa, Xiaohong Wang, Yuyang Tian, Guangshan Zhu
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Chemistry, Physical
Ping Cao, Ying Li, Yiming Li, Xueyan Zhang, Xiaohong Wang, Zijiang Jiang
SUSTAINABLE ENERGY & FUELS
(2020)
Article
Chemistry, Physical
Meilin Tao, Ningyue Sun, Yiming Li, Shengtian Wang, Xiaohong Wang
CATALYSIS SCIENCE & TECHNOLOGY
(2020)