Article
Chemistry, Multidisciplinary
Xiaolu Liu, Yinghui Xie, Mengjie Hao, Zhongshan Chen, Hui Yang, Geoffrey I. N. Waterhouse, Shengqian Ma, Xiangke Wang
Summary: Seawater contains uranium at a concentration of approximately 3.3 ppb, making it a valuable and sustainable nuclear fuel source. This study developed an adsorption-electrocatalytic platform for extracting uranium from seawater using atomically dispersed indium anchored on hollow nitrogen-doped carbon capsules functionalized with flexible amidoxime moieties. The platform showed excellent uranyl capture properties and high selectivity for uranium extraction over vanadium in seawater. X-ray absorption spectroscopy and in situ Raman results provided detailed insights into the molecular mechanism of uranium extraction. This work contributes to the growing suite of technologies for harvesting valuable metals from the earth's oceans.
Article
Engineering, Environmental
Man Wang, Lijuan Feng, Guangsheng Luo, Tiantian Feng, Shilei Zhao, Hui Wang, Se Shi, Tao Liu, Qiongyao Fu, Jingquan Li, Ning Wang, Yihui Yuan
Summary: The utilization of marine bacteria and CdS nanoparticles to create a photosensitized biohybrid system enables efficient extraction of uranium from seawater, satisfying the demands for nuclear fuel and providing a promising direction for the design of uranium adsorbents.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Shuang Liu, Xuedong Li, Liqin Huang, Qi Qing, Daniel-James Maguire, Nakkyu Chae, Zhe Wang, Jing Chen, Yuexiang Lu
Summary: A tunable carbon nitride nanostructure synthesized using molten salt is reported, with its adsorption capacity and photocatalytic activity adjustable with the synthesis temperature. The carbon nitride nanostructure obtained at 550 degrees C showed the highest photo-catalysis-assisted extraction ability (9.4 times higher than that of g-C3N4), while that obtained at 600 degrees C demonstrated the highest adsorption capacity (51 times higher than that of g-C3N4).
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shi-Tian Xiao, Rui Yin, Lu Wu, Si-Ming Wu, Ge Tian, Menny Shalom, Li-Ying Wang, Yi-Tian Wang, Fu-Fei Pu, Hannah-Noa Barad, Fazhou Wang, Xiao-Yu Yang
Summary: In order to address the corrosion and deactivation caused by multiple types of ions in seawater, a facile calcination method was used to fabricate a macro-mesoporous C3N4 derivative, VN-HCN, which contains multiple nitrogen vacancies. Experimental results and theoretical calculations showed that VN-HCN has enhanced corrosion resistance and elevated photocatalytic H2 production performance in seawater, which is attributed to enhanced mass and carrier transfer and selective adsorption of hydrogen ions.
Review
Chemistry, Physical
Peng Liu, Minyan An, Teng He, Ping Li, Fuqiu Ma
Summary: The rapid development of nuclear power as a green energy source has led to increased global demand. However, seawater uranium extraction faces challenges in terms of contamination by microorganisms, which can negatively impact the adsorption performance of uranium adsorption materials. To mitigate this issue, the development of new antibacterial and antiadhesion materials is crucial.
Article
Nanoscience & Nanotechnology
Rohit Mann, Deepa Khushalani
Summary: Photocatalytic hydrogen production from water splitting is a promising and sustainable method to fulfill current energy demand. The use of seawater as a solvent is necessary for industrial applications. However, the effect of seawater ions on water splitting is not well-known and a well-established catalytic system for seawater splitting is lacking. Recent research has shown that ionized carbon nitride photocatalyst can enhance water splitting in the presence of ions, but the underlying mechanism is not fully understood.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Environmental Sciences
Bilal Ahmed, Zia Ahmad, Amina Khatoon, Iqra Khan, Nusrat Shaheen, Attiya Abdul Malik, Zahid Hussain, Muhammad Ali Khan
Summary: Extracting uranium from seawater faces challenges such as low concentration, adsorbent fouling, and oceanic temperature. Amidoxime-based polymeric adsorbents, with their high affinity and wide applicability, have shown significant advantages in uranium extraction from seawater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Zhong Zhou, Qi Liu, Jiahui Zhu, Jingyuan Liu, Hongsen Zhang, Jing Yu, Rongrong Chen, Ying Li, Jun Wang
Summary: Amidoxime-group carbon nitride (NCN-AO) has better selectivity and uranium reduction ability, allowing for efficient extraction of uranium. NCN-AO can remove uranium with a removal rate of 99% in uranium solution, and it exhibits specific and selective adsorption of uranium.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Environmental
Shi-Cheng Liu, Ming-Bang Wu, Hao Ye, Lin Liu, Lu-Lin Ma, Juming Yao
Summary: The study introduces a method for uranium recovery from seawater using amidoximated cellulose as adsorbents, fabricated through two steps of homogeneous reactions. These adsorbents exhibit excellent properties in resisting marine pollutants and enhancing mass transfer performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Hao Ye, Tian-Hao Li, Yu-Qi Huang, Jia-Min Jin, Jin-Yan Fei, Ming-Bang Wu, Juming Yao
Summary: This study investigates the modification of electrodes to improve uranium extraction from seawater and mitigate the effects of marine microorganisms and pollutants. The findings provide guidance for the practical application of electro-adsorption and design strategies for uranium extraction adsorbents.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Tianhang Shan, Xin Ma, Hui Li, Chuntai Liu, Changyu Shen, Peipei Yang, Songwei Li, Zhenxing Wang, Zhong Liu, Hongguang Sun
Summary: It is crucial to develop a reliable and simple technology for seawater uranium extraction in order to ensure resource sustainability and environmental security. Membrane materials, with their pore structure and recyclability, have demonstrated excellent performance in adsorption. This study successfully decorated polyvinylidene fluoride (PVDF) microporous membranes with a functional coating primarily composed of plant-derived tannic acid (TA) and polyethyleneimine (PEI), and achieved highly efficient uranium extraction through filtration. The synergistic effect of the amino group from PEI and the polyphenol structure played a crucial role in achieving high adsorption capacity and rapid adsorption kinetics for U(VI). Furthermore, the molecular weight of PEI influenced the modified membrane's adsorption capacity to U(VI), with higher molecular weight leading to greater adsorption capacity.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Jinming Xue, Zongbo Xie, Bo Wang, Ye'an Zhu, Zhiwen Wu, Yidan Nie, Zhanggao Le
Summary: A simple wet-chemical method was used to prepare polypyrrole modified carbon nitride for efficient elimination and recovery of uranium from wastewater. The modified composite exhibited a stronger interaction, enhanced separation and transport of photogenerated carriers, and decreased band gap for improved visible-light absorption. The composite demonstrated excellent visible-light-driven photocatalytic performance and stability.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Yadong Pu, Taotao Qiang, Longfang Ren
Summary: In this study, a phosphonate-functionalized feather fiber (FF-PT) was developed using waste feather fibers as raw materials. The adsorption experiments showed that FF-PT has good adsorption and recycling performance for uranium. Furthermore, FF-PT also exhibited excellent selectivity in high salinity environments with the coexistence of metal competitive ions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Multidisciplinary
Zeru Wang, Wenhao Li, Linzhen Wu, Zhuang Wang, Yalan Cao, Jingkai Cheng, Guangyuan Chen, Qian Zhao, Mei Jiang, Zhengguo Chen, Lin Zhu, Tao Duan
Summary: This study investigates the adsorption of uranium by carbon nitride polymers and demonstrates that nitrogen-rich carbon nitride polymer C3N5 exhibits significantly higher adsorption performance and selectivity compared to g-C3N4. The adsorption process is a combination of physical and chemical adsorption, and C3N5 shows high kinetics and a theoretical maximum adsorption capacity of 207 mg/g for U(VI) ions.
CHINESE CHEMICAL LETTERS
(2022)
Article
Engineering, Chemical
Haiyan Luo, Haoyu Yao, Min Li, Fanfang Meng, Hui Zhao, Changjiang Yu, Xiangfeng Liang, Huizhou Liu
Summary: Efficient extraction of uranium from seawater was achieved through the graft modification of pectin, which utilized the dual action of aminoxime and carboxyl groups. Novel biomimetic pectin adsorbents with improved adsorption selectivity were developed and their performance in adsorbing uranium from seawater was investigated. The modified apple pectin (MPA) adsorbents exhibited the highest adsorption capacity of 212.27 mg/g at optimal conditions, and the thermodynamic results showed that the adsorption process followed the Langmuir single-layer model.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Applied
Peng Shi, Ze-Yu Liu, Xue-Qiang Zhang, Xiang Chen, Nan Yao, Jin Xie, Cheng-Bin Jin, Ying-Xin Zhan, Gang Ye, Jia-Qi Huang, Stephens E. Ifan, Titirici Maria-Magdalena, Qiang Zhang
Summary: The study proposes a strategy of utilizing the interaction between a polar polymer host and solvent molecules to achieve a stable SEI and uniform Li deposition in a working battery. The composite Li anode with a PAN host demonstrates improved cycling performance and provides new guidance for designing practical composite Li anodes.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Hongpeng Li, Qi Qing, Liyuan Zheng, Lan Xie, Zhiqiang Gan, Liqin Huang, Shuang Liu, Zhe Wang, Yuexiang Lu, Jing Chen
Summary: Photocatalytic removal of uranium is a significant research topic in nuclear wastewater treatment. In this study, carbon dots/carbon nitride (CDs/CN) composites were synthesized and SerCDs/CN with excellent removal performance was identified. The introduction of CDs led to higher photocurrent density, lower interfacial charge transfer impedance, and narrower band gap, resulting in improved removal performance. SerCDs/CN exhibited a high removal capacity of up to 1690 mg/g and the reaction could be conducted under air atmosphere, showing potential for practical application.
CHINESE CHEMICAL LETTERS
(2022)
Article
Biochemical Research Methods
Zhe Wang, Liyuan Zheng, Qi Cheng, Xuedong Li, Liqin Huang, Yuexiang Lu
Summary: Graphene oxide (GO) is a versatile optical platform for imaging and sensing, but its fluorescence is relatively weak. In this study, we observed metal-enhanced fluorescence (MEF) of GO on a silver substrate, which significantly increased the fluorescence intensity. Visual and analytical techniques were used to investigate the MEF behavior and its response to different metal ions. The direct contact between GO and the metal substrate exhibited strong MEF without quenching, allowing for three-dimensional optical imaging and sensing.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Applied
Yingying Xu, Xueyan Ding, Xianjie Chen, Zhigang Ni, Tian He, Huayu Qiu, Chang-Zhi Li, Qian Zhang
Summary: By introducing different chalcogen-heterocycle substituents, the molecular properties and photovoltaic performance of non-fused electron acceptors can be controlled. In this study, 2T2TT-F exhibited a higher power conversion efficiency when combined with a polymer donor.
Article
Chemistry, Multidisciplinary
Liping Liu, Haibing Meng, Yongqiang Chai, Xianjie Chen, Jingyi Xu, Xiaolong Liu, Weixu Liu, Dirk M. Guldi, Yongfa Zhu
Summary: In this study, a novel MOF photocatalyst is constructed by encapsulating C-60 into a nano-sized zirconium-based MOF, NU-901, resulting in a substantial electrostatic potential difference and a robust built-in electric field. The photocatalytic hydrogen evolution rate for C-60@NU-901 reaches 22.3 mmol g(-1) h(-1), which is among the highest values for MOFs. Harnessing host-guest interactions to enhance charge separation is a promising strategy for designing efficient photocatalysts for solar-to-chemical energy conversion.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Cardiac & Cardiovascular Systems
Sheng Wang, Zhaoyun Cheng, Xianjie Chen, Guoqing Lu, Xiliang Zhu, Gaojun Xu
Summary: This study reveals the protective role of SNHG4 in myocardial infarction and its mechanism through regulating the miR-148b-3p/DUSP1 pathway. This finding provides potential therapeutic targets for the treatment of myocardial infarction.
CARDIOVASCULAR THERAPEUTICS
(2022)
Article
Materials Science, Ceramics
Yang He, Xiaoyan Shu, Lingshuang Li, Mingfen Wen, Guilin Wei, Yuexiang Lu, Yi Xie, Faqin Dong, Shunzhang Chen, Kuibao Zhang, Xirui Lu
Summary: Based on the chemical composition and secondary diagenetic property, a natural aluminosilicate was proposed as an immobilization matrix for the simulated An3+ waste (Nd2O3). Sintering at 1500 degrees C for 6 h was found to be a prerequisite for the preparation of the waste form. The glass-ceramic structure-dominated waste form can achieve a loading content of 16 wt.% Nd2O3.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Multidisciplinary
Qian Chen, Yue Zhang, Enming You, Qiaorong Jiang, Xianjie Chen, Yu Wang, Zhijia Song, Kuan Chang, Zhaoxiong Xie, Qin Kuang
Summary: Accelerating the water oxidation kinetics can effectively improve the efficiency of CO2 photoreduction.
Article
Multidisciplinary Sciences
Zhipeng Wang, Liqin Huang, Xue Dong, Tong Wu, Qi Qing, Jing Chen, Yuexiang Lu, Chao Xu
Summary: An efficient separation strategy based on ion sieving in graphene oxide membrane is reported for the separation of actinides from lanthanides. This work realizes the group separation of actinides from lanthanides under highly acidic conditions by a simple ion sieving strategy and highlights the great potential of utilizing graphene oxide membrane for nuclear waste treatment.
NATURE COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Xianjie Chen, Zhenyuan Xu, Meng Lu, Wenjun Ding, Jun Zhong, Suihui Deng, Siyan Li, Jifei Miao, Xiaoyi Liu, Quan Wen, Sen Ye, Chun Li, Hui Li
Summary: In this study, it was found that paeonol can reverse thymic atrophy induced by malignant melanoma and alleviate PD1-mediated antitumor immune dysfunction by reducing miR-139-5p expression.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Guoshao Su, Xianjie Chen, Guikai Sun, Bingrui Chen, Guofu Zhao
Summary: The evolutionary characteristics of acoustic emission (AE), microseismic (MS), and sound signals produced by hard rock fracture were investigated through uniaxial compression tests on granite specimens. The characteristics of the acoustic signal index, including waveform, fractal dimension, b value, main frequency, energy proportion of signal frequency bands, and signal activeness, were analyzed. The results showed significant differences in waveform amplitude density, average decline rate of the b value, distribution of main frequency, and evolution of energy proportion of the advantage frequency band between AE, MS, and sound signals on the eve of granite failures. AE is sensitive to small-scale rock fractures, while MS and sound are sensitive to large-scale rock fractures. Additionally, a unified damage evolution equation based on acoustic signals was proposed to quantitatively describe the damage process of granite specimens during uniaxial compression tests.
INTERNATIONAL JOURNAL OF DAMAGE MECHANICS
(2023)
Article
Engineering, Environmental
Yanrong Cheng, Xiaoyan Shu, Mingfen Wen, Yuexiang Lu, Pan Tan, Xirui Lu, Lingshuang Li, Faqin Dong
Summary: The solidification of nuclear waste has significant implications for development, and scientists have fabricated a simulated nuclear waste form using the sintering process of diopside. The study found that the Fe element in diopside affects the amorphization process and mechanical properties of the waste form. A natural analog in the form of a glassy bulk was discovered, which can solidify the simulated trivalent actinide of Nd3+. The addition of Nd2O3 was found to affect the polymerization degree of glass components in the waste form. Q3 unit was identified as a key component, and the loading capacity of Nd2O3 reached 19 wt.%. The waste form has a silicate-apatite structure with even distribution, showing promising mechanical properties.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Nanoscience & Nanotechnology
Shuang Liu, Xuedong Li, Liqin Huang, Qi Qing, Daniel-James Maguire, Nakkyu Chae, Zhe Wang, Jing Chen, Yuexiang Lu
Summary: A tunable carbon nitride nanostructure synthesized using molten salt is reported, with its adsorption capacity and photocatalytic activity adjustable with the synthesis temperature. The carbon nitride nanostructure obtained at 550 degrees C showed the highest photo-catalysis-assisted extraction ability (9.4 times higher than that of g-C3N4), while that obtained at 600 degrees C demonstrated the highest adsorption capacity (51 times higher than that of g-C3N4).
ACS APPLIED NANO MATERIALS
(2023)
Meeting Abstract
Critical Care Medicine
Wai Man Wang, Xian Jie Chen, Juri Chung, Wai Kin Li, Shahidul Islam, Diana Altshuler, Peter Spiegler, Shari Brosnahan
CRITICAL CARE MEDICINE
(2023)
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)
