Article
Chemistry, Physical
Jian Yang, Lei Yang, Ming Fang, Lei Li, Fan Fu, Hao Xu, Minggao Li, Ximei Fan
Summary: Constructing Z-scheme heterojunction photocatalysts is a promising strategy for decomposing VOCs, and in this study, a compact and homogenous BiOCl/Bi2WO6 heterojunction photocatalyst was successfully synthesized via a one-pot hydrothermal method. The integrated structure facilitated efficient separation of photogenerated carriers and the generation of active species for VOC degradation. The optimized BiOCl/Bi2WO6 photocatalyst exhibited almost 100% toluene degradation and excellent durability. The photocatalytic mechanism and intermediate products were also investigated, providing insights for efficient VOC degradation under sunlight.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Lijun Yan, Qing Wang, Wenqiang Qu, Tingting Yan, Hongrui Li, Penglu Wang, Dengsong Zhang
Summary: This study successfully regulated the structure of Pt/TiO2 catalyst through reduction-oxidation treatment, forming Pt/TiO2-C catalyst with a special interface, which can efficiently photocatalytically degrade toluene and exhibit stronger oxidation capacity and mineralization rate.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Organic
Takeshi Nanjo, Tatsuki Matsugasako, Yuri Maruo, Yoshiji Takemoto
Summary: The photocatalyzed deoxygenative C-C coupling reaction using xanthate salts as reagents is a promising method for generating alkyl radicals through homolytic cleavage of C-O bonds. The success of this strategy is attributed to the low oxidation potential of xanthate salts and the use of suitable phosphine to accelerate the release of carbonyl sulfide.
Article
Chemistry, Physical
Lingru Kong, Xiaoxue Li, Peng Song, Fengcai Ma
Summary: In this study, porous g-C3N4 nanosheets with enhanced photocatalytic performance were easily obtained by treating melamine with organic acids and aldehydes. The improved photocatalytic activity was attributed to increased adsorption of formaldehyde around holes, reducing carrier diffusion distance and increasing reaction probability. This provided numerous reactive sites for formaldehyde.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Peng Li, Jie Qu, Jing Wu, Jie Zhang, Guoli Zhou, Ying Zhang, Yijun Cao, Daoguang Teng
Summary: In this study, a Bi2O3/BiOCl heterojunction with high photocatalytic activity was constructed. However, the photocatalytic performance decreased after repeated testing. The adsorption of RhB molecules on the active sites of BBOC was identified as the cause of the decline. The spent BBOC can be reactivated through calcination, leading to the recovery of its high photocatalytic activity.
Article
Chemistry, Multidisciplinary
Pattamaphon Chanklom, Torpong Kreetachat, Rotruedee Chotigawin, Kowit Suwannahong
Summary: This study focused on incorporating TiO2-anatase into polylactic acid (PLA) using the blown film method for the mitigation of indoor air pollution. The homogeneity of TiO2 distribution in the PLA matrix was demonstrated, and the relationship between TiO2 dosage and photocatalytic oxidation rate was determined. The use of environmentally friendly biodegradable polymers, such as PLA, provides an alternative way to address environmental concerns associated with non-decomposable plastics.
Article
Engineering, Chemical
Linhui Fu, Chen Hou
Summary: In this study, a smart gas sensing and eliminating hybrid aerogel (PZMCA) with high porosity was developed by self-assembling polydiacetylene (PDA) on a chemically cross-linked cellulose aerogel, combined with 2D ZnO/MoS2 heterojunction derived from ZIF-8/MoS2. The PZMCA showed a sensitive and fast color response to gaseous toluene and exhibited enhanced photocatalytic degradation efficiency for toluene under solar light irradiation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Aadil Bathla, Kumar Vikrant, Deepak Kukkar, Ki-Hyun Kim
Summary: This article describes the application of metal oxide composites as photocatalysts in the treatment of hazardous volatile organic pollutants in air. The article focuses on the mechanism and performance evaluation of titanium dioxide-based photocatalysts for the oxidation of benzene, and compares the efficiency of different material composites.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Review
Chemistry, Physical
Yangyang Xie, Sining Lyu, Yue Zhang, Changhong Cai
Summary: This review discusses the research progress of metal-organic framework (MOF) materials in adsorption and removal of volatile organic compounds (VOCs), exploring methods to optimize adsorption and degradation performance.
Article
Environmental Sciences
Xinni Wu, Zongyi Tan, Ruijuan Liu, Zhianqi Liao, Huase Ou
Summary: This study compared the generation of volatile organic compounds (VOCs) from polyethylene (PE) and polyethylene terephthalate (PET) under UV-A (365 nm) and UV-C (254 nm) irradiation in water. Over 50 different VOCs were identified, and the potential risks of these VOCs to humans and the environment may be unknown.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Environmental Sciences
A. K. Priya, R. Suresh, P. Senthil Kumar, Saravanan Rajendran, Dai-Viet N. Vo, Matias Soto-Moscoso
Summary: This review discusses the use of photocatalysis in treating air pollutants, focusing on gaseous inorganic contaminants and organic pollutants. Various photocatalysts and their removal efficiency are explained, along with strategies for improving photocatalyst activities. The analysis of existing photocatalytic immobilization approaches and factors affecting effective photocatalysis are also presented. Overall, photocatalytic abatement is a promising technique for eliminating different air contaminants, while existing drawbacks and future challenges are also discussed.
Article
Engineering, Environmental
Yanzhi Li, Shi Liu, Kehan Yin, Dongyan Jia, Yundong Sun, Xueying Zhang, Jingchun Yan, Li Yang
Summary: The ABO(3)-type perovskite oxides have the advantages of being able to tailor the redox capability of transition metal elements in their lattice structure through a simple doping strategy, making them an ideal platform for catalytic combustion of VOCs. This study synthesized and analyzed a series of La1-xSrxCo1-yFeyO3 perovskites for toluene combustion. Among the catalysts, La0.5Sr0.5Co0.8Fe0.2O3-delta (LSCF) showed remarkable activity for toluene oxidation and exhibited superior stability. The outstanding catalytic activity of LSCF perovskite is attributed to the enhancement of redox ability, generation of oxygen vacancies, and activation of lattice oxygen species.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Yaoming Hu, Lingyu Xiao, Liwang Wang, Bowen Feng, Wan Meng, Chuanbao Ding, Jiaxin Jing, Liang Ma
Summary: Volatile organic compounds (VOCs) emitted by chemical laboratories are the primary pollutants that cause damage to the environment and pose a serious threat to human health. A photocatalytic device has been constructed and shown effective in removing VOCs, providing a foundation for further development. This device has great industrial application prospects.
CHEMICAL ENGINEERING & TECHNOLOGY
(2023)
Review
Chemistry, Physical
Jianyong Zhao, Jianpeng Sun, Xiangchao Meng, Zizhen Li
Summary: Vehicle exhaust is a significant factor affecting human health, and the research on its treatment has received increasing attention. Photocatalytic technology using semiconductor catalysts has been considered a practical approach for eliminating vehicle emissions. This review highlights the crucial role of photocatalytic technology and discusses the recent advances in various photocatalytic materials and their applications for the elimination of vehicle exhaust.
Article
Chemistry, Multidisciplinary
Peter J. H. Williams, Graham A. Boustead, Dwayne E. Heard, Paul W. Seakins, Andrew R. Rickard, Victor Chechik
Summary: The new method for trapping short-lived radicals utilizes a homolytic substitution reaction S(H)2', resulting in high sensitivity, detailed structural information, and general applicability. By using radical traps in the form of terminal alkenes with a nitroxide leaving group, stable products are generated for subsequent analysis, offering new mechanistic insights into a range of model radical reactions. Gas-phase radicals can also be detected at concentrations relevant to atmospheric chemistry.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Applied
Luxin Ren, Wangchen Huo, Guiying Li, Wonyong Choi, Taicheng An
Summary: This study investigated the photocatalytic transformation pathways of 5-fluorouracil (5-FU) and the inhibition mechanisms of its degradation efficiency reduction using TiO2 supported on nickel foam (TiO2/NF) as the photo-catalyst and pharmaceutical micropollutant. The produced intermediates during the photocatalytic degradation of 5-FU were identified as mono/polyhydroxylated compounds, short-chain oxides, and carboxylation ones. The inhibition of 5-FU degradation was found to be attributed to the competition for hydroxyl radical (center dot OH) and the preferential consumption of center dot OH in the TiO2 diffusion layer by the intermediates.
Article
Environmental Sciences
Jiaxin Wang, Xiaohui Ma, Yuemeng Ji, Yongpeng Ji, Yanpeng Gao, Yuqi Xiao, Guiying Li, Taicheng An
Summary: This study systematically investigated the mechanisms and kinetics of the aqueous-phase reactions of 1-butanol/1-decanol and their roles in the formation of organosulfate (OSA) nanoparticles. It was found that the reactions start from protonation of hydroxyl groups followed by esterification or oligomerization reactions, leading to the formation of OSA nanoparticles. Short-chain alcohols contribute more to the formation of OSA nanoparticles compared to long-chain alcohols. Additionally, long-chain alcohols participate in nanoparticle growth through esterification.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Environmental Sciences
Zhishu Liang, Yun Yu, Xiaolong Wang, Wen Liao, Guiying Li, Taicheng An
Summary: This study assessed the characteristics and exposure risks of airborne microorganisms in different sectors of a typical landfill. The results showed that active areas during waste disposal processes and the surrounding areas had higher levels of pathogenic microorganisms and allergenic fungi. Additionally, the surrounding areas had higher levels of antibiotic resistance genes. These findings provide guidance for reducing and preventing respiratory allergy or infection risks in occupational environments related to waste management.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Environmental Sciences
Qianyong Shen, Ranran Liu, Jingyi Chen, Guiying Li, Shengtao Ma, Yingxin Yu, Taicheng An
Summary: Occupational workers and residents near petrochemical industry facilities are exposed to multiple contaminants on a daily basis. However, little is known about the co-exposure effects of different pollutants based on biotransformation. This study investigated the changes in toxicity and co-exposure mechanism associated with different monoaromatic hydrocarbons (MAHs) when co-exposed with benzene, toluene, chlorobenzene, or nitrobenzene. The results showed that co-exposure to MAHs negatively affected the detoxification process of benzo[a]pyrene (BaP) and disturbed its metabolic pathways.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Jian Tang, Shengtao Ma, Xin Hu, Meiqing Lin, Guiying Li, Yingxin Yu, Taicheng An
Summary: This study evaluated the association between organophosphorus flame retardants (OPFRs) in handwipes and internal body burden on workers and residents in an e-waste dismantling area. The findings suggest that handwipes can serve as non-invasive exposure indicators to assess body burden and health effects of dermal exposure to OPFRs on thyroid hormones (THs).
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Meiqing Lin, Shengtao Ma, Jian Tang, Yingxin Yu, Guiying Li, Ruifang Fan, Guoxia Zhang, Bixian Mai, Taicheng An
Summary: Polybrominated diphenyl ethers (PBDEs) are important pollutants during e-waste dismantling activities in China. Bromophenols (BPs), which are flame retardants and metabolites of PBDEs, are often overlooked in assessing human exposure to e-waste. Analysis of serum, hair, and urine samples showed higher frequencies of PBDE and BP detection in hair. Although levels of EPBDEs and EBPs were significantly higher in the hair of occupational populations, no significant difference was found in serum and urine levels between occupational and non-occupational populations. The study suggests that hair analysis can better differentiate the exposure intensities of PBDEs and BPs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Na Luo, Yanpeng Gao, Mei Wang, Xiaolin Niu, Guiying Li, Taicheng An
Summary: The study investigates the transformation mechanism and pathway of tonalide, a representative synthetic musk, under ultraviolet (UV) irradiation in water. It is found that tonalide undergoes rapid photochemical degradation through a new pivotal bi-radical acting as the initial active species. The main degradation by-product, photoenol, with higher bioconcentration than tonalide, is formed through the photoenolization of the bi-radicals.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Mengdie Qi, Yingjun Wu, Shu Zhang, Guiying Li, Taicheng An
Summary: This study analyzed surface soils from a non-ferrous metal smelting area to assess heavy metal pollution and its health risks. The results showed that human activities were responsible for the pollution levels of Cu, Cd, As, Zn, and Pb in the vicinity of the smelting plant. Heavy metal pollution within the plant was severe. The primary sources of Cd, As, Pb, and Zn in the surrounding areas were found to be related to smelting and transportation activities. The study also highlighted the significant health risks associated with As, Pb, and Cd, emphasizing the need for a heavy metal pollution management system in the industry.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2023)
Article
Environmental Sciences
Jun Xiang, Rongfa Xu, Dongwei Du, Bin Tang, Miao Yi, Fengshan Cai, Xiao Yan, Jing Zheng, Guiying Li, Taicheng An
Summary: SVOCs are widely present in the air and their fates and sources in ambient areas around petrochemical and other industries were not well understood. This study investigated the levels of different SVOCs in the atmosphere of residential areas near a petrochemical industry plant in a developing metropolis. The highest levels were found for PAEs, followed by APs, PAHs, OPFRs, and PBDEs. Seasonal variation was observed, with higher concentrations of certain SVOCs in summer and others in winter.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Environmental Sciences
Chao Wang, Wanjun Wang, Weiqiang Deng, Shu Zhang, Shaobin Shao, Meicheng Wen, Guiying Li, Taicheng An
Summary: The occurrence and adverse effects of volatile organic compounds (VOCs) from coking wastewater treatment processes were investigated. Benzene and naphthalene were found to be the major VOCs in the air phase, while benzene, naphthalene, and toluene contributed most to total VOCs in the water phase. The regulating tank was identified as the major source of VOCs, with an emission rate of 2711.03 g/d. The environmental and health risks associated with VOCs were assessed, with carcinogenic and non-carcinogenic risks exceeding the risk thresholds in the regulating tank.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Linghui Peng, Haiyu Wang, Guiying Li, Zhishu Liang, Weiping Zhang, Weina Zhao, Taicheng An
Summary: Bioaerosol can lead to disease transmission, but current filtration systems are often ineffective. This study presents a bioinspired photocatalyst that can efficiently capture and inactivate airborne bacteria. The artificial spider silk (ASS) photocatalyst exhibits high capture capacity and photocatalytic inactivation efficiency. This research provides a promising strategy for developing materials for bioaerosol purification.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Xiaolin Niu, Guanhui Chen, Yi Chen, Na Luo, Mei Wang, Xinyi Hu, Yanpeng Gao, Yuemeng Ji, Taicheng An
Summary: This study investigated the environmental transformation and health effects of endocrine disruptors (EDCs), and discovered an important transformation product (dimer) with estrogenic activity. Environmental factors were found to play a significant role in its formation. Quantum chemical and toxicological calculations revealed the estrogenic effect mechanism of the dimer and its higher health risk compared to the parent compound.
Article
Engineering, Environmental
Hailing Li, Chunyang Yao, Chang He, Hang Yu, Congcong Yue, Shu Zhang, Guiying Li, Shengtao Ma, Xin Zhang, Zhiguo Cao, Taicheng An
Summary: Coking contamination in China poses potential health risks to humans. A study found that urine samples of coking plant workers had significantly higher concentrations of aromatic compounds compared to other groups. Different sources of contamination were found in workers with direct and indirect exposure. The study also revealed that coking contamination increased the carcinogenic risk for exposed workers by 5-fold.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Environmental Sciences
Xinlin Shen, Jiangyao Chen, Guiying Li, Taicheng An
Summary: This review summarizes the new advances in the sources and pollution preferences of amines in the past decade, and discusses their impacts on atmospheric particulate matter formation and climate evolution. The pollution profiles and source identification of amines have been updated with newfound sources. The atmospheric oxidation reaction mechanisms of amines with various active radicals are also discussed. Combined data from field monitoring, laboratory experiments, and theoretical calculations confirm the significant contribution of amines to aerosol particles and their effects on climate.
ENVIRONMENTAL SCIENCE-ATMOSPHERES
(2023)
Article
Ecology
Taicheng An, Yiwei Cai, Guiying Li, Shaoting Li, Po Keung Wong, Jianhua Guo, Huijun Zhao
Summary: Due to the widespread use of antibiotics, aquaculture farms have become a significant source of antibiotic resistance genes. This study investigated the prevalence and transmission risk of colistin and multidrug resistance in aquaculture water samples from southern China. The results showed that colistin resistance genes and antibiotic resistance genes were present in all samples, and most types of antibiotic resistance were transmissible between bacterial communities. The study also identified diverse multidrug-resistant bacteria, including a strain with high-level colistin resistance.
ISME COMMUNICATIONS
(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)