Article
Nanoscience & Nanotechnology
Mingjie Huang, Yi Han, Wei Xiang, Chen Wang, Juan Mao, Tao Zhou, Xiaohui Wu, Han-Qing Yu
Summary: This study develops an ultrafast dehalogenation system that is dominated by O2 center dot- through molecular O2 activation by oxygen vacancy-rich CuO nanoparticles. The system shows high efficiency in degrading halogenated organic compounds, and the selectivity of O2 center dot- generation is enhanced through oxygen vacancy enrichment and the presence of carbonate species. This work provides a new opportunity for selective O2 center dot- generation for dehalogenation and other environmental applications through interfacial defect engineering.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Qingdong Qin, Ting Liu, Jiaxuan Zhang, Rui Wei, Shijie You, Yan Xu
Summary: This study prepared oxygen vacancies-enriched alpha-Fe2O3 as a catalyst for PMS activation by thermally treating goethite, showing excellent catalytic activity. The concentration of oxygen vacancies was found to be positively correlated with the degradation rate of SMX, with singlet oxygen identified as the predominant reactive oxygen species. The study comprehensively investigated the factors affecting SMX degradation and proposed possible degradation pathways in the alpha-Fe2O3/PMS system.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Chemical
Xiwen Liu, Huarui Li, Shanshan Gao, Zhaoyu Bai, Jiayu Tian
Summary: This study investigates the effect of iron sulfide crystals on the activation of peroxymonosulfate (PMS) for efficient bisphenol-A (BPA) degradation. The results show that Fe3S4 exhibits higher catalytic activity compared to FeS2 and Fe7S8, and the lattice sulfur in the iron sulfide crystals possesses electron donating capacity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Shuangnian Ma, Yu Gan, Weifeng Song, Wencan Dai, Zuoyi Yang, Rengao Yang, Xiangwu Huang, Jinfu Li, Zhixin Wu, Liyao Chen
Summary: This study investigates the synthesis method of LaCoO3-delta and discovers a new material (H-Co) prepared by hydrothermal method, which shows better catalytic performance in degrading the pesticide ATZ. The H-Co/PMS system also demonstrates effective treatment of environmental pollutants and actual livestock and poultry breeding wastewater.
Article
Engineering, Environmental
Xinxin Long, Chuanping Feng, Dahu Ding, Nan Chen, Shengjiong Yang, Huanyu Chen, Xinming Wang, Rongzhi Chen
Summary: In this study, a series of MOF-derived CoFe2O4 nanomaterials with tuned oxygen vacancies were prepared for peroxymonosulfate activation. The abundant surface oxygen vacancies and functional groups on CoFe2O4 were identified as active sites to boost catalytic activity. Different annealing temperatures influenced the stability, structural, and catalytic properties of the materials.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Siyu Xu, Liangtao Wen, Chen Yu, Song Li, Jingchun Tang
Summary: In this study, a novel metallic oxide catalyst MnFe2O4@biochar composite was synthesized and used to activate peroxymonosulfate (PMS) for efficient degradation of bisphenol A. The composite showed homogeneously distributed metal oxide particles, strong magnetism, and wide adaptability, effectively removing organic pollutants.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Lan Xie, Jiajia Hao, Yinsu Wu, Shengtao Xing
Summary: This study improves the efficiency of removing refractory organic pollutants using PMS through the synthesis of amorphous MnOX. The results show that surface Mn4+ and oxygen vacancies are responsible for the generation of activated PMS and singlet oxygen (O-1(2)), respectively. The solution pH affects the degradation efficiency of MnOX-180, while the water matrix has little effect on its performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
M. Romero-Saez, R. Suresh, N. Benito, Saravanan Rajendran, F. Gracia, Carlos Navas-Cardenas, A. K. Priya, Matias Soto-Moscoso
Summary: By comparing the CO oxidation performance of mesoporous CeO2 nanoleaves with commercial CeO2 bulk powder, it was found that the synthesized nanoleaves showed superior performance, possibly due to the presence of cubic structure nanoleaves and line displacements, which favored more electron active sites.
Article
Engineering, Environmental
Yi Zhu, Dongya Li, Shiyu Zuo, Zeyu Guan, Su Ding, Dongsheng Xia, Xiaohu Li
Summary: The novel Cu2O/CuO catalyst shows excellent catalytic activity and high stability in degrading organic pollutants through free radical/non-radical pathways, with active species of free radicals and non-free radicals. The system exhibits a great potential for degrading contaminants to less toxic or harmless small molecules, as demonstrated by UPLC/MS results and toxicity assessment data.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Cui Lai, Huchuan Yan, Dongbo Wang, Shiyu Liu, Xuerong Zhou, Xiaopei Li, Mingming Zhang, Ling Li, Yukui Fu, Fuhang Xu, Xiaofeng Yang, Xiuqin Huo
Summary: A novel Mn, Ce co-modified g-C3N4 composite was synthesized for activating PMS-based advanced oxidation processes. The composite exhibited effective degradation of various pollutants and showed excellent stability and applicability.
Article
Engineering, Environmental
Qin Gao, Zhenyu Wang, Yongfang Rao, Yulei Zhao, Junji Cao, Kin-Fai Ho, Yue Zhai, Mingyu Xiong, Juntang Li, Yu Huang
Summary: Understanding the antibacterial mechanisms of nanomaterials is crucial for the development of antibacterial materials. This study successfully demonstrated the antibacterial activity of alpha-MoO3 by generating superoxide radicals and attacking bacterial membranes.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Jiaxing Lu, Zizhang Guo, Mengting Li, Peng Dai, Mingyu He, Yan Kang, Bo Sun, Jian Zhang
Summary: Manganese dioxide (MnO2) with nanoflower morphology and high concentration of oxygen vacancies showed enhanced removal performance of polycyclic aromatic hydrocarbons (PAHs) in aqueous phase. The removal mechanism involved oxidation by non-radical Mn species and superoxide radical (O-2(-center dot)), leading to the formation of degradation products. The synergistic effects of oxygen vacancy and Mn3+ promoted the efficient degradation of PAHs.
Article
Engineering, Environmental
Xinyuan Lv, Miao Yu, Yali Guo, Minghao Sui
Summary: In this study, silver-doped cobalt ferrite catalysts were synthesized and used for the activation of peroxymonosulfate in the degradation of sulfamethoxazole. The results showed that Ag-0.06-CoFe2O4 exhibited the best catalytic activity and utilization efficiency, and the silver doping led to the exposure of more active sites and an increase in the concentration of oxygen vacancies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Rui Zhou, Shuai Liu, Fangru He, Hejun Ren, Zhonghui Han
Summary: The novel APG@MnFe2O4 nanocomposite effectively degraded 2,4-DCP as a PMS activator, exhibiting a faster reaction rate, higher degradation efficiency, and superior cyclic stability.
Article
Chemistry, Physical
Sylvestre Ndayiragije, Yifan Zhang, Yuqi Zhou, Zhou Song, Nan Wang, Tetsuro Majima, Lihua Zhu
Summary: Oxygen vacancy engineering can enhance the catalytic activity of metal oxides. Using a solvent-free mechanochemical method, the VO levels on the surface of commercial MnO2 were successfully tailored, leading to improved catalytic performance. Singlet oxygen, generated from PMS and lattice oxygen of MnO2, plays a crucial role in the degradation of TBBPA. The Mn4+/Mn3+ redox couple is more important in catalytic activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Huifeng Zheng, Weiqi Wang, Yangqiao Liu, Jing Sun
JOURNAL OF POWER SOURCES
(2017)
Article
Materials Science, Coatings & Films
Songzan Jian, Zhenyi Qi, Shengrui Sun, Yi Zeng, Ziwei Liu, Yangqiao Liu, Lixin Song, Guohong Ma
SURFACE & COATINGS TECHNOLOGY
(2018)
Article
Chemistry, Multidisciplinary
Yajie Gu, Shengrui Sun, Yangqiao Liu, Manjiang Dong, Qingfeng Yang
Article
Materials Science, Multidisciplinary
Liangjing Shi, Ranran Wang, Yangqiao Liu, Jing Sun
Article
Materials Science, Multidisciplinary
Yangyang Wang, Shengrui Sun, Yangqiao Liu, Yuzhi Zhang, Jinfeng Xia, Qingfeng Yang
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Chemistry, Multidisciplinary
Shengrui Sun, Ya Tang, Jiayi Li, Jiahui Kou, Yangqiao Liu
Summary: A waste-to-resource strategy was proposed to prepare thin sheet calcium silicate hydrate material (ACSH) using solid waste fly ash as a silicon source and a small amount of Acumer2000 as a modifier. The obtained ACSH exhibited superior adsorption performance and long-term stability. This method is of great significance for waste utilization and the preparation of high quality calcium silicate hydrate materials.
Correction
Chemistry, Physical
Chen Luo, Yan Shao, Hua Yu, Hong-zhi Ma, Yu-hao Zhang, Long Gu, Bo Yin, Ming-bo Yang
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Stefano Borocci, Armando Camerlingo, Felice Grandinetti, Maria Rutigliano, Nico Sanna
Summary: The complexes of He, Ne, Ar, Kr, and Xe with B3N3H6 were investigated using MP2, CCSD(T), and SAPT ab initio methods. The complexes can be described as mono-, di-, and tri-coordinated to the N atoms, with stability following the order N-mono < N-di < N-tri. The interactions are dominated by dispersion and the binding energies are within the range of 1 or 2 kcal mol(-1). The results were compared with a recent DFT study on larger BN sheets complexes [Phys. Chem. Chem. Phys. 24 (2022) 2554-2566.].
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
V. Nagarajan, R. Bhuvaneswari, R. Chandiramouli
Summary: In this study, stable phosphoborane was used as a sensor to detect isobutane and n-propane in Liquefied Petroleum Gas (LPG). Phosphoborane demonstrated structural stability and semiconducting nature, and exhibited promising adsorption properties for the LPG molecules.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xiaoxi Xu, Zijiang Yang, Bayaer Buren, Maodu Chen
Summary: In this study, the time-dependent wave packet method was used to investigate the reaction channels and mechanisms of Ca+ + HD. The results show that the CaH+ + D reaction channel plays a primary role, which is consistent with experimental results. Complex forming and direct-abstraction reaction mechanisms exist in this reaction process.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Keshab Pandey, Hae Kyung Jeong
Summary: A free-standing silicon-carbon nanofiber composite film was synthesized and investigated for supercapacitor applications. It exhibited high specific capacitance, energy density, and power density. After 5000 cycles, the film showed excellent specific capacitance retention and Coulombic efficiency.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xinyu Zhang, Haosong Li, Xiaoyu Cao, Jing Gao, Yong Wei, Jianzhuo Zhu
Summary: The evaporation behavior of nanosized water aggregations on two-dimensional electroneutral solid surfaces with different surface polar unit densities was investigated. The results showed that the evaporation rate changes non-monotonically with the surface polar unit density, and the minimum evaporation rate is obtained when the surface has a modest surface polar unit ratio of 66.7%.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Yanyan Xu, Rui Dai, Xiaojie Wang, Zhijun Qiao, Haowei Wen, Dianbo Ruan, Yuzuo Wang
Summary: This article presents an innovative solvothermal sodium insertion method for synthesizing Triphylite-NaFePO4, which demonstrates optimal electrochemical performance in sodium-ion batteries.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Meiyi Jiang, Kun Yang, Yancheng Liu, Li Yao
Summary: The geometric structure and electronic properties of transition metal M (M = Cu, Fe, Mn)-TiO2 (101) surface adsorbed by NO2 and N2O were calculated by density functional theory (DFT) and DFT + U theory. The results showed that the adsorption of NO2 and N2O on Mn and Fe atoms is more stable, and a large number of active electrons are formed around these atoms, facilitating the catalytic reactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Sergey A. Vyrko, Yulia G. Polynskaya, Nikita A. Matsokin, Andrey M. Popov, Andrey A. Knizhnik, Nikolai A. Poklonski, Yurii E. Lozovik
Summary: In this study, carbon nanobracelets, which are cyclic molecules composed of alternating polycyclic regions and double carbon chains, were investigated using spin-polarized density functional theory. The results show that carbon nanobracelets with odd number of monomers exhibit distinct electronic energy levels, band gaps, and carbon chain deformation compared to those with even number of monomers.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Chanchan Wang, Quan Yang, Yanzhi Ding, Xiaoyong Lu, Dong Tian
Summary: It has been found that the introduction of buffer layers improves the electrical performance of solid oxide fuel cells (SSOFCs). In this study, varying ratios of Gd-doped CeO2 were used as buffer layers in YSZ-based SSOFCs. The results demonstrate that the performance of SSOFCs is enhanced when a buffer layer is added, with the highest performance achieved using Ce0.8Gd0.2O2-delta (GDC20) as the buffer layer. This suggests that the use of GDC series buffer layers is an attractive strategy to optimize performance loss due to electrolyte-electrode interactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Wang Li, Yi-Fan Zhang, Jia-Bin Huang, Chang-Yang Wang, Feng Zhang, Jiu-Zhong Yang, Long Zhao
Summary: The gas-phase reaction of propargyl with vinylacetylene was investigated using synchrotron photoionization and molecular-beam mass spectrometry methodologies. The formation mechanisms of the resulting cyclic structures were examined using quantum computations. Two previously unidentified isomers were detected and identified for the first time.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Avijit Pramanik, Sanchita Kundu, Olorunsola Praise Kolawole, Kaelin Gates, Paresh Chandra Ray
Summary: This study investigates the influence of aspect ratio and quantum confinement on the single-photon and two-photon absorption cross-section of perovskite CsPbI3 nanorods. Experimental data shows that CsPbI3 nanorods have an extremely high two-photon absorption cross-section, significantly surpassing organic chromophores and other CsPbBr3 nanocrystals. Moreover, adjusting the aspect ratio can significantly enhance the absorption ability. Additionally, the study also reveals a moderate quantum confinement effect on the single-photon and two-photon absorption cross-section of the nanorods.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Hyon-Tae Pak, Jin-A Choe, Kyong-Sik Ju, Yong -Son Rim
Summary: Drug-loaded cellulose diacetate (CDA) membranes were prepared using different compositions of mixed solvent. The microstructure and performance of the membranes were investigated, and a method to predict drug release properties was proposed. The results showed that the composition of the mixed solvent significantly affected the overall performance of CDA membranes, and the release rates of drugs were related to Δdelta and the intrinsic viscosity of CDA.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Gabriella E. Ravin, E. Curotto
Summary: We have developed a systematic approach to optimize the training set sizes for neural networks in fitting ab initio potential energy surfaces. Using this approach, we have constructed several spectroscopic quality potential energy surfaces for [Li(H2)n]+, n = 1 - 9. The ground state properties have been computed for all the systems and selected states.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Guohua Xu, Lei Xu, Feng Zhang, Chunling Yu, Yu Song
Summary: NiS1.03@Ni7S6/carbon composite was successfully prepared using corn stalk as a carbon source via a simple adsorption-sulphurization process. The composite exhibited a specific capacitance of 1554.6 F/g at 1 A/g as a supercapacitor electrode, with a capacitance retention rate of 80.4% after 5000 cycles. Furthermore, the NiS1.03@Ni7S6/carbon//AC asymmetric supercapacitor showed a high energy density of 41.2 Wh kg-1 at a power density of 750 W kg-1, and excellent cycling stability with 86.8% capacitance retention after 10,000 cycles.
CHEMICAL PHYSICS LETTERS
(2024)