Article
Chemistry, Physical
Xiaoqiang Shi, Lina Wang, Achuo Anitta Zuh, Yuefa Jia, Fei Ding, Hongfei Cheng, Qizhao Wang
Summary: The FeWO4/BiOCl composite was successfully prepared and demonstrated significantly enhanced photocatalytic performance in the photo-Fenton degradation of tetracycline hydrochloride. The optimized reaction conditions were identified, and the excellent recyclability of the composite was shown. The enhanced performance was attributed to effective charge separation and the production of more center dot OH radicals.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Luhua Shao, Zhenfei Yang, Yutang Liu, Xinnian Xia, Sijian Li, Cong Yang
Summary: The study explores a method to enhance photocatalytic activity by tuning surface structure, successfully preparing a superior active BiOCl nanosheet composite that supports rapid migration of photogenerated carriers.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Yibo Zhao, Lu Chang, Yueyang Li, Wenjing He, Keling Liu, Minjie Cui, Muhammad Usman Hameed, Jiyan Xie
Summary: Oxygen can generate reactive oxygen species in photocatalysis, promoting organic matter's mineralization. Therefore, enhanced oxygenation of the photocatalytic degradation system will help improve photocatalytic degradation efficiency. This study developed a novel high-gravity photocatalytic degradation method, which leverages the robust gas-liquid mass transfer capability of a supergravity rotating bed to realize the enhanced oxygenation of the photocatalytic degradation system. Specifically, this study used graphitic carbon nitride as the catalyst and tetracycline hydrochloride as the model pollutant. The effects of packing thickness, catalyst concentration, liquid flow rate, rotor speed, gas flow rate, and initial pH value on photocatalytic degradation performance were investigated. The results showed that the degradation rate of tetracycline hydrochloride reached 84.6 % under the optimal conditions of the rotating packed bed, which was 14.8 % higher than that of the traditional photocatalytic degradation process.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Lijun Hu, Zhichao Ding, Fei Yan, Kuan Li, Li Feng, Hongqing Wang
Summary: This study presents a simple and efficient method for producing hierarchically defective BiOCl photocatalysts. The 3D hierarchical structure of BiOCl increases its specific surface area and light harvesting capability, allowing for more efficient separation and transfer of photo-excited charges. The resulting catalyst exhibits impressive photocatalytic activity under both visible light and natural white light LED irradiation, and demonstrates excellent recycling properties.
Article
Engineering, Environmental
Yuchan Li, Bin Yu, Zhenqi Hu, Hong Wang
Summary: This study successfully synthesized a highly efficient SnS2@ZnIn2S4@kaolinite (SZK) photocatalyst, which showed significant degradation capability towards tetracycline hydrochloride (TCH). The SZK heterostructure demonstrated enhanced photocatalytic efficiency and degradation rate under visible light illumination, with O-2(-) and O-1(2) identified as the main active species. The superior performance of SZK is attributed to the synergistic effect of its components, providing new insights for visible light photocatalytic degradation of antibiotics in wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Qi Shen, Junnuan Wang, Bo Xu, Guangning Liu, Huanyu Huo, Yiqiang Sun, Bingqiang Cao, Cuncheng Li
Summary: A simple PVP-mediated pathway was developed for the synthesis of BiOCl nanoclusters at room temperature, which can convert surface hydroxyl groups into oxygen vacancies during the photoactivation process, leading to enhanced photocatalytic performance.
Article
Engineering, Environmental
Mengchi Liu, Peng Ye, Men Wang, Lele Wang, Chao Wu, Jing Xu, Yuanping Chen
Summary: Constructing S-scheme heterojunction derived from metal-organic frameworks (MOFs) with high photoredox ability and boosted charge separation efficiency is promising in photocatalytic wastewater treatment. In this study, an S-scheme heterojunction composed of MOF-BiOCl and MoS2 nanosheets was constructed, resulting in enhanced degradation efficiency of tetracycline (TC). The optimized MOF-BiOCl/MoS2-3 composite exhibited the highest TC degradation rate. This improvement is attributed to the in situ synthesis of BiOCl nanosheets from Bismuth-MOFs, which preserved the ultrahigh porosity and specific surface area of the MOFs, and the intimate interfacial contacts provided by the 2D/2D geometry.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Yali Cui, Jian Zheng, Zhijia Zhu, Chunyan Hu, Baojiang Liu
Summary: The construction of heterojunction composites using suitable semiconductor materials is effective for the removal of organic pollutants from wastewater. Bi4O7/Cu-BiOCl nanocomposites were synthesized and characterized as photocatalysts. The composites showed excellent photodegradation performance and high stability in the degradation of tetracycline under visible light irradiation. Furthermore, the possible degradation pathways were investigated, and the mechanism was studied, providing a new approach for the design of bismuth-based heterojunction photocatalysts.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Physical
Jingjing Dang, Jingru Guo, Liping Wang, Feng Guo, Weilong Shi, Yuliang Li, Weisheng Guan
Summary: The ternary Fe3O4/BiOCl/BiOI nanocomposite with a Z-scheme heterojunction structure showed significantly improved photocatalytic performance for tetracycline degradation, good stability, and reusability. Its superior photocatalytic activity was attributed to the appropriate band structure and construction of Z-scheme heterojunction, resulting in enhanced light utilization and migration rate of charge carriers, showing potential for practical applications due to its good magnetic recovery performance and minimal environmental impact.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Cixin Cheng, Qin Shi, Weiwei Zhu, Yuheng Zhang, Wanyi Su, Zizheng Lu, Jun Yan, Kao Chen, Qi Wang, Junshan Li
Summary: Compared with traditional hydrothermal synthesis, microwave-assisted synthesis offers the advantage of faster and more energy efficient synthesis. In this study, the microwave-assisted hydrothermal method was used to synthesize MoS2/BiVO4 hetero-junction photocatalyst, resulting in a spherical structure in the nanorange. The heterojunction significantly improved the photocatalytic performance, with a degradation rate of tetracycline hydrochloride (TC) of 93.7% in 90 min. The active species capture experiments indicated that ·OH, ·O-2(-) and h(+) active species played a major role in the degradation of TC. Microwave technology provides a quick and efficient method for synthesizing MoS2/BiVO4 heterojunction photocatalysts.
Article
Chemistry, Physical
Xiangwei Zou, Chunhu Li, Liang Wang, Wentai Wang, Junjie Bian, Hongcun Bai, Xiangchao Meng
Summary: The preparation of Z-scheme heterojunction photocatalysts, such as zero-dimensional/two-dimensional (0D/2D) TiO2(B)/BiOCl composites, has shown promising potential in environmental remediation. The prepared composites exhibited superior photocatalytic performance compared to pristine BiOCl and TiO2(B) due to the internal electric field at the heterogeneous interface. The optimized heterostructure also demonstrated good stability and efficacy in photodegrading tetracycline, with less toxic degradation intermediates.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Zhou Cao, Jingmai Li, Yunpu Zhao, Qiong Mei, Qizhao Wang, Hongfei Cheng
Summary: In this study, modified intercalated kaolinite was anchored on the surface of LaFe0.5Co0.5O3 microspheres, resulting in improved photocatalytic activation and TCH removal efficiency under the Vis/PS system. Co doping was found to alter the charge distribution and accelerate charge separation, while photogenerated carriers were captured by O vacancies and Co/Fe active sites. SO4 center dot- was identified as the key radical species in the Vis/PS system. Overall, this study provides insights into the mechanism of MK/LFCO-catalyzed TCH degradation and highlights the potential of kaolinite-based catalysts for wastewater treatment under Vis/PS systems.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Pandiyarajan Anand, Atul Verma, Yi-An Hong, Anren Hu, Dhayanantha Prabu Jaihindh, Ming-Show Wong, Yen-Pei Fu
Summary: In this study, deep eutectic solvents (DES) were used to assist the synthesis of BiOCl/BiVO4 heterostructured catalyst, which was applied in electrochemical uric acid (UA) sensor and tetracycline photocatalytic degradation. The chemical composition of the catalyst was analyzed by X-ray photo-electron spectroscopy (XPS). UV-vis spectroscopy revealed increased visible light absorption and narrowing band gap energy for BiOCl/BiVO4-TU. The morphology of the catalyst was analyzed using FE-SEM and TEM, and the increased lifetime of e -/h+ pair after heterostructure formation was confirmed by TRPL.
Article
Chemistry, Multidisciplinary
Jiahe Song, Kun Zhao, Xiangbin Yin, Ying Liu, Iltaf Khan, Shu-Yuan Liu
Summary: A Z-scheme g-C3N4/Ag/AgBr heterojunction photocatalyst was prepared via in-situ loading through photoreduction method. The g-C3N4/Ag/AgBr composite showed excellent photocatalytic performance in the degradation of tetracycline hydrochloride pollutants. The main active oxygen species involved in the degradation of organic pollutants were O2^- and (OH)·.
FRONTIERS IN CHEMISTRY
(2022)
Article
Engineering, Environmental
Haiying Du, Yuhao Ma, Xiaoqian Du, Wentao Zhang, Xianfei Chen
Summary: In order to tackle the contamination of organic antibiotics in water environment, a hierarchical structure of 3D/2D CuBi2O4@Bi2O2CO3 (CBO@BOC) was formed by growing Bi2O2CO3 nanosheets on the surface of CuBi2O4 microspheres. The removal efficiency of the as-prepared CBO@BOC composites for tetracycline hydrochloride (TCH) was significantly enhanced due to the synergistic effects of adsorption and photocatalysis. Moreover, the CBO@BOC composite showed excellent removal ability for TCH in various environments and demonstrated good cycling stability. The photocatalytic process involved the utilization of •O2- and h+ as the primary active components to fully oxidize TCH, establishing a Z-scheme heterojunction photocatalysis mechanism.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
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)