Article
Chemistry, Multidisciplinary
Xianxian Sheng, Zhiqiang Xu, Yulong Liu, Peng Wang, Jiaqi Dong, Zhanpeng Lu, Ali Shan, Shuguang Lyu
Summary: The study investigated the removal performance and degradation mechanisms of fluoranthene in a sodium percarbonate (SPC) activated by Fe(II) system. Results showed that increasing the dosages of SPC and Fe(II) and adjusting the initial solution pH to 5.0 could improve the removal efficiency of FLT in actual groundwater. This study demonstrates the potential of SPC/Fe(II) system in remediating FLT-contaminated groundwater.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Environmental Sciences
Jingyao Huang, Zhengyuan Zhou, Meesam Ali, Xiaogang Gu, Muhammad Danish, Qian Sui, Shuguang Lyu
Summary: This study investigated the remediation technology of citric acid-enhanced Fe(II) activation in sodium percarbonate system for degrading trichloroethene (TCE). The results showed that the addition of citric acid could effectively promote TCE degradation by increasing the generation of hydroxyl radicals, while SDS had an inhibitory effect on TCE degradation. The technique demonstrated great potential for practical application in groundwater remediation.
Article
Engineering, Environmental
Usman Farooq, Muhammad Sajid, Ali Shan, Xinhai Wang, Shuguang Lyu
Summary: The study found that the dual nature of cysteine can enhance the degradation of TCA in the Fe(II)/SPC system. The system showed excellent recyclability and stability characteristics, indicating its potential for real-time industrial applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Yangju Li, Haoran Dong, Long Li, Junyang Xiao, Shuangjie Xiao, Zilan Jin
Summary: In this study, the novel application of chalcopyrite for sodium percarbonate activation towards sulfamethazine degradation was explored. The mechanism of SPC activation by CuFeS2 was elucidated to involve multiple reactive oxygen species processes, with hydroxyl radical playing a key role in SMT degradation.
Article
Environmental Sciences
Liu Guo, Ziqiu Nie, Lijia Wen, Bohan Chen, Jie Tang, Man Gao, Jiajing Chen, Jingjing Liu
Summary: This study found that natural pyrite (FeS2) can effectively activate sodium percarbonate (SPC) and has good catalytic activity and stability for the removal of tetracycline. The SPC/FeS2 system achieved a tetracycline degradation efficiency of 70% within 10 minutes, with nearly half degraded in the first 5 minutes. The optimum SPC dosage was 8 mM, with FeS2 dosage of 0.5 g/L, and the tetracycline removal efficiency remained above 60% after 4 cycles.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Li Li, Ruoning Guo, Sai Zhang, Yiming Yuan
Summary: Sodium percarbonate (SPC) has been widely used as a solid replacement for H2O2 in advanced oxidation processes (AOPs). This study investigated the degradation performance of aniline using UV-activated SPC. The results showed that increasing SPC dosage or UV irradiation intensity significantly improved the removal efficiency. Reactive species such as ·OH, CO3·-, and O-2·- were found to play a predominant role in aniline degradation. The addition of Fe(II) in the UV/SPC system enhanced the degradation, while NO3-, HCO3-, and humid acid suppressed the reaction.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Haiying Gao, Hui Yu, Jun Yu, Tianhui Xu, Yiming Feng, Yan Wang, Jun Qian, Chaoqun Tan
Summary: An origin Fenton-like system using sodium percarbonate (SPC) as the source of H2O2 and crystal boron (C-boron) as an enhancer was discussed for the removal of refractory contaminants. The system efficiently degraded four target pollutants, with degradation rates up to 81.1% (aspirin), 92.8% (nitrobenzene), 94.7% (flunixin meglumine), and 94.3% (benzoic acid) respectively, and total organic carbon removal up to 25.0%. The conversion of Fe2+/Fe3+ was promoted by C-boron, and degradation reactions at acidic pH were faster than at neutral and alkaline pH. Reactive oxygen species including ·OH, 1O2, and O2·- were identified, with ·OH contributing most to the decomposition of contaminants. The system also exhibited potential for water treatment through the elimination of natural organic matter and material recycling, although additional research is needed to address the high algae toxicity.
Article
Engineering, Environmental
Xuecheng Sun, Xiaogang Gu, Shuguang Lyu
Summary: The study compared the degradation performances of chlorobenzene using different oxidants activated with ferrous iron. The results showed that increasing the dosage of oxidants or Fe(II) improved the removal rate of chlorobenzene. Optimal molar ratios were determined for each system, with pH conditions significantly affecting the degradation performance. Hydroxyl radicals and singlet oxygen were detected, and the pathways of chlorobenzene degradation were proposed, highlighting the innovative role of singlet oxygen in the mechanism. Additionally, the adverse effects of complex groundwater matrices could be overcome by increasing the molar ratio of oxidant/Fe(II)/chlorobenzene.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Xianxian Sheng, Shuguang Lyu
Summary: In this study, fluoranthene (FLT) was efficiently degraded using a SPC/Fe(II)/S-nZVI system, with a removal efficiency of 90.9% within 60 minutes. The oxidation system involved the generation of reactive oxygen species such as HO center dot, O-2(-)center dot, and O-1(2). Three potential FLT degradation pathways were proposed based on the analysis of degradation intermediates. The study also demonstrated the effectiveness of the system in actual groundwater and soil slurry tests.
Article
Engineering, Chemical
Hui Xia, Tao Lyu, Jungang Guo, Chuanqi Zhao, Yuesuo Yang
Summary: Groundwater can be contaminated by both organic micropollutants and inorganic heavy metals. Advanced nanomaterials, such as nano-calcium peroxide (nano-CaO2), have been developed for the effective remediation of these contaminants. The study investigated the simultaneous removal of p-nitrophenol (PNP) and cadmium (Cd) using nano-CaO2 and Fe(II) catalysis. The results demonstrated high removal rates for both contaminants, with hydroxyl radicals and singlet oxygen being the major reactive species. The study provides new insights into the remediation of multiple contaminants in groundwater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shaona Chen, Yanhua Liang, Bo Li, Shuping Yang, Shilin Sun, Zihan Yang, Xu Meng, Zhongxu Dai, Xiang Liu
Summary: Recently, sodium percarbonate (SPC) has been used as a potential alternative to liquid H2O2 for advanced oxidation processes in waste treatment. In this study, CoOx nanoparticles were stabilized at the surface of graphene oxide (GO) to form a two-dimensional nanohybrid structure, which exhibited superior catalytic activity for tetracycline degradation via SPC activation. The electron transfer from GO to Co atoms played a significant role in the activation of SPC.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Environmental Sciences
Mingxin Huo, Deqiang Zou, Yingzi Lin, Yi Lou, Gen Liu, Siwen Li, Lei Chen, BaoLing Yuan, Qingyu Zhang, Ao Hou
Summary: Pharmaceuticals have become a significant environmental concern due to population growth, industrial expansion, and changes in modern lifestyles. This study introduces a Fe(II)/percarbonate (SPC) process with enhanced efficiency using zerovalent iron (ZVI). The results show improved removal rates of nizatidine (NZTD) with the addition of ZVI, which can contribute to the understanding of NZTD migration and transformation in the oxidation process, and provide a scientific basis and technical support for NZTD removal in tertiary water treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Chemical
Yong Sun, Xuecheng Sun, Meesam Ali, Ali Shan, Ayesha Idrees, Chaoxiang Yang, Shuguang Lyu
Summary: The role of bisulfite (HSO3-) in the nCaO(2)/Fe(III)/HSO3- system in promoting HO center dot generation and improving trichloroethene (TCE) removal was reported. The complexing and reducing effects of HSO3- on Fe(III) conversion to Fe(II), as well as the generation of SO4-center dot, were identified as the main mechanisms for enhancing TCE removal. Various reactive oxygen species (ROSs) were found to contribute to TCE degradation, with HO center dot being the dominant species in the nCaO(2)/Fe(III)/HSO3- system.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Rui Liu, Mu-cheng Xu, Jin-yan Yang
Summary: This study investigated the degradation and mechanism of heterogeneous V2O3-activated sodium percarbonate (SPC) process in the presence of oxalic acid (OA). The results showed that SMX degradation strongly depended on SPC dosage and had a wide adaptability to ambient pH in the V2O3/SPC/OA system. Mechanistic experiments revealed the crucial role of (OH)-O-center dot in SMX degradation, and the introduction of OA facilitated the removal process. The presence of certain substances inhibited the decontamination of SMX to varying degrees.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Rumin Yang, Guilu Zeng, Zhiqiang Xu, Zhengyuan Zhou, Jingyao Huang, Rongbing Fu, Shuguang Lyu
Summary: The presence of polycyclic aromatic hydrocarbons (PAHs) in groundwater poses a significant threat to human health worldwide, with Fenton oxidation processes showing promising results in removing naphthalene (NaP). Among different oxidants, hydrogen peroxide (H2O2) proved to be the most effective in degrading NaP. Additionally, the inhibitory effects of weak alkaline pH and HCO3- in actual groundwater can be counteracted by increasing dosages of oxidants and Fe(II).
Correction
Engineering, Environmental
Yong Sun, Muhammad Danish, Meesam Ali, Ali Shan, Ming Li, Yanchen Lyu, Zhaofu Qiu, Qian Sui, Xueke Zang, Shuguang Lyu
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Tangqing Cao, Wenqi Guo, Wang Lu, Yunfei Xue, Wenjun Lu, Jing Su, Christian H. Liebscher, Chang Li, Gerhard Dehm
Summary: The mechanical behavior and deformation mechanisms of a body-centered cubic high entropy alloy were investigated at different temperatures and strain rates, revealing an increase in yield stress with increasing strain rate and a transition from strain softening to strain hardening at lower temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Guilu Zeng, Rumin Yang, Zhengyuan Zhou, Jingyao Huang, Muhammad Danish, Shuguang Lyu
Summary: This study investigated the degradation performance of naphthalene (NAP) in aqueous solution and soil slurry medium using nano zero valent iron (nZVI) combined with citric acid (CA) activation in peroxodisulfate (PDS) and peroxymonosulfate (PMS) oxidation systems. The results showed that NAP could be degraded by 98.1% and 98.9% in the PDS/nZVI/CA and PMS/nZVI/CA systems within 2 hours. In addition, the presence of CA promoted the dissolution of soil minerals and the desorption of NAP from soil medium. The existence of dissolved organic matter (DOM) in soil facilitated the Fe(II)/Fe(III) cycle and electron transfer during NAP degradation.
Article
Materials Science, Multidisciplinary
Qian Zhang, Ruirui Huang, Jiaxi Jiang, Tangqing Cao, Yongpan Zeng, Jianguo Li, Yunfei Xue, Xiaoyan Li
Summary: As a new class of revolutionary alloy materials, high entropy alloys (HEAs) have been extensively studied due to their unique composition, microstructures, and superior mechanical properties. This study focused on the deformation behavior and mechanisms of HEA single crystals at the micro/nanoscale, revealing different size effects and deformation mechanisms in crystals with different orientations, providing insights for the design and fabrication of high-strength HEAs with remarkable plasticity.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Bo Cheng, Yunkai Li, Xiaoxi Li, Huibin Ke, Liang Wang, Tangqing Cao, Di Wan, Benpeng Wang, Yunfei Xue
Summary: The crystal structure, microstructure and hydrogen storage performance of a series of high-entropy alloys in the Ti-V-Nb-Cr system were investigated. It was found that one alloy exhibited a high hydrogen storage capacity. The addition of Mn, Fe and Ni elements destabilized the hydrides, further improving the kinetics of hydrogen adsorption and dissociation.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Chemistry, Physical
Jiuyan Chen, Lang Xie, Qiang Zhang, Qiqi Wei, Weifeng Chen, Renhui Miao, Zhichong Qi
Summary: This study investigates the effects of anionic surfactants on the transport of carbon dots nanoparticles in soil. The presence of the surfactant enhances the mobility of the nanoparticles under certain conditions, but it suppresses their mobility in the presence of divalent metal cations. Additionally, the effects of the surfactant on nanoparticle mobility decrease with increasing solution pH.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Environmental
Usman Farooq, Fei Wang, Jingyi Shang, Malik Zeeshan Shahid, Waseem Akram, Xinhai Wang
Summary: This study developed an efficient and environmentally friendly method for remediating groundwater contaminants using a natural organic ligand cysteine. By improving the redox cycling of iron species, the method achieved enhanced degradation of trichloroethylene (TCE) under neutral conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Fuxin Liu, Songshen Chen, Benpeng Wang, Liang Wang, Yao Xiao, Lu Wang, Shihai Sun, Yunfei Xue
Summary: This paper describes the induction of abundant coherent B2 nanoprecipitates in Ti-Zr-Al-Nb-V LHEAs through tailoring the aging treatment, which can strengthen the alloy by around 20%. The inhibition of dislocation propagation and the delocalization of deformation are achieved, leading to considerable improvement in strength and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Metallurgy & Metallurgical Engineering
Xue Yin, Yan-Kun Dou, Xin-Fu He, Ke Jin, Cheng-Long Wang, Ya-Guang Dong, Cun-Yong Wang, Yun-Fei Xue, Wen Yang
Summary: The addition of Nb in TiVTa refractory high-entropy alloy significantly improves impact toughness and strengthens the resistance to crack initiation and propagation. TiVTaNb alloy exhibits larger bending degree of shear lips, deeper dimples, and more secondary cracks, effectively dissipating more impact energy. The deformation mechanism of TiVTaNb is synergized by dislocation activities and deformation twinning, contributing to improved impact properties and stronger crack resistance under impact loading.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Bo Cheng, Lingjie Kong, Yunkai Li, Di Wan, Yunfei Xue
Summary: In recent years, high-entropy alloys (HEAs) have gained significant attention due to their potential for hydrogen storage, fast hydrogen absorption kinetics, and composition selectivity. In this study, three V30Nb10(TixCr1-x)(60) HEAs with different Ti contents were designed and investigated for their microstructure characteristics and hydrogen storage performances. The results showed that the alloys exhibited similar hydrogen release behaviors at different temperatures, with the hydrogen desorption kinetics being controlled by diffusion. The study provides valuable information for the development of high-entropy-based hydrogen storage alloys.
Review
Materials Science, Multidisciplinary
Lingjie Kong, Bo Cheng, Di Wan, Yunfei Xue
Summary: Recently, high entropy alloys (HEAs) with body-centred cubic (BCC) single phase structures have been widely studied for hydrogen storage due to their unique structural characteristics and excellent performance. In this review, the definition and criteria of HEAs are discussed, and the current research status of BCC-structured HEAs for hydrogen storage is summarized from the perspectives of composition designs, synthesis processes, and hydrogen storage properties. Furthermore, the possible application scenarios and future research directions are analyzed.
FRONTIERS IN MATERIALS
(2023)
Article
Medical Informatics
Xiangzhou Zhang, Yunfei Xue, Xinyu Su, Shaoyong Chen, Kang Liu, Weiqi Chen, Mei Liu, Yong Hu
Summary: The study developed a predictive modeling framework based on transfer learning to correct performance drift in clinical prediction models caused by changes in the patient population. The framework effectively utilized new data while preserving old knowledge, resulting in improved model performance.
JMIR MEDICAL INFORMATICS
(2022)
Article
Geosciences, Multidisciplinary
Yan Zhang, Yun-fei Xue, Chun-yang Bu, Ti Li, Xin Zhang, Yu-dong Jin, Yue-wu Sun
Summary: This study identifies two palynological assemblages in the Tongbomiao Formation in the Hailar Basin, Inner Mongolia, China for the first time. These assemblages provide important evidence for biostratigraphic correlation and allow reconstructions of the vegetation and paleoclimate during the Early Cretaceous period.
Article
Chemistry, Analytical
Qiqi Wei, Qiang Zhang, Yihan Jin, Usman Farooq, Weifeng Chen, Taotao Lu, Deliang Li, Zhichong Qi
Summary: To date, there is limited knowledge about the combined effects of inorganic ligands and solution pH values on the mobility of tetracycline (TC) through saturated aquifer media. This study found that inorganic ligands, such as phosphate, silicate, and iodate, enhance the mobility of TC by promoting electrostatic repulsion between sand grains and TC anionic forms, as well as competing for attachment sites. The extent of enhancement depends on ligand type and pH, with phosphate showing the strongest effect. The findings highlight the importance of inorganic ligands in assessing the fate and transport of antibiotics in groundwater systems.
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2022)
Article
Chemistry, Physical
X. X. Wang, W. Q. Wang, W. D. Hutchison, C. W. Wang, H. Y. Hao, F. Su, Y. F. Xue, J. C. Debnath, S. J. Campbell, Z. X. Cheng, J. L. Wang
Summary: The structural and magnetic properties of LaMn2Ge2 compound were studied, revealing its potential for magnetic refrigeration applications at room temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)