Article
Green & Sustainable Science & Technology
Dan Li, Shijun Lei, Ping Wang, Lei Zhong, Wenchao Ma, Guanyi Chen
Summary: Pyrolysis is a promising technology for recovering valuable hydrocarbons from waste streams. This study investigated three types of waste plastics and their mixed forms to explore thermal cracking features, products distribution, and kinetic features. Results showed differences in pyrolysis products and reaction processes among different types of plastics, with synergistic effects observed during co-pyrolysis processes.
Article
Thermodynamics
Wenwen Kong, Boxiong Shen, Jiao Ma, Jia Kong, Shuo Feng, Zhuozhi Wang, Lifu Xiong
Summary: The pyrolysis characteristics of Spirulina platensis, Tetradesmus obliquus, and Chlorella vulgaris were investigated by various techniques. The elemental and biochemical composition of different microalgae influenced their pyrolysis behavior. The pyrolysis process of the three microalgae could be divided into several stages, and the major reaction occurred at a certain temperature range. Different products and activation energies were observed for each microalgae. The pyrolysis of Spirulina platensis produced more CO2 and compounds containing C=O bonds, while Tetradesmus obliquus and Chlorella vulgaris produced slightly higher levels of hydrocarbons.
Article
Energy & Fuels
Lichao Ge, Can Zhao, Mingjin Zuo, Yuying Du, Jie Tang, Huaqiang Chu, Yang Wang, Chang Xu
Summary: In this study, the pyrolyzed influence of Fe contents on lignin, cellulose and hemicellulose was investigated using thermogravimetric and Fourier transform infrared spectroscopy. The results showed that the addition of Fe increases the yield of cellulose biochar, and the yield of lignin and hemicellulose biochar is also affected by Fe addition. The kinetic analysis revealed that Fe supplementation affects the activation energy of lignin, cellulose and hemicellulose differently. The release characteristics of the pyrolysis products were also influenced by Fe addition.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Energy & Fuels
Lihui Ye, Rongrong Wang, Guangbo Ji, Haohao Wu, Hao Qu, Lu Wang, Jian Liu
Summary: This study analyzed the pyrolysis kinetics of Chaohu algae to produce biochar and demonstrate its potential for electrochemical applications. Various characterization techniques were used to evaluate the properties of the biochar, revealing its unique advantages as a functionalizing material for electrodes in electrochemical applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Jianxing Li, Zepei Yan, Ming Liu, Xiaokun Han, Tianyun Lu, Ruiyin Liu, Shugao Zhao, Qing Lv, Bo Li, Shengqin Zhao, He Wang
Summary: In this study, a novel environmental flame retardant (Lig-K-DOPO) based on lignin, silicon, phosphorus, and nitrogen was synthesized. Lig-K-DOPO exhibited enhanced thermal stability and promoted the curing rate and crosslink density of SBR. It also showed impressive flame retardancy and smoke suppression. The addition of Lig-K-DOPO significantly reduced the peak heat release rate, total heat release, smoke production rate, and peak smoke production rate of SBR blends.
Article
Environmental Sciences
Li Xu, Shengcai Li, Youchao Zhang, Wanghu Sun, Longwei Pan, Lei Wang
Summary: This study investigates the pyrolysis behavior of waste plastics. Through experimental analysis and modeling, the kinetic characteristics and reaction mechanism of the pyrolysis process are analyzed and optimized.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Energy & Fuels
Xiaoli Duan, Guoliang Jin, Luyao Zhang, Zishuai Xu, Ruxin Zhang, Jianlong Wang
Summary: ReaxFF molecular dynamics (ReaxFF MD) simulations in conjunction with TG-FTIR-MS techniques were used to study the pyrolysis mechanism of DPT. The simulation results revealed the evolution of primary intermedia products and final products of DPT decomposition at the atomic level. The pyrolysis of DPT is primarily triggered by N-NO2 rupture, and the final products include H2O, N-2, NH3, and C network. The volatile gases detected by ReaxFF MD are confirmed by TG-FTIR-MS techniques, demonstrating the reliability of the theoretical simulations.
Article
Chemistry, Analytical
Yuting Wu, Qilin Gui, Han Zhang, Honghong Li, Bin Li, Ming Liu, Yingquan Chen, Shihong Zhang, Haiping Yang, Hanping Chen
Summary: The first step in uncovering pyrolysis interaction is to understand the pyrolysis reaction kinetics and small-molecule product release mechanisms of biomass components. The cross-coupled thermal decomposition properties, gaseous product release characteristics, and functional group evolution of cellulose, hemicellulose, and lignin were investigated to better understand the biomass pyrolysis interaction. Adjusting the composition ratio of biomass can alter the pyrolysis reaction kinetics as well as product composition and distribution.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Agricultural Engineering
Wenmei Tao, Peng Zhang, Xingwei Yang, Hao Li, Yi Liu, Bo Pan
Summary: In this study, the pyrolysis reaction of peanut shell was investigated, revealing the mechanism through the analysis of thermodynamic and kinetic parameters along with the reaction products. The results showed that the pyrolysis reactions of peanut shell were endothermic and nonspontaneous, with three sub-stages having distinct reaction mechanisms.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Jiangfei Duan, Shengxia Feng, Weilong He, Rui Li, Peng Zhang, Yu Zhang
Summary: The manuscript utilized TG-FTIR, Py-GC/MS, and kinetic models to study the pyrolysis characteristics of electrolytic manganese residue. The pyrolysis process was divided into five stages, each with different kinetic mechanisms and released gases, with NH3, CO2, and SO2 as the major gases. The intermediate product of CO was unstable and participated in reactions promoting the formation of CO2 and SO2.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Thermodynamics
Jiaqing Zhang, Fengju Shang, Yubiao Huang, Juan Zhang, Yi Guo, Lingxin He, Liufang Wang, Taiyun Zhu, Rui Liu, Ping Liu, Yanming Ding
Summary: This study investigated the pyrolysis characteristics and reaction mechanism of organic fireproof plugging material (OFPM) in a nitrogen atmosphere. The results showed that the pyrolysis process could be divided into four stages, and the reaction mechanisms were identified. The accuracy of the obtained parameters was validated through the prediction of experimental data. Furthermore, the gas analysis revealed the composition of evolved gases during the pyrolysis process.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Agricultural Engineering
Chaowei Ma, Fengxia Zhang, Huili Liu, Hua Wang, Jianhang Hu
Summary: In this study, the pyrolysis kinetics of tobacco stems (TS) were analyzed using thermogravimetric analysis and Fourier transform infrared spectroscopy. The results showed that the pyrolysis of TS can be accurately modeled with three parallel decomposition fractions, and the average activation energies for different components were calculated.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Samy Yousef, Ieva Kiminaite, Justas Eimontas, Nerijus Striugas, Mohammed Ali Abdelnaby
Summary: The catalytic pyrolysis process was used to decompose the organic fraction of end-of-life glass fibre-reinforced epoxy resin composites (GFRP) and recover phenol. The catalyst concentration had a significant impact on the pyrolysis kinetics and yield.
Article
Thermodynamics
Lichao Ge, Can Zhao, Simo Chen, Qian Li, Tianhong Zhou, Han Jiang, Xi Li, Yang Wang, Chang Xu
Summary: In the preparation process of coal-based activated carbon, the carbonization process plays a significant role in the release of volatiles and the formation of pore structure. This study analyzed the properties of two raw materials and investigated their pyrolysis carbonization characteristics using thermogravimetric and Fourier transform infrared spectroscopy. The results showed that the heating rate had a significant impact on the release of volatiles during the carbonization process.
Article
Engineering, Environmental
Fahim Ullah, Guozhao Ji, Lei Zhang, Muhammad Irfan, Zegang Fu, Zakia Manzoor, Aimin Li
Summary: The COVID-19 pandemic has led to an increase in medical waste, and proper disposal is crucial to prevent disease transmission. Advanced analytical techniques were used to study the pyrolysis reactions and gas release behavior of medical waste. The results showed that different waste types have different temperature ranges and activation energies during pyrolysis. Pyrolysis of mixed waste releases various volatile components.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Medicinal
Le Qi, Mou-Cui Li, Jia-Chao Bai, Ying-Hui Ren, Hai-Xia Ma
Summary: Six disubstituted Schiff base compounds were synthesized and characterized. Compounds A1 and A2 showed good antifungal activity against Wheat gibberellic, with A1 and A2 having the smallest docking energy. Analysis using density functional theory further explained the reasons behind the good activity of these compounds.
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
Zhuo Li, Bing Wang, Guo-Yi Cui, Bing-Bing Zhang, Ya-Fei Wang, Lin Yang, Hai-Xia Ma, Lin-Yu Jiao, Ling-Yan Pang, Xiao-Xun Ma
Summary: In this study, a highly active TiO2 sensitized by a novel axial substituted subphthalocyanine was successfully prepared, and a new packing motif of the sensitizer was discovered for the first time, showing significant impact on its catalytic performance. Through experimental and computational methods, the electronic properties of the sensitizer were studied, confirming the excellent photocatalytic performance of TiO2/SubPc-3 in degrading pollutants under visible light.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Yue Yin, Xiaoyang Li, Haixia Ma, Jie Zhang, Di Yu, Ruifang Zhao, Shengji Yu, Guangjun Nie, Hai Wang
Summary: The research team developed a transformable hydrogel that can generate nanovaccines for up to 30 days after injection, showing promising potential for effective cancer immunotherapy.
Article
Microbiology
Ya-Nan Zhao, Shuang-Hui He, Karen K. Nakasone, K. L. Wasantha Kumara, Che-Chih Chen, Shi-Liang Liu, Hai-Xia Ma, Man-Rong Huang
Summary: The study focused on the phylogeny and taxonomy of the corticioid genus Phlebiopsis, identifying new taxa and proposing new combinations while clarifying and comparing morphologically similar species. This research provides a detailed analysis of the relationship between Phlebiopsis and its sister clades, as well as an updated description of the genus and an identification key to accepted species.
FRONTIERS IN MICROBIOLOGY
(2021)
Review
Thermodynamics
Haixia Ma, Zhongxing Li, Zhidong Wang, Ruijue Feng, Gang Li, Jiangyuan Xu
Summary: The article presents a non-contact braking distance measuring device for escalators based on the infrared ranging principle, and proposes a quantifiable risk assessment method for brake based on FMEA. The accurate measurement of braking distance is achieved through high-speed infrared distance measurement technology. By studying the influencing factors of escalator brake performance and using a risk analysis method, a risk index assessment system is constructed.
ADVANCES IN MECHANICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Lin Yang, Bingbing Zhang, Zhuo Li, Chen Wang, Linyu Jiao, Bing Wang, Yafei Wang, Haixia Ma, Xiaoxun Ma
Summary: Utilizing subphthalocyanine and 4,4'-dihydroxybiphenyl, a novel axial substituted SubPc derivative was synthesized by solvothermal method and decorated onto TiO2 nanoparticles to fabricate a highly efficient photosensitive catalyst. The composite showed outstanding performance in organic dye degradation and demonstrated remarkable stability, providing new ideas for the construction of photosensitive catalysts for water purification based on TiO2.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yulei Guan, Xingzhen Zhu, Yanyan Gao, Haixia Ma, Jirong Song
Summary: This study re-examines the CO-NO bond dissociation mechanism of the nitrite isomer of 1,1-diamino-2,2-dinitroethylene, confirming the presence of an activated barrier in the dissociation process and proposing the involvement of a radical-radical adduct in the exit dissociation path. Predicted activation and reaction enthalpies, as well as a kinetic model based on reaction energetics and transition-state theory, provide valuable insights into the dissociation process.
Article
Chemistry, Physical
Bing Wang, Carlota Bozal-Ginesta, RuiQing Zhang, Bo Zhou, HaiXia Ma, LinYu Jiao, Long Xu, EnZhou Liu, Chen Wang, Zhuo Li
Summary: A novel axially substituted supramolecular nanocrystalline subphthalocyanine H12SubPcB-OPhCOPh (SubPc-4) was successfully synthesized and self-assembled on TiO2 to form a Z-scheme photocatalytic system, showing high photoactivity and stability for degrading organic pollutants. The hybrid exhibited significantly higher degradation efficiency and retained photocatalytic activity after multiple cycles, indicating its potential application in wastewater treatment.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Ting Zhang, Jiachen Li, Zhao Qin, Cuicui Li, Hongxu Gao, Fengqi Zhao, Haixia Ma
Summary: The study synthesized bismuth-modulated hematite as a catalyst for energetic materials thermolysis and found that it can reduce the initial thermal decomposition temperature and activation energy of HMX, leading to faster energy release during thermite reaction.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Haixia Ma, Yufei Zhang, Tianjiao Duan, Jing Zhang, Fatang Yang, Yuhui Zhang, Yuming Dong
Summary: The functionalized organic polymer monolithic column was successfully synthesized and showed excellent performance in separating neutral, phenolic, and aniline compounds. The addition of ionic liquid reduced the column pressure and improved the separation efficiency.
Article
Materials Science, Multidisciplinary
Pan Dong, Yanna Zhang, Shidong Zhu, Zhen Nie, Haixia Ma, Qiang Liu, Jinling Li
Summary: The adsorption characteristics of corrosive anions on the TiO2 surface of TC4 titanium alloy were studied using density functional theory. The results showed that the optimal adsorption positions were bridge positions, and the interface bonding was mainly caused by charge movement. The adsorption configurations were all chemical adsorption. A novel corrosion mechanism for the dynamic evolution processes of pits was proposed based on the findings.
Article
Chemistry, Physical
Shidong Zhu, Ke Wang, Haixia Ma, Pan Dong
Summary: The severe service environment of OCTG in oil and gas fields due to the affinity between corrosive species and metal ions necessitates the study of the corrosion-resistant behavior of TC4 alloys. In this paper, the thermodynamic characteristics of the TiO2(100) surface of TC4 alloys in the CO2-H2S-Cl- system were simulated and analyzed, and the simulation results were verified using corrosion electrochemical technologies. The results provide theoretical support for understanding the corrosion resistance mechanism of OCTG and developing novel corrosion inhibitors in CO2-H2S-Cl- environments.
Article
Chemistry, Multidisciplinary
Fei Yuan, Hai-Xia Ma, Chun-Mei Yuan, Chun-Sheng Zhou, Huai-Ming Hu, Abhinav Kumar, Mohd Muddassir
Summary: Three new Ln(iii)-based metal-organic frameworks were synthesized using multifunctional triazole-carboxylate linker and dicarboxylate ligand. The structures of the complexes were found to be isostructural, with Nd-based MOF 1 showing promising photocatalytic properties for degrading organic dye under UV light. The study also provided insights into the framework interactions and photocatalytic mechanisms through theoretical calculations.
Article
Chemistry, Multidisciplinary
Yanfei Cheng, Xiang Chen, Na Yang, Yazhou Zhang, Haixia Ma, Zhaoqi Guo
Summary: This study presents the design and synthesis of two new low-sensitive nitroamine explosives, with their molecular structures confirmed using X-ray diffraction. The explosives showed high positive enthalpies of formation and good detonation performances, as well as low impact sensitivity, making them promising candidates for practical applications. Additionally, analyses were conducted to investigate the intermolecular interactions and the relationship between structures and molecular stabilities.
Article
Ethics
Haixia Ma, Alice Yuen Loke
Summary: This study found that nurses have different attitudes towards female sex workers, and they also experience feelings of reluctance, hesitation, or willingness to care for them. Multi-level factors could affect their level of comfort in providing care to female sex workers.