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
Environmental Sciences
Weijie Xu, Jingyong Liu, Ziyi Ding, Jiawei Fu, Fatih Evrendilek, Wuming Xie, Yao He
Summary: This study characterized and verified the pyrolysis mechanisms and volatiles products of medical mask belts, mask faces, and infusion tubes. The results are important for the treatment of medical wastes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Gang Zhang, Qiuyuan Feng, Jinwen Hu, Guang Sun, Fatih Evrendilek, Hui Liu, Jingyong Liu
Summary: The pyrolysis of bamboo shoot leaves (BSL) was studied for bio-oil generation, with main mass loss occurring between 200 and 550°C. The estimated activation energies and reaction mechanisms accurately predicted the pyrolysis process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
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
Chemistry, Analytical
Adili Batuer, Jisheng Long, Hailiang Du, Dezhen Chen
Summary: This study investigated the pyrolysis characteristics of dry waste components (plastics, papers, and textiles) of municipal solid waste. The results showed that co-pyrolysis under proper blend ratios can improve the quality of pyrolysis products and enhance the recycle of plastics. Different blend ratios can lead to different desired products.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Agricultural Engineering
Muhammad Sajjad Ahmad, Chen-Guang Liu, Muhammad Nawaz, Abdul Tawab, Xiaoqian Shen, Boxiong Shen, Muhammad Aamer Mehmood
Summary: The study focused on evaluating the bioenergy potential of waste biomass of desert plant Calotropis procera. Pyrolysis reactions mainly occurred between 200 and 450 degrees Celsius with thermodynamically favorable conditions observed. Evolved gases were dominated by specific organic compounds.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Ziyi Ding, Huashan Chen, Jingyong Liu, Haiming Cai, Fatih Evrendilek, Musa Buyukada
Summary: This study characterized the pyrolysis process of medical plastic wastes through TG-FTIR and Py-GC/MS analyses, finding that medical bottles showed better pyrolysis performance with lower residue content.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
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
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
Jinlong Zhao, Hanchao Ma, Hong Huang, Jianping Zhang, Youliang Chen
Summary: This paper investigates the thermo-oxidative degradation process of PVC-based mining cable sheath and develops an oxidative pyrolysis model based on experimental and numerical studies. The findings reveal that the degradation processes of the cable sheath are more complicated than pure PVC, with seven distinct steps. By calculating the kinetic parameters, the reaction mechanisms and associated kinetics are determined, which can be applied in pyrolysis and fire modeling, waste recycling, and risk assessment.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Ang Li, Biqing Huang, Wenlong Zhang, Yanming Ding, Ru Zhou
Summary: The pyrolysis gas products of chlorinated polyvinyl chloride (CPVC) were analyzed based on TG-FTIR-MS, showing two main stages with different gas products. Additionally, the combustion properties and smoke production of CPVC were analyzed in cone calorimeter experiment.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
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
Engineering, Environmental
Quan Chen, Fanfan Xu, Peijie Zong, Fanhao Song, Bo Wang, Yuanyu Tian, Fengchang Wu, Xiaoli Zhao, Yingyun Qiao
Summary: This study investigated the thermal decomposition process and product formation mechanisms of waste tires in the presence of calcium oxide. The results showed that calcium oxide could enhance the production of isoprene and D-limonene and had an impact on desulfurization process.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Analytical
Huashan Li, XianJin Lyu, Wuming Xie, Ziyi Ding, Yong Liu, Jingyong Liu, Fatih Evrendilek, Ruili Zheng, Jianfang Lyu, Chunxiao Yang
Summary: The study investigated the co-pyrolysis of pineapple rind (PR) and low density polyethylene (LDPE) to understand its kinetic, interaction mechanisms, and product characteristics. The co-pyrolysis exhibited synergistic and antagonistic effects at different temperature ranges. The activation energy for co-pyrolysis was lower than that of individual PR or LDPE. The addition of 50% LDPE resulted in the lowest activation energy requirement. The co-pyrolysis inhibited the production of CO2 and promoted the formation of CH4, leading to improved pyrolytic oil quality. Multi-objective optimization suggested the optimal operational conditions for co-pyrolysis of 50% LDPE and 50% PR. This study provided valuable insights for optimizing the co-pyrolysis of fruit residues and plastic polymers.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Thermodynamics
Fangyu Fan, Zongling Yang, Xianjun Xing
Summary: Corn straw, as a large-yield agricultural waste, can be thermochemically treated for comprehensive utilization. Advanced techniques like TG-FTIR and TG-GC/MS were used to analyze the pyrolysis process more clearly. Results showed that the pyrolysis of corn straw leads to the production of various volatile organic compounds, with significant changes in composition at different temperatures.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Engineering, Environmental
Shuo Chen, Ting-Ting Qian, Ren Zhu, Hong Jiang
Summary: The optimal ratio of rutile for six pollutants was found to be in the range of 0.347 to 0.384, with the BET specific surface area having little effect on the photocatalytic system. The interaction between Energy gap (Eg) and Photoluminescence intensity (PL) was identified as the most important parameter in positively affecting photocatalytic reaction kinetics, while Eg and PL intensity individually had negative effects on UV photocatalytic reaction kinetics.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Zhu Ren, Shuo Chen, Shun-Feng Jiang, Wei-Fei Hu, Hong Jiang
Summary: A solar/chlorine/graphitic carbon nitride system was developed for highly efficient degradation of carbamazepine, achieving a removal rate of 97.8%. Ground-state atomic oxygen played a more important role than hydroxyl radicals in the degradation process, revealing a novel O-3-related pathway. This study improved understanding of O(P-3) effects and provided insight into its potential oversight in photocatalytic processes involving organic pollutants.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Environmental Sciences
Ziying Hu, Xianyang Shi, Hong Jiang
Summary: The study demonstrates that temperature is the most important factor influencing the properties of hydrochar and DOM under hydrothermal carbonization conditions. DOM released by hydrochar at a low temperature mainly contains protein substances that promote microbial growth, while DOM released at a high temperature contains humic substances toxic to microorganisms.
Article
Engineering, Chemical
Shun-Fong Jiang, Lu-Lu Wang, Wei-Fei Hu, Ke Tian, Hong Jiang
Summary: A flower-like CuFe2O4 nanostructure synthesized by a self-templating method exhibits high catalytic performance for the activation of peroxymonosulfate to degrade carbamazepine. The removal efficiency of CBZ by the flower-like CuFe2O4 remains high after multiple cycles.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Environmental Sciences
Kun-Fang Xi, Wei-Fei Hu, De-Chang Li, Shun-Feng Jiang, Hong Jiang
Summary: The critical temperature during soil pyrolysis has a significant impact on the characteristics of dissolved organic matter (DOM) and phytotoxicity, affecting wheat growth differently at different temperature ranges. Fluorescent components are positively correlated with phytotoxicity, suggesting the need to consider temperature factors in pyrolytic remediation of oil contaminated soil.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Jing Yang, Shun-Feng Jiang, Wei-Fei Hu, Hong Jiang
Summary: This study demonstrates the use of ultrathin MoS2 nanosheets as a promising catalyst for enhancing electrochemical dehalogenation of halogenated antibiotics. The ultrathin MoS2 electrode showed significantly higher reaction rate constant and lower biotoxicity compared to commercial MoS2 and bare carbon paper electrodes. The dechlorination process was achieved through direct electron transfer and indirect reduction of active H*, and was minimally affected by environmental conditions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Bin-Hai Cheng, Lin-Jie Deng, Jun Jiang, Hong Jiang
Summary: The study proposes a facile method to prepare nitrogen and oxygen-rich porous biochar by pyrolysis of chitosan under CO2 atmosphere, and demonstrates the high performance of the obtained metal-free carbon material catalyst in cycloaddition of CO2 to epoxides. Doped nitrogen and oxygen show a synergistic effect for this addition reaction, and the catalytic efficiency can be enhanced through tuning the content of nitrogen and oxygen.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Zi-Ying Hu, Shun-Feng Jiang, Xian-Yang Shi, Hong Jiang
Summary: This study explores a microbial pretreatment method for wastewater treatment, which effectively reduces the secondary pollution to the environment during the conversion process of algal biomass by improving the bioavailability of the wastewater and reclaiming nutrients. It has the potential for environmental and economic benefits.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Shu-Zhe Zhang, Shuo Chen, Hong Jiang
Summary: In this study, a high accuracy BPANN model was developed to predict denitrification efficiency using a 1-year operating database. The model can be applied to different treatment processes and can be adjusted by optimizing the training data ratio.
Article
Engineering, Chemical
Wei-Fei Hu, Shuo Chen, Hong-Chao Hao, Hong Jiang
Summary: This study proposes a novel method to enhance the photoreactivity of an MOF catalyst by grafting isocyanate bonds and sulfhydryl-complexed copper onto ZIF-8. The grafting process alters the electronic structure of the material, enhancing light responses and improving photoreactivity. This research provides a new approach to improve the photoactivity of environmental functional materials with wide bandgaps.
Article
Engineering, Environmental
Zi-Ying Hu, Xia Chen, Hong Jiang
Summary: The conversion of waste biomass to hydrochar by hydrothermal carbonation is an effective method to reduce environmental load. The combined utilization of hydrochar can provide nutrients for plants and significantly reduce environmental impacts in terms of global warming, freshwater aquatic ecotoxicity, and eutrophication.
ACS ES&T ENGINEERING
(2023)
Article
Physics, Atomic, Molecular & Chemical
Wan-qun Hu, Shuo Chen, Hong Jiang
Summary: Crayfish shell has the potential to be a biosorbent for heavy metal removal, particularly for Cu2+ and Pb2+.
CHINESE JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Engineering, Environmental
Shuo Chen, Shu-Zhe Zhang, Hong-Chao Hao, Ya-Li Chen, Hong Jiang
Summary: By dual-ions (F and P) co-doping, the efficiency and stability of TiO2 in visible light absorption and photo-generated charge separation were significantly improved. FP3-TiO2 (001) exhibited excellent recycling and environmental stability, possibly due to the formation of Ti-IV-OOH and the continuous shift between it and its exited state.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Bu-De Xu, Ting-Ting Qian, Shuo Chen, Jing Yang, Hong Jiang
Summary: The one-pot fast pyrolysis of FeSO4-loaded lignocellulosic biomass was proposed to obtain highly stable biochar-supported S-nZVI nanoparticles for efficient removal of diclofenac in water. The improved reactivity of S-nZVI/BC-800 can be attributed to the formation of iron sulfides in ZVI particles, which increased the electrical conductivity and improved the material selectivity for the reduction of DCF in the water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)