Article
Energy & Fuels
Zhixing Li, Jiaxin Jing, Kechang Gao, Gaomiao Ren, Jingwen Zhang, Weizhou Jiao, Youzhi Liu
Summary: In this study, high-gravity intensified heterogeneous catalytic ozonation using Mn-Fe/ZSM-5 as the packing material was proposed for degradation of nitrobenzene in wastewater. The results demonstrated that this technology can effectively improve the degradation efficiency of organic wastewater.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Environmental Sciences
Min-Ji Ha, Jung Eun Lee, Y. Park, Jin Sun Cha, Young-Min Kim, Beom-Sik Kim
Summary: The catalytic ozonation of methylethylketone (MEK) was investigated using synthesized Mn and Cu-loaded ZSM-5 catalysts. Different catalysts were studied for the removal of MEK and ozone, and 5 wt% Mn/ZSM-5 and 5Mn1CuZSM showed the highest efficiency, respectively. The 5Mn1CuZSM catalyst exhibited superior catalytic reactivity for ozone conversion and CO2 selectivity.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Shengjuan Shao, Zhixing Li, Kechang Gao, Jingwen Zhang, Youzhi Liu, Weizhou Jiao
Summary: This study prepared Cu-Mn mixed oxides catalyst using high gravity-assisted impregnation method, exhibiting excellent catalytic activity for nitrobenzene mineralization and high removal efficiency of total organic carbon. Surface oxygen vacancies and active species played a key role in the mineralization process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Bing Zhou, Quanli Ke, Kai Chen, Meijun Wen, Guokai Cui, Ying Zhou, Zhenyu Gu, Xiaole Weng, Hanfeng Lu
Summary: In this study, Mn/ZSM-5 catalysts with different Mn contents were prepared and their adsorption and catalytic performance in toluene degradation were investigated. The results showed that 4 wt% Mn/ZSM-5 had a toluene conversion rate of 90% at 30°C. The cycling and ozone utilization rate experiments demonstrated that 4 wt% Mn/ZSM-5 maintained good adsorption capacity even after four consecutive adsorption-ozonation cycles.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Engineering, Environmental
Xingtao Zuo, Senlin Ma, Qiyuan Wu, Juan Xiong, Jiajie He, Cong Ma, Zhongbing Chen
Summary: The CeO2 doped high silica ZSM-5 composite (CeO2@HSZSM-5) showed higher specific surface area and better stability, exhibiting excellent catalytic degradation performance of SMX in environmental waters.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Manman Li, Kunlun Yang, Xin Huang, Shiguang Liu, Yifan Jia, Peng Gu, Hengfeng Miao
Summary: In this study, a modified flat microfiltration ceramic membrane (Mn-Fe-CM) was used to catalyze ozone (O-3) for the oxidative degradation of trimethoprim (TMP). The Mn-Fe-CM showed improved catalytic performance for O-3 compared to the conventional CM. The degradation and mineralization efficiencies of TMP were enhanced in the O-3/Mn-Fe-CM system. The proposed degradation mechanism involved hydroxylation, carbonylation, demethoxylation, and deamination. The O-3/Mn-Fe-CM system exhibited strong catalytic ozonation performance and good anti-membrane fouling ability, making it suitable for surface water treatment.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Environmental Sciences
Run Yu Liu, Minh Man Trinh, Hsin Tzu Chuang, Moo Been Chang
Summary: Manganese oxide-based catalysts were synthesized using the Pechini method, and their effectiveness in catalytic destruction of formaldehyde and ozone was evaluated. The addition of FeOx improved the catalyst's performance in both HCHO destruction and ozone decomposition under dry conditions, and it exhibited excellent water vapor resistance. Characterization results showed that FeOx increased the concentrations of Mn3+ and Ce3+, as well as oxygen vacancies and surface lattice oxygen species, enhancing the adsorption and redox properties. The possible mechanisms of ozone catalytic oxidation of HCHO were proposed based on in situ diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) analysis. The ternary mixed-oxide catalyst developed in this study shows great promise for HCHO and ozone decomposition in indoor environments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Run Yu Liu, Minh Man Trinh, Hsin Tzu Chuang, Moo Been Chang
Summary: Manganese-cerium-nickel ternary oxide catalysts (MCN) modified with FeOx showed excellent performance in the destruction of formaldehyde and decomposition of ozone. The addition of FeOx increased the concentration of Mn3+ and Ce3+, oxygen vacancies, and surface lattice oxygen species, improving the adsorption and redox properties of the catalyst.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Jun Wang, Xiaomei Liu, Xiangyu You, Di Wu, Chengbo Ma, Ning Li, Yang Li, Xiaobin Fan, Fengbao Zhang, Wenchao Peng
Summary: Biomass-derived single-atomic (Mn-N-C) materials with hierarchical porous structures are synthesized through a double-anchoring strategy. The introduction of atomic Mn converts the reactive oxidation species (ROSs) into O2 center dot- with longer lifespans, resulting in improved catalytic performance. The activation mechanism of O3 on Mn-N-C catalysts is different from that on nitrogen-doped biomass carbon (BNC).
CHEMISTRY OF MATERIALS
(2023)
Article
Engineering, Environmental
Yang Song, Jianshan Peng, Ziquan Zhao, Wen Qin, Jin Jiang, Jun Ma
Summary: This study investigates the control of N-nitrosodimethylamine (NDMA) and bromate (BrO3(-)) formation during the ozonation process using different catalysts. The results show that the addition of O-3/Al2O3 catalyst can effectively reduce the formation of NDMA and BrO3(-) during ozonation, with better control efficiency observed in real water samples containing Br(-).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Lei Guo, Zhiqiang Xiao, Wenquan Sun, Hao Xu, Yanhua Xu, Huaili Zheng, Yongjun Sun
Summary: In this study, a honeycomb ceramic catalyst Fe/Mn@CH with high catalytic activity was prepared and its optimal working conditions and mechanism in the degradation of Fischer-Tropsch synthesis wastewater were systematically studied.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Shi-Qi Tian, Jing-Yao Qi, Yun-Peng Wang, Yu-Lei Liu, Lu Wang, Jun Ma
Summary: Biochar loaded with manganese and iron showed excellent catalytic ozonation activity, effectively removing atrazine with hydroxyl radicals as the main oxidant. The enhanced adsorption and decomposition of O-3 on the loaded biochar led to improved degradation pathways of atrazine, reducing toxicity of oxidation products significantly. This research indicates the great potential of Mn-loaded and Fe-loaded biochar for heterogeneous catalytic ozonation in water pollution treatment.
Article
Engineering, Chemical
Fuming Miao, Shuai Zhang, Xueliang Sun, Yamin Li, Ruize Shang, Wenli Wu, Weizhou Jiao, Youzhi Liu
Summary: In this study, Mn-CoOX/γ-Al2O3 (MCA) was prepared by impregnation for catalytic ozonation of phenol in a rotating packed bed (RPB). The effects of high gravity factor (β), liquid flow rate (QL), initial solution pH and gaseous ozone concentration (CO3) on the mineralization of phenol were explored. The results showed that MCA-catalyzed ozonation and RPB have a synergistic effect on the degradation and mineralization of phenol, with high removal efficiency achieved under certain conditions. The study also provided insights into the degradation pathways of phenol.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Environmental
Wissem Ben Soltan, Jianbiao Peng, Zhiguo Cao, Zheng Fu, Haijin Liu
Summary: The synthesis of bimetal catalyst Fe-Mn/H-ZSM-5 with high adsorption and low-temperature catalytic characteristics for the decomposition of VOCs was conducted. The zeolite-supported bimetal catalyst exhibited excellent catalytic-oxidation capacity for toluene at low temperatures and high stability. The mechanism of toluene oxidation over the catalyst was proposed and elucidated. This study is of great importance for the design of highly efficient catalysts for the removal of VOCs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jing Zhang, Jingcheng Wei, Zejia Song, Jianwei Song, Yingying Wang, Liwei Pan, Guanghui Ding
Summary: Two catalysts, MCM-41 and ZSM-5/MCM-41, were prepared and their catalytic ozonation performances on pesticide wastewater were investigated. Both catalysts showed significant COD removal rates, with ZSM-5/MCM-41 exhibiting higher activity. The presence of hydroxyl radicals was found to be crucial in the catalytic ozonation process. The catalysts had optimal activity at pH 7 and could be reused multiple times without significant loss of activity, making them promising for the treatment of pesticide wastewater.
JOURNAL OF ENVIRONMENTAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)