Article
Environmental Sciences
Sobhan Ghanbari, Ali Fatehizadeh, Afshin Ebrahimi, Bijan Bina, Ensiyeh Taheri, Hafiz M. N. Iqbal
Summary: In this study, natural manganese-containing mineral (NMM) was used as a catalyst for heterogeneous catalytic ozonation. The catalytic activity of NMM and H-NMM, which were modified by hydro-thermal aging process, was evaluated for the degradation of 4-chlorophenol (4-CP). The synergistic effect of NMM and H-NMM in the ozonation process showed promising potential for mitigating environmentally related pollutants.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yilin Dong, Jing Sun, Xiaoling Ma, Wenlong Wang, Zhanlong Song, Xiqiang Zhao, Yanpeng Mao, Wenxiang Li
Summary: MnOx has received widespread attention in low-temperature catalytic oxidation of VOCs, but the synergy effect of MnOx and support on the VOCs catalytic ozonation has been rarely studied. In this study, different MnOx/X materials were synthesized and it was found that the support greatly affects the catalytic oxidation activity. MnOx/MCM-41 exhibited the best catalytic activity, completely degrading O3 and VOCs at room temperature. Moreover, MnOx/MCM-41 showed strong water resistance and stability. The supply of loading sites and the improvement of interfacial electron transfer are the manifestations of the synergy between the support and MnOx in promoting the catalytic ozonation of VOCs.
Article
Engineering, Chemical
Wentao Su, Yujie Li, Xiaping Hong, Kun-Yi Andrew Lin, Shaoping Tong
Summary: This study successfully improved the efficiency of DMAC ozonation by preparing the magnetic core-shell catalyst Fe3O4@SiO2@MgO, achieving efficient removal of DMAC. The composite material showed good stability and recoverability, making it a potential practical catalyst.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Environmental Sciences
Jian Pan, Mengqian Qian, Yu Li, Haiqiang Wang, Baohong Guan
Summary: Metal-free catalysts play a crucial role in water treatment by effectively removing harmful quinoline derivatives and reducing chemical oxygen demand. This study demonstrates the use of fluorinated ceramic honeycomb as a catalyst for stable catalytic ozonation, generating free reactive oxygen species and efficiently degrading the target compound.
Article
Environmental Sciences
Jian Pan, Mengqian Qian, Yu Li, Haiqiang Wang, Baohong Guan
Summary: A metal-free catalyst, fluorinated ceramic honeycomb, was prepared to catalyze the ozonation of 4-methylquinoline with high efficiency in degrading and removing COD. The catalyst surface contains abundant active acid sites, enhancing the ozone decomposition to generate reactive oxygen species, with free hydroxyl radicals playing a major role in the degradation and COD removal of 4-Meq.
Article
Engineering, Chemical
Chen-Yan Hu, Ye-Ye Zhu, Bin Xu, Tian-Yang Zhang, Yi-Li Lin, Cun Xiong, Qiang-Bing Wang, Dan-Dan Huang, Ling Xu
Summary: This study explored the degradation of iohexol, an iodine X-ray contrast media, under heterogeneous ozone-catalyzed oxidation with the addition of Fe3O4 and 1-hydroxybenzotriazole (HBT). Results showed that increasing the dosages of Fe3O4 catalyst and ozone, as well as solution pH, enhanced the degradation of iohexol. Low concentrations of humic acid (HA) and HBT promoted iohexol degradation, while high concentrations inhibited it. The Fe3O4 /O-3/HBT process had a higher degradation rate constant compared to the Fe3O4 /O-3 and O3 processes. Singlet oxygen, hydroxyl radical, and superoxide radical were identified in the Fe3O4 /O-3/HBT process. The presence of HBT further enhanced the heterogeneous ozone-catalyzed process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Qian Wang, Can He, Yue Shan, Zhongguo Zhang, Jiuyi Li
Summary: The aim of this study was to investigate the degradation efficiency and mechanism of atenolol (ATL) using Al2O3 supported manganese-cerium mixed oxides (Mn-Ce@Al2O3) as a catalyst for catalytic ozonation. Mn-Ce@Al2O3 with 0.2 wt% manganese and 0.2 wt% cerium showed excellent catalytic performance, leading to complete ATL degradation and 63% mineralization. The catalyst had a high specific surface area due to the presence of Mn-Ce solid solution on the surface, which promoted the formation of oxygen vacancies and electron transfer. O-2(center dot-) and center dot OH were identified as the main active radicals for ATL degradation and mineralization.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Min Lei, Qian Gao, Kemeng Zhou, Parikshit Gogoi, Jing Liu, Jiabao Wang, Hainong Song, Shuangfei Wang, Xinliang Liu
Summary: A catalytic system using PMA and H2O2 was developed for degrading 4-CP, resulting in complete conversion of 4-CP into other AOX and CO2/H2O, with PMA promoting free radical formation and showing exceptional efficiency in 4-CP degradation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Yu Feng, Yanan Wang, Zijin Pang, Yunqing Zhuang, Yu-Shi He, Weimin Zhang, Jinglin Mu, Xin Huang
Summary: This study synthesized a three-dimensional carbon nanotube catalyst containing nitrogen and oxygen heteroatoms for the electro-Fenton process, which effectively removed 4-chlorophenol. The optimized electrode showed excellent degradation capability and stability across a wide pH range. This research provides a promising green technology for metal-free environmental remediation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Guanjie Wang, Zhiping Ye, Liang Zhao, Yang Liu, Jiayu Ji, Jiade Wang
Summary: In this study, amorphous catalysts were used to investigate the catalytic ozonation system for toluene, revealing the degradation mechanism and influencing factors. The Cu0.2MnOx catalyst showed the highest toluene oxidation rate and excellent stability. Suitable temperature and O-3 concentration effectively enhanced the number of reactive oxygen species. The catalytic ozonation pathway of toluene mainly involved benzoic acid, benzene, maleic anhydride, short-chain carbon species, CO2, and H2O.
Article
Environmental Sciences
Hariprasad Pokkiladathu, Salman Farissi, Anbazhagi Sakkarai, Muthukumar Muthuchamy
Summary: Rampant water pollution events and rising water demand indicate an impending water crisis. Conventional wastewater treatment systems are unable to effectively remove contaminants, calling for new and efficient technologies. This study used ozonation and an activated carbon impregnated nanocomposite-bimetallic catalyst to achieve higher COD removal rates.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Mengxin Wang, Donglin Liu, Zhenmin Xu, Qiwei Tian, Wei Chai, Lu An
Summary: In this study, near infrared (NIR) light absorbance and photothermal conversion were used to activate H2O2 for the elimination of 4-chlorophenol (4-CP) from water. The photothermal effects of CuS nanosheets significantly enhanced the yield of the Fenton-like reaction, resulting in efficient pollutant degradation. The CuS nanosheets showed good stability and broad pH range applicability. These findings highlight the potential of photothermal-enhanced Fenton-like effect for environmental remediation and solar energy utilization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Chemical
Haleh Mohebali, Gholamreza Moussavi, Meghdad Karimi, Stefanos Giannakis
Summary: We investigated the catalytic activity of magnetic CeZrUiO-66 Metal-Organic Framework (MOF) composites (Fe3O4/CeZrUiO-66) for ciprofloxacin degradation by catalytic ozonation. The composite with a 30:70 ratio of Fe3O4:CeZrUiO-66 exhibited the highest efficiency, achieving a 97% elimination yield within 30 minutes. The catalytic ozonation process (COP) showed higher CIP mineralization compared to the single ozonation process (SOP), and OH radicals were identified as the main reactive species.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Meng Qi, Zhirui Cui
Summary: This study prepared a new type of gamma-Al2O3 supported metal catalyst using gamma-Al2O3 as both catalyst and catalyst support, forming a new catalytic ozonation system with ozone. Nitrobenzene, a difficult-to-oxidize and biodegrade toxic organic pollutant, and nitrobenzene and aniline, common organic pollutants, were used as target materials. The efficiency, catalytic mechanism, and influencing factors of the catalytic ozonation system for removing organic pollutants in water were thoroughly studied. The preparation process of the Mn Fe supported gamma-Al2O3 catalyst using gamma-Al2O3 as the carrier was found to be simple, with high hardness and good wear resistance. The system showed stable organic matter removal effect and could operate long-term without the need for additional chemicals, saving operational costs.
DESALINATION AND WATER TREATMENT
(2022)
Article
Environmental Sciences
Huihui Gao, Xiaoyu Han, Rong Wang, Keke Zhu, Runping Han
Summary: In this research, HCNTs/Fe3O4 composites were constructed by loading magnetic Fe3O4 particles onto hydroxylated multi-walled carbon nanotubes (MWCNTs), showing excellent adsorption capacity and catalytic ability for BPA and p-CP. The adsorption capacity and catalytic degradation potential were evaluated, and the results showed high efficiency in removing BPA and p-CP from solution.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Weilong Song, Zhipeng Li, Feng Liu, Yi Ding, Peishi Qi, Hong You, Chao Jin
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Agricultural Engineering
Zhipeng Li, Weilong Song, Feng Liu, Yi Ding, Hong You, Hengjun Liu, Peishi Qi, Chao Jin
BIORESOURCE TECHNOLOGY
(2018)
Article
Engineering, Environmental
Weilong Song, Zhipeng Li, Yi Ding, Feng Liu, Hong You, Peishi Qi, Fang Wang, Yizhu Li, Chao Jin
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Green & Sustainable Science & Technology
Jianhua Qu, Xianlin Meng, Xingying Jiang, Hong You, Peng Wang, Xiuqing Ye
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Toxicology
Shutao Wang, Chuan Wu, Zhisheng Liu, Hong You
TOXICOLOGY LETTERS
(2018)
Article
Engineering, Environmental
Zhipeng Li, Feng Liu, Hong You, Yi Ding, Jie Yao, Chao Jin
WATER SCIENCE AND TECHNOLOGY
(2018)
Article
Metallurgy & Metallurgical Engineering
Jia Yu-hong, Qi Zhen-lian, You Hong
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2018)
Article
Chemistry, Applied
Li na Zhao, Yu Hong Jia, Hong You, Shu tao Wang, Liang Fu
Article
Environmental Sciences
Zhipeng Li, Feng Liu, Yi Ding, Fei Wang, Hong You, Chao Jin
Article
Chemistry, Multidisciplinary
Yuhong Jia, Dandan Zhang, Hong You, Weiguo Li, Kun Jiang
JOURNAL OF NANOPARTICLE RESEARCH
(2019)
Article
Engineering, Environmental
Jianhua Qu, Xianlin Meng, Ying Zhang, Qingjuan Meng, Yue Tao, Qi Hu, Xingying Jiang, Hong You, Christine A. Shoemaker
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Article
Environmental Sciences
Qihui Xu, Zhipeng Li, Hong You, Shutao Wang, Haoyang Li
Summary: In this study, the eco-friendly composite materials Fe-b/HCs were used as activators in water treatment, showing significant improvement in performance after specific treatment.
Article
Environmental Sciences
Jing Zhu, Hong You, How Yong Ng, Zhipeng Li, Binghan Xie, Hongying Chen, Yi Ding, Haili Tan, Feng Liu, Chunpeng Zhang
Summary: This study investigated the impacts of bio-carriers on membrane fouling in membrane bioreactors (MBRs) for high saline mariculture wastewater treatment. The results showed that bio-carriers effectively improved the characteristics of cake layer, reduced the adhesion of proteins and humic acid-like materials on membrane surface, and shifted the precise composition of cake layers.
Article
Green & Sustainable Science & Technology
Qihui Xu, Zhipeng Li, Feng Liu, Hong You, Binghan Xie
Summary: Chlorite (ClO2-) is a by-product of water treatment using chlorine dioxide (ClO2) and can be activated by iron species (Fe-b) for selective oxidative treatment of organic contaminants. This study discovered the mechanisms behind this activation process and proposed a unified coordination catalysis mechanism. The findings provide a novel strategy for water treatment and waste disposal.
ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY
(2023)
Article
Engineering, Environmental
Zhipeng Li, Feng Liu, Bo Zhang, Yi Ding, Hong You, Chao Jin
WATER SCIENCE AND TECHNOLOGY
(2018)