Article
Engineering, Environmental
Simeng Zhu, Pengyu Xiao, Xue Wang, Yang Liu, Xianliang Yi, Hao Zhou
Summary: This study investigates the use of photochemically synthesized manganese oxides as an activator for peroxymonosulfate (PMS) in wastewater treatment. The results show that manganese oxides can effectively remove acid organic pollutants and exhibit anti-interference capacity.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Yuheng Huang, Xiaoliu Huangfu, Chengxue Ma, Ziqiang Liu
Summary: Microorganisms can oxidize Mn(II) to biogenic Mn oxides through enzyme-mediated and non-enzyme-mediated processes, which are considered as the source and sink of heavy metals. Understanding the interactions between Mn(II) oxidizing microorganisms and heavy metals is important for studying microbial-mediated self-purification of water bodies.
Article
Nanoscience & Nanotechnology
Lulu Zhu, Baiyu Zhang, Qian Su, Runlu Liu, Jingyi Lin, Hua Wang, Shenmin Zhu, Yao Li
Summary: Introduction of oxygen vacancies can enhance the photocatalytic activity of BiVO4-based heterojunctions and promote the separation of charge carriers.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Applied
Long Zhang, Yi Yang, Yuanzhi Li, Jichun Wu, Shaowen Wu, Xin Tan, Qianqian Hu
Summary: CeO2-CeOMS-2 exhibits high photothermocatalytic activity and excellent durability for ethyl acetate removal. The synergy between CeO2 nanoparticles and Ce-doped OMS-2 contributes to the superior catalytic performance of CeO2-CeOMS-2.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Sinem Ozcan, Duygu Yildirim, Hasan Ozgur Cildiroglu, Mustafa Polat, Kadriye Ozlem Hamaloglu, Rukiye Babacan Tosun, Cigdem Kip, Ali Tuncel
Summary: Monodisperse-porous Mn5O8 microspheres were used as a heterogeneous catalyst for the fast degradation of organic pollutants via peroxymonosulfate activation. The presence of multiple oxidation states on the microsphere surface was confirmed. The catalyst showed high stability and short removal periods for the selected pollutants, with efficient degradation achieved in a wide pH range.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Environmental
Shuang Zhang, Baohui Li, Yi Chen, Mengqiang Zhu, Joel A. Pedersen, Baohua Gu, Zimeng Wang, Hui Li, Jinling Liu, Xin-Quan Zhou, Yun-Yun Hao, Hong Jiang, Fan Liu, Yu-Rong Liu, Hui Yin
Summary: Methylmercury (MeHg) is a potent neurotoxin with adverse health impacts on humans. This research demonstrates that trivalent manganese (Mn(III)) can degrade MeHg in natural environments, suggesting potential applications for remediating heavily polluted soils and engineered systems containing MeHg.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Dongning Wei, Jing Liu, Zirui Luo, Xiande Xie
Summary: The oxidation rates and adsorption capacity of antimonite (Sb (III)) on six different structures of manganese oxides (MnxOy) were investigated. Higher reduction potential and specific surface area favored faster Sb(III) oxidation, while Mn(III) and oxygen vacancies exhibited a synergistic effect on Sb(III) oxidation. The results provide mechanistic insight into the fate of Sb(III) in Mn-rich environments.
Article
Chemistry, Physical
Diego Alvarez-Bustos, Felipe Sanchez-Minero, Victor Santes, Issis Claudette Romero-Ibarra, Jose Antonio de los Reyes Heredia, Reyna Rios-Escobedo, Francisco Tzompantzi-Morales, Carlos Eduardo Santolalla-Vargas
Summary: The study evaluated the photocatalytic activity of FeS-2Cl/TiO2 catalyst on visible-light degradation of phenol, showing significantly improved degradation compared to unmodified TiO2.
Article
Biotechnology & Applied Microbiology
Songyan Qin, Xiaolong Liu, Wujuan Lv, Jie Hu, Xin Huang, Lixin Zhao
Summary: This study investigates the degradation of alpha-naphthol using magnetic biogenic manganese oxides (M-BMnOx) prepared with Pseudomonas putida strain QSY-1 and magnetic nanoparticles (MNPs). The study systematically examines the effects of pH, temperature, and initial alpha-naphthol concentration. Results show that the degradation rate of M-BMnOx is faster than that of biogenic manganese oxides (BMnOx), and the removal rate reaches 100% after four cycles. The analysis also reveals that M-BMnOx have superior removal efficiency compared to BMnOx, making it a promising technique for degrading high concentrations of alpha-naphthol wastewater.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Huilin Li, Qiang Guo, Yongli Li, Mingbo Fu, Dengchao Tian, Tao Qi
Summary: Efficient, stable, and inexpensive photocatalysts were obtained by synthesizing CeO2@ expanded graphite composites. The composites showed high pollutant removal efficiency, reaction rate, stability, and suitability for water pollution treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Mona Magdy, Mohamed Gar Alalm, Hisham Kh El-Etriby
Summary: This study evaluated and compared the environmental performance of five different technologies for phenolic wastewater treatment. The solar photo-Fenton process was identified as the most environmentally friendly technology, while the electro-Fenton process had the highest impacts. Economic analysis showed that the adsorption process was the most affordable, while electro-Fenton was the costliest process.
JOURNAL OF CLEANER PRODUCTION
(2021)
Review
Environmental Sciences
Basma Al-Najar, Ayman H. Kamel, Hanan Albuflasa, Nicholas P. Hankins
Summary: This article reviews the application of spinel ferrite nanomaterials (SFNs) in the removal of chlorophenols (CPs). It highlights the unique crystal structure, optical and magnetic properties of SFNs and their potential in CP removal. The article also discusses the structure and properties of SFN, as well as the factors that affect its efficiency in CP removal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Le Zhang, Feng Huo, Anqi Wang, Shaohua Chai, Jian Guan, Guijun Fan, Wuxinchen Yang, Guojun Ma, Ning Han, Yunfa Chen
Summary: Currently, the active sites of cobalt (Co) cations in different coordination structures remain elusive and challenging, despite the potential of Co-based oxides in catalytic ozone elimination. In this study, controllable synthesis of different Co-based oxides were achieved and their valences and coordinations were verified. The ozone decomposition performances revealed that Co-Oh(3+) and Co-Oh(2+) in octahedral coordination were superior to Co-Td(2+) in tetrahedral coordination. Notably, MgCo with octahedral coordination exhibited the highest decomposition efficiency and remained stable after long-term running. The high activity of MgCo can be attributed to the d-orbital splitting, facilitating electron transfer in ozone decomposition reactions.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Xueqin Wang, Ying Liu, Helong Xu, Man Dai, Peng Qiao, Wenyi Wang, Yanxiu Liu, Hua Song
Summary: Surface-decorated three-dimensional dendritic fibrous nanosilica (DFNS)/TiO2 materials were synthesized and studied for their potential applications in degrading organic pollutants. The DFNS/TiO2 catalysts exhibited unique fibrous morphologies, high specific surface areas, and excellent catalytic properties, with a first-order degradation rate constant of 0.0229 min(-1).
APPLIED SURFACE SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Rosendo Lopez Gonzalez, Orbelin de la Fuente, Ruth Lezama Garcia, Melina del Carmen Uribe Lopez, Patricia Quintana Owen, Maria Carmen Hidalgo Lopez, Mayra Angelica Alvarez Lemus
Summary: Phenol and its derivatives pose a serious environmental concern, but zinc oxide-based photocatalysts show promise in addressing this issue. ZnO nanoparticles, synthesized through precipitation and calcination methods, exhibited good photocatalytic activity under visible light. The study also found that the generation of hydroxyl radicals decreased with the reuse of ZnO, likely due to the presence of adsorbed by-products on its surface.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Review
Soil Science
Yupeng Yan, Biao Wan, Rui Jiang, Xiaoming Wang, Hui Wang, Shuai Lan, Qin Zhang, Xionghan Feng
Summary: This paper reviews the interfacial behavior of organic phosphorus (OP) on natural minerals and its effects on the transport, transformation, and bioavailability of phosphorus in the environment. The sorption mechanisms of OP on minerals are mainly surface complexation and precipitation, influenced by factors such as mineral identity, OP molecular weight, and reaction conditions. The interaction between OP and minerals also affects the catalytic hydrolysis of OP and the stability of minerals.
Article
Environmental Sciences
Qin Zhang, Wei Qin, Wenhong Cao, Jian Jiao, Zhe Yin, Haichao Xu
Summary: In response to the severe soil erosion in the North China Mollisols, it has been found that different soil and water conservation measures have significant effects in reducing soil erosion. No-tillage, terraced fields, and contour ridge tillage are effective measures, which provide a basis for the rational allocation of soil and water conservation measures and promote the scientific utilization of North China Mollisols resources.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2023)
Article
Environmental Sciences
Shun Liu, Zhaoyang Liu, Wenfeng Tan, Andrew C. Johnson, Andrew J. Sweetman, Xiaoyan Sun, Yu Liu, Chang Chen, Hao Guo, Hanyu Liu, Xiang Wan, Limei Zhang
Summary: This study investigated the source tracing and transport of PFASs from factories to agricultural fields in a fluorochemical industrial region of China. It also explored the bioaccumulation specificities and prediction of these chemicals in different vegetables, and conducted a comprehensive risk assessment considering precursor degradation. The results showed that PFASs in agricultural soils mainly came from fluorochemical manufacturing and metal processing, and alarming levels of PFASs were found in vegetables. PFASs with short carbon chain or carboxylic acid group exhibited higher transport potentials and bioaccumulation factors, and the number of Casparian strips and protein content in vegetables affected their bioaccumulation factors.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Biodiversity Conservation
Ji Liu, Tianyi Qiu, Josep Penuelas, Jordi Sardans, Wenfeng Tan, Xiaomeng Wei, Yongxing Cui, Qingliang Cui, Chuanfa Wu, Lanfa Liu, Baitao Zhou, Haoran He, Linchuan Fang
Summary: This study found that crop residue inputs can increase soil organic carbon, nitrogen, and phosphorus contents, helping to alleviate soil carbon limitation and maintain balanced soil stoichiometry. The increase in soil organic carbon and carbon-to-nitrogen (phosphorus) ratio reached saturation after around 13-16 years, while the increase in grain yield stopped. A predictive model was proposed to evaluate the potential for crop residue improvement under different soil conditions and nitrogen input levels.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Environmental Sciences
Meng Kou, Jingtao Hou, Chang Chen, Juan Xiong, Renhao Wei, Mingxia Wang, Wenfeng Tan
Summary: This study evaluated the single and combined effects of cadmium (Cd) and lead (Pb) on rice root elongation at various concentrations. The results showed that there was an interaction between Cd and Pb, which weakened their toxicity. Cd had a more significant inhibitory effect on Pb toxicity. The study also introduced a systematic method for assessing heavy metal interaction at different concentration levels, which may help formulate control standards for heavy metal combined pollution in agricultural land.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Yupeng Yan, Xionghan Feng, Xiaoming Wang, Wei Li, Shuai Lan, Lirong Zheng, Qin Zhang, Biao Wan
Summary: Naturally occurring oxides can react with zinc oxide nanoparticles, changing their transformation and toxicity to ecological receptors. The interactions of ZnO NPs with phosphorus ligands pre-sorbed gamma-alumina were investigated, and it was found that the pre-sorption of ligands can greatly influence the solubility, stability, transformation, and fate of ZnO NPs. As the concentration of ZnO NPs increases, surface Zn (II) complexes gradually transform into zinc phytate and Zn-Al layered double hydroxide precipitates. The pre-sorption of orthophosphate also inhibits ZnO NP transformation into Zn-Al LDH precipitates on gamma-alumina.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Yi Wang, Shiwei Lin, Lihu Liu, Feng Wang, Xiong Yang, Guohong Qiu
Summary: In this study, biochar was successfully incorporated with birnessite to synthesize composites (BC-Mn) for effective electrochemical removal of cadmium (Cd(II)) from water. The electrosorption capacity of BC-Mn for Cd(II) increased with increasing birnessite content and reached equilibrium at a Mn content of 20% (BC-Mn20). The Cd(II) adsorption capacity of BC-Mn20 reached a maximum at 1.2 V and pH 5.0, with a value of 104.5 mg g(-1).
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
Xiong Yang, Lihu Liu, Yi Wang, Tao Lu, Ziwei Wang, Guohong Qiu
Summary: The reagent-free electrochemical precipitation method proposed in this study effectively removes mixed heavy metal ions extracted from soils by citrate. After 12 hours of electrolysis at 26 mA cm-2, the concentrations of toxic heavy metals were reduced by over 99.4%. The method exhibited high stability and decreased the concentrations of As, Zn, Pb, and Cd in the leachate to below the limits of industrial wastewater discharge.
ENVIRONMENTAL POLLUTION
(2023)
Article
Ecology
Ji Liu, Linchuan Fang, Tianyi Qiu, Haijian Bing, Yongxing Cui, Jordi Sardans, Enzai Du, Ji Chen, Wenfeng Tan, Manuel Delgado-Baquerizo, Guiyao Zhou, Qingliang Cui, Josep Penuelas
Summary: This study investigated the patterns of plant-microbial N/P limitation in forests across China and found significant divergence between the two. The N/P limitation was disconnected in 42.6% of plant-microbial communities, with only 17.7% of N and 39.7% of P limitations consistent. The divergence was more evident at mid-latitudes, where plants were mainly N limited and microbes were mainly P limited. The findings were consistent with ecological stoichiometry and highlighted the importance of soil chemistry in driving the divergence.
FUNCTIONAL ECOLOGY
(2023)
Article
Soil Science
Jun Xie, Feng Liang, Zengbing Liu, Guanjie Jiang, Qin Zhang
Summary: The acidification characteristics of red paddy soil derived from different parent materials in Jiangxi Province have not been clear. Therefore, this study investigated the acidification characteristics and the impact of soil factors on red paddy soils derived from Quaternary red earth, plate shale, red sand stone, and granite. The results showed that there was significant acidification in the red paddy soil in 2018 compared to the 1980s, with higher acidification in soils derived from red sand stone and granite. The soil physicochemical and mineralogical properties influenced the acidification process.
Article
Soil Science
Haiyang Liu, Shengnan Zhang, Wei Xu, Hongen Liu, Jiangye Li, Jizheng He, Wenfeng Tan
Summary: The discovery of complete ammonia oxidizers has revolutionized our understanding of two-step nitrification. Previous studies have suggested that these organisms may outcompete canonical ammonia oxidizers under ammonia-limited conditions. However, there is currently no convincing evidence linking their activity to nitrification in acidic soils.
BIOLOGY AND FERTILITY OF SOILS
(2023)
Article
Green & Sustainable Science & Technology
Taihui Zheng, Huiming Zeng, Xinping Zhang, Jie Luo, Xiulong Chen, Xiaomin Zhao, Qin Zhang
Summary: Adding a blended amendment composed of coal fly ash, compost, and biochar can improve soil physicochemical properties and microbial communities in mining-disturbed soils restored with legumes. The amendment increases soil organic matter, nutrient availability, and soil pH, and enhances the abundance of gram-negative bacteria and arbuscular mycorrhizal fungi.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Multidisciplinary
Mimi Luo, Guanjie Jiang, Min Yu, Yupeng Yan, Zhangjie Qin, Yang Li, Qin Zhang
Summary: The number of photogenerated carriers is a key factor influencing photocatalytic activity, and constructing S-scheme heterojunctions is an effective method to enhance carrier migration. In this study, Au nanoparticles-supported crystallized heptazine/triazine-based carbon nitride S-scheme heterojunction photocatalysts were prepared. The introduction of Au nanoparticles led to the transformation of electron transfer path from Type II-scheme to S-scheme, resulting in improved photocatalytic hydrogen evolution performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Haoyu Yin, Lihu Liu, Jinxing Ma, Changyong Zhang, Guohong Qiu
Summary: This study constructed an asymmetric flow-electrode electrochemical separation (AFES) system, which efficiently removes As(III) from groundwater. The system achieves this through self-alkalization and the adsorption of H+ on the cathode, resulting in the removal of As(V) predominantly. The system shows stability and superior removal performance.
Article
Materials Science, Multidisciplinary
Tong Hu, Guanjie Jiang, Yupeng Yan, Shuai Lan, Junjie Xie, Qin Zhang, Yang Li
Summary: Photocatalytic nitrogen fixation is a promising approach for ammonia synthesis, but the preparation of efficient catalysts and the understanding of reaction pathway and mechanism remain challenging. In this study, single-atom Fe-porous g-C3N4 (FPx) samples were prepared via a one-step annealing technique, and FPx exhibited a porous structure and single-atom Fe, leading to enhanced photocatalytic activity due to the exposure of more active centers and the change of adsorption mode of N2. FPx achieved a remarkable photocatalytic activity of 62.42 μmol h-1 g-1 without any sacrificial agent or cocatalyst, which is over five times higher than that of bulk g-C3N4. This work provides new insights into photocatalytic nitrogen fixation and offers a strategy for efficient N2 photoreduction by constructing single-atom photocatalysts.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
