Article
Engineering, Chemical
Lingfan Zhang, Sichao Lou, Xiangrui Hao, Hongyan Zhang, Wenqing Zhang, Xin Liu, Jiaofang Huang
Summary: A highly porous composite of zirconium-chitosan with excellent adsorption capacity for Sb(III) and Sb(V) has been successfully developed. The composite possesses an open large-pore structure, providing more adsorption sites for Sb(III) and Sb(V) removal. The experimental results demonstrated the exceptional abilities of the composite in removing both Sb(III) and Sb(V). The removal of Sb(III) involved a dehydration reaction, while the removal of Sb(V) was attributed to electrostatic attraction. This study highlights the potential applications of the composite in water purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Wenlin Zhao, Bozhi Ren, Andrew Hursthouse, Zhenghua Wang
Summary: The study successfully synthesized magnetic nanoadsorption materials with high adsorption capacity and easy separation, characterized by flower-like gamma-Fe2O3 microspheres composed of petal-shaped nanosheets. The material has strong magnetic response for rapid solid-liquid separation under external magnetic field, showing promising potential for treating polluted wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Multidisciplinary
Xiaohuan Liu, Wenwu Cheng, Yangmi Yu, Shengtao Jiang, Yuzhi Xu, Enmin Zong
Summary: A novel adsorbent composite material was proposed, which has a high affinity to phosphate and can be easily separated from aqueous solution. The composite has a high surface area with a large number of mesopores, and exhibits excellent anti-interference capability and reusability. This study demonstrated the potential of the composite material for phosphate removal.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Engineering, Environmental
Chuanqiao Zhang, Mingyang Wu, Kun Wu, Huosheng Li, Gaosheng Zhang
Summary: A novel lanthanum-manganese binary oxide (L1M2BO) adsorbent was synthesized and characterized for the effective removal of both Sb(III) and Sb(V) from water. The L1M2BO showed high adsorption capacity and reusability, making it an attractive option for antimony removal.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Rui Xu, Qian Li, Xiaolong Nan, Yongbin Yang, Bin Xu, Ke Li, Limin Wang, Yuanbo Zhang, Tao Jiang
Summary: The study investigated the efficiency of nano-silica and biogenic iron (oxyhydr)oxides composites in removing antimony from wastewater, showing a high adsorption capacity for both Sb(III) and Sb(V), demonstrating the potential application of the synthetic material in antimony removal.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Nishesh Kumar Gupta, Jiyeol Bae, Kwang Soo Kim
Summary: Iron-based MOFs were synthesized through sonication of organic linkers with freshly prepared iron hydroxide, serving as templates for iron oxide adsorbents after calcination. The adsorbents exhibited significant adsorption capacity for H2S removal, with iron terephthalate MOF-derived iron oxide showing the highest capacity. The spent adsorbent was regenerated by NH4OH to produce ammonium sulfate, providing a novel method to convert waste into value-added products.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Toni Raabe, Heidi Rasser, Stefan Nottelmann, Alexander Gross, Hartmut Krause, Sven Kureti
Summary: This study investigates the mechanisms behind the consecutive adsorption of H2S and O2 on iron oxides/hydroxides, revealing dissociation of H2S at different surface sites and the consumption of the adsorbent. The findings suggest that complete regeneration of the iron substrates is almost impossible due to their substantial degradation, with partial conversion into sulfates and the deposition of sulfur as by-products.
APPLIED SURFACE SCIENCE
(2021)
Article
Environmental Sciences
Xiaolin Han, Congyu Cheng, Wei Zhang, Shuai Li, Qilong Jia, Guangli Xiu
Summary: A novel Fe-Mn binary oxide (FMBO)/bone char composite (FMBC) was synthesized and used to simultaneously adsorb Sb(III) and Cd(II) from aqueous phase. The successful loading of Fe-Mn binary oxide on the bone char surface was confirmed. FMBC exhibited remarkable ability to remove Sb(III) and Cd(II) from aqueous, and the presence of Cd(II) enhanced the adsorption capacity for Sb(III). The mechanisms of adsorption involved redox, electrostatic interaction, surface complexation, ion exchange, and precipitation, with Mn(III) and FeOOH playing key roles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Siyi Ma, Jianghao Ji, Yizhen Mou, Xueyi Shen, Siqin Xu
Summary: In this study, nZVI-modified low-temperature biochar was used to adsorb Sb(III) from water. The adsorption capacity and speed of nZVI-BC were better than those of BC, and the best adsorption effect was observed for 4nZVI-BC. XRD, FTIR, and XPS characterization demonstrated that the adsorption mechanism predominantly included redox reactions, complexation, and electrostatic interactions. The experiment also showed that 4nZVI-BC had good performance in repeated use for Sb(III) adsorption.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Na Li, Shimeng Yu, Jiyuan Fang, Yanfei Yu, Ping Jiang, Shaoyun Pu, Wei Wang
Summary: In this study, the adsorption effect of illite as an adsorbent for graphene oxide (GO) was investigated using adsorption tests and various characterization methods. The results showed that illite had excellent adsorption properties for GO under specific conditions, and the adsorption process was a spontaneous endothermic reaction.
APPLIED CLAY SCIENCE
(2022)
Article
Environmental Sciences
Yu Zou, Bozhi Ren, Zhendong He, Xinping Deng
Summary: The study utilized sepiolite modified with hydroxy-iron and acid-base components to create the HI/ABsep composite, which showed good adsorption performance for removing Sb (III) from contaminated water. The maximum adsorption capacity of HI/ABsep for Sb (III) was found to be 25.67 mg/g. This research provides a potential solution for treating wastewater contaminated with the heavy metal Sb (III).
Review
Environmental Sciences
Mengsi Cheng, Ying Fang, Haipu Li, Zhaoguang Yang
Summary: This review summarizes the classification and performance characteristics of adsorbents used for removing antimony pollutants from water in the past two decades, focusing on the adsorption behavior and mechanisms of various adsorbents for antimony.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Bingyang Liu, Niandong Guo, Zhen Wang, Yu Wang, Xue Hao, Zhilin Yang, Qi Yang
Summary: Fe-Zr-based metal-organic frameworks (FZM) with porous structure and high surface area were synthesized through a facile hydrothermal method. FZM showed a high adsorption capacity for 2,4-D through hydrogen bonds, pi-pi conjugates, and electrostatic attractions. FZM also exhibited good performance in terms of reuse and regeneration.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Kai Wu, Qing Ye, Lanyang Wang, Fanwei Meng, Hongxing Dai
Summary: This study reports on the nanocomposites of graphene oxide-doped stearate-intercalated layered double oxides as a type of CO2 adsorbents at medium temperatures. The doping of graphene oxide improves the stability and CO2 adsorption capacity of the composite material. The nanocomposites show high surface area and basic site amount, allowing for chemical adsorption of CO2 in the form of carbonate. The 6GO LDO-SA nanocomposite exhibits high regeneration efficiency and fast kinetics.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
Yingni Yu, Jing Liu, Yingju Yang, Junyan Ding, Aijia Zhang
Summary: Iron oxide has been studied as an effective sorbent for removing heavy metals, with a particular focus on its cadmium capture capability at high temperatures. Fe atoms were identified as essential active sites for cadmium species adsorption on the Fe2O3 surface, with both physisorption and chemisorption mechanisms playing a role in the process.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Junyi Li, Shuoxun Dong, Yili Wang, Xiaomin Dou, Haotian Hao
JOURNAL OF ENVIRONMENTAL SCIENCES
(2020)
Article
Chemistry, Multidisciplinary
Yanchun Deng, Jun Liu, Yanbin Huang, Mengmeng Ma, Kong Liu, Xiaomin Dou, Zhijie Wang, Shengchun Qu, Zhanguo Wang
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Engineering, Environmental
Sungyup Jung, Sangyoon Lee, Xiaomin Dou, Eilhann E. Kwon
Summary: Wearing disposable face masks to protect against COVID-19 has become common during the pandemic, but the massive generation of contaminated masks is causing environmental concerns due to the release of toxic chemicals during disposal processes. A CO2-assisted thermo-chemical process is suggested as an environmentally friendly disposal method, simultaneously producing valuable fuels from the masks. The study focused on determining the major chemical constituents of disposable masks and employing pyrolysis to produce syngas and C1-2 hydrocarbons, showcasing a potential for environmentally benign removal of COVID-19 plastic waste.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Shihua Chen, Yuting Yang, Min Zheng, Xiang Cheng, Kangning Xu, Xiaomin Dou
ENVIRONMENTAL RESEARCH
(2020)
Article
Environmental Sciences
Qianqian Xie, Xiao Yang, Kangning Xu, Zheng Chen, Binoy Sarkar, Xiaomin Dou
ENVIRONMENTAL RESEARCH
(2020)
Article
Materials Science, Paper & Wood
Ya Lu, Jingquan Han, Qinqin Ding, Yiying Yue, Changlei Xia, Shengbo Ge, Quyet Van Le, Xiaomin Dou, Christian Sonne, Su Shiung Lam
Summary: A novel nanocomposite hydrogel has been developed by introducing TOCN to enhance mechanical properties and self-recovery rate, and utilizing coordination with Fe3+ for remarkable shape memory properties. The hydrogel exhibits excellent energy dissipation capability, viscoelasticity, and self-recovery rate, with particularly better tensile performance in the 3% TOCN/PAAM-Fe3+ hydrogel.
Article
Engineering, Environmental
Seung-Ho Ha, Ki-Hyun Kim, Sherif A. Younis, Xiaomin Dou
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Physical
Yiping Wang, Pengwei Yan, Xiaomin Dou, Chao Liu, Yuting Zhang, Zilong Song, Zhonglin Chen, Bingbing Xu, Fei Qi
Summary: This study found that well-distributed CuBi2O4 microspheres with active sites and hydroxyl groups on the surface can effectively activate PMS to degrade BP-4. The degradation mechanism of BP-4 was proposed through theoretical calculations and intermediates identification, showing that radical addition reaction is the main pathway for BP-4 oxidation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Chemical
Botao Liu, Sherif A. Younis, Jechan Lee, Jan E. Szulejko, Xiaomin Dou, Ki-Hyun Kim
Summary: This study found that moisture has a significant impact on the adsorption of gaseous benzene by microporous activated carbon, especially at lower benzene levels. Temperature plays a more dominant role in affecting AC performance compared to humidity. The commercial AC product demonstrates excellent performance under different environmental conditions, making it suitable for purifying the atmosphere from gaseous aromatic pollutants like benzene.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Xingyu Chen, Tianxin Li, Xiaomin Dou, Linglong Meng, Shuiyang Xu
Summary: Flue gas desulfurization (FGD) wastewater treatment is of increasing interest due to the release of stringent standards for pollution emissions in the energy industry and growing concerns about water scarcity. This study developed a treatment system combining reverse osmosis (RO) membrane and ultrasonic cleaning, which improved membrane fouling cleaning efficiency and extended membrane lifespan. The system's effluent met the standard for desulfurization wastewater treatment.
Article
Chemistry, Multidisciplinary
Shuhan Sun, Shiling Li, Yibing Hao, Xiao Yang, Xiaomin Dou
Summary: g/C3N4-ZnO composite catalysts were successfully synthesized through surface hybridization, with excellent photocatalytic performance. The heterojunctions promoted the separation of photogenerated carriers, accelerating the degradation of AMX. The catalyst exhibited good recycle and reuse ability, and the toxicity of transformation products was significantly reduced.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Lagnamayee Mohapatra, Yiu Fai Tsang, Xiaomin Dou, Kitae Baek
Summary: A novel visible-active LDH@SiO2 core-shell photocatalyst was fabricated and its performance in oxidizing As(III) and reducing Cr(VI) was studied. The LDH@SiO2 exhibited efficient charge carrier generation, transport, and separation, leading to significantly enhanced catalytic activity when both As(III) and Cr(VI) coexisted.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Chunmei Wang, Wei Li, Xueqin Zhao, Zhen Chen, Yonghuan Li, Guichang Wang, Xiaomin Dou
Summary: Transition aluminas (TAs) are alumina polymorphs used for water remediation. This study investigates the structure-binding activity of pollutants and phosphate adsorption on TAs. It is found that the structure disorders of TAs affect adsorption, but do not follow the expected trend. The fraction of amorphous content is identified as the key feature for phosphate adsorption on TAs. Strategic measures for producing promising alumina adsorbents are suggested. Overall, this work provides insights into the chemistry of phosphate on TAs and offers guidance for the development of alumina remediation materials.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Chunmei Wang, Qianqian Xie, Xiaomin Dou, Lanxi Zhang, Xiao Yang
Summary: Carbon-based solid acids are effective catalysts for pollutant mitigation in wastewater. This study investigated the use of commercially available carbons, such as biochar, activated carbon, and graphite, as solid-acid catalysts for tylosin mitigation. The results showed that graphite-originated solid acids performed the best, while biochar-originated solid acids showed good performance regardless of preprocessing treatments. The study provides valuable insights into tuning carbon surface chemistry to enhance sulfonation and improve the catalytic degradation of tylosin.
Article
Environmental Sciences
Shiling Li, Shuhan Sun, Fei Qi, Xiaomin Dou
Summary: Antibiotic production wastewater often contains high concentrations of antibiotic residues, which can negatively impact biological wastewater treatment units and promote the growth of antibiotic-resistant bacteria. This study developed and utilized polymer-based solid acids to effectively mitigate the concentration of tylosin in wastewater. The solid acids exhibited good hydrolytic efficiency and could be reused multiple times after regeneration.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
