Review
Environmental Sciences
Adeleh Aftabtalab, Joerg Rinklebe, Sabry M. Shaheen, Nabeel Khan Niazi, Eduardo Moreno-Jimenez, Joerg Schaller, Klaus-Holger Knorr
Summary: High concentrations of arsenic in groundwater are primarily influenced by arsenic-rich sediments underground. Various processes drive the mobilization of arsenic in aquatic ecosystems, with dissolved arsenic exhibiting high affinity for dissolved organic matter. Understanding the complex interactions and biogeochemical cycling of arsenic, dissolved organic matter, and iron oxides is essential for preventing arsenic contamination spread in aquatic resources.
Article
Chemistry, Multidisciplinary
Sinwoo Kang, Changbin Im, Ioannis Spanos, Kahyun Ham, Ahyoun Lim, Timo Jacob, Robert Schloegl, Jaeyoung Lee
Summary: In this study, the degradation of NiFe-based oxides in Fe-purified KOH was investigated, and a solution was proposed. Loading TPP on the catalyst/electrolyte interface can alleviate the destabilization of NiFe (oxy)hydroxide and prolong the catalyst's lifetime.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Ching Thian Moi, Sourav Bhowmick, Mohammad Qureshi
Summary: This study successfully fabricated a bifunctional electrocatalyst with high operational stability for efficient generation of hydrogen and oxygen. By designing the morphology and optimizing the composition, it achieved overpotentials of 53 mV for HER and 227 mV for OER under 10 mA/cm(2) current density in 1 M KOH.
ACS APPLIED MATERIALS & INTERFACES
(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
Weilin Yang, Wu Xiang, Zhengyu Bao, Chunlei Huang, Ming Ma, Xinzhe Lu, Lingyang Yao, Yong Wang
Summary: This study evaluates the contribution of iron-organic matter associations to the phosphorus sorption capacity of peatland. It finds that the associations of iron and organic matter contribute more to the phosphorus retention ability of peat soils compared to inorganic iron minerals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Hanxiao Liao, Tao Luo, Pengfei Tan, Kejun Chen, Lili Lu, Yong Liu, Min Liu, Jun Pan
Summary: This study developed a sulfate ion modulation strategy to enhance the oxygen evolution reaction activity of NiFe (oxy)hydroxide by accelerating the electrochemical reconstruction of pre-catalyst and stabilizing the reaction intermediate, leading to a significantly improved OER performance.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Energy & Fuels
Lawal Sirajo, Muhammad Abbas Ahmad Zaini
Summary: This study aimed to evaluate the removal of orthophosphate from water using iron-loaded adsorbents derived from coconut shells. The results showed that IC-CSA had the largest specific surface area and maximum orthophosphate removal, making it an effective adsorbent for reducing eutrophication in water.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Environmental
Yuuki Mochizuki, Javzandolgor Bud, Jiaqian Liu, Miki Takahashi, Naoto Tsubouchi
Summary: This study investigated the physical properties and P adsorption performance of various iron hydroxides prepared by different methods. Among the iron hydroxides, those prepared with NH3/NH4Cl buffer (Fe(A)) showed the highest P adsorption performance. The specific surface area and OH species were found to be important factors affecting the adsorption performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Xuetong Yang, Dave Manhaeghe, Rui Zhang, Shaoxian Song, Kristof Demeestere, Stijn W. H. Van Hulle
Summary: This study developed a two-step approach for the removal and recovery of phosphorus from phosphonates in wastewater. By using packed-bed ozonation combined with iron-coated sand granules, higher Ortho-P recovery efficiencies and sorption capacities were achieved. The study provides insights into sustainable wastewater treatment processes and the potential for valuable resource recovery.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Engineering, Environmental
Muhammad Ali Inam, Rizwan Khan, Muhammad Waleed Inam, Ick Tae Yeom
Summary: The study focused on the formation of iron hydroxide and removal of antimony ions from water through ferric chloride coagulation. Results showed that increasing pH decreases the solubility of iron hydroxide, reducing the adsorption capacity of antimony ions. Physical adsorption of antimony ions onto iron hydroxide was identified as the major mechanism, with increased electrolyte concentration enhancing sorption affinities for high antimony feed.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Physical
Xiang Chen, Zhaojian Qiu, Hanlu Xing, Shunxin Fei, Lianbo Ma
Summary: Transition-metal (oxy)hydroxides are efficient catalysts for electrochemical water splitting, with hierarchical porous nitrogen-incorporated cobalt-iron (oxy)hydroxide nanosheets showing superior oxygen evolution reaction performance. These catalysts exhibit low overpotential and high durability in practical hydrogen production, indicating promise for clean and renewable energy production.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Geochemistry & Geophysics
Yuanhang Li, Xiaofeng Gong, Yuheng Sun, Yao Shu, Danni Niu, Hongting Ye
Summary: By investigating the effects of different MW fractions of DOM on the adsorption onto Fe minerals and Fe reduction process, it was found that oxygen-rich H-DOM played a key role in both processes. The functional groups of oxygen-rich DOM were more favorable for adsorption onto Fe minerals and significantly enhanced the Fe reduction capacity.
Article
Chemistry, Multidisciplinary
Ming-Cyuan He, Sian-Jhang Lin, Tao-Cheng Huang, Guan-Fu Chen, Yen-Ping Peng, Wei-Hsiang Chen
Summary: The widespread presence of pharmaceutical pollution in the environment and its negative effects on public health and aquatic ecosystems have gained attention recently. Graphene oxide coated with magnetite (GO-Fe3O4) is effective in removing pharmaceuticals from water through adsorption. However, the presence of various compounds in real water has been found to affect the adsorption performance. This study aims to investigate the impact of blockage of pores by natural organic matter (NOM) of different sizes on pharmaceutical adsorption onto GO-Fe3O4 and explore the possibility of tuning the pore dimension of GO-Fe3O4 for selective adsorption of pharmaceuticals with different structural characteristics.
Article
Chemistry, Physical
Jing Shao, Yusheng Fang, Xiaobing Wu, Muhammad Imran Abdullah, Youkun Tao
Summary: In this study, an efficient MOR electrocatalyst NiSnPH@OOH/CC was reported, which showed high activity, stability, and selectivity towards methanol oxidation to formate. The surface amorphous layer of defect rich NiOOH generated in operando by selective Sn leaching effectively masked the OER and optimized the local coordination environment of the active NiOOH sites, resulting in > 99% selectivity with 100% Faradic efficiency for methanol-to-formate.
Article
Chemistry, Multidisciplinary
Kexin Zhou, Xing-peng Liu, Hongyun Guo, Hui-qiang Li, Ping Yang
Summary: CoNWs@CoAl-LDHs/Fe3O4 and CoNPs@CoAl-LDHs/Fe3O4 were successfully synthesized and applied to degrade HEDP and PMG. The results showed that both systems exhibited high removal rates for HEDP and PMG.