Article
Environmental Sciences
Beata Smieja-Krol, Miroslawa Pawlyta, Mariusz Galka
Summary: This study investigates the properties and structures of authigenic metal sulfides formed in severely degraded soil near a ZnPb smelter in CE Europe. The results show that the metal sulfides self-organize into complex structures and limit the mobility of cadmium in the soil. However, this mechanism leads to the enrichment of cadmium relative to zinc over extended periods. Additionally, the study reveals the crystallization of lead in the soil.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Huiyun Ren, Huan Li, Honglei Fan, Guisheng Qi, Youzhi Liu
Summary: This paper proposes a new method for the rapid preparation of CoFe2O4-graphene oxide nanocomposite (CoFe2O4-GO) using the high gravity technology. The impinging stream-rotating packed bed (IS-RPB) process can complete the preparation process in less than 1 minute. The experimental results show that CoFe2O4-GO-RPB has good adsorption performance towards heavy metal lead, with an adsorption capacity of 459.8 mg.g(-1). The adsorption mechanism of lead by CoFe2O4-GO was mainly electrostatic adsorption, ion exchange, and complexation, as confirmed by XPS and FT-IR analysis. Therefore, this study provides a convenient and rapid method for the preparation of CoFe2O4-GO with excellent reactivity, enriching the application of high-gravity co-precipitation in the removal of hazardous heavy metals from wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shanmuga Sundari Chandraraj, Joseph Raj Xavier
Summary: Supercapacitors, known for their high-power density, long lifespan, and low maintenance requirements, are becoming more common. Cobalt sulphide, nickel sulphide, and graphene oxide (CoS/NiS/GO) nanocomposites were developed for use in supercapacitors due to their low cost and superior electrochemical characteristics. Various analyses including X-ray diffractometry and microscopy were conducted to assess the purity and morphology of the materials. Tests showed that the CoS/NiS/GO electrode had significantly lower impedance and higher electrochemical performance compared to the GO electrode. The CoS/NiS/GO nanocomposite exhibited a high specific capacitance and long cycle life.
SURFACES AND INTERFACES
(2023)
Article
Environmental Sciences
Nicolas Layglon, Melina Abdou, Francesco Massa, Michela Castellano, Eric Bakker, Paolo Povero, Mary-Lou Tercier-Waeber
Summary: In this study, the dynamic fractions of copper, lead, cadmium, and zinc were observed in real-time in the Genoa Harbor. The results showed a clear spatial trend in the distribution of these metals and highlighted the need for revised environmental quality standards to protect aquatic life and resources.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Shaoting Du, Qi Lu, Lijuan Liu, Yu Wang, Jiaxin Li
Summary: The study found that catabolizing abscisic acid (ABA) in hyperaccumulating plants via rhizobacteria can significantly increase the uptake efficiency of heavy metals, potentially providing a promising strategy for enhancing phytoremediation efficacy in HM-contaminated soils.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Energy & Fuels
Zeyu Xue, Lu Dong, Zhaoping Zhong, Xudong Lai, Yaji Huang
Summary: The study demonstrates that intercalation-exfoliation modification enhances the capture capacity of montmorillonite for heavy metals, especially showing significant improvements for Pb, Zn, and Cr, while having adverse effects on Cd in some cases. The modified MMT enhances the chemisorption of heavy metals by exposing more active sites.
Article
Multidisciplinary Sciences
Roozbeh Soltani, Rasool Pelalak, Mahboubeh Pishnamazi, Azam Marjani, Ahmad B. Albadarin, Shaheen M. Sarkar, Saeed Shirazian
Summary: A novel carboxylic acid-functionalized layered double hydroxide/metal-organic framework nanocomposite was developed as a potential adsorbent for the removal of toxic Cd(II) and Pb(II) from water. The synthesized nanocomposite showed high adsorption capacities for both Cd(II) and Pb(II) based on Langmuir model.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Electrical & Electronic
Chi Yu, Junhao Peng, Jianhua Guo, Zhenhang Yin, Shixuan Lv, Xinghua Jiang
Summary: With the development of 5G communication technology, electromagnetic wave pollution has become more severe in military and civilian fields. This study prepared Ti3C2Tx MXene@Zn-Mn ferrite (MXene@ZMF) composites using a facile coprecipitation method, and enhanced the microwave absorption performance of the composite by incorporating magnetic ZMF nanoparticles.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Geology
Wenrui Song, Lisheng Gao, Chen Wei, Yunzhu Wu, Hanjie Wen, Zhilong Huang, Jiawei Zhang, Xiaocui Chen, Yuxu Zhang, Chuanwei Zhu
Summary: The Sichuan-Yunnan-Guizhou metallogenic province (SYGMP) contains more than 400 Zn-Pb deposits and prospects, with eight large-scale deposits containing critical metals such as Cd and Ge. The geochemical features of the newly discovered Zhugongtang Zn-Pb deposit are similar to the Huize deposit, but they have different host strata. The study analyzes the metal sources of the Zhugongtang deposit through the determination of delta 114/110Cd values and major- and trace-element compositions of sphalerites, suggesting a mixing of sedimentary and basement rocks as the metal sources.
ORE GEOLOGY REVIEWS
(2023)
Article
Environmental Sciences
Brener Felipe Melo Lima Gomes, Caroline Maria Bezerra de Araujo, Bruna Figueiredo do Nascimento, Eleonora Maria Pereira de Luna Freire, Mauricio Alves Da Motta Sobrinho, Marilda Nascimento Carvalho
Summary: Graphene oxide (GO) was successfully synthesized and characterized, showing high potential for the adsorption of Cd (II) and Pb (II) due to its high adsorption capacity, rapid intake, and great regeneration performance. Adsorption experiments indicated that increasing adsorbent mass improved the removal efficiency of Cd (II) and Pb (II), with Freundlich isotherm better describing Pb (II) adsorption and linear behavior observed for Cd (II) isotherm. Kinetic data were satisfactorily described by pseudo-first order model for Cd (II) and pseudo-n order model for Pb (II), and GO exhibited efficiency of over 90% in five regeneration cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Idha Yulia Ikhsani, Kuo Hong Wong, Hiroshi Ogawa, Hajime Obata
Summary: The distribution of trace metal micronutrients in the eastern Indian Ocean was studied, and it was found that dissolved iron was enriched in the surface mixed layer and the subsurface maxima of iron coincided with the dissolved oxygen minima. Other trace metals were not enriched in the oxygen minimum zone. In deep water, iron, manganese, and lead levels were low, while cadmium, copper, and zinc concentrations increased with depth. The study also explored the relationship between trace metals and phosphate in the Bay of Bengal.
Article
Chemistry, Physical
Ramadhass Keerthika Devi, Muthusankar Ganesan, Tse-Wei Chen, Shen-Ming Chen, Muthumariappan Akilarasan, Syang-Peng Rwei, Jaysan Yu, Tamilalagan Elayappan, Anlin Shaju
Summary: The surface morphology and performance of nickel sulfide (NiS) have been modified by doping with manganese (Mn), resulting in a nanosheet structure with a maximum specific capacitance of 815 g-1 at 2 A-1. Additionally, oxygen (O) and nitrogen (N) enriched 3D-graphene-like porous activated carbon (ONAC) has been derived from biomass. A hybrid supercapacitor (HSC) composed of Mn-NiS nanosheets as the positive electrode, ONAC as the negative electrode, and PVA/KOH gel as the electrolyte exhibited impressive specific energy of 44.2 W h kg-1 at 825 W kg-1 specific power.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Hefei Sun, Qinggang Zhang, Takeshi Hagio, Ichino Ryoichi, Long Kong, Liang Li
Summary: In this study, a series of three-dimensional graphene-based materials (3D GBMs) with high specific surface area and abundant surface structures were synthesized. It was demonstrated that introducing N-containing or O-containing functional groups can significantly enhance the CO2 adsorption performance of 3D GBMs, and the simultaneous introduction of these two functional groups further increased the adsorption capacity of CO2. These materials have great potential in CO2 capture and storage.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Yuanting Lei, Lili Zhang, Wenjing Xu, Chengli Xiong, Wenxing Chen, Xu Xiang, Bing Zhang, Huishan Shang
Summary: This study successfully synthesized a novel carbon fiber-supported multi-metal sulfide nanoarray using a mild cation exchange strategy. The resulting nanoarray exhibited excellent catalytic activity and stability in alkaline medium, providing a viable synthesis route for water electrolysis.
Article
Chemistry, Physical
Min Fu, Qingru Zhuang, Zitong Zhu, Zhihao Zhang, Wei Chen, Qingyun Liu, Hao Yu
Summary: Hybrid electrode materials of vanadium pentoxide (V2O5) grown on graphene by a microwave synthetic method exhibit excellent electrochemical performances in supercapacitors, with specific capacitances, capacitance retention, energy density, and power density surpassing many similar devices. This study also investigates the capacitive performances of V2O5/graphene composites with different component ratios and discusses the charge storage mechanism comprehensively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Shuang Wang, Chun Liu, Leizhi Zheng, Changqing Lin, Pengpeng Kuang, Xiaoqi Fu, Naichao Si
NEW JOURNAL OF CHEMISTRY
(2016)
Article
Chemistry, Multidisciplinary
Xiaoqi Fu, Pengpeng Kuang, Shuang Wang, Guolin Zhang, Hengbo Yin
Article
Nanoscience & Nanotechnology
Zhixiang Xu, Jianyuan Zhang, Haiqin Liu, Pengpeng Kuang, Shuang Wang, Xiaoqi Fu
NANOMATERIALS AND NANOTECHNOLOGY
(2017)
Article
Engineering, Chemical
Guolin Zhang, Long Chen, Xiaoqi Fu, Hui Wang
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2018)
Article
Chemistry, Physical
Qingfeng Zhang, Yadong Zhou, Xiaoqi Fu, Esteban Villarreal, Lichao Sun, Shengli Zou, Hui Wang
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Multidisciplinary
Changqing Lin, Mingzhen Kang, Leizhi Zheng, Xiaoqi Fu, Shuang Wang
Article
Nanoscience & Nanotechnology
Mengqi Sun, Xiaoqi Fu, Kexun Chen, Hui Wang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Inorganic & Nuclear
Rongxian Zhang, Zhichen Hu, Shiqing Cheng, Wentao Ke, Tianya Ning, Jingbo Wu, Xiaoqi Fu, Guoxing Zhu
Summary: The development of high-efficiency non-precious metal-based electrocatalysts for the oxygen evolution reaction is crucial for hydrogen production and energy storage. CuCo2S4 nanosheets synthesized in this study showed superior catalytic performance with low overpotential and excellent stability, providing guidelines for the design and development of bimetallic sulfide electrocatalysts for the OER.
INORGANIC CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Peng Chen, Jia Cheng, Yuanjun Liu, Xiaofang Cheng, Junjie Mao, Xin Chen, Weiqi Wang, Xiaoping Shen, Xiaoqi Fu, Guoxing Zhu
Summary: In this study, Fe/Co-based 8-hydroxyquinoline compounds were used as precatalytic electrode for oxygen evolution, achieving high catalytic activity with an overpotential of 247 mV at 10 mA cm(-2) in 1.0 M KOH. The phase transformation of the catalytic electrode during OER operation was carefully investigated, providing insights for the understanding of electrocatalyst activation and development of advanced electrocatalysts.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Mengqi Sun, Nicholas Kreis, Kexun Chen, Xiaoqi Fu, Song Guo, Hui Wang
Summary: Copper sulfide nanoparticles can be synthesized with tunable geometric parameters and chemical compositions to modify their optical and plasmonic properties. The study demonstrates a temperature-programmed synthetic approach to produce monolithic covellite nanodisks with controllable thickness and lateral diameters, expanding their plasmonic tunability across different infrared ranges. Additionally, the transformation of covellite nanodisks into multicrystalline digenite nanorings through a phase-transitioning process leads to modified plasmonic properties and energy shifts of the nanoparticles.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Physical
Jiannan Zhu, Jing Huang, Jiawei Dai, Rong Chen, Xiaoqi Fu, Zhengyun Wang, Hongfang Liu, Guangfang Li
Summary: This study investigates the size effect of plasmonic Au@Pd core-satellite nanoparticles on the photocatalytic formic acid (FA) dehydrogenation under visible light. The results show that the smallest nanoparticles with the highest absorption/extinction ratio possess the best catalytic performance. Additionally, large nanoparticles with high scattering exhibit unexpectedly enhanced activities by raising the reaction temperature or shortening the interparticle distance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Xiafang Ji, Peng Chen, Yuanjun Liu, Zhenyuan Ji, Hongbo Zhou, Caiyao Chen, Xiaoping Shen, Xiaoqi Fu, Guoxing Zhu
Summary: In this study, Ir/Ni-NiO/CNT composite catalysts were designed and prepared. The as-prepared catalyst exhibited excellent catalytic performance in alkaline media, surpassing commercial Pt/C catalysts. Experimental and theoretical calculations showed that the presence of Ni-NiO facilitated the Volmer step for HOR by weakening the hydrogen binding energy on Ir sites.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Xiaoqi Fu, Menglin Shao, Yuhan Guo, Xinyu Liu, Zian Li
Summary: This study reports the synthesis of a graphene-like porous carbon through co-pyrolysis, which shows promising potential as a sustainable energy storage strategy. The hierarchically N-doped porous carbon structure provides a large specific surface area and interconnected porous structure, leading to high specific capacitance and excellent charge transfer properties.
Article
Chemistry, Multidisciplinary
Xiaoqi Fu, Guangfang Grace Li, Esteban Villarreal, Hui Wang
Article
Chemistry, Multidisciplinary
Leizhi Zheng, Shuang Wang, Yanfang Yang, Xiaoqi Fu, Tingshun Jiang, Juan Yang
