Article
Chemistry, Multidisciplinary
Jing Qi, Gang Zhao, Sheng Liu, Wei Chen, Guangyi Liu
Summary: This paper investigated the effect of a novel collector, HAHD, on the flotation recovery of tungsten minerals. The results showed that HAHD dramatically improved the floatability of Pb(II)-activated scheelite and achieved efficient separation of scheelite from calcite.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Chemical
Xiaoyu Cao, Chaoyan Liu, Xiaoping Huang, Jianxian Zeng, Jianrong Xue, Rui Zhang, Kaihua Huang, Zhanfang Cao, Hong Zhong
Summary: A novel collector OCETC was synthesized and successfully applied to recover malachite. OCETC reacted with Cu(II) ions on malachite surface, forming chemical bonds and significantly improving the hydrophobicity of malachite. The flotation recovery of malachite using OCETC was comparable to or even better than that using other commonly used collectors.
Article
Engineering, Chemical
Song Zou, Shuai Wang, Xin Ma, Jia Yang, Hong Zhong
Summary: Efficient and selective flotation separation of chalcopyrite and pyrite in copper-sulfur ores was achieved by using a newly-synthesized organic compound MDPE as a flotation collector. MDPE showed superior flotation selectivity for chalcopyrite against pyrite at low alkalinity (pH = 8.5), and had a stronger adsorption affinity towards chalcopyrite. The formation of Cu-MDPE complexes with C-S-Cu structure was confirmed to be responsible for the chemical absorption of MDPE on chalcopyrite surfaces.
MINERALS ENGINEERING
(2023)
Article
Engineering, Chemical
Qiuyue Sheng, Bin Yang, Shaohang Cao, Wanzhong Yin, Haoran Sun, Yingqiang Ma, Keqiang Chen
Summary: This study investigated the adsorption mechanism of cupferron on malachite surfaces using XPS, FTIR, DFT calculations, and micro-flotation tests. The results showed that the adsorption was mainly due to the reaction between O atoms in cupferron and Cu atoms on malachite surfaces. The research provides insights into the strong collecting performance of cupferron for malachite in flotation applications.
MINERALS ENGINEERING
(2021)
Article
Chemistry, Physical
Song Zou, Shuai Wang, Xin Ma, Jia Yang, Hong Zhong
Summary: To improve the flotation separation of sulfide lead-zinc ores, a novel collector called MDPE was designed and synthesized. Surface tension tests showed that MDPE had higher surface activity and greater hydrophobicity compared to the conventional collector Ester-105. Microflotation experiments revealed that MDPE achieved higher flotation recovery of galena (90.75%) and significantly improved the flotation selectivity against sphalerite.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Mining & Mineral Processing
Han Wang, Shuming Wen, Guang Han, Yongxin He, Qicheng Feng
Summary: Pretreatment with an appropriate concentration of copper ions can improve the recovery rate of malachite, while an excessive amount of copper ions reduces the hydrophobicity of the malachite surface. Copper ion pretreatment also promotes sulfidization reactions and the formation of a sulfidization layer on the malachite surface.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2022)
Article
Metallurgy & Metallurgical Engineering
Jing-jing Xiao, Jing-zhi Wu, Si-si Liu, Jia Tu, Ru-kuan Liu, Chang-zhu Li, Gang Zhao
Summary: A novel surfactant DBPHA was designed and synthesized as a cassiterite flotation collector, and it showed higher flotation recovery of cassiterite compared to the commonly used collector BHA. The adsorption mechanism of DBPHA on cassiterite surface was investigated using various techniques, which revealed that DBPHA chemisorbed onto the surface and formed DBPHA-Sn species. The presence of hydroxamate and phosphoryl groups in DBPHA provided active sites for bonding with surface Sn atoms, leading to efficient enrichment of cassiterite.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Chemistry, Physical
Xingcai Yu, Peilun Shen, Zhengdao Yin, Liang Wang, Han Wang, Dianwen Liu
Summary: This study investigates the activation mechanism of surface modification of malachite using 2,5-Dimercapto-1,3,4-thiadiazole (DMTD). The results show that DMTD can enhance malachite flotation recovery and affect the adsorption of butyl xanthate (BX) by promoting the formation of a hydrophobic and stable copper-sulfide species on the malachite surface.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Xingrong Zhang, Liang Lu, Youhui Li, Yangge Zhu, Long Han, Chengbi Li
Summary: In this study, the flotation separation performances of malachite from calcite were significantly improved using the new chelating collector CMDTP compared to other common collectors. The results showed that CMDTP exhibited a stronger affinity to malachite surface and could easily react with Cu2+ sites on the malachite surface, leading to successful separation from calcite.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Qi Zuo, Dandan Wu, Shuming Wen, Huiqin Chen, Jing Cao
Summary: This study used ammonium acetate to improve the flotation separation of malachite from calcite. The presence of ammonium acetate significantly increased the recovery rates of malachite and calcite. Surface analysis showed that ammonium acetate prevented the adsorption of Cu-S on calcite, resulting in a decrease in surface roughness. Additionally, ammonium acetate facilitated the formation of highly crystalline Cu-S on malachite. The presence of carboxylate (CH3COO-) hindered the adsorption of Cu-S on the O site of calcite. In summary, ammonium acetate catalyzed the sulfidation of malachite and inhibited the activation of calcite, leading to improved flotation separation.
APPLIED SURFACE SCIENCE
(2024)
Article
Engineering, Chemical
Zuchao Pan, Jingjing Xiong, Yanfang Cui, Qian Wei, Wenhao Jia, Zhengquan Zhang, Fen Jiao, Wenqing Qin
Summary: This study investigates the carbonaceous material in lead-zinc ore flotation and finds that carbon pre-flotation can enhance the grade and recovery of lead. The properties of the enriched carbonaceous material are analyzed, and it is found that amorphous carbon is the major component with abundant pore structures and a large specific surface area. The adsorption capacity of amorphous carbon for diethyl dithiocarbamate is superior to that of galena.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Han Wang, Shuming Wen, Guang Han, Qicheng Feng
Summary: This study investigated the impact of Pb(II) on the flotation of sulfidized malachite. Results showed that Pb(II) treatment increased the floatability and recovery rate of the malachite, by adsorbing on the mineral surface and promoting collector adsorption. Analytical techniques like XPS and ToF-SIMS confirmed the positive effect of Pb(II) on malachite sulfidization.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Xiaoyu Cao, Xiaoping Huang, Jianxian Zeng, Rui Zhang, Hong Zhong, Zhanfang Cao
Summary: The role of the thioether (C-S-C) group in improving the flotation performance of benzo-hydroxamic acid (BHA) toward galena was studied. It was found that the incorporation of C-S-C group increased the functional groups, chelating ability and hydrophobicity of BHA, enhancing its flotation performance to galena. The adsorption mechanism analysis showed that the BTHA molecule anchored on the galena surface mainly through the reactions of the two O atoms originated from -C(=O)-NH-OH group and lead species forming a five-membered ring. The C-S-C group in BTHA molecule could donate its electrons to lead species on galena surface, facilitating the adsorption of BTHA.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Zhiyong Zhang, Qingchao Sun, Sheng Liu, Zhijun Lu, Xiaoxue Niu, Mahmoud Mohamed Mohamed Ahmed, Guangyi Liu
Summary: In this study, ATT was applied as a collector in flotation separation of galena from sphalerite, showing selective flotation of galena at specific pH conditions. Experimental results indicated that increasing the pulp pH significantly reduced the adsorption of ATT on sphalerite, while had minimal effect on its adsorption on galena. The mechanism of ATT chemisorption onto galena surfaces through surface Pb(II) interaction was elucidated with conclusive evidence from FTIR and XPS analysis.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Chengwen Wang, Lei Sun, Qingqing Wang, Yanxiu Wang, Yang Cao, Xin Wang, Ping Chen, Wei Sun
Summary: The study found strong adsorption between NBH and malachite, with adsorption density correlated with NBH concentration. Through a series of experiments and analyses, the interaction process between malachite and NBH was summarized as activation, diffusion and reduction, combination, and redeposition.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Sheng Liu, Lei Xie, Guangyi Liu, Hong Zhong, Yixiang Wang, Hongbo Zeng
Article
Metallurgy & Metallurgical Engineering
Jun Liu, Zhe Hu, Guangyi Liu, Yaoguo Huang, Zhiyong Zhang
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2020)
Article
Materials Science, Multidisciplinary
Hongli Fan, Jingqin Qin, Jun Liu, Guangyi Liu, Xianglin Yang
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2019)
Article
Chemistry, Physical
Jun Liu, Guangyi Liu, Yaoguo Huang, Zhiyong Zhang
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
Zhanfei Zhang, Yan Dong, Guangyi Liu, Jiangwei Li, Hui Sun, Hao Luo, Sheng Liu
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Chemistry, Physical
Jing Qi, Guangyi Liu, Yan Dong
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Article
Engineering, Chemical
Jun Liu, Guangyi Liu, Xianglin Yang, Yan Dong, Zhiyong Zhang
MINERALS ENGINEERING
(2020)
Article
Engineering, Chemical
Jing Qi, Hongli Fan, Guangyi Liu
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Metallurgy & Metallurgical Engineering
Sheng LIU, Guang-yi LIU, Yao-guo HUANG, Hong ZHONG
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2020)
Article
Chemistry, Physical
Hongli Fan, Wen Tan, Guangyi Liu
Summary: The study found that bastnasite exhibited good floatability using HDDPA as a collector at pH 7.0-10.0, with efficient separation from calcite at around pH 8.0. HDDPA(3)- anions were able to replace CO32- ions on the bastnasite surface, resulting in a high flotation recovery. However, increasing OH concentration reduced the floatability of bastnasite as competition with HDDPA anions intensified.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Zhiyong Zhang, Yiming Wang, Guangyi Liu, Sheng Liu, Jun Liu, Xianglin Yang
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2020)
Article
Chemistry, Physical
Jing Qi, Yan Dong, Sheng Liu, Guangyi Liu
Summary: OAHD was designed as a cassiterite flotation collector, which formed nano-aggregates on cassiterite surfaces, improving hydrophobicity and decreasing surface energy. It showed excellent collecting properties towards cassiterite, with lower flotation recovery for calcite compared to octyl hydroxamic acid.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Zhiyong Zhang, Qingchao Sun, Sheng Liu, Zhijun Lu, Xiaoxue Niu, Mahmoud Mohamed Mohamed Ahmed, Guangyi Liu
Summary: In this study, ATT was applied as a collector in flotation separation of galena from sphalerite, showing selective flotation of galena at specific pH conditions. Experimental results indicated that increasing the pulp pH significantly reduced the adsorption of ATT on sphalerite, while had minimal effect on its adsorption on galena. The mechanism of ATT chemisorption onto galena surfaces through surface Pb(II) interaction was elucidated with conclusive evidence from FTIR and XPS analysis.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Sheng Liu, Lei Xie, Hui Qian, Guangyi Liu, Hong Zhong, Hongbo Zeng
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)