Article
Chemistry, Physical
Yunhe Li, Weibao Liu, Lezhuo Li, Siyuan Jiang, Xiuwen Cheng
Summary: In this study, a nickel ferrite (NiFe2O4) system was developed for purifying phenol solutions in water. The effects of various operating parameters on the system's performance were investigated, including the amount of NiFe2O4, dosage of potassium persulfate (PS), microwave (MW) power, initial pH value, and different natural water anions. The results showed that the system achieved an excellent phenol removal efficiency of 97.74% within 30 minutes. The presence of co-existing anions such as chloride (Cl-), nitrate (NO3-), dihydrogen phosphate (H2PO4-), and bicarbonate (HCO3-) inhibited phenol degradation, while humic acid (HA) facilitated it. Free radical quenching experiments confirmed that sulfate radical (SO4 center dot(-)) and hydroxyl radical (HO center dot) were the primary radicals involved in the reaction mechanism. Stability experiments demonstrated the satisfactory stability of the NiFe2O4 system. Furthermore, mineralization and toxicity analysis confirmed the superiority of the as-constructed system in phenol degradation. The proposed degradation mechanism provides valuable insights for further applications of this system in advanced wastewater treatment.
Article
Engineering, Environmental
Xue Yang, Zhi Guo, Xing Chen, Shanshan Xi, Kangping Cui, Jie Li, Dazhuang Dong, Feiyan Wu, Zhangzhen Wu
Summary: Neonicotinoid pesticides in aquatic environments can be effectively degraded using modified biochar, specifically FeMn-BC with a Fe/Mn ratio of 3/1 prepared at 600℃. Under optimal degradation conditions, a removal rate of up to 99.0% for the pesticide thiamethoxam was achieved within 90 minutes. The system also showed good performance in natural surroundings and in real water samples.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Nathan Davison, Tanima Khatun, Isabel Arce-Garcia, Jamie A. Gould, James A. Dawson, Erli Lu
Summary: Transition-metal oxides (MOx) are crucial in various fields, but their reduction and doping processes usually require high energy and harsh conditions. This study introduces a new method utilizing mechanochemical ball milling and lithium metal, which enables MOx reduction and doping at room temperature within 20 minutes.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Engineering, Environmental
Jun Liang, Kexin Chen, Xiaoguang Duan, Ling Zhao, Hao Qiu, Xiaoyun Xu, Xinde Cao
Summary: This study evaluates the activation of persulfate (PS) by different carbonaceous materials under various pH values, and finds that pH has a significant impact on the degradation of sulfamethoxazole (SMX). High pH values are unfavorable for both radical and nonradical oxidation reactions. The activation mechanisms of different carbonaceous materials vary under different pH conditions.
Article
Environmental Sciences
Peng He, Yao Xiong, Yaozong Chen, Mengfei Liu, Jianyu Zhu, Min Gan
Summary: In this study, a persulfate catalyst (TMH@M) was prepared using montmorillonite and hematite for sulfamethoxazole degradation, achieving over 91% removal efficiency within 60 minutes. The degradation efficiency of SMX was affected by SMX concentration, PS dosage, and natural organic matters.
ENVIRONMENTAL RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Tong Liu, Qi Wang, Chenxuan Li, Minshu Cui, Yawen Chen, Rui Liu, Kangping Cui, Ke Wu, Xianbao Nie, Sanliu Wang
Summary: Nitrogen-doped magnetic carbon nanotubes-bridged biochar (Fe3O4@NCNTs-BC) was prepared and showed excellent capacity in activating persulfate for sulfamethoxazole (SMX) degradation. A direct electron transfer regime involving surface-bound metastable complexes was found to play a decisive role in the Fe3O4@NCNTs-BC800/peroxydisulfate (PDS) system. The differences in degradation performances and activation regimes were attributed to the surface hydroxyl groups of carbon-based catalysts and the structure discrepancies between PMS and PDS.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Mengxin Li, Chao Liu, Zhao Zhang, Shihai Cao, Hao Liu, Shigang Shen, Wenjing Wang
Summary: The study investigates the feasibility and mechanism of peroxydisulfate (PDS) activation by Cu-Fe bimetallic nanosheets. The novel Cu-Fe oxide nanosheets (CuFe-OS) exhibit regular crystal texture, multiple metal-oxygen bonds, and abundant oxygen vacancies, distinguishing them from Cu-Fe oxide. These features contribute to an increase in organic pollutant removal efficiency and degradation rate constant compared to Cu-Fe oxide. The coupling function of radical and nonradical pathways drives the activation process, with O-1(2) and O-center dot(2)- as the primary reactive oxygen species. Abundant oxygen vacancies benefit the generation of O-center dot(2)- and the conversion of metallic ions. The bimetallic synergy in CuFe-OS boosts reversible redox cycles. This work provides a novel strategy for wastewater remediation and deepens the understanding of coupled radical and nonradical mechanisms.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Sara M. Queiroz, Felipe S. Medeiros, Claudia K. B. de Vasconcelos, Glaura G. Silva
Summary: Hexagonal boron nitride nanosheets (h-BNNS) have shown great potential as 2D nanomaterials. A mechanochemical method using NaOH aqueous solution as a process aid was developed to obtain high-yield h-BN nanosheets. The material prepared by autoclave and ball milling followed by tip sonication at 40 degrees C (h-BNNS-T40) showed the most promising results in terms of yield, quality, and practicality. A hybrid lamellar material prepared by drop-casting and dip-coating techniques showed improved thermal stability and chemical interactions between h-BNNS and graphene oxide (GO).
Article
Engineering, Environmental
Priit Tikker, Niina Dulova, Iakov Kornev, Sergei Preis
Summary: Experimental research found that in acidic media, the best oxidation effect of oxalate was achieved at a molar ratio of 1:0.5 between oxalate and persulfate when using gas-phase pulsed corona discharge (PCD). However, the synergism of PCD/PS combination decreased with increasing initial pH of the treated solution.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Nada Alfryyan, Sumaira Manzoor, Mehar Un Nisa, Saima Farooq, Salma Aman, Naseeb Ahmad, El Sayed Yousef, M. S. Al-Buriahi, Z. A. Alrowaili, Hafiz Muhammad Tahir Farid
Summary: This study fabricated multi-skinned strontium telluride nano balls using the hydrothermal technique, which exhibited low overpotential, smaller Tafel slope, and excellent stability, suggesting its potential as an efficient and stable electrocatalyst for future energy conversion applications.
Article
Chemistry, Physical
Edmund Samuel, Ali Aldalbahi, Mohamed El-Newehy, Hany El-Hamshary, Sam S. Yoon
Summary: This study presents a facile method for the growth of beehive-like NiFe2O4 nanosheets, which can reduce electron transport distances in supercapacitor electrodes. By tuning the deposition duration, abundant energy storage sites and controlled cavities are achieved to facilitate electrolytic ion diffusion and enhance electrochemical performances. The synergistic effect of advantageous cavities and active sites in the nanosheets results in excellent stability and high capacitance retention rate after numerous charging and discharging cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Lide Jin, Ghebretensae Aron Kifle, Yuan Huang, Chunyang Li, Haibo Chen, Minghui Xiang, Chen Wang, Jin Zhang, Zhiyuan Yang, Siyang Li, Zhen Lu, Hui Li
Summary: The Fe7S8/PS system exhibited high efficiency in the removal of TCP from groundwater due to the involvement of sulfate radical (SO4·-) and hydroxyl radical (·OH). The hexagonal Fe7S8 sheets synthesized in this study enhanced the activation of PS and the degradation of TCP.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Electrochemistry
Shuli Wang, Peixuan Xu, Jingqi Tian, Zong Liu, Ligang Feng
Summary: This study successfully demonstrated phase structure tuning of graphene supported Ni-NiO nanoparticles system to enhance urea oxidation performance. By optimizing the annealing temperature, the sample obtained at 450 degrees Celsius exhibited the highest catalytic activity and stability.
ELECTROCHIMICA ACTA
(2021)
Article
Environmental Sciences
Kubra Ulucan-Altuntas, Senem Yazici Guvenc, Emine Can-Guven, Fatih Ilhan, Gamze Varank
Summary: This study investigated the degradation of oxytetracycline by heat-activated peroxydisulfate and peroxymonosulfate processes. Response surface methodology was used to evaluate the effect of process parameters on oxytetracycline removal efficiency, showing significant results for both processes. The predicted oxytetracycline removal efficiencies for the PDS and PMS processes were 89.7% and 84.0%, respectively, with the PDS process having higher kinetic constants at all pH values than the PMS process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Lu-Lu Zhou, Peng-Xi Liu, Ying Ding, Jia-Rui Xi, Li-Juan Liu, Wei-Kang Wang, Juan Xu
Summary: Hierarchically porous NiO catalyst assembled with 2D nano-flakes is effective for activating PDS to degrade organic pollutants like BPA. The optimized NiO-12 catalyst exhibits high specific surface area, hierarchically porous structure, and efficient electron transfer for enhanced BPA degradation. This study demonstrates a new strategy for fabricating hierarchical 2D porous catalysts with application potential in practical wastewater treatment.
CHEMICAL ENGINEERING JOURNAL
(2022)
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)