Article
Polymer Science
Adriana Popa, Maria Stefan, Sergiu Macavei, Ioana Perhaita, Lucian Barbu Tudoran, Dana Toloman
Summary: In this study, CoFe2O4-PVDF and CoFe2O4-ZnO-PVDF hybrid membranes were prepared using a modified phase inversion method with the application of a magnetic field. The addition of nanomaterials improved the hydrophilicity properties of the PVDF membrane and significantly influenced its intrinsic properties.
Article
Engineering, Environmental
Adriana Popa, Dana Toloman, Maria Stefan, Anca Petran, Sergiu Macavei, Sorin Ulinici, Manuela Stan, Lucian Barbu-Tudoran, Mihaela Vlassa, Ovidiu Pana
Summary: The PVDF-P(L-DOPA)-ZnO hybrid membrane effectively removed cationic dyes and antibiotics from water through structural modifications and improved photocatalytic properties. The efficient separation of photoinduced electron-hole pairs promoted photocatalytic activity, leading to high stability even after 3 cycles of use.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Joanna Kujawa, Monika Zieba, Wojciech Zieba, Samer Al-Gharabli, Wojciech Kujawski, Artur P. Terzyk
Summary: This study developed hybrid membranes based on polyvinylidene fluoride and single-walled carbon nanohorns, with surface structures inspired by hedgehogs and desert roses. Oxidation and ultrasonication treatments significantly improved the membrane performance, enhancing its selectivity and separation efficiency for volatile organic compounds. The modified membranes showed a wide range of contact angles and were suitable for membrane distillation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Weijun Dou, Junsheng Liu, Meng Li
Summary: The study synthesized graphene oxide-based hybrid membranes and characterized their performance properties, particularly focusing on the competitive adsorption of Cu2+ in mixed multi-metal solution. The results showed that the hybrid membranes exhibited good selectivity and adsorption efficiency for metal ions, suggesting potential applications in metal separation and recycle.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Polymer Science
Abdulaziz K. Assaifan, Muhammed Omer Aijaz, Monis Luqman, Q. A. Drmosh, Mohammed R. Karim, Hamad F. Alharbi
Summary: Electrospun nanofiber membranes have been widely used as heavy metal ion adsorbents, but are usually mechanically weak. Core-shell nanofiber membranes were produced by coaxial electrospinning of PVDF nanofibers as core nanofibers for mechanical support, and ZnO nanoparticles loaded PAN as shell nanofibers to enhance adsorption of cadmium ions, leading to a significant enhancement in adsorption capacity. Experimental results were better fitted with the pseudo-second-order kinetic model and Langmuir isotherm equation.
Article
Chemistry, Inorganic & Nuclear
Defeng Hu, Zhongqiao Sun, Yide Han, Hao Meng, Xia Zhang
Summary: A one-step interface synthesis strategy was used to construct Cu-BTC/PVDF hybrid membranes by dissolving Cu2+ ions and H3BTC in ionized water and n-octanol respectively, and laying PVDF films at the interface. The resulting membranes showed excellent adsorption capacity for CR due to the π-π stacking interaction and hydrogen bonding. The hybrid membranes also exhibited good separation advantages and cyclic adsorption performances, making them a promising option for removing organic dyes from practical wastewater.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Electrical & Electronic
Amina Omar, Islam Gomaa, Omar A. A. Mohamed, Hager Magdy, Hassan Saeed Kalloub, Mohamed H. H. Hamza, Tarek M. M. Mohamed, Maisara M. M. Rabee, Nada Tareq, Haity Hesham, Tamer Abdallah, Hanan Elhaes, Medhat A. A. Ibrahim
Summary: Synergistic doping of 2-D Material ZnO nanosheets and reduced graphene oxide (rGO) of Polyvinylidene fluoride (PVDF), PVDF/ZnO, and PVDF/ZnO/rGO Hybrid membranes were prepared by solution casting technique to increase the beta-phase ratio. Rietveld refinement X-ray diffraction technique, FTIR, Microscopic investigation, SEM, and density-functional theory (DFT) calculations were used to analyze the atomistic origin of negative piezoelectricity and the reasons for the enhancement of total dipole moment, electrostatic potential, and bandgap energy in the PVDF hybrid membranes, which were attributed to the displacive instability of two-dimensional material coupled with its reduced lattice dimensionality.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Environmental
Tutuk Djoko Kusworo, Andri Cahyo Kumoro, Nita Aryanti, Dani Puji Utomo
Summary: The study on novel PES nanohybrid membranes incorporating rGO and ZnO nanoparticles demonstrated significant improvement in membrane structure and performance, showing enhanced pollutant reduction and flux recovery ratio compared to conventional PES membranes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Bilal El Mrabate, Emma Szori-Doroghazi, Mohammed Ahmed Shehab, Tanya Chauhan, Gabor Muranszky, Emoke Sikora, Adam Filep, Nikita Sharma, Lilla Nanai, Klara Hernadi, Zoltan Nemeth
Summary: The novel photoactive membranes show great potential in wastewater treatment and removal of microorganisms or pollutants. The efficiency of BC-ZnO-MWCNT hybrid membranes in adsorption, photocatalytic degradation, and bacterial removal was investigated. The preparation method and amount of ZnO-MWCNT additives loaded significantly affect the photocatalytic efficiency.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Caihong Wang, Ke Liu, Dong Wang, Guomin Wang, Paul K. Chu, Zheyi Meng, Xuefen Wang
Summary: Hierarchical CuO-ZnO/SiO2 (CZS) nanofibrous membranes were designed and fabricated for the removal of Congo red and 4-nitrophenol in water. The membranes showed good adsorption characteristics and excellent catalytic reduction activity, making them promising for applications in water treatment and environmental protection.
ADVANCED FIBER MATERIALS
(2022)
Article
Construction & Building Technology
Pilomeena Arokiasamy, Mohd Mustafa Al Bakri Abdullah, Shayfull Zamree Abd Rahim, Mohd Remy Rozainy Mohd Arif Zainol, Mohd Arif Anuar Mohd Salleh, Marwan Kheimi, Jitrin Chaiprapa, Andrei Victor Sandu, Petrica Vizureanu, Rafiza Abdul Razak, Noorina Hidayu Jamil
Summary: Activated carbon has been a popular choice for heavy metal removal, but its amorphous structure and high cost have limited its performance. This study focuses on the synthesis of low-cost geopolymers using industrial sludge and metakaolin for improved heavy metal adsorption. The experimental results demonstrate that the synthesized geopolymers with lower solid to liquid ratio achieved the highest removal efficiency for copper.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Chemistry, Physical
Madhappan Santhamoorthy, Kokila Thirupathi, Thirukumaran Periyasamy, Dinakaran Thirumalai, Vanaraj Ramkumar, ShakilaParveen Asrafali, Seong-Cheol Kim
Summary: A mesoporous organosilica hybrid integrated with disulfide and amine groups was synthesized, which showed high adsorption capacity and recyclability.
SURFACES AND INTERFACES
(2022)
Article
Environmental Sciences
Xinghua Zhao, Jing Li, Shuyong Mu, Wei He, Dan Zhang, Xia Wu, Chuanyi Wang, Hehua Zeng
Summary: The study developed a novel membrane adsorbent with high adsorption capacity for the removal of heavy metal ions from wastewater, showing excellent recyclability and practical significance in water treatment applications.
ENVIRONMENTAL POLLUTION
(2021)
Article
Biochemistry & Molecular Biology
Yuran He, Panqing Zhang, Lijun Wang
Summary: This study investigated the adsorption kinetics, thermodynamics, and influencing factors of Cr6+, Cu2+, Pb2+, and Zn2+ using magnetic nano-chitosan (MNC). The results showed that the adsorption followed the pseudo-second-order kinetic model and Langmuir isothermal adsorption model, indicating chemical adsorption. The equilibrium adsorption capacity decreased with increasing MNC dosage, while the removal rate increased. pH had a varying effect on Cr6+, Cu2+, Pb2+, and Zn2+ adsorption. Metal ion initial concentration affected the equilibrium adsorption capacity and removal rate. Temperature had a strong influence on Cu2+ and Zn2+ adsorption, while co-existing ions decreased the adsorption of Cu2+, Pb2+, and Zn2+.
Article
Engineering, Environmental
Juan Qin, Yeting Fang, Changjin Ou, Junyue Wang, Fang Huang, Qian Wen, Zhipeng Liao, Jian Shi
Summary: A nanosized MgO modified TOB was fabricated for removing Cd2+ and Cu2+ from water, showing superior adsorption performance with equilibrium achieved within 30 and 60 minutes respectively. The modified TOB had theoretical adsorption capacities of 1428.57 mg/g for Cd2+ and 909.09 mg/g for Cu2+. The adsorption followed pseudo-second-order and Langmuir isotherm models, indicating chemical adsorption. The modified TOB efficiently removed contaminants even at a pH of 2.0.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
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)