Article
Materials Science, Ceramics
Charitha Thambiliyagodage, Shanitha Mirihana
Summary: This study successfully synthesized Fe and Cu co-doped TiO2 nanoparticles and investigated their photocatalytic activity. Doping with Fe and Cu can enhance the visible light sensitivity of TiO2, but increasing dopant concentration leads to a decrease in photocatalytic activity.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yuanting Wu, Mengyao Guan, Xiaojing Chang, Jinrong Wang, Shuming Xu
Summary: We constructed a homogeneous double-layer TiO2-ZrO2-SiO2 photocatalyst with multi-heterojunction (D-TZS) using a simple sol-gel method, which effectively improves the photocatalytic property. By investigating various factors, we found that D-TZS can degrade Rh B by about 99.6% within 40 minutes and almost completely degrade it within 60 minutes. This is attributed to the homogeneity, multiple heterojunctions, and oxygen vacancies of D-TZS.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Ilknur Altin
Summary: A CuO-TiO2/GO nanocomposite was successfully prepared as a visible light-responsive photocatalyst. The photocatalytic performance could be improved by adjusting the proportion between CuO-TiO2 and GO, with the best GO percentage being 10wt%. The composite exhibited excellent BPA removal performance after 300 min. of visible light irradiation.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Nanoscience & Nanotechnology
Soad Z. Alsheheri, Ahmed Shawky, Wejdan T. Alsaggaf, Z. Zaki
Summary: The accumulation of Cr(VI) ions can have serious impacts on the environment and human health. This study presents a simple synthesis of ZnSe nanoparticles anchored to TiO2 for visible-light-driven photocatalytic reduction of Cr(VI) ions. The introduction of ZnSe enhances the light absorption and significantly improves the photocatalytic activity, while the nanocomposite exhibits good stability.
Article
Materials Science, Ceramics
Tariq R. Sobahi, M. S. Amin
Summary: By synthesizing BaTiO3@MWCNT nanocomposites, the efficiency of photocatalytic oxidation of Atrazine (AT) under visible light was improved, showing excellent performance and stability of the nanocomposite.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Cuixia Li, Youyou Zhang, Haize Jin, Weichao Kang, Wenhui Kong, Wensheng Li
Summary: Nano-Ag10Si4O13 has the potential to inhibit the recombination of photoinduced electron hole pairs via an internal electric field induced by asymmetrical Si-O tetrahedral chains, and it exhibits good efficiency during all chemical dynamical processes.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Environmental
Periyakaruppan Karuppasamy, Nagoorkani Ramzan Nilofar Nisha, Arivalagan Pugazhendhi, Sabariswaran Kandasamy, Sakthivel Pitchaimuthu
Summary: The study focused on preparing semiconducting materials like TiO2 and transition metal-doped TiO2 using a sol-gel method and characterizing them through various analyses. Among them, Zn-doped TiO2 showed the best photocatalytic efficiency in decolouring Methylene blue dye under visible light irradiation. Results indicated that Zn-doped TiO2 had a lower band gap, leading to enhanced dye degradation compared to other catalysts. UV-vis spectra and the decolouration percentage of Methylene blue showed the superior photocatalytic activity of Zn-doped TiO2.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Jovana Cirkovic, Aleksandar Radojkovic, Danijela Lukovic Golic, Nikola Tasic, Mirta Cizmic, Goran Brankovic, Zorica Brankovic
Summary: This study systematically investigated the photocatalytic activity of single-phase BiFeO3 nanopowder under simulated solar irradiation in the presence of a highly polluting textile dye. The results showed that BFO nanoparticles exhibited high photocatalytic activity, especially in basic solutions, and could be reused multiple times without significant activity losses.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Siripond Phromma, Tuksadon Wutikhun, Panita Kasamechonchung, Suchinda Sattayaporn, Tippabust Eksangsri, Chaweewan Sapcharoenkun
Summary: Silver modified titanium dioxide (Ag-TiO2) nanoparticles with different loading were synthesized and their effects on the structure of TiO2 were investigated. The presence of Ag+-ion in TiO2 structure was confirmed, resulting in Ag substitution and oxygen vacancy in TiO2. XRD and XANES findings revealed the phase transformation and modification of lattice parameters of anatase and rutile phases in the TiO2 structure following Ag doping, indicating the successful introduction of Ag into TiO2. Low Ag doping contents showed better photocatalytic activity than higher doping contents under visible light.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Inorganic & Nuclear
Anshu Kumar Singh, Pramod Kumar Vishwakarma, Sumit Kumar Pandey, Raghvendra Pratap, Rajiv Giri, Anchal Srivastava
Summary: Organic pollutants from the textile industries are polluting water resources and posing a threat to aquatic ecosystems. High-performance photocatalysts that can be activated by visible light are needed. TiO2 has been widely studied as a photocatalyst, but its limitations have led researchers to explore modifications. In this study, MWCNTs were used to modify TiO2 and compared for their ability to degrade methylene blue dye under visible light irradiation. The in-situ CNTs-TiO2 nanocomposite showed higher degradation efficiency and stability due to strong chemical interactions with MWCNTs.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Kamol Dey, Sonalika Vaidya, Anna Gobetti, Giorgio Ramorino, Ashok K. Ganguli
Summary: Undoped and N-doped TiO2 anatase/brookite mixed-phase nanoparticles were synthesized via a sol-gel method using urea as a nitrogen source. Nitrogen played a dual role in doping and controlling the anatase and brookite phases in the nanoparticles. N-doped anatase/brookite mixed-phase nanoparticles exhibited superior photocatalytic activity in degrading rhodamine-B under simulated visible light irradiation.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
Laxmi Prasad Rao Pala, Nageswara Rao Peela
Summary: An optofluidic planar microreactor has been developed for oxygen production through water splitting under visible light illumination. The thickness of the catalyst coating and the reactant flow rate were found to significantly impact the rate of oxygen production.
Article
Environmental Sciences
Zhuohong Cong, Liang Zhou, Nanxiang Zheng, Taiwo Sesay
Summary: In this study, copper aluminate nanoparticles (CuAl2O4) were synthesized using the sol-gel method and validated for their structure, morphology, and optical properties. The CuAl2O4 powder exhibited a particle size of 20-37 nm and a spinel-type structure. With a band gap of 1.50 eV, the CuAl2O4 nanoparticles showed potential for effective visible-light degradation. Further analysis on the photocatalytic performance revealed that fluorescent light irradiation with CuAl2O4 nanoparticles calcined at 700 degrees C yielded the best results in degrading vehicle emissions (CO, HC, and NO).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Mabkhoot Alsaiari
Summary: Efforts to create a novel visible light efficient photocatalyst using biomass derived active carbon modified TiO2 have shown successful results in reducing chromium (VI) to chromium (III) under visible light. The developed photocatalysts demonstrated enhanced photo-reduction efficiencies and recyclability, with promising potential for practical applications.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Rajakumar Ananthakrishnan, Priyanka Das
Summary: Remediation of water pollutants using visible light-aided photocatalysis is a promising technique. In this study, a TiO2-based hybrid material with visible light activity and magnetic separability was developed for the degradation of bisphenol A (BPA) in water. The material showed high efficiency in the photodegradation of BPA under visible light irradiation.
NEW JOURNAL OF CHEMISTRY
(2022)
Review
Materials Science, Multidisciplinary
Chaohui He, Muhammad Asif, Qingqing Liu, Fei Xiao, Hongfang Liu, Bao Yu Xia
Summary: This review briefly introduces the fundamentals and development of glucose sensors and discusses the modification strategies of noble metal (NM) nanomaterials and their applications in enzyme-free glucose detection from the perspective of surface construction and interface modification. The challenges and opportunities for noble metal materials in electrochemical nonenzymatic glucose detection are also proposed.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Lipei Jiang, Jiannan Zhu, Guangfang Li, Zhuang Rao, Zhengyun Wang, Hongfang Liu
Summary: A new method involving partial thermal reduction and galvanic replacement is reported to induce CuPt growth on a CuHHTP MOF, resulting in the construction of a CuPt@CuHHTP heterojunction. The size of the CuPt nanoparticles can be effectively regulated by modifying the reduction temperature. The CuPt NP@CuHHTP heterojunction nanoarrays exhibit high electrocatalytic activity and potential as an electrochemical H2O2 sensor with a low detection limit, high sensitivity, and outstanding selectivity.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jiannan Zhu, Jing Huang, Jiawei Dai, Lipei Jiang, You Xu, Rong Chen, Longhua Li, Xiaoqi Fu, Zhengyun Wang, Hongfang Liu, Guangfang Li
Summary: We developed trimetallic NiAuPd heterogeneous catalysts through a galvanic replacement reaction and a subsequent chemical reduction process, achieving efficient hydrogen generation from formic acid decomposition through Fermi level engineering and plasmonic effect.
Article
Chemistry, Multidisciplinary
Jiankang Sun, Zhengyun Wang, You Xu, Tiansui Zhang, Deyu Zhu, Guangfang Li, Hongfang Liu
Summary: In this study, a highly efficient electrocatalyst was developed by anchoring Co nanoparticles on N-doped porous carbon material. The catalyst showed comparable catalytic activity with commercial 20% Pt/C for the oxygen reduction reaction. A home-made Zn-air battery exhibited excellent performance with a stable discharge voltage for up to 9 days. The enhanced performance of the electrocatalyst was attributed to its high content of pyridinic-N and graphitic-N species, extra Co loading, and porous structure.
Article
Chemistry, Physical
Y. Lei, Z. N. Jiang, X. Q. Zeng, Y. Y. Li, X. Wang, H. F. Liu, G. A. Zhang
Summary: In this study, ZIF-67@DTMS/EP composite coating was prepared by adding ZIF-67@DTMS nanoparticles, which significantly improved the corrosion resistance and adhesive force of the composite coating. Molecular dynamics simulations revealed the mechanism of how ZIF-67@DTMS nanoparticles influenced the anti-corrosion performance of the epoxy coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Jianing Liang, Zhizhan Li, Jinguo Cheng, Jinlei Qin, Hongfang Liu, Deli Wang
Summary: Hierarchical P2-Na2/3Ni1/3Mn2/3O2 hollow microspheres with nanosheets structure are constructed, providing substantial Na+ channels, short diffusion pathways, and accommodating volume changes. The cathode delivers high initial Coulombic efficiency and energy density, as well as improved cycle stability.
Article
Biochemistry & Molecular Biology
Huihai Wan, Tiansui Zhang, Junlei Wang, Zhuang Rao, Yizhe Zhang, Guangfang Li, Tingyue Gu, Hongfang Liu
Summary: Stainless steels are vulnerable to microbiologically influenced corrosion (MIC) in the presence of sulfate reducing bacteria (SRB). The study compared the SRB MIC behaviors of four stainless steels with different alloying element compositions. The results showed that the sequence of sessile cell formation and uniform corrosion rate was inversely proportional to the chromium (Cr) content. The stainless steel with the lowest Cr and molybdenum (Mo) contents suffered the most severe pitting corrosion.
BIOELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhuang Rao, Deyu Zhu, You Xu, Minqiu Lan, Lipei Jiang, Zhengyun Wang, Beibei Tang, Hongfang Liu
Summary: An interconnected and zwitterion-functionalized covalent porous material (CPM) based on carbon nanotubes and a Schiff-base network (CNT@ZSNW-1) is developed as a highly efficient proton-conductive accelerator. The CNT@ZSNW-1 structure offers additional proton-conducting sites and promotes water retention capacity, leading to enhanced proton conductivity and peak power density in a composite proton-exchange membrane (PEM) with Nafion. This study provides a potential reference for the design and preparation of functionalized CPMs to expedite proton transfer in PEMs.
Article
Materials Science, Multidisciplinary
Huihai Wan, Tiansui Zhang, Zixuan Xu, Zhuang Rao, Guoan Zhang, Guangfang Li, Hongfang Liu
Summary: The effect of sulfate reducing bacteria (SRB) on galvanic corrosion between 2205 SS and X52 carbon steel in enriched artificial seawater was comprehensively investigated. This study is significant for understanding microbiologically influenced corrosion of bimetallic composite pipelines. Electrochemical tests revealed that galvanic effect was higher in the SRB-containing medium compared to the sterile medium. The coupling also accelerated the corrosion of 2205 SS, resulting in a 13-fold increase in weight loss.
Article
Chemistry, Multidisciplinary
Yanan Wei, Weihua Li, Hongfang Liu, Hongwei Liu
Summary: Hydrogels with excellent antibiofouling properties were prepared by in situ synthesis of spindle CaCO3-Chitosan/poly (vinyl alcohol) (SCC/PVA) hydrogels inspired by seashells. The morphologies, structure, and components of the hydrogels were characterized. The SCC/PVA hydrogels exhibited excellent underwater superoleophobicity properties and remarkable resistance to protein, bacteria, and algae adhesion. The SCC/PVA-3 hydrogel had the highest superoleophobicity and compressive strength, and significantly reduced the settlement of Navicula, Nitzschia, and Closterium on its surface, as well as inhibiting the adhesion of elegans in the South China Sea for 180 days.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Applied
Tiansui Zhang, Huihai Wan, Zixuan Xu, Yizhe Zhang, Jiawei Dai, Hongfang Liu
Summary: Readily synthesized and highly antibacterial polyhexamethylene guanidine molybdate (PHMG-MoO4) can significantly improve the resistance of epoxy coating to sulfate reducing bacteria (SRB) biofilm as a filler. In SRB inoculated medium, no SRB biofilm formed on PHMG-MoO4/epoxy coating after 120 days, and the corrosion current density of the epoxy coating painted carbon steel decreased by 99.0% after addition of PHMG-MoO4 in the coating. There were also fewer fouling organisms on PHMG-MoO4/epoxy coating after 4 months of immersion in the actual seawater.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Materials Science, Multidisciplinary
Yizhe Zhang, Tiansui Zhang, Huihai Wan, Guangfang Li, Hongfang Liu
Summary: The anaerobic water-line corrosion of 980 high-strength steels in artificial seawater containing SRB was investigated. The specimen suffered serious pitting corrosion in the water-line region, where the corrosion rate was about two times higher than that of under water. A great amount of sessile SRB on the surface of the water-line area induced a continuous gully-shaped pitting on the high-strength steel with an average hole depth of 11 μm/ 14 d. Meanwhile, the different component and structure of SRB biofilms accumulated in water-line and under water regions induced a galvanic effect, which further accelerated the corrosion rate in the liquid-phase coupled region.
Article
Materials Science, Multidisciplinary
Zixuan Xu, Tiansui Zhang, Huihai Wan, Hongwei Liu, Tingyue Gu, Hongfang Liu
Summary: This study investigated the microbial corrosion behavior of Ti-6Al-4V (TC4) alloy caused by electroactive Desulfovibrio ferrophilus biofilm in enriched artificial seawater with soluble electron shuttle. The addition of riboflavin shuttle did not significantly affect the cell counts but accelerated the micro-biologically influenced corrosion of TC4 alloy. The Hilbert-Huang transform revealed the evolution of corrosion pits, with maximum pit depth increasing with electron shuttle concentration. Electrochemical measurements indicated that riboflavin shuttle decreased the electron barrier and increased the anodic dissolution rate. The phase, organization, and grain size of the alloy were influenced by the microbially influenced corrosion (MIC).
Article
Chemistry, Multidisciplinary
Zhuang Rao, Deyu Zhu, You Xu, Minqiu Lan, Lipei Jiang, Zhengyun Wang, Beibei Tang, Hongfang Liu
Summary: In this study, a high-efficiency proton-conducting accelerator, CNT@ZSNW-1, was constructed by growing SNW-1 onto carbon nanotubes (CNTs) and subsequently functionalizing with zwitterions. The composite PEM with CNT@ZSNW-1 displayed significantly improved proton conductivity and power density compared to recast Nafion. This study provides a potential reference for the development of functionalized CPMs to expedite proton transfer in PEMs.
Article
Chemistry, Multidisciplinary
Tayyaba Iftikhar, Muhammad Irfan Majeed, Ayesha Aziz, Anees A. Khadom, Zhuo Huang, Ghazala Ashraf, Guangfang Li, Muhammad Asif, Fei Xiao, Hongfang Liu
Summary: Electrochemical sensors based on HKUST-1/rGO/CuO/α-Fe2O3 nanocomposites have been successfully utilized for simultaneous detection of hydroquinone and resorcinol. These nanocomposites exhibit high electrocatalytic activity, increased surface area, and excellent conductivity, leading to enhanced redox reactions.
ENVIRONMENTAL SCIENCE-NANO
(2023)
