Article
Chemistry, Physical
Jiyuan Zang, Changzhao Chen, Xinxin Chen, Yu Yang
Summary: In this study, a semiconductor photocatalyst with enhanced absorption and rapid carrier dynamics was constructed by modifying carbon quantum dots onto the surface of Bi4O5Br2. The modified composite exhibited excellent degradation performance of bisphenol A due to the up-conversion luminescence of carbon quantum dots and the unique energy level of the two materials. The introduction of carbon quantum dots played a vital role in visible-light-driven degradation. The successful introduction of carbon quantum dots and the possibility of Z-scheme charge transfer were confirmed by structural characterization and spectroscopy measurements. The degradation mechanism of bisphenol A under Z-type charge transfer was proposed based on various tests. This work provides new insights for designing efficient photocatalysts with narrow band gap and up-conversion properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Chemical
Hassan Alamgholiloo, Nader Noroozi Pesyan, Ahmad Poursattar Marjani
Summary: In this study, a Fe2O3/CNT/MIL heterostructure was developed for the degradation of ofloxacin (OFX) antibiotics under visible light irradiation (λ > 420 nm). The introduction of α-Fe2O3 and NH2-MIL-125 enhanced the separation of photogenerated electron-hole pairs, resulting in a high photodegradation rate of OFX. The loading of SWCNTs improved the electrical conductivity of α-Fe2O3 and NH2-MIL-125, further enhancing the photodegradation activity. (OH)· and O·2- were identified as the main active species responsible for the degradation process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Huiru Zuo, Chenyu Wu, Haoyu Du, Hao Shi, Yiwen Fu, Tongtong Zhang, Qishe Yan
Summary: A Z-scheme heterojunction photocatalyst, Ag-AgBr/Bi2O2CO3/CNT, was constructed using carbon nanotubes as electron mediators. It showed improved photocatalytic activity for the degradation of antibiotics, tetracycline, under visible light irradiation.
Article
Environmental Sciences
Yuan Wen, Zhaowei Wang, Yonghui Cai, Mengxi Song, Kemin Qi, Xiaoyun Xie
Summary: This study successfully prepared a highly efficient BiVO4/CQDs/beta-FeOOH photocatalyst and revealed its mechanism. The photocatalyst showed significantly improved removal efficiency of ofloxacin under visible-light irradiation and exhibited good reusability. Additionally, the study also reported for the first time the phenomenon of directional transformation of reactive groups in the photocatalysis process under different pH conditions.
Article
Environmental Sciences
Yanqing Cong, Jiaxin Yi, Shengna Liang, Feng Zhang, Yi Zhang, Shi-Wen Lv
Summary: In this study, a novel 500NiCo(2)O(4)@CdS-5%Ag photocatalytic composite was successfully fabricated, which showed enhanced visible light absorption and restrained recombination of photogenerated charge carriers. The deposition of Ag further promoted the transfer of charge carriers and accelerated the reaction rate. The composite displayed excellent stability and high removal efficiency in the photocatalytic degradation of organic pollutants, providing inspiration for designing novel photocatalytic systems.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Feng Qin, Yaya Ma, Shizheng Zheng, Changyuan Hu, Lin Wei, Ruofan Yang, Yanting Ma, Cuiqing Zhang
Summary: The synthesis of a novel Z-scheme N-CQDs/Sn3O4 heterojunction through a facile hydrothermal method showed superior visible light photocatalytic activity for the degradation of methyl orange. The improved photocatalytic behavior was mainly attributed to the formation of a Z-scheme heterostructure between N-CQDs and Sn3O4 interfaces.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Chemistry, Physical
Hassan Sepehrmansourie, Hassan Alamgholiloo, Nader Noroozi Pesyan, Mohammad Ali Zolfigol
Summary: In this study, a double Z-scheme heterojunction material UiO-66/NH2-MIL-125/g-C3N4 was developed for the degradation of OFL antibiotics under visible light irradiation. The material exhibited high photocatalytic activity and a significantly higher degradation rate constant compared to pristine UiO-66/MIL-125. Radical trapping and EPR experiments confirmed the essential role of (OH)-O-center dot and O-center dot(2)- in OFL photodegradation. This research not only provides a novel approach to construct MOF on other MOFs but also offers a new method for removing emerging pollutants from wastewater.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Gancheng Zuo, Yuting Wang, Wei Liang Teo, Qiming Xian, Yanli Zhao
Summary: Constructing direct Z-scheme heterojunction (DZH) is crucial for improving the efficiency and stability of catalysts for photocatalytic water splitting. In this study, ultrathin TiO2 nanosheets were integrated into ZnIn2S4 to produce TiO2-ZnIn2S4 heterostructure nanoflowers, enhancing the overall system performance. The optimized DZH nanoflowers exhibit enhanced PWS activity and excellent stability, making them promising candidates for efficient water splitting applications.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Essossimna Djatoubai, Muhammad Shuaib Khan, Sajjad ul Haq, Golnaz Heidari, Lijing Ma, Shaohua Shen
Summary: This study successfully couples BiFeO3 nanocuboids with two-dimensional Ca(2)Nb(3)O(10) nanosheets to form a direct Z-scheme heterojunction, achieving efficient photocatalytic O-2 evolution. The improved response can be attributed to a better contact interface between the oppositely charged surfaces and the advantages of the perovskite nature of both components. By surface modification, this study provides a novel strategy to modulate the surface charge of BiFeO3 nanocuboids and achieves the highest O-2 evolution response among BiFeO3-based heterostructures to date.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Xiaojing Yu, Haoran Qiu, Zhe Wang, Bin Wang, Qingnan Meng, Shaodong Sun, Yufei Tang, Kang Zhao
Summary: The TiO2-Au-BiOI heterojunction exhibited superior photocatalytic performance for N2 photofixation, outperforming other heterostructured photocatalysts and showing promising potential for future applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Qing Han, Shiwen Du, Yumin Wang, Ziwu Han, Hongjing Li, Hu Xu, Pengfei Fang
Summary: In this work, few-layered MoSe2 nanosheets were grown vertically on TiO2 nanorods to synthesize a direct Z-scheme heterojunction, exhibiting efficient piezocatalytic and piezo-photocatalytic performance. The MoSe2/TNr heterostructure showed superior piezoelectric degradation efficiency and a piezo-photoelectric synergistic effect. This study broadens the application prospects of piezocatalysis and piezo-photocatalysis in renewable energy harvesting and water purification.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Environmental
Cheng Jin, Shaosheng Rao, Juan Xie, Zhongti Sun, Jingsong Gao, Yi Li, Bing Li, Siwei Liu, Lei Liu, Qinqin Liu, Juan Yang
Summary: A novel hierarchical ternary photocatalyst was synthesized, which consists of TiO2/W18O49 Z-scheme heterojunction and Ti3C2Tx-MXene cocatalyst. The composite showed dual charge transfer routes and maintained high photooxidation-reduction capacity, leading to a high photocatalytic bactericidal rate for Escherichia coli. The study highlights the importance of constructing multiple electronic transmission channels in photocatalytic systems for high bactericidal performance and demonstrates the effectiveness of photocatalytic materials in the biological field.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Dongying Wang, Binghua Ren, Shuangyang Chen, Sinan Liu, Wei Feng, Yan Sun
Summary: Snowflake-like BiVO4 and TiO2 microspheres were synthesized via a hydrothermal method and then physically mixed to create BiVO4/TiO2 composites with a Z-scheme heterojunction. The composites exhibited high photocatalytic performance and showed potential for degrading pollutants in wastewater.
Article
Engineering, Environmental
Xuelian Li, Saleem Raza, Changkun Liu
Summary: Electrospun TiO2@Ag@Cu2O nanofibers photocatalyst exhibits excellent visible light catalytic degradation performance, achieving a degradation efficiency of 99% for methylene blue within two hours. The combination of surface plasmon resonance effect of Ag and Z-scheme heterojunction structure contributes to the enhanced efficiency of the photocatalyst.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Analytical
Fubin Pei, Shasha Feng, Wei Hu, Qingli Hao, Bing Liu, Xihui Mu, Wu Lei, Zhaoyang Tong
Summary: A sandwich signal-off type photoelectrochemical immunosensor was successfully fabricated based on a composite heterojunction of tungsten oxide/titanium oxide microspheres as signal amplification platform and carbon microspheres loaded with gold nanoparticles as the label. The immunosensor exhibited excellent photoelectric performance and demonstrated a higher sensitivity (2.53 times) and lower limit of detection (3.17 times) compared to the label-free type sensor in detecting the nucleocapsid protein of SARS-CoV-2. This indicates a promising application prospect for the developed sandwich-type immunosensor.
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)