Article
Engineering, Multidisciplinary
Renrong Zheng, Zhen Wang, Chunquan Zhang, Binbin Chen, Haisheng San, Hui Yu
Summary: A hydrogenated black m-TiO2/CeO2 nanocomposite aerogel was prepared and showed enhanced photocatalytic activity in degrading Rhodamine B and water splitting under visible-light irradiation. The photocatalytic enhancement mechanisms included large specific surface area, enhanced conductivity, and the generation of self doped defects in the Z-scheme heterojunction, providing more active sites, extending the absorption range of solar light, and suppressing carrier recombination.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Chemistry, Physical
Liang Tang, Jian Zhao, Xiao Wang, Jiajun Wang, Peng Zhang
Summary: In this study, hierarchical microspheres of SrWO4 assembled with metallic Bi nanoparticles were synthesized, leading to efficient solar-driven hydrogen production from water. The experimental results showed that the noble metal-like behavior of Bi and their electron-sink capacity play a crucial role in enhancing the photocatalytic efficiency.
Article
Chemistry, Multidisciplinary
Vijayarohini Parasuraman, Muhammad Awais Aslam, Parasuraman Perumalswamy Sekar, Van-Quyet Nguyen, Ye eun Lee, Hojae Lee, Woo Ram Lee, Seungdo Kim
Summary: A green synthesis route was developed to produce a visible-light-driven thin carbon layered titanium dioxide (CLT) nanocomposite using ascorbic acid as the carbon precursor. The presence of a thin layer of carbon on the TiO2 surface was observed, and the thickness of the carbon layer was found to be proportional to the concentration of carbon precursor. The CLT nanocomposite exhibited improved surface area and photocatalytic activity compared to commercial TiO2, and it also showed antibacterial activity against E. coli.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Chemical
Zehao Lin, Jianguo Huang
Summary: By utilizing a natural cellulose scaffold, a series of nanotubular H3PW12O40/TiO2 composites were fabricated, inheriting the porous network structure of the cellulose template. The optimal HPW/TiO2 nanocomposite with 15.6 wt% of H3PW12O40 exhibited a significant increase in photocatalytic efficiency compared to pure TiO2 nanotubes, showcasing its potential in organic pollutant degradation. The hierarchical HPW/TiO2 nanocomposites and HPW/TiO2/cellulose composite sheet demonstrated outstanding and recyclable photocatalytic performances, with the photocatalytic mechanism being driven by photo-induced holes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Fayun Wei, Yiwen Huang, Guangyu Zhang, Jiamu Dai, Ruiqing Li, Haifeng Zhang, Mingzheng Ge, Wei Zhang
Summary: Porous ZnTiO3/TiO2 heterostructured photocatalysts, constructed using ZIF-8 as a sacrificial template through hydrothermal and carbonization techniques, exhibit excellent photocatalytic performance under solar light irradiation.
Article
Chemistry, Inorganic & Nuclear
B. Usharani, V. Manivannan
Summary: The rGO-TiO2 nanocomposite was synthesized through a hydrothermal method and characterized using various analytical and spectroscopic techniques. The findings indicate that rGO-TiO2 exhibits excellent photocatalytic performance, with the highest degradation efficiency observed under visible light and sunlight.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Energy & Fuels
Zhu Liu, Kang Xu, Hai Yu, Zhaoqi Sun
Summary: In this study, MoS2/TiO2 heterostructure arrays modified with Ag nanoparticles were successfully synthesized to enhance the photoelectrochemical and photocatalytic properties, with the best performance achieved by a hydrothermal reaction time of 12 hours. The synergistic effect of MoS2/TiO2 heterostructure, surface plasmon resonance of Ag nanoparticles and narrow bandgap of MoS2 was proposed to explain the enhancement of these properties.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Svetlana A. Kuznetsova, Olga S. Khalipova, Konstantin V. Lisitsa, Liliya A. Selunina, Victor V. Khasanov, Alexandra G. Malchik, Yu-Wen Chen
Summary: Hierarchical MoO3/TiO2-SiO2 layered spherical composites were synthesized on anion exchanger template, and their properties and photocatalytic performance were characterized. The formation of TiO2-SiO2 shell on the MoO3 core led to lower oxygen vacancy concentrations and reduced bandgap width. The MoO3/TiO2-SiO2 composites showed higher photocatalytic activity.
APPLIED MATERIALS TODAY
(2022)
Article
Materials Science, Multidisciplinary
Lili Wang, Juanjuan Ren, Qianqian Gong, Jingyue Xuan, Meiling Sun, Haifeng Zhang, Qi Zhang, Guangchao Yin, Bo Liu
Summary: In this study, a high-performance Ag3PO4/TiO2@C composite photocatalyst was successfully fabricated through unique structure and interface designs. The composite exhibited excellent photocatalytic performance due to its larger surface area, better light-harvesting ability, and superior charge transfer and separation characters.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Ceramics
R. Razi, S. Sheibani
Summary: In this study, BiVO4-Cu2O nanocomposites were synthesized using a mechano-thermal method with controlled composition. The effects of structure, composition, and heat treatment on the samples were investigated, leading to the discovery that BiVO4-10%Cu2O exhibited the best photocatalytic performance under visible light irradiation with a degradation rate of 97% for methylene blue.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Amal A. Atran, Fatma A. Ibrahim, Nasser S. Awwad, Hisham S. M. Abd-Rabboh, Mohamed S. Hamdy
Summary: Porous ceria nanoparticles doped with nickel ions were successfully synthesized using a quick and easy auto combustion method. The synthesized materials were characterized by various techniques, and it was found that the incorporation of nickel ions into the ceria framework increased the surface area. Moreover, the nickel-doped samples exhibited a red shift in light absorption and showed significantly improved photocatalytic activity compared to bare ceria.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Environmental Sciences
Shamima Begum, Soumya Ranjan Mishra, Md Ahmaruzzaman
Summary: In this study, n-n type ZnO-SnO2 nanocomposites were synthesized using a one-pot co-precipitation method and employed as photocatalysts for the degradation of Biebrich scarlet dye. The synthesized nanocomposites were characterized using various techniques, and showed excellent degradation performance and reusability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Kajal Sharma, Ravinder Kaushik, Pawan Kumar Pandey, Sumanta Chowdhury, Rituporn Gogoi, Astha Singh, Aditi Halder, Prem Felix Siril
Summary: In this study, hierarchical and hollow microspheres assembly of one-dimensional zinc-trimesic acid (Zn-BTC) MOF nanospikes were successfully synthesized using a single step solvothermal synthesis method. The formed Zn-BTC hierarchical and hollow microspheres were annealed to form ZnO/C hierarchical nanocomposite microspheres. These hierarchical nanocomposite microspheres exhibited enhanced photocatalytic activities for water remediation. The improved photocatalytic performance was attributed to the synergistic effect between the carbon matrix and well-dispersed ZnO quantum dots.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Jianli Liang, Wei Zhang, Zheyang Liu, Qianqian Song, Zhaohua Zhu, Zhiqiang Guan, Heyi Wang, Pengjun Zhang, Jing Li, Min Zhou, Chen Cao, Hui Xu, Yang Lu, Xiangmin Meng, Li Song, Po Keung Wong, Zhifeng Jiang, Chun-Sing Lee
Summary: A hierarchical BN-like flower catalyst with high photocatalytic CO2 reduction activity was synthesized and investigated. The catalyst exhibited significantly improved performance due to its low B-O species content, outperforming reported BN-based catalysts and most metal-free CN catalysts.
Article
Materials Science, Multidisciplinary
Fatemehsadat Moosavi, Alex Lemarchand, Cyrille Bazin, Maria Konstantakopoulou, Mathieu Fregnaux, Christophe Colbeau-Justin, Touraj Tavakoli Gheinani, Andrei Kanaev, Mehrdad Nikravech
Summary: Nanocomposite TiO2 coatings with mixed anatase-rutile crystalline polymorphs and strong adherence to glass substrates were prepared using a spray-plasma deposition method. The coating exhibited enhanced photocatalytic activity for cefixime antibiotic decomposition under UVA light illumination, and the activity significantly increased after the formation of the rutile phase, suggesting a synergistic effect of the two-component solids.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Jinhan Li, Xicheng Li, Shaobin Yu, Shuai Gao, Yang Zhang, Yan Li, Changzheng Wang, Qiang Wang
Summary: Photocatalytic fuel cell (PFC) shows great potential for sustainable electricity production and organic pollutant degradation. However, efficiently degrading organic dyes and antibiotic drugs remains a challenge. In this study, a TiO2-NPs@NF-x photoanode was fabricated to improve the separation efficiency of electrons and holes in the PFC system. The photoanode displayed abundant active sites, enhanced light harvesting capacity, and efficient charge carrier separation. Under specific conditions, the PFC system based on TiO2-NPs@NF-20 photoelectrode demonstrated simultaneous degradation of ciprofloxacin and generation of electricity. Open circuit voltage, short circuit current density, and maximum power density were measured as 1.021 V, 2.4 mA/cm2, and 0.357 mW/cm2, respectively. This cost-effective method contributes to organic waste treatment and power generation.
CHINESE CHEMICAL LETTERS
(2023)
Article
Physics, Applied
Ning Cui, Mengke Xu, Min Guan, Xingfang Liu, Yiping Zeng, Yang Zhang
Summary: In this letter, the relationship between modification bioparticle density (N) and biological regulation ability in extended gate HEMT (EG-HEMT) biosensors is studied. Through analysis, it is demonstrated that N is exponentially related to the area of sensing regions (y) under the same gate electrodes size (S (g)) and concentration, with a fixed exponential magnification of -0.65 +/- 0.05. This formula has been proven to be universally applicable when testing protein and small molecules. Furthermore, the application of N in the structural design of EG-HEMT biosensors suggests that a 10 y structure can provide both high biological regulation ability of biosensors and efficient utilization of chips.
APPLIED PHYSICS EXPRESS
(2023)
Article
Environmental Sciences
Chao Zhang, Yang Zhang, Baoqing Shan
Summary: This study assessed the effects of human activities on heavy metal distributions and fractionation in sediments from villages around Baiyangdian Lake in North China. The results showed that Cd had the highest contribution to potential ecological risk, indicating the importance of human sources in metal contamination. Cd and Zn were found to have significant bioavailability and potential toxicity. The survival rate of Chironomus sp. larvae in sediments from Dizhuang village indicated a high degree of heavy metal toxicity. Enzyme activities in the larvae were also affected by heavy metals. Overall, this study highlights the importance of considering heavy metal pollution in the ecological management of villages around Baiyangdian Lake.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Green & Sustainable Science & Technology
Xiao-jian Wang, Ying Zhang, Shi-li Zheng, Yang Zhang, Shan Qiao, Zhi-qi Long, Ruo-kui Chen, Shuai Han
Summary: In this study, a calcination-assisted structure regulation-solution purification process was proposed to recover waste iron phosphate based on its dissolution performance. The transformation of iron phosphate dihydrate to different structures was observed, resulting in changes in acid dissolution performance. By applying this dissolution behavior, waste iron phosphate was successfully regenerated through calcination, sulfuric acid dissolution, and hydrothermal treatment.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Analytical
Jianping Gao, Ye Ma, Zhenhu Guo, Yang Zhang, Fangyu Xing, Tianyang Zhang, Yingjun Kong, Xi Luo, Liming Xu, Guifeng Zhang
Summary: The study aimed to establish a collagen determination method using an isotope-labeled collagen peptide as an internal reference via HPLC-MS/MS, and to evaluate the degradation process of collagen-based implants in vivo. A specific peptide of bovine type I collagen was identified and a quantification method based on HPLC-MS/MS was established. The results showed that the collagen sponge and ACM were completely degraded at 10 weeks and 18 weeks, respectively.
Review
Chemistry, Multidisciplinary
Yuxin Shi, Wen Su, Fanglong Yuan, Ting Yuan, Xianzhi Song, Yuyi Han, Shuyan Wei, Yang Zhang, Yunchao Li, Xiaohong Li, Louzhen Fan
Summary: Carbon dots (CDs) are emerging carbon nanomaterials with distinct characteristics that make them promising alternatives for electroluminescent light-emitting diodes (LEDs). This review provides a comprehensive overview of currently explored CDs, focusing on their key optical characteristics and design for display and lighting applications. The challenges and prospects in this field are discussed, inspiring more extensive research and practical applications of CD-based LEDs.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ting Yuan, Fanglong Yuan, Laizhi Sui, Yang Zhang, Yunchao Li, Xiaohong Li, Zhan'ao Tan, Louzhen Fan
Summary: A study demonstrates the synthesis of hexagon-shaped carbon quantum dots (H-CQDs) with near-unity photoluminescence quantum yield (PLQY) and high electron mobility. The H-CQD-based light-emitting diodes achieved a high external quantum efficiency and a record maximum brightness. This study shows the potential of CQDs-based electroluminescent devices for display and lighting applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Metallurgy & Metallurgical Engineering
Xuehui Hao, Changzheng Wang, Shuai Guo, Jie Ma, Hui Chen, Xingchuan Zhao
Summary: This study aims to investigate the effect of Cr on the corrosion behavior of ferrite-pearlite steels in an acidic environment. The results from immersion tests and electrochemical experiments show that alloyed Cr improves the corrosion resistance of the steels by reducing the corrosion rate and promoting the formation of protective compounds. This research provides valuable insights for the engineering application of ferrite-pearlite steels in marine environments.
ANTI-CORROSION METHODS AND MATERIALS
(2023)
Article
Chemistry, Physical
Zhipeng Li, Yang Zhang, Wei Lu, Jinglong Li, Jun Su, Yihua Gao, Beibei Zhang
Summary: The atomic structural evolution of anatase-to-rutile phase transformation in TiO2 nanosheets was observed using in situ heating transmission electron microscopy. The transformation process was influenced by the nanosheet surface structure and the crystallographic orientation was related to electron beam irradiation. High-resolution TEM characterization revealed that the nucleation at the edges of the nanosheets led to the formation of rutile phase. It was also found that the reduced valence of Ti, possibly due to the formation of oxygen vacancies, could be observed in electron energy loss spectrum obtained at different temperatures. This discovery sheds light on the unique structure transformation behavior and effective control of polymorph nanostructures in 2D oxides, which could contribute to the discovery of new functionalities.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Civil
Cuimin Feng, Jia-cheng Luo, Xuan-qi Liu, Lu-meng Huang, Hong-ying Yu, Chang-zheng Wang, Jin-shuang Zhang
Summary: Tea polyphenols can be used to develop new types of disinfectants for drinking water. The antibacterial effect of epigallocatechin gallate (EGCG) on Escherichia coli (E. coli) is influenced by the concentration of calcium ions. The analysis of the oxidative damage mechanism and process of EGCG in E. coli in the presence of calcium ions provides a theoretical basis for its use as a disinfectant in drinking water disinfection.
AQUA-WATER INFRASTRUCTURE ECOSYSTEMS AND SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Huimin Xu, Jianqiao Chang, Hao Wu, Haoyu Wang, Wenjing Xie, Yunchao Li, Xiaohong Li, Yang Zhang, Louzhen Fan
Summary: siRNA-based gene therapy is a promising strategy for tumor treatment. Novel gene vectors, such as LAAM GUA-CDs, which can target tumor cells and deliver siRNA without causing side effects, have been designed and synthesized. LAAM GUA-CDs loaded with siBcl-2 exhibit a high tumor inhibition rate, twice as effective as commercial Lipofectamine 2000. LAAM GUA-CDs provide a versatile approach for tumor-targeted siRNA delivery and cancer therapy.
Article
Construction & Building Technology
Yan Li, Changzheng Wang, Feiyang Xue, Kunpeng Zhou, Chong-Chen Wang
Summary: In this study, the analytic hierarchy process (AHP) and geographic information systems (GIS) were used to develop a multidimensional evaluation system for water cultural heritage (WCH) in Beijing. The findings showed significant differences in values among the nine heritage categories, with royal gardens and rivers suggested for greater emphasis on protection. Additionally, the distribution of WCH structures was clustered into four distinct agglomerative zones, mostly located on built-up land with low elevation and gentle slopes, indicating high environmental suitability. A framework for conservation was proposed to guide policy development.
Article
Chemistry, Applied
Hui Li, Changzheng Wang, Xicheng Li, Yang Zhang
Summary: PEG-modified fluorescent carbon dots (PEG-CDs) were synthesized through a solid-state reaction, exhibiting bright blue emission and a high photoluminescence quantum yield (73.9%). The fluorescence of PEG-CDs can be significantly quenched by Ag+, showing high selectivity and sensitivity even in the presence of high concentrations of other metal ions. The fluorescence intensity decreases linearly with Ag+ concentration, with a detection limit of 0.114 nmol/L.
Article
Chemistry, Physical
Chuansheng He, Xiaochen Hu, Xiaohui Peng, Yidan Zhao, Yunchao Li, Xiaohong Li, Louzhen Fan, Yang Zhang
Summary: A convenient method of electrostatic adsorption-assisted solvothermal process is used to synthesize ultrathin Co(OH)2-CoO/graphene oxide nanosheet hybrids as efficient electrocatalysts for oxygen evolution reaction (OER) in alkaline media. The optimal Co-O-H NSs/GO-1.4 mg sample showed outstanding electrocatalytic OER performance, comparable to state-of-the-art Co-based non-self-supporting electrocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Zimu Li, Xicheng Li, Shoufang Xu, Hao Tian, Changzheng Wang
Summary: Antibiotics have become a new type of pollutant in water, with low concentration and biological persistence. Photocatalysis, as a novel water treatment technology, has shown great potential in the treatment of hard-to-degrade pollutants. This study focuses on the efficient identification and preferential degradation of tetracycline hydrochloride using core-shell structured molecularly imprinted TiO2. The prepared TiO2 exhibits higher adsorption capacity, selectivity, and photodegradation performance, with a degradation rate of 82.18% under 60 minutes of light irradiation. The core-shell structured molecularly imprinted TiO2 has advantages such as high removal capacity, stability, and environmental friendliness, making it suitable for the treatment of persistent low-concentration pollutants in water.
NEW JOURNAL OF CHEMISTRY
(2023)
