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Sohail M, Rauf S, Irfan M, Hayat A, Alghamdi MM, El-Zahhar AA, Ghernaout D, Al-Hadeethi Y, Lv W. Recent developments, advances and strategies in heterogeneous photocatalysts for water splitting. NANOSCALE ADVANCES 2024; 6:1286-1330. [PMID: 38419861 PMCID: PMC10898449 DOI: 10.1039/d3na00442b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 12/28/2023] [Indexed: 03/02/2024]
Abstract
Photocatalytic water splitting (PWS) is an up-and-coming technology for generating sustainable fuel using light energy. Significant progress has been made in the developing of PWS innovations over recent years. In addition to various water-splitting (WS) systems, the focus has primarily been on one- and two-steps-excitation WS systems. These systems utilize singular or composite photocatalysts for WS, which is a simple, feasible, and cost-effective method for efficiently converting prevalent green energy into sustainable H2 energy on a large commercial scale. The proposed principle of charge confinement and transformation should be implemented dynamically by conjugating and stimulating the photocatalytic process while ensuring no unintentional connection at the interface. This study focuses on overall water splitting (OWS) using one/two-steps excitation and various techniques. It also discusses the current advancements in the development of new light-absorbing materials and provides perspectives and approaches for isolating photoinduced charges. This article explores multiple aspects of advancement, encompassing both chemical and physical changes, environmental factors, different photocatalyst types, and distinct parameters affecting PWS. Significant factors for achieving an efficient photocatalytic process under detrimental conditions, (e.g., strong light absorption, and synthesis of structures with a nanometer scale. Future research will focus on developing novel materials, investigating potential synthesis techniques, and improving existing high-energy raw materials. The endeavors aim is to enhance the efficiency of energy conversion, the absorption of radiation, and the coherence of physiochemical processes.
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Affiliation(s)
- Muhammad Sohail
- Huzhou Key Laboratory of Smart and Clean Energy, Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China Huzhou 313001 P. R. China
| | - Sana Rauf
- College of Physics and Optoelectronic Engineering, Shenzhen University Shenzhen 518060 PR China
| | - Muhammad Irfan
- Department of Chemistry, Hazara University Mansehra 21300 Pakistan
| | - Asif Hayat
- College of Chemistry and Life Sciences, Zhejiang Normal University 321004 Jinhua Zhejiang P. R. China
| | - Majed M Alghamdi
- Department of Chemistry, College of Science, King Khalid University P. O. Box 9004 Abha 61413 Saudi Arabia
| | - Adel A El-Zahhar
- Department of Chemistry, College of Science, King Khalid University P. O. Box 9004 Abha 61413 Saudi Arabia
| | - Djamel Ghernaout
- Chemical Engineering Department, College of Engineering, University of Ha'il PO Box 2440 Ha'il 81441 Saudi Arabia
- Chemical Engineering Department, Faculty of Engineering, University of Blida PO Box 270 Blida 09000 Algeria
| | - Yas Al-Hadeethi
- Physics Department, Faculty of Science, King Abdulaziz University Jeddah 21589 Saudi Arabia
- Lithography in Devices Fabrication and Development Research Group, Deanship of Scientific Research, King Abdulaziz University Jeddah 21589 Saudi Arabia
- King Fahd Medical Research Center (KFMRC), King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Weiqiang Lv
- Huzhou Key Laboratory of Smart and Clean Energy, Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China Huzhou 313001 P. R. China
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Teja YN, Sakar M. Comprehensive Insights into the Family of Atomically Thin 2D-Materials for Diverse Photocatalytic Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303980. [PMID: 37461252 DOI: 10.1002/smll.202303980] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/05/2023] [Indexed: 11/16/2023]
Abstract
2D materials with their fascinating physiochemical, structural, and electronic properties have attracted researchers and have been used for a variety of applications such as electrocatalysis, photocatalysis, energy storage, magnetoresistance, and sensing. In recent times, 2D materials have gained great momentum in the spectrum of photocatalytic applications such as pollutant degradation, water splitting, CO2 reduction, NH3 production, microbial disinfection, and heavy metal reduction, thanks to their superior properties including visible light responsive band gap, improved charge separation and electron mobility, suppressed charge recombination and high surface reactive sites, and thus enhance the photocatalytic properties rationally as compared to 3D and other low-dimensional materials. In this context, this review spot-lights the family of various 2D materials, their properties and their 2D structure-induced photocatalytic mechanisms while giving an overview on their synthesis methods along with a detailed discussion on their diverse photocatalytic applications. Furthermore, the challenges and the future opportunities are also presented related to the future developments and advancements of 2D materials for the large-scale real-time photocatalytic applications.
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Affiliation(s)
- Y N Teja
- Centre for Nano and Material Sciences, Jain (Deemed to be) University, Jain Global Campus, Kanakapura, Bangalore, Karnataka, 562112, India
| | - Mohan Sakar
- Centre for Nano and Material Sciences, Jain (Deemed to be) University, Jain Global Campus, Kanakapura, Bangalore, Karnataka, 562112, India
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3
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Kalita P, Jyoti Boruah P, Ruchel Khanikar R, Bailung H. Plasma–induced rapid crystallization and surface engraving of amorphous TiOx(OH)y to enhance adsorption and photocatalytic activity. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Hu X, Li X, Yang H, Xu C, Xiong W, Guo X, Xie C, Zeng D. Active W Sites Promoted by Defect Engineering Enhanced C 2H 6S 3 Sensing Performance of WO 3 Nanosheets. ACS Sens 2022; 7:1894-1902. [PMID: 35734877 DOI: 10.1021/acssensors.2c00487] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Defect engineering has received extensive attention as an effective method to tune the gas sensing properties of semiconductor materials. Here, defective WO3 (D-WO3) nanosheets were obtained by a simple hydrogenation process with a detection limit as low as 5 ppb for dimethyl trisulfide (DMTS) and a response of 2.3 times that of the initial WO3 nanosheets to 100 ppb DMTS. Importantly, X-ray photoelectron spectroscopy and Raman spectroscopy confirmed the partial loss of oxygen atoms in D-WO3 nanosheets, and density functional theory calculations found that the W sites near the oxygen defect showed higher adsorption energy for DMTS and transferred more electrons during the gas interaction, indicating that the active W site caused by oxygen atom loss can effectively enhance the reactivity of two-dimensional WO3 nanosheets. Different from the traditional oxygen defect model, this work reveals the positive effect of active metal sites on gas sensing for the first time, which is expected to provide an effective reference for the sensing application of defect engineering in metal oxides.
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Affiliation(s)
- Xiafen Hu
- The State Key Laboratory of Materials and Processing Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Xiang Li
- The State Key Laboratory of Materials and Processing Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Huimin Yang
- The State Key Laboratory of Materials and Processing Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Chengjia Xu
- Hubei Sanjiang Aerospace Jianghe Chemical Technology Co., Ltd. of China, Yichang 444200, People's Republic of China
| | - Weiqiang Xiong
- The State Key Laboratory of Materials and Processing Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.,Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemistry Technology, Xiangyang 441003, People's Republic of China
| | - Xiang Guo
- Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemistry Technology, Xiangyang 441003, People's Republic of China
| | - Changsheng Xie
- The State Key Laboratory of Materials and Processing Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Dawen Zeng
- The State Key Laboratory of Materials and Processing Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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Reza MS, Ahmad NBH, Afroze S, Taweekun J, Sharifpur M, Azad AK. Hydrogen Production from Water Splitting Through Photocatalytic Activity of Carbon‐Based Materials, A Review. Chem Eng Technol 2022. [DOI: 10.1002/ceat.202100513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Md Sumon Reza
- Faculty of Integrated Technologies Universiti Brunei Darussalam Jalan Tungku Link Gadong 1410 Brunei Darussalam
- Department of Mechanical and Mechatronics Engineering, Faculty of Engineering Prince of Songkla University Hatyai Songkhla 90112 Thailand
| | - Nurnazurah Binti Haji Ahmad
- Faculty of Integrated Technologies Universiti Brunei Darussalam Jalan Tungku Link Gadong 1410 Brunei Darussalam
| | - Shammya Afroze
- Faculty of Integrated Technologies Universiti Brunei Darussalam Jalan Tungku Link Gadong 1410 Brunei Darussalam
| | - Juntakan Taweekun
- Department of Mechanical and Mechatronics Engineering, Faculty of Engineering Prince of Songkla University Hatyai Songkhla 90112 Thailand
| | - Mohsen Sharifpur
- Department of Mechanical and Aeronautical Engineering University of Pretoria Pretoria 0002 South Africa
- Department of Medical Research, China Medical University Hospital China Medical University Taichung 406040 Taiwan
| | - Abul Kalam Azad
- Faculty of Integrated Technologies Universiti Brunei Darussalam Jalan Tungku Link Gadong 1410 Brunei Darussalam
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Photoelectrochemical assay for DNA hydroxymethylation determination based on the inhibited photoactivity of black TiO 2 nanosphere by ZnO. Mikrochim Acta 2020; 187:156. [PMID: 32025819 DOI: 10.1007/s00604-020-4131-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 01/20/2020] [Indexed: 10/25/2022]
Abstract
A photoelectrochemical method was proposed for DNA hydroxymethylation determination using black TiO2 (B-TiO2) nanosphere as photoactive material and ZnO as photoactivity inhibitor. After hydroxymethylated DNA (5hmC-DNA) was captured on the probe modified B-TiO2/ITO electrode surface through hybridization, a glycosyl can be then transferred from uridine diphosphoglucose to 5hmC-DNA and formed a covalent structure with -CH2OH in the presence of T4 β-glucosyltransferase (β-GT). Afterwards, based on a series of covalent reaction, amino functionalized ZnO nanoparticles are further immobilized to the surface of the electrode. Due to the capacity to expend the irradiation light and the photogenerated electron of electron donor, the modified ZnO nanoparticles can result in a decreased photocurrent. The developed method shows wide linear ranges from 0.05-200 nM for hydroxymethylated DNA and 1-220 unit·mL-1 for T4-β-glucosyltransferase. The corresponding determination limits were 0.013 nM and 0.24 unit·mL-1, respectively. The enzyme activity inhibited by 4-phenylimidazole was evaluated. This photoelectrochemical method shows high specificity for 5hmC-DNA (compared to 5fC, 5mC, m6A, control) and β-GT (compared to β-AGT, UGT2B7), and shows excellent stability for testing 5hmC (RSD = 2.75%). Graphical abstractSchematic representation of photoelectrochemical method for DNA hydroxymethylation and β-glucosyltransferase detection based on the glycosylation reaction of -CH2OH in 5-hydroxymethylcytosine and the inhibition activity of ZnO to the photoactivity of black TiO2 nanospheres.
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7
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Yan B, Du C, Lin Z, Yang G. Photothermal conversion assisted photocatalytic hydrogen evolution from amorphous carbon nitrogen nanosheets with nitrogen vacancies. Phys Chem Chem Phys 2020; 22:4453-4463. [PMID: 32052825 DOI: 10.1039/d0cp00132e] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Amorphous carbon nitrogen (a-CN) has attracted a lot of attention due to its unique properties, different from those of its crystal form. Here, we demonstrate a near-infrared (NIR) photothermal conversion assisted photocatalytic hydrogen evolution from a-CN with nitrogen vacancies (a-CNN) nanosheets. Experiments suggest that sp2 hybridized C[double bond, length as m-dash]C structures can be created in a-CNN. These structures, just like small islands, disperse on a-CNN, leading to fluorescence quenching and a superior vis-NIR light absorption. Meanwhile, these structures, like "hot islands", can generate a stronger NIR photothermal conversion. A series of in situ characterization techniques are developed to clarify the detailed mechanism of photothermal conversion assisted photocatalytic hydrogen evolution. It is found that photothermal conversion can not only accelerate the drift velocity of the photo-induced carrier, but also increase the carrier concentration, which finally promotes the photocatalytic hydrogen evolution. Due to photothermal conversion assistance, the hydrogen production rate of a-CNN nanosheets is promoted to 3.1 mmol g-1 h-1 compared to 0.71 mmol g-1 h-1 for a-CN, in which the NIR photothermal conversion is proven to contribute a 16% promotion to the hydrogen production. These findings suggest that creating an NIR photothermal conversion of photocatalysts by constructing "hot islands" can greatly promote photocatalytic hydrogen production.
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Affiliation(s)
- Bo Yan
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, Guangdong, P. R. China.
| | - Chun Du
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, Guangdong, P. R. China.
| | - Zhaoyong Lin
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, Guangdong, P. R. China.
| | - Guowei Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, Guangdong, P. R. China.
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8
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Yan B, Du C, Yang G. Constructing Built-in Electric Field in Ultrathin Graphitic Carbon Nitride Nanosheets by N and O Codoping for Enhanced Photocatalytic Hydrogen Evolution Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1905700. [PMID: 31885160 DOI: 10.1002/smll.201905700] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Codoping of N and O in ultrathin graphitic carbon nitride (g-C3 N4 ) nanosheets leads to an inner electric field. This field restrains the recombination of photogenerated carriers and, thus, enhances hydrogen evolution. The layered structure of codoped g-C3 N4 nanosheets (N-O-CNNS) not only provides abundant sites of contact with the reaction medium, but also decreases the distance over which the photogenerated electron-hole pairs are transported to the reaction interface. Quantum confinement in the ultrathin structure results in an increased bandgap and makes the photocatalytic reaction more favorable than bulk g-C3 N4 . Under visible light irradiation, N-O-CNNS with 3 wt% Pt achieves a hydrogen evolution rate of 9.2 mmol g-1 h-1 and a value of 46.9 mmol g-1 h-1 under AM1.5 with 5 wt% Pt. Thus, this work paves the way for designing efficient nanostructures with increased separation/transfer efficiency of photogenerated carriers and, hence, increased photocatalytic activities.
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Affiliation(s)
- Bo Yan
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, Guangdong, P. R. China
| | - Chun Du
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, Guangdong, P. R. China
| | - Guowei Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, Nanotechnology Research Center, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, Guangdong, P. R. China
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9
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Rabin NN, Ohmagari H, Islam MS, Karim MR, Hayami S. A procession on photocatalyst for solar fuel production and waste treatment. J INCL PHENOM MACRO 2019. [DOI: 10.1007/s10847-019-00889-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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10
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Wang M, Yin H, Zhou Y, Sui C, Wang Y, Meng X, Waterhouse GIN, Ai S. Photoelectrochemical biosensor for microRNA detection based on a MoS 2/g-C 3N 4/black TiO 2 heterojunction with Histostar@AuNPs for signal amplification. Biosens Bioelectron 2019; 128:137-143. [PMID: 30660928 DOI: 10.1016/j.bios.2018.12.048] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/12/2018] [Accepted: 12/21/2018] [Indexed: 12/14/2022]
Abstract
Herein, a novel photoelectrochemical (PEC) biosensor was developed for the ultrasensitive detection of microRNA-396a based on a MoS2/g-C3N4/black TiO2 heterojunction as the photoactive material and gold nanoparticles carrying Histostar antibodies (Histostar@AuNPs) for signal amplification. Briefly, MoS2/g-C3N4/black TiO2 was deposited on an indium tin oxide (ITO) electrode surface, after which gold nanoparticles (AuNPs) and probe DNA were assembled on the modified electrode. Hybridization with miRNA-396a resulted in a rigid DNA: RNA hybrid being formed, which was recognized by the S9.6 antibody. The captured antibody can further conjugate with the secondary IgG antibodies of Histostar@AuNPs, thereby leading to the immobilization of horse radish peroxidase (HRP). In the presence of HRP, the oxidation of 4-chloro-1-naphthol (4-CN) by H2O2 was accelerated, producing the insoluble product benzo-4-chlorohexadienone on the electrode surface and causing a significant decrease in the photocurrent. The developed biosensor could detect miRNA-396a at concentrations from 0.5 fM to 5000 fM, with a detection limit of 0.13 fM. Further, the proposed method can also be used to investigate the effect of heavy metal ions on the expression level of miRNAs. Results suggest that the biosensor developed herein offers a promising platform for the ultrasensitive detection of miRNA.
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Affiliation(s)
- Minghui Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Huanshun Yin
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China.
| | - Yunlei Zhou
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Chengji Sui
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Yue Wang
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Xiangjian Meng
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China
| | - Geoffrey I N Waterhouse
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China; School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Shiyun Ai
- College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, PR China.
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11
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Zhong R, Zhang Z, Luo S, Zhang ZC, Huang L, Gu M. Comparison of TiO2 and g-C3N4 2D/2D nanocomposites from three synthesis protocols for visible-light induced hydrogen evolution. Catal Sci Technol 2019. [DOI: 10.1039/c8cy00965a] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Knowledge of the interfacial structure of nanocomposite materials is a prerequisite for rational design of nanostructured photocatalysts.
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Affiliation(s)
- Ruyi Zhong
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
| | - Zisheng Zhang
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
| | - Shuqi Luo
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
| | - Z. Conrad Zhang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Dalian 116023
- China
| | - Limin Huang
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
| | - Meng Gu
- Department of Materials Science and Engineering
- Southern University of Science and Technology
- Shenzhen
- China
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12
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Dai Z, Song XZ, Cao J, He Y, Wen W, Xu X, Tan Z. Dual-stimuli-responsive TiO x /DOX nanodrug system for lung cancer synergistic therapy. RSC Adv 2018; 8:21975-21984. [PMID: 35541696 PMCID: PMC9081125 DOI: 10.1039/c8ra02899k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/09/2018] [Indexed: 11/21/2022] Open
Abstract
Biological applications of nanosheets are rapidly increasing currently, which introduces new possibilities to improve the efficacy of cancer chemotherapy and radiotherapy. Herein, we designed and synthesized a novel nano-drug system, doxorubicin (DOX) loaded titanium peroxide (TiO x ) nanosheets, toward the synergistic treatment of lung cancer. The precursor of TiO2 nanosheets with high specific surface area was synthesized by a modified hydrothermal process using the polymer P123 as a soft template to control the shape. TiO x nanosheets were obtained by oxidizing TiO2 nanosheets with H2O2. The anti-cancer drug DOX was effectively loaded on the surface of TiO x nanosheets. Generation of reactive oxygen species, including H2O2, ·OH and ·O2 -, was promoted from TiO x nanosheets under X-ray irradiation, which is effective for cancer radiotherapy and drug release in cancer cells. In this way, chemotherapy and radiotherapy were combined effectively for the synergistic therapy of cancers. Our results reinforce the DOX loaded TiO x nanosheets as a pH sensitive and X-ray controlled dual-stimuli-responsive drug release system. The cytotoxicity, cellular uptake, and intracellular location of the formulations were evaluated in the A549 human non-small cell lung cancer cell line. Our results showed that TiO x /DOX complexes exhibited a greater cytotoxicity toward A549 cells than free DOX. This work demonstrates that the therapeutic efficacy of DOX-loaded TiO x nanosheets is strongly dependent on their loading mode and the chemotherapeutic and radiotherapy effect is improved under X-ray illumination, which provides a significant breakthrough for future applications of TiO x as a light activated drug carrier in cancer chemotherapy and radiotherapy.
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Affiliation(s)
- Zideng Dai
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Xue-Zhi Song
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Junkai Cao
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Yunping He
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Wen Wen
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Xinyu Xu
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
| | - Zhenquan Tan
- School of Petroleum and Chemical Engineering, Dalian University of Technology Panjin 124221 P. R. China
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13
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Su T, Shao Q, Qin Z, Guo Z, Wu Z. Role of Interfaces in Two-Dimensional Photocatalyst for Water Splitting. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03437] [Citation(s) in RCA: 607] [Impact Index Per Article: 101.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Tongming Su
- School
of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
- Center
for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Qian Shao
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- College
of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Zuzeng Qin
- School
of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Zili Wu
- Center
for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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14
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Ding Y, Zhang X, Chen L, Wang X, Zhang N, Liu Y, Fang Y. Oxygen vacancies enabled enhancement of catalytic property of Al reduced anatase TiO 2 in the decomposition of high concentration ozone. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.03.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Song TT, Yang M, Chai JW, Callsen M, Zhou J, Yang T, Zhang Z, Pan JS, Chi DZ, Feng YP, Wang SJ. The stability of aluminium oxide monolayer and its interface with two-dimensional materials. Sci Rep 2016; 6:29221. [PMID: 27381580 PMCID: PMC4933898 DOI: 10.1038/srep29221] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 06/16/2016] [Indexed: 11/29/2022] Open
Abstract
The miniaturization of future electronic devices requires the knowledge of interfacial properties between two-dimensional channel materials and high-κ dielectrics in the limit of one atomic layer thickness. In this report, by combining particle-swarm optimization method with first-principles calculations, we present a detailed study of structural, electronic, mechanical, and dielectric properties of Al2O3 monolayer. We predict that planar Al2O3 monolayer is globally stable with a direct band gap of 5.99 eV and thermal stability up to 1100 K. The stability of this high-κ oxide monolayer can be enhanced by substrates such as graphene, for which the interfacial interaction is found to be weak. The band offsets between the Al2O3 monolayer and graphene are large enough for electronic applications. Our results not only predict a stable high-κ oxide monolayer, but also improve the understanding of interfacial properties between a high-κ dielectric monolayer and two-dimensional material.
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Affiliation(s)
- Ting Ting Song
- Institute for Structure and Function and Department of Physics, Chongqing University, Chongqing, 400044 People’s Republic of China
| | - Ming Yang
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), #08-03, Innovis, 2 Fusionopolis Way, 138634 Singapore
- Centre for Advanced 2D Materials and Graphene Research, National University of Singapore, 6 Science Drive 2, 117546 Singapore
| | - Jian Wei Chai
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), #08-03, Innovis, 2 Fusionopolis Way, 138634 Singapore
| | - Martin Callsen
- Department of Physics, National University of Singapore, 2 Science Drive 3, 117542 Singapore
| | - Jun Zhou
- Department of Physics, National University of Singapore, 2 Science Drive 3, 117542 Singapore
| | - Tong Yang
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), #08-03, Innovis, 2 Fusionopolis Way, 138634 Singapore
- Centre for Advanced 2D Materials and Graphene Research, National University of Singapore, 6 Science Drive 2, 117546 Singapore
| | - Zheng Zhang
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), #08-03, Innovis, 2 Fusionopolis Way, 138634 Singapore
| | - Ji Sheng Pan
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), #08-03, Innovis, 2 Fusionopolis Way, 138634 Singapore
| | - Dong Zhi Chi
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), #08-03, Innovis, 2 Fusionopolis Way, 138634 Singapore
| | - Yuan Ping Feng
- Department of Physics, National University of Singapore, 2 Science Drive 3, 117542 Singapore
| | - Shi Jie Wang
- Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research), #08-03, Innovis, 2 Fusionopolis Way, 138634 Singapore
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Nanodeserts: A Conjecture in Nanotechnology to Enhance Quasi-Photosynthetic CO2Absorption. INT J POLYM SCI 2016. [DOI: 10.1155/2016/5027879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This paper advances “nanodeserts” as a conjecture on the possibility of developing the hierarchical structured polymeric nanomaterials for enhancing abiotic CO2fixation in the soil-groundwater system beneath deserts (termed as quasi-photosynthetic CO2absorption). Arid and semiarid deserts ecosystems approximately characterize one-third of the Earth’s land surface but play an unsung role in the carbon cycling, considering the huge potentials of such CO2absorption to expand insights to the long-sought missing CO2sink and the naturally unneglectable turbulence in temperature sensitivities of soil respiration it produced. “Nanodeserts” as a reconciled concept not only indicate a conjecture in nanotechnology to enhance quasi-photosynthetic CO2absorption, but also aim to present to the desert researchers a better understanding of the footprints of abiotic CO2transport, conversion, and assignment in the soil-groundwater system beneath deserts. Meanwhile, nanodeserts allow a stable temperature sensitivity of soil respiration in deserts by largely reducing the CO2release above the deserts surface and highlighting the abiotic CO2fixation beneath deserts. This may be no longer a novelty in the future.
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