1
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Construction of highly efficient separable p-n junction based light driven composite (NiFe2O4/MnWO4) for improved solar light utilisation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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2
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Oranzie M, Douman SF, Uhuo OV, Mokwebo KV, Sanga N, Iwuoha EI. Chronocoulometric signalling of BNP using a novel quantum dot aptasensor. Analyst 2022; 147:4829-4837. [DOI: 10.1039/d2an01357f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study is a first-time report of the development of a quantum dot based aptasensor for brain natriuretic peptide (BNP) detection using chronocoulometry for real-time analysis.
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Affiliation(s)
- Marlon Oranzie
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
- Department of Chemistry, University of Cape Town, Rondebosch, Cape Town, 7700, South Africa
| | - Samantha F. Douman
- Department of Chemistry, University of Cape Town, Rondebosch, Cape Town, 7700, South Africa
| | - Onyinyechi V. Uhuo
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Kefilwe V. Mokwebo
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Nelia Sanga
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Emmanuel I. Iwuoha
- SensorLab (University of the Western Cape Sensor Laboratories), Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
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3
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Manchala S, Gandamalla A, Vempuluru NR, Muthukonda Venkatakrishnan S, Shanker V. High potential and robust ternary LaFeO 3/CdS/carbon quantum dots nanocomposite for photocatalytic H 2 evolution under sunlight illumination. J Colloid Interface Sci 2020; 583:255-266. [PMID: 33002697 DOI: 10.1016/j.jcis.2020.08.125] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 08/15/2020] [Accepted: 08/31/2020] [Indexed: 11/26/2022]
Abstract
Exploitation of the novel, robust, and advanced photocatalytic systems with high efficiency is the present demand for clean, green, and sustainable energy production. Carbon quantum dots (CQDs) have attracted tremendous interest in efficient H2 evolution from photocatalysis due to its remarkable visible-light harvesting and electron transport properties. Here, for the first time, a smart ternary nanocomposite comprises encapsulated CQDs with LaFeO3 spherical nanoparticles and CdS nanorods is synthesized by a simple hydrothermal procedure for the efficient photocatalytic H2 evolution under sunlight illumination. PXRD, FT-IR, FE-SEM, TEM, and XPS studies are performed to ensure the successful fabrication of ternary LaFeO3/CdS/CQD nanocomposite. The efficient H2 evolution rate (HER) of 25,302 μmol h-1 gcat-1 is achieved for LaFeO3/CdS/CQD nanocomposite, which is 602.4, 2.6, 29.8, 2.0 and 1.1 times higher than that of pristine LaFeO3, pristine CdS, and composites such as LaFeO3/CdS, LaFeO3/CQD, and CdS/CQD. Photocurrent and lifetime PL studies reveal, encapsulation of CQDs with the LaFeO3/CdS heterojunction can facilitate easy and efficient separation of photo-generated excitons. Altogether the fabrication of CQDs provides an ideal avenue for the development of high potential advanced photocatalytic systems for sustainable H2 production with remarkable efficiencies.
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Affiliation(s)
- Saikumar Manchala
- Department of Chemistry, National Institute of Technology, Warangal 506004, Telangana, India; Centre for Advanced Materials, National Institute of Technology, Warangal 506004, Telangana, India; Department of Chemistry, Indian Insititute of Technology, Hauz Khas, New Delhi 110016, India
| | - Ambedkar Gandamalla
- Department of Chemistry, National Institute of Technology, Warangal 506004, Telangana, India; Centre for Advanced Materials, National Institute of Technology, Warangal 506004, Telangana, India
| | - Navakoteswara Rao Vempuluru
- Nano Catalysis and Solar Fuels Research Laboratory, Department of Materials Science and Nanotechnology, Yogi Vemana University, Vemanapuram, Kadapa 516005, Andhra Pradesh, India
| | - Shankar Muthukonda Venkatakrishnan
- Nano Catalysis and Solar Fuels Research Laboratory, Department of Materials Science and Nanotechnology, Yogi Vemana University, Vemanapuram, Kadapa 516005, Andhra Pradesh, India
| | - Vishnu Shanker
- Department of Chemistry, National Institute of Technology, Warangal 506004, Telangana, India; Centre for Advanced Materials, National Institute of Technology, Warangal 506004, Telangana, India.
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4
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Zhou Y, Wang W, Zhang C, Huang D, Lai C, Cheng M, Qin L, Yang Y, Zhou C, Li B, Luo H, He D. Sustainable hydrogen production by molybdenum carbide-based efficient photocatalysts: From properties to mechanism. Adv Colloid Interface Sci 2020; 279:102144. [PMID: 32222608 DOI: 10.1016/j.cis.2020.102144] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 03/13/2020] [Accepted: 03/17/2020] [Indexed: 12/28/2022]
Abstract
Hydrogen is considered to be a promising energy carrier to solve the issue of energy crisis. Molybdenum carbide (MoxC) is the typical material, which has similar properties of Pt and thought to be an attractive alternative to noble metals for H2 evolution. The study of MoxC as alternative catalyst for H2 production is almost focused on electrocatalytic field, while the application of MoxC as a co-catalyst in photocatalytic H2 evolution has received in-depth research in recent years. Particularly, MoxC exhibits significant enhancement in the H2 production performance of semiconductors under visible light irradiation. However, a review discussing MoxC serving as a co-catalysts in the photocatalytic H2 evolution is still absent. Herein, the recent progress of MoxC on photocatalytic H2 evolution is reviewed. Firstly, the preparation methods including chemical vapor deposition, temperature programming, and organic-inorganic hybridization are detailly summarized. Then, the fundamental structure, electronic properties, and specific conductance of MoxC are illustrated to illuminate the advantages of MoxC as a co-catalyst for H2 evolution. Furthermore, the different heterojunctions formed between MoxC and other semiconductors for enhancing the photocatalytic performance are emphasized. Finally, perspectives regarding the current challenges and the future research directions on the improvement of catalytic performance of MoxC-based photocatalysts are also presented.
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Affiliation(s)
- Yin Zhou
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Wenjun Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chen Zhang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
| | - Cui Lai
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Min Cheng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Lei Qin
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Yang Yang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chengyun Zhou
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Bisheng Li
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Hanzhuo Luo
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Donghui He
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
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5
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Visible light sensitization of TiO2/Ag/N nanostructures synthesized by microwave irradiation for oxidative degradation of organic dyes. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2343-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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6
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Surface and interface modification strategies of CdS-based photocatalysts. INTERFACE SCIENCE AND TECHNOLOGY 2020. [DOI: 10.1016/b978-0-08-102890-2.00010-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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7
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Castro I, Byzynski G, Dawson M, Ribeiro C. Charge transfer mechanism of WO 3 /TiO 2 heterostructure for photoelectrochemical water splitting. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.02.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Xu Y, Huang Y, Zhang B. Rational design of semiconductor-based photocatalysts for advanced photocatalytic hydrogen production: the case of cadmium chalcogenides. Inorg Chem Front 2016. [DOI: 10.1039/c5qi00217f] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This review summarizes the recent advances in developing CdX (X = S, Se, Te)-based photocatalyst systems for photocatalytic hydrogen production from water.
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Affiliation(s)
- You Xu
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
| | - Yi Huang
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
| | - Bin Zhang
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
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9
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Lau VWH, Mesch MB, Duppel V, Blum V, Senker J, Lotsch BV. Low-Molecular-Weight Carbon Nitrides for Solar Hydrogen Evolution. J Am Chem Soc 2015; 137:1064-72. [DOI: 10.1021/ja511802c] [Citation(s) in RCA: 272] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vincent Wing-hei Lau
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
- Department
of Chemistry, University of Munich, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Maria B. Mesch
- Department
of Inorganic Chemistry III, University of Bayreuth, Universitätsstraße
30, 95447 Bayreuth, Germany
| | - Viola Duppel
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
- Department
of Chemistry, University of Munich, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Volker Blum
- Department
of Mechanical Engineering and Materials Science and Center for Materials
Genomics, Duke University, Durham, North Carolina 27708, United States
| | - Jürgen Senker
- Department
of Inorganic Chemistry III, University of Bayreuth, Universitätsstraße
30, 95447 Bayreuth, Germany
| | - Bettina V. Lotsch
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
- Department
of Chemistry, University of Munich, Butenandtstraße 5-13, 81377 Munich, Germany
- Nanosystems Initiative
Munich (NIM) and Center for Nanoscience, Schellingstraße 4, 80799 Munich, Germany
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