Article
Spectroscopy
Muhammad Imran, Zohaib Saeed, Muhammad Pervaiz, Kashif Mehmood, Rabia Ejaz, Umer Younas, Hafiz Amir Nadeem, Shah Hussain
Summary: The photocatalytic activity of TiO2 was improved by co-doping with Fe, Co, and S via the sol-gel method. Through a series of experiments and characterization, it was found that under specific conditions, 99.3% of Congo red could be degraded within 70 minutes of irradiation time.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Polymer Science
Byung-Geon Park
Summary: In this study, TiO2 photocatalysts doped with metal ions and nitrogen were prepared using a sol-gel method. The N/Ni/TiO2 showed the highest photocatalytic activity and sterilization efficiency among the samples tested, due to its extended light absorption region and high optical intensity.
Article
Green & Sustainable Science & Technology
Yin Zhang, Guomin Zhao, Lu Gan, Hailan Lian, Mingzhu Pan
Summary: A novel S-doped carbon nanosheet (SCN)/ZnO composite photocatalyst was synthesized and showed outstanding photocatalytic performance for organic pollutants, high reusability, and stability. This study provides a highly efficient visible-light photocatalyst for environmental purification.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Mehala Kunnamareddy, Karmegam Natchimuthu, Kavitha Tangavelu, Senthilkumar Palanisamy, Barathi Diravidamani, Priyadharsan Arumugam, Ranjith Rajendran
Summary: In this study, Mg-S co-doped TiO2 nanoparticles were synthesized using the sol-gel method and their photocatalytic activity under simulated visible light was examined. The Mg-S co-doped TiO2 nanoparticles exhibited a pure anatase structure with a decreased band gap energy compared to pristine TiO2. They showed excellent photocatalytic activity and achieved a maximum degradation efficiency of 94.8% for methylene blue dye. Additionally, the antimicrobial activity of Mg-S co-doped TiO2 nanoparticles against Escherichia coli and Staphylococcus aureus was investigated, and the maximum antibacterial activity was achieved by doping and co-doping with Mg/S.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
Caroline Ponraj, P. Santhosh Kumar, Sumit Sarkar, C. Krishnamoorthi, N. Manikandan, G. Vinitha, Joseph Daniel
Summary: Photocatalysis is a research hot topic due to its wide applications in environmental remediation and renewable energy. This study reports the synthesis and activity of magnetic BiFe1-xCoxO3 (x = 0, 0.025, 0.05, 0.075 & 0.10) photocatalysts under visible light irradiation. The results show that increasing dopant concentration leads to decreasing crystallite size, decreasing bandgap, increasing magnetic behavior, and enhanced photocatalytic activity.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
He Jiang, Yan Zhong, Kaixun Tian, Haoliang Pang, Yaoyao Hao
Summary: The study demonstrates the successful degradation of bisphenol A (BPA) using a nitrogen- and sulfur-doped carbon quantum dot-modified MIL-101(Fe) heterojunction under visible light-induced activation of persulfate. The composite material shows remarkable catalytic performance and excellent reusability, providing a novel perspective on the fabrication of heterojunction photocatalysts for organic contaminant degradation.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Thi-Phuong-Thao Vu, Dinh-Trinh Tran, Viet-Cuong Dang
Summary: A novel N,C,S-TiO2/WO3/rGO Z scheme photocatalyst was successfully synthesized with excellent photocatalytic performance for the degradation of Direct Blue 71. It showed high efficiency in generating effective electrons and holes under visible light, with minimal electron-hole recombination. The catalyst demonstrated superior stability and recyclability, achieving over 83.0% degradation efficiency after 3 cycles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Ghader Hosseinzadeh, Naser Ghasemian, Sahar Zinatloo-Ajabshir
Summary: The TiO2/graphene nanocomposite supported on clinoptilolite nanoplate prepared by hydrothermal method showed significantly higher photocatalytic degradation efficiency for nitenpyram insecticide under visible light, mainly due to the advantages of clinoptilolite and graphene, such as microporous structure and enhancement of effective surface area. The hydroxyl radicals were identified as the main active species responsible for the photocatalytic degradation of nitenpyram. This study provides a new insight for fabricating more effective zeolite and graphene-based nanocomposite photocatalysts for environmental remediation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Anzai Shi, Kai Sun, Yanxuan Wu, Panjie Xiang, Igor B. Krylov, Alexander O. Terent'ev, Xiaolan Chen, Bing Yu
Summary: The oxygen-doped graphite-like carbon nitride (OCN) photocatalyst shows better catalytic performance under visible light irradiation compared to the original, offering a potential expansion in the development of novel heterogeneous photocatalysts for applications in organic synthesis.
JOURNAL OF CATALYSIS
(2022)
Article
Materials Science, Multidisciplinary
Hui Yang, Lu Jia, Zhipeng Zhang, Bin Xu, Qitao Zhang, Saisai Yuan, Yonghao Xiao, Zhaodong Nan, Ming Zhang, Yongcai Zhang, Teruhisa Ohno
Summary: In this study, the photocatalytic abilities of Fe ions doped ceria with different morphologies for gaseous acetaldehyde degradation were compared. The results showed that Fe/CeO2-r nanorods exhibited 4.72 times higher photooxidation ability for acetaldehyde removal compared to pure CeO2-r nanorods. The analysis revealed that Fe/CeO2-r and CeO2-r mainly exposed {110} and {100} facets, while CeO2 and Fe/CeO2 with cube morphology mainly exposed {100} facets. The study also confirmed that Fe/CeO2 {110} is more conducive to acetaldehyde absorption and carbon dioxide desorption, and the doping of Fe ions improves the photocatalytic efficiency of ceria-based photocatalysts.
APPLIED MATERIALS TODAY
(2022)
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
Chemistry, Physical
Wei-Hsiang Huang, Chin-Jung Lin, Tsung-Han Huang, Chia-Yu Chang, Shu-Chih Haw, Hwo-Shuenn Sheu, Shih-Yun Chen, Chung-Li Dong, Krishna Kumar, Bing Joe Hwang, Wei-Nien Su, Chi-Liang Chen
Summary: In this study, Fe(III) ions were incorporated into TiO2 hollow submicrospheres, which served as an excellent photocatalyst. The experimental parameters such as flow rate, rotation speed, and contaminant concentration were found to improve the catalyst activity. Fe-TiO2 hollow submicrospheres with different Fe wt% were prepared, and it was discovered that 2.5 wt% Fe-TiO2 exhibited the best photocatalyst activity. The Fe(III) doping not only increased the interaction between transition metal (Fe and Ti) 3d orbitals in TiO2, but also promoted the Fe(III)/Fe(II) redox kinetics and the associated photo-Fenton degradation of acetaminophen.
APPLIED SURFACE SCIENCE
(2023)
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
Chemistry, Multidisciplinary
Hyeonkyeong Lee, Hyun Sung Jang, Na Yeon Kim, Ji Bong Joo
Summary: The study presents a synthetic strategy to fabricate Cu-doped TiO2 hollow nanostructures for visible light responsive photocatalysis. The Cu-doped TiO2 photocatalysts exhibit excellent photocatalytic performance for phenol degradation under visible light conditions. The preparation method involves sol-gel coating, ion exchange, calcination, and acid leaching processes. The superior photocatalytic performance is attributed to the uniformly doped Cu2+ ions, narrow bandgap, and more reactive TiO2 surface.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
S. Sudhagar, S. Sathees Kumar, I. J. Isaac Premkumar, V. Vijayan, R. Venkatesh, S. Rajkumar, Mandeep Singh
Summary: The hydrothermal method was used to synthesize TiO2 nanoparticles and TiO2/La2O3, TiO2/Al2O3 composites. The crystal structure, shape, and optical characteristics were studied using FTIR spectroscopy, XRD, UV-Vis absorption spectroscopy, and SEM. Photocatalytic properties were evaluated by degrading methylene blue (MB) and crystal violet (CV) dyes under UV and visible light. TiO2/La2O3 exhibited the highest photocatalytic efficiency, while TiO2/Al2O3 showed the lowest efficiency.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Engineering, Environmental
Xiuwen Cheng, Guoping Pan, Xiujuan Yu
CHEMICAL ENGINEERING JOURNAL
(2015)
Article
Engineering, Environmental
Dong Li, Xiuwen Cheng, Xiujuan Yu, Zipeng Xing
CHEMICAL ENGINEERING JOURNAL
(2015)
Article
Electrochemistry
Dong Li, Zipeng Xing, Xiujuan Yu, Xiuwen Cheng
ELECTROCHIMICA ACTA
(2015)
Article
Electrochemistry
Xiuwen Cheng, Guoping Pan, Xiujuan Yu
ELECTROCHIMICA ACTA
(2015)
Article
Materials Science, Multidisciplinary
Dong Li, Xiujuan Yu, Xiuwen Cheng
FUNCTIONAL MATERIALS LETTERS
(2015)
Article
Chemistry, Multidisciplinary
Pu Wang, Huiling Liu, Huan Fu, Xiuwen Cheng, Bing Wang, Qinghua Cheng, Jian Zhang, Pan Zou
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2015)
Article
Chemistry, Physical
Xiuwen Cheng, Huiling Liu, Qinghua Chen, Junjing Li, Pu Wang
Article
Engineering, Environmental
Qinghua Chen, Huiling Liu, Yanjun Xin, Xiuwen Cheng
CHEMICAL ENGINEERING JOURNAL
(2014)
Article
Electrochemistry
Qinghua Chen, Huiling Liu, Yanjun Xin, Xiuwen Cheng
ELECTROCHIMICA ACTA
(2013)
Article
Electrochemistry
Xiuwen Cheng, Huiling Liu, Qinghua Chen, Junjing Li, Pu Wang
ELECTROCHIMICA ACTA
(2013)
Article
Electrochemistry
Xiujuan Yu, Yuhang Zhang, Xiuwen Cheng
ELECTROCHIMICA ACTA
(2014)
Article
Chemistry, Physical
Xiuwen Cheng, Huiling Liu, Qinghua Chen, Junjing Li, Xiujuan Yu
JOURNAL OF ALLOYS AND COMPOUNDS
(2013)
Article
Engineering, Environmental
Xiuwen Cheng, Huiling Liu, Qinghua Chen, Junjing Li, Pu Wang
JOURNAL OF HAZARDOUS MATERIALS
(2013)
Article
Chemistry, Multidisciplinary
Qi Zhao, Xiuwen Cheng, Juan Wu, Xiujuan Yu
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2014)
Article
Materials Science, Multidisciplinary
Pan Guoping, Cheng Xiuwen, Yu Xiujuan, Zheng Tong
RARE METAL MATERIALS AND ENGINEERING
(2014)