Article
Food Science & Technology
Indira Karuppusamy, Sabarathinam Shanmugam, Kathirvel Brindhadevi, Mohamad S. AlSalhi, Sandhanasamy Devanesan, M. Surendiran, Nguyen Thuy Lan Chi
Summary: This research paper explores the photocatalytic performance of nitrogen-ion embedded anodized titanium with hydroxyapatite hybrid nanostructure for the degradation of organic contaminants in the environment. The study finds that the anodized titanium specimens with nitrogen-ion embedding exhibit higher surface energy and enhanced photocatalytic performance, with the best performance observed for a dose of 5 x 10(16) N+/cm(2).
FOOD AND CHEMICAL TOXICOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Zhan Yang, Zehao Lin, Jianguo Huang
Summary: A cellulose-based photocatalytic membrane was fabricated by growing NH2-MIL-125 nanoparticles onto the surfaces of ultrathin titania gel-coated cellulose nanofibres. The composite membranes maintained the hierarchical network structures of cellulose and showed enhanced photocatalytic performances due to the effective heterostructure formation between NH2-MIL-125 particles and TiO2 layers.
Article
Chemistry, Physical
Yan Huang, Honggang Lu, Bingnan Wang, Wenbo He, Hongzhou Dong, Lina Sui, Zhixing Gan, Shuai Ma, Beili Pang, Lifeng Dong, Liyan Yu
Summary: Black phosphorus as a promising catalyst for solar hydrogen production has attracted attention, and the addition of MoS2 as a cocatalyst can significantly improve its photocatalytic performance; The 10/0.5 ratio of BP/MoS2 catalyst shows the highest photocatalytic hydrogen evolution performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Qiuhua Yuan, Yuan Yang, Wenshan Wu, Xiaoyi Dai, Junxi Zhong, Youliang Jian, Ruilong Li, Tao Wang, Hong Yu, Xianyou Xia
Summary: In this study, a novel ternary composite material was prepared by combining titanium dioxide (TiO2) with hydroxyapatite (HA) and reduced graphene oxide (RGO). Methylene blue (MB) was used as the target pollutant to evaluate the photocatalytic activity of TiO2/HA/RGO. The results showed that the introduction of HA and RGO effectively enhanced the catalytic performance of TiO2. The ternary composite exhibited excellent dye removal effect, with a removal rate of 99.8% for MB under 120 minutes of simulated sunlight, which was 2 times that of TiO2/HA and 7 times that of TiO2. The improved photocatalytic activity of the ternary composite was mainly attributed to the synergistic effect between TiO2, HA, and RGO. This work provides a new idea for the synthesis of practical photocatalysts.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Linjing Li, Feng Li, Taohai Li
Summary: The rapid development of industry has resulted in severe water pollution, mainly caused by dyes and antibiotics. Photocatalysis is an effective method for treating water pollution, with amorphous semiconductors gaining attention for their excellent photocatalytic properties. In this study, amorphous Sb2WO6, SbPO4, and Sb2WO6/SbPO4 composites were synthesized using an ultrasonic technique, and their physico-chemical properties were characterized. The experiments showed that the prepared samples exhibited high photocatalytic activity against tetracycline (TC) and rhodamine B (RhB) under UV irradiation, with TC degradation efficiency reaching over 80% within 120 minutes. The mechanism of the samples in the photocatalytic degradation process was also analyzed.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Mikail Olam, Nihat Tosun
Summary: The study developed PLA-based polymer composite filaments with TiO2, synthetic HA, and natural HA for biomedical applications. Analysis showed that the composites had good properties with a maximum operating temperature of around 300 degrees Celsius for 3D printing applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Review
Chemistry, Physical
Huaitao Yang, Beibei Yang, Wei Chen, Junjiao Yang
Summary: Titanium dioxide (TiO2), an inexpensive and environmentally friendly photocatalyst, has received extensive attention for its ability to degrade pollutants through photocatalysis. Improving the photocatalytic efficiency of TiO2 involves expanding its photoresponse range and reducing photogenerated-carrier coupling. Element doping can alter the morphology, size, and structure of a heterojunction, leading to enhanced photocatalysis.
Article
Materials Science, Multidisciplinary
Jun-Hyeok Lee, Taeyeon Kim, Eung-Ryong Kim, Eun-Bum Cho, Sang-Chul Jung
Summary: Microwave-assisted Cu2O/Cu/TiO2 and CuxS/TiO2 composite nanoparticles were successfully prepared using different experimental procedures and additives. The morphology and crystal structure of the particles were confirmed with TEM images and XRD patterns, while UV-visible spectra showed the absorbance of copper species in the composite particles.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Lili Cao, Songli Qiao, Xue Li, Qiang Li
Summary: In this study, g-C3N4 was prepared by high-temperature thermal polymerization using urea, and a g-C3N4 composite photocatalyst loaded with MeTMC-COP was prepared by hydrothermal method. The photocatalytic hydrogen generation and degradation capabilities of the composite photocatalysts were investigated, and the results showed that at a mass ratio of 3:1, the g-C3N4/MeTMC-COP composite had the lowest fluorescence peak intensity and the highest specific surface area of 40.95 m(2) g(-1). Compared to g-C3N4, the 3:1 g-C3N4/MeTMC-COP exhibited higher photocatalytic activity, with 100% degradation of Rhodamine B and a hydrogen evolution rate of 11.8 mu mol g(-1) h(-1).
FRONTIERS IN CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
N. R. Khalid, Syed Muhammad Hamza, Faisal Ali, T. Iqbal, M. Rafique, Muhammad Imran, Mohammad A. Assiri
Summary: Wastewater treatment is a severe issue due to the use of different dyes in industries. Researchers have developed CoMoO4/MoO3 composites as a suitable photocatalyst for degrading these dyes. The composites showed improved photocatalytic efficiency, enhanced degradation stability, and extended visible light response. These results were achieved through the formation of p-n junction heterostructure and increased active sites for dye reduction.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Environmental Sciences
Guy Didier Fanou, Mamadou Traore, Benjamin Kouassi Yao, Andrei Kanaev, Khay Chhor
Summary: A new composite photocatalyst was developed by grafting size-selected 5-nm titanium-oxo-alkoxo nanoparticles onto P25-TiO2 nanoparticles and incorporating HAP obtained by co-precipitation of salts. The photocatalytic yield was increased for the composite photocatalysts with the addition of HAP, likely due to a synergy between adsorption and photo-oxidation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Materials Science, Ceramics
Petronela Pascariu, Corneliu Cojocaru, Mihaela Homocianu, Petrisor Samoila, Cosmin Romanitan, Djourelov Nikolay
Summary: A series of tin (Sn)-doped titania (TiO2) composites were prepared by electrospinning and calcination. The effect of dopant amounts and calcination temperatures on the composition, morphology, and photocatalytic activity of the composites was evaluated. The ([1.5%]Sn:TiO2) composite sintered at 500°C showed remarkable photocatalytic activity with a removal efficiency of about 100% and a rate constant of 9.685 x 10-2 min-1. Structural investigations were conducted to explain the photocatalytic activity towards water decontamination.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Yauheni U. Kuvyrkou, Nadzeya Brezhneva, Ekaterina V. Skorb, Sviatlana A. Ulasevich
Summary: This study compared the effects of different types of porous titanium surfaces on the proliferation and osteogenic potential of human mesenchymal stem cells, revealing that ordered porous surfaces are favorable for proliferation while disordered porous surfaces are conducive to osteogenic differentiation. These results stem from the mechanism of mechanotransduction, which regulates stem cell behavior through focal adhesion.
Article
Materials Science, Multidisciplinary
Qiuhua Yuan, Ziqiang Zhang, Yuan Yang, Youliang Jian, Ruilong Li, Xiaoyi Dai, Wenshan Wu, Junxi Zhong, Chen Chen
Summary: This study prepared dense and uniform composite coatings of Sr-doped HA complexed with chitosan, which showed good biocompatibility and promoted cell proliferation, adhesion, and osteogenic differentiation.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Jiacheng Jiang, Baogui Zheng, Wenhe Yu, Xiaowen Wu, Ruiyu Mi, Zhaohui Huang, Yan-gai Liu, Minghao Fang, Xin Min
Summary: A novel g-C3N4 composite photocatalyst was synthesized by incorporating functionalized MWCNT, which resulted in a porous structure in g-C3N4, increasing its specific surface area and active sites. The addition of hydroxylated/carboxylated MWCNT affected the band structure of g-C3N4 and reduced its band gap. The composite with 1 wt% CMWCNT showed the highest photocatalytic degradation efficiency of Rhodamine B and remained 92.71% photocatalytic activity after 5 cycles of degradation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Tingting Yin, Bo Liu, Jiaxu Yan, Yanan Fang, Minghua Chen, Wee Kiang Chong, Shaojie Jiang, Jer-Lai Kuo, Jiye Fang, Pei Liang, Shuhuai Wei, Kian Ping Loh, Tze Chien Sum, Timothy J. White, Ze Xiang Shen
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Materials Science, Characterization & Testing
Z. L. Dong, T. J. White
POWDER DIFFRACTION
(2019)
Article
Chemistry, Physical
Arjak Bhattacharjee, Yanan Fang, Thomas J. N. Hooper, Nicole L. Kelly, Disha Gupta, Kantesh Balani, Indranil Manna, Tom Baikie, Peter T. Bishop, Timothy J. White, John V. Hanna
Article
Multidisciplinary Sciences
Sheng Liu, Shishuai Sun, Chee Kwan Gan, Andres Granados del Aguila, Yanan Fang, Jun Xing, T. Thu Ha Do, Timothy J. White, Hongguo Li, Wei Huang, Qihua Xiong
Article
Chemistry, Physical
Parth Vashishtha, Gautam V. Nutan, Benjamin E. Griffith, Yanan Fang, David Giovanni, Metikoti Jagadeeswararao, Tze Chien Sum, Nripan Mathews, Subodh G. Mhaisalkar, John V. Hanna, Tim White
CHEMISTRY OF MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Guowei Liu, Shancheng Wang, Alfred Iing Yoong Tok, Timothy J. White, Chuanchang Li, Michael Layani, Shlomo Magdassi, Li Ming, Yi Long
Article
Chemistry, Applied
Bingqing Yao, Shun-Kuang Lua, Hui-Shi Lim, Qi Zhang, Xiaoya Cui, Timothy J. White, Valeska P. Ting, ZhiLi Dong
Summary: This study introduces a novel method to predictably synthesize MOF nanoparticles with desired sizes and morphologies through ultrasound-assisted synthesis. Cobalt-doped ZIF-8 with tunable particle sizes and improved nitrogen adsorption-desorption characteristics is achieved, showing enhanced catalytic performance compared to pure ZIF-8 and superior stability compared to monometallic ZIF-67.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Fengxia Wei, Yue Wu, Shijing Sun, Zeyu Deng, Li Tian Chew, Baisong Cheng, Cheng Cheh Tan, Timothy J. White, Anthony K. Cheetham
Summary: Perovskite-related materials, especially Pb-free perovskites, have shown promising properties. This study focuses on the hybrid double perovskite MA(2)KBiCl(6) (MA = methylammonium cation) and its interesting variable temperature behaviors, including a rhombohedral to cubic phase transition at around 330 K and an order to disorder transition for the inorganic cage below 210 K.
Review
Nanoscience & Nanotechnology
Daming Feng, Lixue Zhou, Timothy J. White, Anthony K. Cheetham, Tianyi Ma, Fengxia Wei
Summary: Electrocatalytic synthesis under mild conditions has emerged as an important alternative for industrial applications, particularly in the green ammonia industry. Metal-organic frameworks (MOFs) are competitive candidates for efficient electrocatalytic NH3 synthesis from nitrogen-containing molecules or ions. This review collects and discusses recent advances in MOF-derived electrocatalysts for NH3 electrosynthesis, including their application in N-2 and NO3- reduction reactions. The challenges and prospects for the rational design and fabrication of MOF-based electrocatalysts for electrochemical NH3 synthesis are also presented.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Thomas J. N. Hooper, Yanan Fang, Alasdair A. M. Brown, Suan Hui Pu, Tim J. White
Summary: This study characterized the structure and surface chemistry of CsPbBr3 nanocrystals with controlled diameters, demonstrating Cs-133 NMR as a highly sensitive probe of nanocrystal size. A combined multinuclear solid state NMR and XPS approach was used to study the nanocrystal surface and ligands, revealing Cs-Br rich surface with vacancies passivated by DDAB ligands. The CsPbBr3 NCs were shown to be structurally stable under ambient conditions for up to 6 months, despite some particle agglomeration.
Article
Chemistry, Multidisciplinary
Sai S. H. Dintakurti, Parth Vashishtha, David Giovanni, Yanan Fang, Norton Foo, Zexiang Shen, Claude Guet, Tze Chien Sum, Tim White
Summary: The investigation explores the structural and optical properties of MA(x)Cs(1-x)PbBr(3) mixed cation colloidal nanoparticles, revealing that the nanoparticle composition optimized at 13 mol% Cs exhibits the longest charge carrier lifetime and highest photoluminescence quantum yield. Prototype LEDs fabricated from MA(0.87)Cs(0.13)PbBr(3) demonstrate the promising potential of these mixed cation perovskite nanoparticles for optoelectronic applications.
Article
Chemistry, Multidisciplinary
Parth Vashishtha, Thomas J. N. Hooper, Yanan Fang, Deviana Kathleen, David Giovanni, Maciej Klein, Tze Chien Sum, Subodh G. Mhaisalkar, Nripan Mathews, Tim White
Summary: Non-toxic Rb2CuX3 colloidal nanocrystals with high thermal stability have been synthesized for optoelectronic applications. The one-dimensional crystal structure and PL emission peaks of these nanocrystals make them promising in lighting technology, water sterilisation, and air purification. Their cost-effective and scalable synthesis method under ambient conditions further enhances their commercial potential.
Article
Engineering, Electrical & Electronic
Parth Vashishtha, Benjamin E. Griffith, Alasdair A. M. Brown, Thomas J. N. Hooper, Yanan Fang, Mohammed S. Ansari, Annalisa Bruno, Suan Hui Pu, Subodh G. Mhaisalkar, Tim White, John Hanna
ACS APPLIED ELECTRONIC MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Parth Vashishtha, Sjoerd A. Veldhuis, Sai S. H. Dintakurti, Nicole L. Kelly, Benjamin E. Griffith, Alasdair A. M. Brown, Mohammed S. Ansari, Annalisa Bruno, Nripan Mathews, Yanan Fang, Tim White, Subodh G. Mhaisalkar, John Hanna
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Chemistry, Physical
Yujie Ke, Yin Yin, Qiuting Zhang, Yutong Tan, Peng Hu, Shancheng Wang, Yichao Tang, Yang Zhou, Xinglin Wen, Shaofan Wu, Timothy J. White, Jie Yin, Jinqing Peng, Qihua Xiong, Dongyuan Zhao, Yi Long
