Article
Engineering, Chemical
M. Faisal, Mabkhoot Alsaiari, Md. A. Rashed, Farid A. Harraz
Summary: The study aimed to create novel and highly influential photocatalyst frameworks utilizing ZnO/SnO2 nanocomposites and active carbon (AC) to address environmental concerns. The fabricated 10% AC@ZnO/SnO2 nanocomposites showed remarkable removal of target antibiotics and destruction of insecticides and MB complex structures under visible light conditions.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Chemistry, Physical
M. Faisal, Jahir Ahmed, Jari S. Algethami, Ali S. Alkorbi, Saeed A. Alsareii, Farid A. Harraz
Summary: Surface modification and bandgap engineering of ZnTiO3 is important for improving its photocatalytic performance. In this study, a ternary photocatalyst composed of ZnTiO3 nanostructures, polypyr-role doped carbon back (PPy-C), and gold nanoparticles (Au NPs) was developed. The synthesized Au@PPy-C/ZnTiO3 photocatalyst showed enhanced degradation efficiency under visible light illumination compared to bare ZnTiO3, attributed to its well-ordered mesoporous structure, high surface area, and effective decline in recombination rate of charge carriers.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Adil Alshoaibi, Shumaila Islam
Summary: Sol-gel-based titania nanoparticles, Silica-titania nanocomposite, and zinc supported silica-titania nanocomposites were synthesized at low temperature. The study showed that zinc nanoparticles were homogeneously distributed in the silica-titania nanocomposite, and the doping of zinc enhanced the photocatalytic activity of the material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Shumaila Islam, Adil Alshoaibi, Hazri Bakhtiar, Kawther Alamer, Javed Mazher, Zakia Hassan Alhashem, Mohammad Rafe Hatshan, Shrouq H. Aleithan
Summary: Due to polluted water remediation, semiconductor nano photocatalysis has been considered as a promising approach to address the issue. However, the slow reaction rates and high electron-hole recombination have hindered their large-scale applications. In this study, heterogeneous nano photocatalysts, such as sol-gel-based mesoporous titania nanoparticles (TNPs) and silica-titania nanocomposite (STNC) supported with CdTe (CdTe/STNC), were synthesized for photocatalytic applications. The CdTe/STNC catalyst exhibited a large surface area and pore size distribution, and demonstrated high photocatalytic activity with methylene blue degradation of 95% after 180 min of ultraviolet radiation.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Materials Science, Ceramics
Adil Alshoaibi, Shumaila Islam
Summary: Semiconductor nano photocatalysis is a promising method for polluted water remediation. However, the high recombination rate and low reaction rate of electrons and holes hinder their large-scale applications. Therefore, heterogeneous nano photocatalysts are needed to promote their practical applications. In this study, gold nanoparticles-doped anatase nanoparticles were synthesized and heat-treated, showing improved photocatalytic activity after 2 hours of treatment.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Daniele Spada, Pantaleone Bruni, Stefania Ferrari, Benedetta Albini, Pietro Galinetto, Vittorio Berbenni, Alessandro Girella, Chiara Milanese, Marcella Bini
Summary: In this study, Sn/SnOx@C composites were prepared using electrospinning method, which showed greatly improved performance compared to conventional electrodes. The electrodes exhibited fast kinetics and stable cycling performance, making them promising for low-cost lithium-ion batteries.
Article
Engineering, Environmental
Fatemeh Rashidashmagh, Yasmina Doekhi-Bennani, Mostafa Tizghadam-Ghazani, Jan Peter van der Hoek, Ali Mashayekh-Salehi, Bas S. G. J. Heijman, Kamyar Yaghmaeian
Summary: A novel sol-gel method was employed to efficiently synthesize SnO2 nanoparticles for catalyzing the ozonation of acetaminophen (ACT). The optimized catalyst, SnNaC-550, exhibited excellent performance in degrading and mineralizing ACT, showing potential for environmental remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Ying Liu, Ling Chen, Hao Jiang, Chunzhong Li
Summary: A novel structure of ultrafine SnO2 nanoparticles anchored on carbon nanotubes foam with subsequent carbon coating (SnO2/NCF-CNTs@C) is demonstrated. NCF-CNTs serve as conductive substrates for SnO2 nanoparticles, promoting the transfer of electrons and ions. The carbon coating layer prevents falling and pulverization of SnO2 nanoparticles and alleviates volume expansion. The SnO2/NCF-CNTs@C hybrids exhibit excellent rate and cycle performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Muchen Wu, Chong Ouyang, Ziran Ye, Shunbo Li, Zhanglian Hong, Mingjia Zhi
Summary: Composite aerogels with metallic Ag and semiconductor CeO2 phases were prepared and studied for photocatalytic CO2 reduction. The addition of Ag greatly improved the activity and selectivity of the composite aerogels, attributed to the surface plasmon resonance effect brought by Ag.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Environmental Sciences
Tran Le Luu, Pham Thi Kim Ngan
Summary: Textile wastewater containing harmful organic compounds and colors can affect aquatic life and human health. This study aims to fabricate Ti/SnO2-Nb2O5 electrodes for the treatment of textile wastewater. The Ti/SnO2-Nb2O5 electrode with a mole ratio of 3:7 showed the best performance with a longest service life of 39 hours in textile wastewater treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
M. Faisal, Mohammed Jalalah, Farid A. Harraz, Ahmed Mohamed El-Toni, Joselito P. Labis, M. S. Al-Assiri
Summary: The study successfully synthesized Ag and PANI doped ZnTiO3 ternary photocatalyst, demonstrating its high efficiency in environmental remediation. The formation of the novel ternary photocatalyst altered the bandgap energy of ZnTiO3 and exhibited excellent degradation performance under visible light illumination.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Rasha A. El-Kholy, Heba Isawi, Ehab Zaghlool, Elsayed A. Soliman, Mostafa M. H. Khalil, Moustafa M. Said, Abd-elhameed M. El-Aassar
Summary: This study focuses on the photocatalytic degradation of methylene blue (MB) on erbium ion (Er3+) doped TiO2 under visible light. The synthesized (Er3+/TiO2) nanocomposite was characterized and different parameters were studied for the photoreactor (PR) and the synthesized catalyst. The results showed that under UV light, pure TiO2 degraded by 85%, while under visible light, (Er3+/TiO2) achieved a maximum degradation of 77% at pH 5 and improved efficiency at a low motor speed of 40 rpm. However, the degradation efficiency decreased to 70% with an increase in MB concentration.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Zi Ang Chen, Xinfeng Yan, Mingjia Zhi
Summary: Thermal reduction of sol-gel derived CuWO4 creates Cu-WO3_x composite with enhanced visible light absorption and a metal-metal oxide interface, leading to improved photocatalytic activity in the non-oxidative coupling of methane reaction. This is attributed to the abundant oxygen vacancies and additional visible light absorbance provided by the Cu nanoparticles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Materials Science, Multidisciplinary
Sipei Zhang, Ying Xu, Wen Zhang, Peng Cao
Summary: Cu and Y co-doped TiO2 nanoparticles were prepared using an acid-catalytic sol-gel process, resulting in a single anatase phase with reduced crystallite size. SEM observations showed uniform nanospheres being synthesized under the proposed conditions. XPS results demonstrated the presence of Cu+ and Y3+ ions. The photoactivity of the co-doped TiO2 was improved due to effective separation of electron-hole pairs, increased formation of active radicals, and increased surface area.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Chemical
M. Faisal, Md A. Rashed, Jahir Ahmed, M. A. M. Alhmami, M. K. Asif Khan, Mohammed Jalalah, S. A. Alsareii, Farid A. Harraz
Summary: The study designed a highly efficient visible light ternary photocatalyst by combining ZnTiO3 nanostructures, chitosan, and platinum nanoparticles, which successfully degraded 94.48% of the target insecticide within 25 minutes, exhibiting ultrafast performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)