Article
Chemistry, Physical
Kousik Das, Ratnadip De, Francis Verpoort, Soumyajit Roy
Summary: This study demonstrates the compartmentalization and micro-heterogeneity induction in a continuous reaction medium of water and CO2 using a SOM catalyst, with successful reduction of CO2 to formic acid. The compartmentalized reaction spaces show different catalytic principles, with perturbation of catalyst surface area inversely affecting product yield. The assembly-disassembly cascade illustrates the application of systems chemistry principles in controlled catalysis and release of products.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Duoduo Gao, Jiachao Xu, Huogen Yu, Yongping Liu, Jiaguo Yu
Summary: A hydroxyl-enriched highly crystalline TiO2 suspensible photocatalyst was synthesized using a simple ethanol-controlled hydrolysis and in situ crystallization method, and exhibited a significantly higher H-2 evolution rate than the well-known commercial P25 TiO2 without any cocatalysts.
CHEMICAL COMMUNICATIONS
(2021)
Article
Environmental Sciences
Xiao Qu, Jianbin Lin, Wei Qiang, Chuntao Chen, Dongping Sun
Summary: Photocatalytic activity of Titanium dioxide (TiO2) can be enhanced through structural regulation by chemical reduction method. The modified TiO2 samples show strong light absorption ability and exhibit excellent degradation performance for various organic pollutants.
Article
Chemistry, Multidisciplinary
Ruhumuriza Jonathan, Shafiq Ur Rehman, Feng Cao, Hui Xu, Xuejuan Ma, Junwei Wang, Yifan Liu, Yinghua Niu, Xian Jian, Nasir Mahmood
Summary: Developing high-efficiency and low-cost visible light photocatalyst is challenging. This study developed a large-scale preparation of ultrafine TiO2@C hybrid visible light photocatalyst using ultra-low temperature air calcination method. The TiO2@C hybrids showed enhanced photocatalytic degradation performance for formaldehyde and methyl orange under visible light irradiation due to their novel structure with rich defect active sites and small band gap.
NANOTECHNOLOGY REVIEWS
(2023)
Review
Chemistry, Physical
Aloka Kumar Sahu, Xiu Song Zhao, Sreedevi Upadhyayula
Summary: The design and application of semiconductor-based photocatalytic technology have significant impacts on addressing the world's energy crisis and environmental degradation. Ceria (CeO2), a semiconductor-based photocatalyst, has unique properties and is superior to other metal oxide semiconductors. This review provides a detailed understanding of the mechanistic details, methods for boosting activity and stability, and various photocatalytic applications of CeO2. The challenges and potential areas for future research in the synthesis of CeO2-based photocatalysts are also discussed.
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Diana Rakhmawaty Eddy, Soraya Nur Ishmah, Muhamad Diki Permana, M. Lutfi Firdaus, Iman Rahayu, Yaser A. El-Badry, Enas E. Hussein, Zeinhom M. El-Bahy
Summary: The research proposed the addition of silica as a supporting material to TiO2 to overcome agglomeration and increase thermal resistance. The synthesized composite photocatalyst showed high crystallinity and better dispersibility, leading to superior efficiency in degrading phenolic compounds in wastewater compared to commercial TiO2 P25.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Physical
Abdulrahman A. Alharthi, Mshari Alotaibi, Matar N. Shalwi, Talal F. Qahtan, Imtiaz Ali, Feras Alshehri, Md. Afroz Bakht
Summary: Conversion of solar light into chemical energy using photocatalysts is an important strategy to harvest solar energy. Using TiO2 nanoparticles as photocatalysts, excellent performance can be achieved in terms of yield and reaction time in a clean solar system. Optimization of photocatalytic behavior is possible by varying the photocatalyst amount and solvent system.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Risov Das, Kousik Das, Bitan Ray, Chathakudath P. Vinod, Sebastian C. Peter
Summary: This paper reports a composite photocatalyst composed of nano-sized red phosphorus (RP) and Bi2MoO6 nanoparticles, which can convert CO2 to ethanol. Spectroscopic and experimental evidence demonstrate the crucial role of Bi-Mo dual sites in the reaction process.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Panpailin Seeharaj, Naratip Vittayakorn, John Morris, Pattaraporn Kim-Lohsoontorn
Summary: The development of CeO2/CuO/TiO2 heterojunction photocatalysts has significantly improved the photoconversion of CO2 to ethanol, with CeO2 enhancing light absorption and CuO acting as an electron trap. The combination of both additives has greatly increased the conversion efficiency of CO2 due to improved charge separation and participation in catalytic reactions.
Article
Chemistry, Multidisciplinary
Yao Zhu, Siyuan Fang, Shaoqin Chen, Youjie Tong, Chunling Wang, Yun Hang Hu
Summary: The study focuses on photocatalytic ethane conversion into CH3CH2OOH using a highly efficient visible-light-responsive photocatalyst, Au/WO3. The introduction of thermal energy significantly increased the production yield, and the reaction pathway was revealed through trapping active species and isotope-labeling reactants.
Article
Biotechnology & Applied Microbiology
E. M. Bayan, L. E. Pustovaya, M. G. Volkova
Summary: This review provides information on the classification, sources, and environmental risks of antibiotics in the environment. It also critically evaluates modern wastewater treatment methods for antibiotics removal and highlights the prospects and advantages of the photocatalytic method. Additionally, it describes the efficiency of TiO2 co-doping and the optimal photocatalyst concentrations for antibiotics degradation.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Multidisciplinary
Apisit Karawek, Kittipad Kittipoom, Labhassiree Tansuthepverawongse, Nutkamol Kitjanukit, Wannisa Neamsung, Napat Lertthanaphol, Prowpatchara Chanthara, Sakhon Ratchahat, Poomiwat Phadungbut, Pattaraporn Kim-Lohsoontorn, Sira Srinives
Summary: Photoreduction of carbon dioxide (CO2) to high-value products using a photocatalyst is an effective technique for dealing with CO2 emissions. In this research, TiO2 nanosheets were synthesized using a hydrothermal technique and further composited with graphene oxide and copper oxide to create CTNSG, which exhibited outstanding photoactivity in converting CO2 gas to methane and acetone.
Article
Chemistry, Physical
Se-Jun Kim, Sebastien Lebegue, Stefan Ringe, Hyungjun Kim
Summary: We have developed a computational method based on the GW approximation coupled with an implicit solvation model to investigate the band edge positions of 2D materials immersed in water. We found that the solvent effect is highly sensitive to the atomic and charge distribution of the materials.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Zhou Cao, Qizhao Wang, Hongfei Cheng
Summary: Kaolinite-based composite catalytic materials show promising potential for solving global energy scarcity and environmental pollution with excellent catalytic performance, but face challenges such as difficulty in modification, high cost, and low utilization of visible light.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ji Xia, Jun Wu, Xiashi Zhu
Summary: The PbBiO2Cl/TiO2/CS composite membrane material was prepared by solvent thermal method and casting, and its structure, morphology, and optical properties were characterized. The results showed that the prepared PbBiO2Cl/TiO2/CS membrane exhibited excellent photo-degradation performance for organic pollutants, which was attributed to the formation of composite membranes that reduced electron-hole recombination and improved light absorption properties. Light-generated free radicals played a crucial role during photocatalysis.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)